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1. Error Code Error Count Reserved 00h Power On Hours at Last Occurrence LSB Error Code is a code for the error which occurred The error codes are listed in section 11 Only hardware errors are recorded Error Count is a count of the number of times that the error occurred A value of 65535 indicates that the error occurred this many or more times Power On Hours at Last Occurrence is equal to the number of library system power on hours when this error last occurred 97706346 Plasmon Gx Libraries SCSI Reference Manual 32 10 5 4 Error Log Page 32h The Log Sense Error Log Page is as follows 0 Reserved 0 Page Code 32h Reserved 00h MSB Page Length 2000h First Most Recent Error Info Block 68 131 Second Most Recent Error Info Block LSB 8132 8195 128th Most Recent Error Info Block There are two blocks of error information block A and block B for each of the ten most recent errors The format of each block is as follows MSB Error Code Severity 3 4 MSB File 5 6 MSB Line Number 7 8 MSB Instance Number 9 10 MSB Firmware Version 11 14 MSB Timestamp at First Occurrence Textual Description of Error LSB Error Code is a code for the error that occurred Only hardware errors are recorded 97706346 Plasmon Gx Libraries SCSI Reference Manual 33 10 5 5 Task History Page 33h a Log o Smee Event History Page is as
2. 97706346 Plasmon Gx Libraries SCSI Reference Manual 60 Error Code 70h Reserved 00h Reserved 0 Reserved 00h Additional Sense Length x 7 Reserved 00h Additional Sense Code Additional Sense Code Qualifier Reserved 00h Additional Sense Bytes Sense Key is described below Additional Sense Code and Additional Sense Code Qualifier indicate detailed information related to an error or exception condition SKSV Sense Key Specific Valid equals 1 if the Sense Key Specific field contains valid information Sense Key Specific contains information that is specific to the type of error returned Additional Sense Bytes contain additional information about the error returned The following Sense Key values are returned by the medium changer device Sense Key Descriptions RECOVERED ERROR Indicates that the last command completed successfully with some recovery action performed Information about the first hardware error encountered is available in the data fields above NOT READY Indicates that the medium changer device cannot be accessed h 7 A recoverable hardware failure while performing the command or during self test r parameters supplied as data 6h UNIT ATTENTION Indicates that Mode parameters have been changed or the target has been reset Bh ABORTED COMMAND Indicates that the medium changer device aborted the command This is typically due to a SCSI communication error 2 4 If the Sense
3. 42 06 2F 00 52 Command Aborted by another initiator Not an error reissue command 19 06 3F 01 17 Software has changed Not an error reissue command 19 06 82 80 31 Picker full at power up and exported This error code is currently not used na 0B 43 00 59 Message error 46 0B 45 00 2C Library unable to reselect the host 38 97706346 Plasmon Gx Libraries SCSI Reference Manual 82 0B 47 00 55 Parity error 46 0B 48 00 54 Initiator detected error 46 0B 4E 00 19 jOverlapped commands 38 0B 83 00 35 Barcode scan abort media in picker 33 10 IMPORTANT If this error is received it does not mean that element status is in question only that the barcode information is incorrect because barcodes cannot be read when there is media in the picker The lelement empty full and type information is correct 97706346 Plasmon Gx Libraries SCSI Reference Manual 83 11 2 Suggested Host Application Error Recovery Actions The following is a list of possible procedures that a host could use to recover from the SCSI errors listed in section 11 1 In some if not most cases no action taken by the host will cause full recovery to take place and the User s Guide or Service Manual should be consulted to determine the ultimate cause or corrective action to be taken to rectify the problem Some
4. 48 51 53 67 Power supply failure This fault indicates that the PWR GOOD signal from the supply has signaled an error Communications timeout with DSP A timeout condition has occurred on the internal interface between the main CPU and the DSP Drive timeout error A drive failed to respond to a request within a certain amount of time Failed DSP com This could be a number of faults from internal DSP communication 43 23 24 25 04 80 83 68 DSP driver command abort An internal DSP fault 25 04 80 90 5B Flip calibration failure The flip calibration portion of the robotic motion has faulted 97706346 Plasmon Gx Libraries SCSI Reference Manual 77 04 80 91 5C Pick calibration failure 7 The picker calibration portion of the robotic motion has faulted 04 80 92 5D Lift calibration failure 7 The lift calibration portion of the robotic motion has faulted 04 80 93 5E Pivot calibration failure 7 The pivot calibration portion of the robotic motion has faulted 04 80 94 50 DSP full cal error 7 04 80 96 61 10 station offset failure na This error code is currently not used 04 80 97 5F Alignment calibration failure 7 The alignment portion of the calibration process has faulted 04 80 98 4E Utility slot detected full 6 Utility slots are for internal robotic use only This fault indicates that while doin
5. Check that all cartridges are in their slots correctly Check that the picker moves freely up and down on the shaft Check that the picker is not binding at the I O Station slot or drive 03 DSP communication error An internal error for service 07 Lift position overshoot servoing error Lift is Check that all cartridges are in their slots correctly having trouble servoing to position at the end lof a move Check that the picker moves freely up and down on the shaft Check that the picker is not binding at the I O Station slot or drive 09 Lift motor or encoder failure A hardware fault needing service for one of the following possible sources Lift Belt Lift Motor Lift Cable Lift Circuit Board Main Circuit Board 97706346 Plasmon Gx Libraries SCSI Reference Manual 87 Lift Cable 0A Auto Offset Sensor Failure A hardware fault needing service for one of the following possible sources Auto Offset Sensor Picker Interface Circuit Board Lift Circuit Board Main Circuit Board Lift Cable 0B Picker is not straight tilt in Picker exceeds A hardware fault needing service for one of the specifications following possible sources Picker Assembly with Lift Body Picker Interface Circuit Board Lift Circuit Board Main Circuit Board Lift Cable 0C Lift motor encoder failure This error can occur when the wrong main circuit board is installed in a model A hardware fault needing service
6. ES RA O EI Drive 1 Status Drive 2 Status Drive 3 Status 3 Drive 4 Status Drive 1 4 Status is a user defined value to indicate the good bad status of a drive For example a 1 could indicate a good drive while a 2 could indicate a bad drive 10 23 4 Writing to the Echo Buffer to Test SCSI Communication A 256 byte echo buffer is supported to test communication with the medium changer device To write to the echo buffer set Mode to 2 and Buffer ID to 2 Buffer Offset can be any value between zero and 255 Parameter List Length can be any value between one and 256 The sum of Buffer Offset and Parameter List Length cannot exceed 256 97706346 Plasmon Gx Libraries SCSI Reference Manual 71 The Echo Buffer parameter list is shown below Echo Buffer Parameter Data Application Supplied Data The data transferred is not defined by this specification and may be selected by the application After the buffer is written a Read Buffer command should be used to read the buffer and check its contents The buffer is maintained when the library system is powered off 97706346 Plasmon Gx Libraries SCSI Reference Manual 72 11 Appendix A Error Codes Recovery amp Subcodes 11 1 Medium Changer Device SCSI Error Codes The following is a list of error codes returned by a Request Sense command issued to the medium changer device within the library All values are in hex The codes are listed in Sense Key order See the R
7. Element Status commands to re inventory the medium changer Retry the last command if appropriate If the unit continues to fault log the medium changer sense mark the medium changer failed and display a message to call for service 11 These faults only occur when attempting to download a new revision of software to the library Attempt to re download Flash firmware to library using Write Buffer commands If fault continues make sure that the proper download file is being used NOTE You may have to power cycle the medium changer first This may require power disconnection 97706346 Plasmon Gx Libraries SCSI Reference Manual 84 Procedure Description 12 Log the medium changer sense data Then issue Position to Element command to any storage element with the Invert bit set This causes the transport element to be placed in the flipped position Retry the move or exchange command If this faults specify a transport element address other than 0 see note in the move or exchange command Use the medium transport element not active at the time that the error occurred The medium transport element that was active is identified in the Request Sense return data If fault reoccurs then issue a Rezero Unit command with the RecalOffs bit 1 to cause the library to recalibrate Retry the command NOTE Specifying a non zero transport element address in the Exchange Medium command may allow the library to operate but
8. Main Circuit Board 44 Picker 1 and 2 Home Sensor error when I O Station is extended Check that the I O Station is in the correct position and not jamming the cartridge A hardware fault needing service for one of the following possible sources Picker Assembly without Lift Body Picker Interface Circuit Board Lift Circuit Board Main Circuit Board Lift Cable 45 After extending the I O Station the I O Home sensor is not correct A hardware fault needing service for one of the following possible sources 1 O Station Home Sensor 1 O Station 46 Picker empty after picking from I O Station Check that the I O Station is in the correct position and not jamming the cartridge A hardware fault needing service for one of the following possible sources Picker Assembly without Lift Body 97706346 Plasmon Gx Libraries SCSI Reference Manual 91 47 Picker still has media after putting to I O Check that the picker moves freely up and down on Station the shaft Check that the picker is not binding at the I O Station slot or drive A hardware fault needing service for one of the following possible sources 1 O Station Picker Assembly without Lift Body 50 Media detected in utility slot 1 Media may have been inserted into the Utility slots uring manual loading Utility slots are not available 51 Media detected in utility slot 2 for customer media storage 52 Media detec
9. an titor o Code 1Ah a 00h 21 O I O Page Code Reserved 00h 2 Allocation Length Reserved 00h DBD Disable Block Descriptor is ignored Neither a value of 1 or O will result in a Block Descriptor being reported PC Page Control defines the type of parameter values to be returned Normally a value of 0 is used to return the current values Page Control Description 0 Returns current settings 1 Returns bit mask of changeable settings 2 Returns default settings 3 Returns saved settings Page Code defines the parameter page s to be returned A value of 00h 1Dh 1Eh 1Fh 20h 21h 22h 23h or 3Fh must be used If a value of 0 is used no pages are returned If a value of 1Dh 1Eh 1Fh 20h 21h 22h or 23h is used the corresponding page as described below is returned If a value of 3Fh is used all supported pages are returned The Allocation Length specifies how many bytes of data are to be returned 97706346 Plasmon Gx Libraries SCSI Reference Manual 41 The Mode Sense 6 data block consists of a 4 byte header followed by one or more supported pages The header is shown below followed by the supported pages Mode Sone a Mode Paramete Header Mode Data Length Medium Type 00h Device Specific Parameter 00h Block Descriptor Length 00h Mode Data Length is the length in bytes of the remainder of the Mode Sense 6 return data 10 8 1 Element Address Assignment
10. resent in the lO station 02 04 89 2F Not ready initialization failed 7 A fault occurred such that initialization was not completed successfully at power up or after a Re zero with re calibration was issued 02 80 2C 29 JIO station door is open 8 The IO station door indicates media inserted or lpossibly a hardware malfunction This fault would be issued if a move operation involving the IO station is issued and the unit has sensor indication that there is media in or partially in the IO station 04 44 00 18 Internal target failure 9 This error indicates a system error has occurred which caused an unknown state 04 52 59 56 Unexpected media type at pick 10 Indicates that a media type was not found as expected upon a move operation 04 80 01 1B Flash checksum error 11 This fault only occurs when attempting a software download to the unit and indicates a communication or hardware error 97706346 Plasmon Gx Libraries SCSI Reference Manual 74 04 80 0E 1C Flash program fail main controller This fault only occurs when attempting a software download to the unit and indicates a communication or hardware error 11 04 80 OF 1D Flash program fail DSP This fault only occurs when attempting a software download to the unit and indicates a communication or hardware error This event may cause the library main circuit board to be come unusable 11 04 80 1D 1F
11. 13 2 Reading the Drive Good Bad Status Codes ceesceessecssececeeeeeceeeeecseeeeceseeeesteeeenaeeees 51 10 13 3 Reading from the Echo Buffer to Test SCSI Communication cccocccnnccnonnnonnnconcnannninnninnncnns 51 10 13 4 Reading the Firmware Flash CROCS ii ne eel pened 32 10 14 READ ELEMENT STATUS Command B8h 00 0 cee cesceecesecesecneeseeeeeeeseeaeceaecaeeeneeseesseenaees 52 10 14 1 Medium Transport Element Descriptor oooccconococonocononocononccnnnnnonononcnnnnccnnnnnnonnnncnnnncnnnnncnnns 55 97706346 Plasmon Gx Libraries SCSI Reference Manual vi 10 142 Storage Element Descri pion rito tii ia 57 10 14 3 Import Export Element Descriptor ssssssseesseessenssessseessseesseessetesseesseesseeesseeessresseesseesseee 58 10 14 4 Data Transfer Element Descriptor A 59 10 15 RELEASE ELEMENT Command aia 60 10 16 REQUEST SENSE Command 03b meiosis 60 10 17 REQUEST VOLUME ELEMENT ADDRESS Command BSD ocoonoconoccncconccononononononancnnninncns 65 10 18 RESERVE ELEMENT Command 16hb da 66 10 18 1 Reserve Element List Descriptor a 66 10 19 REZERO UNIT Command 01b oooooooooonnnncncnonannnonnnononocnonnnnnnonononocnonnnnnnononononnononnnnn no nnnnncononanos 66 10 20 SEND DIAGNOSTIC Command 1Dh ooooonccnnccnncnnonnocnnoncnancnncnnconnconncnnnonnnonncn nen ncnnncnn non cnnn ns 67 10 21 SEND VOLUME TAG Command B D occcnnoncooonnncnnconononannnnononocnononnnnononononnononnnnn no nnncnoninnnnos 68 10 22 TEST UNIT READ
12. 9 Slot Maps ui id iii 100 13 Appendix C Gx G Enterprise and G SCSI Differences ooooonnccnnnccnonnconnnnnnnonnncnnncnnnnnona corn cconnnnnnos 105 14 Appendix D UDOZ tE A Ns 111 14 1 TntrodUctiOK jtiiniaaa lina ia il ins sleet 111 97706346 Plasmon Gx Libraries SCSI Reference Manual vii 14 2 Suggested Implementar ias 111 97706346 Plasmon Gx Libraries SCSI Reference Manual viii 1 Glossary of Terms Used A number of terms are used throughout this document Some of these terms are defined here ASC ASCQ Additional Sense Code Additional Sense Code Qualifier Bytes 12 and 13 of the Sense Data block returned by the Request Sense command in response to a CHECK CONDITION from a target device These bytes along with the Sense Key in byte 2 indicate the type of error sensed CDB Command Descriptor Block The structure used to communicate commands from a SCSI initiator device to a SCSI target device Data Transfer Elements DTs The data storage devices MO or UDO within the library system Drive Type A numeric classification of the type of drive installed Element An addressable location within the library system The library system contains four types of elements medium transport elements MTs storage elements STs import export element IEs and data transfer elements DTs ERP The action taken by the library firmware to recover from an error event i e an error recovery procedure Event History Eve
13. Addr16 1 Vendor Identification Plasmon Product Identification Midrange G _ Product Revision Level e g G00a Peripheral Qualifier equals 0 indicating connection to a logical unit or 3h indicating an invalid Logical Unit Number Peripheral Device Type equals O8h indicates a medium changer device or 1Fh indicating an invalid Logical Unit Number RMB Removable Media Bit equals bit of 1 indicating medium is removable ANSI Approved Version equals 2 indicating compliance with SCSI 2 standard 97706346 Plasmon Gx Libraries SCSI Reference Manual 23 AERC Asynchronous Event Reporting Capability equals 0 indicating no support of this feature Response Data Format equals 2 indicating compliance with SCSI 2 standard Additional Length equals 28h Addr16 Address 16 bits equals 1 indicating support of 16 bit SCSI addresses RelAdr Relative Address equals 0 indicating no support of this feature WBus16 Wide Bus 16 bit equals 1 indicating support of this feature Syne Synchronous Data Transfers equals 0 indicating that the unit does not support synchronous data transfers Linked Linked Commands equals 0 indicating no support of this feature CmdQue Command Queuing equals 0 indicating no support of this feature Vendor Identification is Plasmon Product Identification is Midrange G Product Revision Level will indicate the firmware level The defined format is as follows XYYz where X A Z bas
14. Element unexpectedly empty An element was found to be empty of media upon attempt of a move operation 10 04 80 1E 20 Element unexpectedly full An element was found to have media that was lexpected to be empty upon attempt of a move operation 10 04 80 20 21 Pick cartridge failure A robotic operation failed to pick a piece of media and was not able to recover with the normal ERP routines 12 04 04 80 80 21 24 22 24 Store cartridge failure A robotic operation failed to store a piece of media and was not able to recover with the normal ERP routines Drive load failure A Move Medium or Exchange command involving a drive resulted in the drive not indicating media loaded after a prescribed timeout A not loaded condition also should indicate that the drive does not come 12 13 cts a SS E Robotic motion involving the pivot motion has faulted land was not recoverable 04 80 25 25 Drive unload failure na This error code is currently not used An Eject failure is indicated instead 04 80 26 26 Eject failure 14 A Move Medium or Exchange command involving a drive resulted in the drive not ejecting the media 04 80 29 27 SCSI termination power is low na This error code is currently not used 04 80 2F 2A Pivot failure 16 97706346 Plasmon Gx Libraries SCSI Reference Manual 75 04 80 32 2B Lift position fail
15. Gx Libraries SCSI Reference Manual 94 12 Appendix B Host Software Aspects 12 1 Introduction The Plasmon G Series Gx is a family of optical disk robotic library systems capable of holding a number of disk drives and disk cartridges The primary characteristic of the G Series Gx family is support of UDO optical media as well as standard MO optical media The robotic device within each library system is referred to as a medium changer device and it uses the protocols and commands for medium changer devices as defined in the American National Standards Institute SCSI Specification The G Series Gx library system s medium changer device and the disk drives within the library system are all accessed independently There are a number of locations or elements within the library system which are capable of holding disk cartridges These consist of the import export elements the storage elements the medium transport elements and the data transfer elements The import export element is an externally accessible slot through which disk cartridges are added to or removed from the library system It is also known as the IO station The storage elements ST1 STn are locations within the library system s medium store used to store cartridges The medium transport elements MT1 and MT 2 are the optical disk transport mechanisms used to remove optical disks from or return optical disks to the import export element the storage elements or the
16. Key is equal to 5 Illegal Request and the SKSV is set to 1 the Sense Key Specific fields contain the following information 97706346 Plasmon Gx Libraries SCSI Reference Manual 61 15 sksv CD Resemed 0 BPV 16 17 MSB THEE Pointer LSB C D Command Data equals 1 if the illegal parameter is in the command descriptor block or 0 if the illegal parameter is in the data parameters sent BPV Bit Pointer Valid equals 1 if the value in the Bit Pointer field is valid Bit Pointer indicates the left most most significant bit of the field which is in error Field Pointer indicates the byte of the command descriptor block or of the parameter data which in error When a multiple byte field is in error this field contains the first most significant byte of the field which is in error If the Sense Key is equal to 4 Hardware Error or 1 Recovered Error and the SKSV is set to 1 the Sense Key Specific fields contain the following information HEAT 16 17 MSB Actual EN Gn LSB Actual Retry Count equals the number of retries used in attempting to recover from the error Also for these types of errors the Additional Sense Bytes field contains the following information 97706346 Plasmon Gx Libraries SCSI Reference Manual 62 ChgReady AA MT1Full MT2Full FailUti Second InfoValid Reserved 0 Reserved 0 Rsvd 0 20 21 MSB First Source Element Address LSB 22 23 MSB First Destination Eleme
17. Station is in the home position A hardware fault needing service for one of the following possible sources Lift Belt Lift Motor Lift Circuit Board Main Circuit Board Lift Cable 63 During calibration an obstruction was detected in the offset column Co Scan Media Sensor Failure A hardware fault needing service for one of the following possible sources C1 C2 Scan Media Sensor Picker Interface Circuit Board Lift Circuit Board Main Circuit Board C3 SCSI drive test failed no SCSI Response Maintenance information C4 SCSI drive test failed drive never becomes Maintenance information ready C5 Drive test failed drive returned error code Maintenance information C6 Drive test failed drive stopped Maintenance information communicating mid test DO Drive eject fault after timeout 90 seconds Drive host latency Host may have failed to issue a because host did not or could not eject drive eject command media A hardware fault needing service for one of the following possible sources Drive Drive Communications Cable Drive Power Cable Main Circuit Board D1 Drive 1 failed Indicates drive 1 failed during Library Verify 97706346 Plasmon Gx Libraries SCSI Reference Manual 93 D2 Drive 2 failed Indicates drive 2 failed during Library Verify D3 Drive 3 failed Indicates drive 3 failed during Library Verify D4 Drive 4 failed Indicates drive 4 failed during Library Verify 97706346 Plasmon
18. are capable of holding disk cartridges These consist of the import export elements the storage elements the medium transport elements and the data transfer elements The import export element is an externally accessible slots through which disk cartridges are added to or removed from the library system It is also known as the IO station The storage elements ST1 STn are locations within the library system s medium store used to store cartridges The medium transport elements MT1 and MT 2 are the optical disk transport mechanisms used to remove optical disks from or return optical disks to the import export elements the storage elements or the data transfer elements the optical drives The medium transport elements are also referred to as the pickers The data transfer elements DT1 DTn are the library system s optical disk drives The medium changer device within the library system intends to respond to commands as defined by and in accordance with the SCSI 2 ANSI X3 131 1994 standard Each command is structured in the form of a Command Descriptor Block CDB Some commands require an list of parameters to be sent along with the command in the form of a separate outgoing block of data Other commands return a block of information from processing the command into a buffer in the host application software The contents of this buffer may be interpreted by the application at the completion of the command and acted upon according
19. bit 5 Intlck Byte 28 bit 5 reserved 0 No hardware support Unit Note byte renumbering Statistics 20 Log Sense 10 6 2 Byte 46 bit 4 Term Byte 28 bit 4 reserved 0 No hardware support Unit power Note byte renumbering Statistics 21 Log Sense 10 6 2 Byte 46 bit 3 Pivot Byte 28 bit 3 reserved 0 No hardware support Unit cable Note byte renumbering Statistics 22 Log Sense 10 6 2 Byte 46 bit 2 VPSE Byte 28 bit 2 reserved 0 No hardware support Unit Note byte renumbering Statistics 23 Log Sense Supports drive Supports drive disconnect for Unit disconnect for 1 12 1 6 Statistics 24 Log Sense 10 6 2 Byte 49 bit 3 Alt Byte 28 bit 3 reserved 0 No alternate MTA support Statistics 25 Log Sense Byte 49 bit 2 Power Byte 31 bit 2 reserved 0 Max of 2 power supplies Unit Supply 3 Statistics 26 Log Sense 10 6 2 Bytes 100 103 Not supported No magazine support Unit magazine release Statistics count 27 Log Sense 10 6 2 Bytes 104 131 Not supported No alternate MTA support Unit alternate MTA counts Statistics 28 Log Sense 10 6 2 Bytes 132 139 pass Not supported No pass through support Unit through counts Statistics through entries will be replaced 29 Log Sense 10 6 4 See defined format May alter page format while Unsupportable elements Error Log preserving current length such as time and pass 97706346 Plasmon Gx Librar
20. command is not required The Move Medium command instructs the medium changer device to move a unit of media from a source element to a destination element e g move a cartridge from the IO station to slot ST3 The Invert bit may be specified to flip the cartridge prior to depositing the cartridge into the destination element The Exchange Medium command instructs the medium changer device to exchange a cartridge in a source element with a cartridge in a destination element and place that cartridge in another destination element Invert bits may also be specified The Prevent Allow Medium Removal command instructs the medium changer device to either inhibit or permit opening of the IO station for cartridge insertion The Initialize Element Status command causes the medium changer device to test all elements for the presence of media The Read Element Status command is used to determine status of elements e g make a directory of cartridges in the library system The Log Sense command provides a means for reporting medium changer device statistical and error log information The Log Select command provides a means of clearing certain unit statistics error statistics and error log information and setting the library system date and time 97706346 Plasmon Gx Libraries SCSI Reference Manual 14 The Write Buffer command is used to write new firmware to the library system or to change certain parameters within the library system
21. device is to return CHECK CONDITION status and set Request Sense data for all recoverable hardware errors If this bit is set 1 and a recoverable error occurs on a subsequent command then the Request Sense key will be set to RECOVERED ERROR and the ASC and ASCQ fields will be set accordingly LimitRec equals 1 if the medium changer device is to limit the extent of the error recovery that it will perform Setting this bit will prevent the changer from performing any transfers on a cartridge that cannot be moved to a destination element or returned to its original source element Rather than placing the cartridge in its original storage element it will be left in a medium transport element The host software is then responsible for moving the cartridge from the medium transport element Setting this bit also prevents the Rezero Unit command from unloading all drives The default for this bit is 0 ChgrEject equals 1 if the medium changer device is to eject a cartridge from a drive in response to a Move Medium or Exchange Medium command with the drive specified as the Source Element or First Destination Element for an Exchange Medium command If this bit is not set then the host software is responsible for ejecting the cartridge from the optical drive before the Move Medium or Exchange Medium command is issued Setting this bit will also cause the Rezero Unit command to unload all drives before moving the changer device to its home position unless
22. fault only occurs during power up self test Power up self test has detected that the pick flip motor has faulted 7 28 97706346 Plasmon Gx Libraries SCSI Reference Manual 79 04 88 0B Barcode failure during Library Verify test This error only occurs when running the Library Verify test while in Maintenance Mode This is a hardware check error for maintenance support and should not be seen during normal operation of the unit This error indicates that the barcode reader was not able to read ithe test label of the CE cartridge used during Library Verify test na 04 88 06 SCSI failure during Library Verify test This error only occurs when running the Library Verify test while in Maintenance Mode This is a hardware check error for maintenance support and should not be seen during normal operation of the unit The error indicates that SCSI communication failed during some portion of the Library Verify test na 04 88 oD Drive failed R W test during Library Verify test This error only occurs when running the Library Verify test while in Maintenance Mode This is a hardware check error for maintenance support and should not be seen during normal operation of the unit The error indicates that one or more drives failed the R W ortion of the Library Verify test na 04 88 0E Media is inserted into the I O Station but not detected by the library This error on
23. follows O Reseved Page Code 33h Reserved 00h 2 3 MSB Page Length 5DCOh LSB 4 24003 Event List Event List is a list of events from most recent to least recent within the library system 10 5 6 SCSI Event History Page 34h 0 Reserved Page Code 34h Reserved 00h x 3 MSB Page Length 4000h LSB 4 16387 Event List Event List is a list of SCSI time stamped events from most recent to least recent within the library system Please note that a data under run may occur if the event list is not full 10 5 7 DSP Event History Page 35h The DSP Event History Page is as follows 0 __ Reserved 0 Page Code 35h Reserved 00h MSB Page Length 9C40h LSB 4 40003 Event List Event List is a list of DSP commands status from most recent to least recent within the library system Please note that a data under run may occur if the event list is not full 97706346 Plasmon Gx Libraries SCSI Reference Manual 34 10 5 8 NVRAM Contents Page 36h 0 __ Reserved 0 Page Code 36h 2 3 MSB Page Length 4000h LSB Event List is a list of defined NVRAM contents within the library system Please note that a data under run may occur if the event list is not full 10 6 MODE SELECT 6 Command 15h The Mode Select 6 command provides a means for the initiator to select medium changer device parameters O Operation Code 15h PF Page Format e
24. for one of the following possible sources Lift Belt Lift Motor Lift Cable Lift Circuit Board Main Circuit Board Lift Cable 0D Auto Offset sensor immediate A fault where A hardware fault needing service for one of the retries could cause mechanical damage so following possible sources retries are aborted Auto Offset Sensor Picker Interface Circuit Board Lift Circuit Board Main Circuit Board Lift Cable 10 Number of counts specified for a stepper A hardware fault needing service for one of the lexceeds maximum limit following possible sources Pick Flip Belt Pick Flip Motor Pivot Motor Lift Circuit Board Main Circuit Board Lift Cable 97706346 Plasmon Gx Libraries SCSI Reference Manual 88 16 Pick Flip Encoder Error A hardware fault needing service for one of the following possible sources Pick Flip Belt Pick Flip Motor Lift Circuit Board Main Circuit Board Lift Cable 18 19 Stepper motor error Stepper homing error A hardware fault needing service for one of the following possible sources Pick Flip Belt Pick Flip Motor Pivot Motor Lift Circuit Board Main Circuit Board Lift Cable 1A Stepper servoing error A hardware fault needing service for one of the following possible sources Pick Flip Belt Pick Flip Motor Lift Circuit Board Main Circuit Board Lift Cable 1B Picker 1 or 2 Home Sensor failure A hardware fault needing service for one of the foll
25. must each have an SCSI ID between 0 and 7 or between 0 and 15 if Wide SCSI is supported SCSI Initiator A SCSI device such as a host computer that issues SCSI commands SCSI Target An SCSI device that performs an operation requested by an initiator The library system contains several SCSI targets an SCSI medium changer device and one or more SCSI random access storage devices the drives Service Panel The panel behind the front door of the library system through which the library drives may be inserted or removed and the library s printed circuit boards and cables may be accessed Storage Elements STs Locations within the library system used to store disks UDO Ultra Density Optical 97706346 Plasmon Gx Libraries SCSI Reference Manual 10 2 Introduction The Plasmon Gx libraries are a family of optical disk robotic library systems capable of holding a number of disk drives and disk cartridges The primary distinction of the Gx libraries is support of UDO optical media as well as standard MO optical media The robotic device within each library system is referred to as a medium changer device and it uses the protocols and commands for medium changer devices as defined in the American National Standards Institute SCSI Specification The Gx library system s medium changer device and the disk drives within the library system are all accessed independently There are a number of locations or elements within the library system which
26. task and link management messages The following messages are accepted by and or sent by the medium changer device The direction field indicates the direction of message transfer The MESSAGE REJECT message is sent for all unaccepted messages Message Codes Code Message Name Direction 06h 01h Extended messages SYNCHRONOUS DATA TRANSFER In Out Le 01h REQUEST and WIDE DATA TRANSFER REQUEST 03h al 02h SAVE DATA POINTER In Key Target medium changer device to Initiator Out Initiator to Target medium changer device Codes 80h through FFh are used for IDENTIFY messages 7 2 Supported Status Byte Codes A status byte code is sent from the medium changer device to the initiator at the termination of each command The supported status byte code values are listed below Status Byte Codes Status Byte Code Status GOOD Oh CHECK CONDITION BUSY We BUSY te ed RESERVATION CONFLICT All other codes Not Returned GOOD The medium changer device has successfully completed the command 97706346 Plasmon Gx Libraries SCSI Reference Manual 17 CHECK CONDITION Any error exception or abnormal condition resulting in sense data being set causes a CHECK CONDITION status A Request Sense command should be issued following a CHECK CONDITION status to determine the nature of the condition BUSY The medium changer device is busy and cannot accept a command RESERVATION CONFLICT A command has been sent by an init
27. the element is MO 1 if the media in the element is UDO and FFh if the element is empty or the media type is unknown Other values are reserved for future expansion Media Type only differentiates between MO and UDO media It does NOT differentiate between UDO1 and UDO2 media types Note in the data transfer elements the media type indicates O for MO or 1 for UDO regardless of whether the element is empty or full An MO drive will always have an element type of zero a UDO drive will always indicate an element type of one 10 14 2 Storage Element Descriptor sore semeni descriptor as ae ae MSB Element Address Access Except Rsvd 0 T Reserved 0 Reserved 00h ne aa pos Additional Sense Code Qualifier 6 8 Reserved 00h 9 Said Invert Reserved 0 Source Storage Element Address LSB 12 z See Medium Transport Element Descriptor Access equals 1 if element access by the medium transport element is allowed Other fields are the same as for the medium transport element descriptor 97706346 Plasmon Gx Libraries SCSI Reference Manual 57 10 14 3 Import Export Element Descriptor amen element descriptor is as follows AA AS Element Address LSB 2 Reserved InEnab 1 ExEnab 1 Access Except ImpExp Full Reserved 00h Poa Ati SenseCode i O O5 Additional Sense Code Qualifier 6 8 Reserved 00h 9 Said Invert Reserved 0 Source Storage
28. zero the load count of the corresponding drive will be set to zero 10 4 2 Error Statistics Page 31h The Log Select Error Statistics Page is as follows Page Code 31h Reserved 00h Page Length 00h LSB Sending this page will clear all library error statistics information 97706346 Plasmon Gx Libraries SCSI Reference Manual 26 10 4 3 Error Log Page 32h The Log Select Error Log Page is as follows 0 Reserved 0 Page Code 32h E Reserved 00h Page Length 00h LSB Sending this page will clear all library error log information 10 4 4 Task History Page 33h Log a TaskHistory Page is as fions Page Code 33h Reserved 00h MSB Page Length 02h LSB 4 5 Reserved 00h Sending this page will clear all task history information 10 4 5 SCSI Event History 34h en Page Code 34h Reserved 00h MSB Page Length 01h 4 Reserved 00h Sending this page will clear all SCSI event history information 97706346 Plasmon Gx Libraries SCSI Reference Manual 27 10 4 6 DSP Event History Page 35h 0 Reseved Page Code 35h Reserved 00h E MSB Page Length 08h LSB 4 11 Reserved 00h Sending this page will clear all DSP event history information 10 5 LOG SENSE Command 4Dh The Log Sense command provides a means for reporting medium changer device statistical and error log information ARA IE A AA OEA
29. 706346 Plasmon Gx Libraries SCSI Reference Manual 53 The element status data header format is shown following Element Status Data First Element Address Reported Number of Elements Reported LSB Reserved 00h MSB Byte Count of Report Available all pages x 7 Element Status Page s The element status page header format is shown following Memeni Sras Page Heade ti a Code a PVolTag AVolTag 2 3 MSB Element Descriptor ear z 1 LSB AA eed OO ON Reserved 00h MSB Byte Count of Descriptor Data Available this page y 7 Element Descriptor s PVolTag Primary Volume Tag equals if bar code information in the form of SCSI volume tags will be returned Bar code information may also be returned in the condensed format see VolTag field above AVolTag Alternate Volume Tag equals 1 if bar code information in the form of SCSI volume tags will be returned and the Bar Code Type see Section 10 6 2 is such that each side of the cartridge has a unique bar code In this case the Primary Volume Tag contains the bar code corresponding to the side of the media that is oriented up in the slot and the Alternate Volume Tag contains the bar code corresponding to the side of the media that is oriented down in the slot Bar code information may also be returned in the condensed format see VolTag field above The format of the element descriptors follows Descriptors are returned in element addre
30. Additional Sense Code ASC and Additional Sense Code Qualifier indicate detailed information related to a condition of the element The following values are used 83h 09h Unable to read bar code SValid Storage Element Valid equals bit of 1 if Source Storage Element Address and Invert bit are valid Invert equals 1 if the unit of media now in this element was inverted by Move Medium operation since it was last in the Source Storage Element Address There tends to be some confusion at times over this fields meaning so the following description is meant to give some examples to clarify the field The bit literally means exactly what the SCSI standard says in that it indicates whether the media has been flipped inverted since coming from the last Storage Element The last Storage Element is indicated by the Source Storage Element Address field Storage elements are slots bins but not the picker drive or IO station This field does not track the orientation of the media as it is moved around the library One example is if media is brought from the IE to a slot In this case the Svalid field would indicate invalid so the invert field is not valid Then if this media is brought into the picker flipped and returned to the same slot the invert field would indicate inverted and the Svalid field would indicate valid If this media is then moved to a different slot without a flip the invert field would indicate not inverted If this m
31. Byte 0 Operation Code 4Dh Reserved 00h Page Code Reserved 00h a2 MSB Allocation Length LSB 9 Reserved 00h PC Page Control equals 1 indicating those current cumulative values are to be returned Page Code defines the parameter page to be returned A value of 00h 30h 31h 32h 33h 34h or 35h must be used The corresponding page as described below is returned Allocation Length specifies how many bytes of data are to be returned 97706346 Plasmon Gx Libraries SCSI Reference Manual 28 10 5 1 Supported Log Pages Page 00h The Log Sense Supponed Log Pagos Page z as Movs Resemed 0 gt a MSB Page Length ony LSB 3rd Supported Page 31h 5th Supported Page 33h 6 Supported Page 34h 7 Supported el Sn 4 O 5 6 4th Supported Page 32h a 9 10 el ASIS Supported Page 36h 97706346 Plasmon Gx Libraries SCSI Reference Manual 29 10 5 2 Unit Statistics Page 30h The Log Sense Unit Statistics Page is as follows HT Reserved 0 Page Code 30h 1 Reserved 00h 2 3 MSB Page Length 52h LSB 4 6 MSB Library Power On Hours LSB 7 9 MSB Library Swap Count LSB 10 12 MSB Library Recovery Attempts LSB 13 15 MSB Library Recovery Errors LSB 16 18 MSB Drive 1 Load Count LSB 19 21 MSB Drive 2 Load Count LSB 22 24 MSB Drive 3 Load Count LSB 25 27 MSB Drive 4 Load Count LSB 0 0 0 0 0 0 0 29 Rsrvd R
32. D Plasmon The Leader in Professional Data Archival Solutions Plasmon Gx Libraries UDO MO Library System SCSI Reference Manual Revision H Document No 97706346 This publication describes the SCSI software interface to the Plasmon Gx family of ultra density optical and magneto optical disk library systems It is intended to provide interfacing information to parties wishing to develop software and or applications programs for the library system This document for the most part corresponds to Product Revision Level G03a for G10 80 and H04a for G166 G134 174 or later of the library system firmware Information in this document is subject to change without notice and does not represent a commitment on the part of Plasmon Plasmon has a material and substantial proprietary interest in the design of its controller interface and any information or software it may supply The supply of this publication does not convey to the recipient any license under Plasmon patent rights or proprietary designs At the time of release the information in this publication was as accurate and current as possible Plasmon assumes no responsibility for any error which may appear herein beyond that of providing corrected information when errors are brought to its attention Further Plasmon reserves the right to make changes and or improvements in its products and their interface at any time without notice and without incurring any obligation to incorporate
33. Element Address LSB 12 2 See Medium Transport Element Descriptor InEnab Import Enable equals 1 indicating that the import export element supports movement of media into the scope of the medium changer device ExEnab Export Enable equals 1 indicating that the import export element supports movement of media out of the scope of the medium changer device Access equals 1 indicating access to the import export element by the medium transport element is allowed Except equals 1 if the element is in an abnormal state In this case additional information is given in the Additional Sense Code and in the Additional Sense Code Qualifier fields ImpExp equals 1 if the unit of media in the import export element was placed there by an operator or 0 if the unit of media was placed there by the medium transport element Additional Sense Code ASC and Additional Sense Code Qualifier for import export elements may contain the following values Bar code not scanned Unable to read bar code 81h 80h Utility slot exception Other fields are the same as for the medium transport element descriptor 97706346 Plasmon Gx Libraries SCSI Reference Manual 58 10 14 4 Data Transfer Element Descriptor The data transfer element descriptor is as follows PAI IA A A EE Byte LSB Reserved 0 Rsvd 0 Reserved 00h A Reserved 00h S E 4 Additional Sense Code 5 Additional Sense Code Qualifier 6 Rsvd 0 IDValid Re
34. Page 1Dh The Mode Sense Element Address Assignment Page is as follows 0 PSO Rsa _PageCode Dh o S pal TE Length 12h 2 3 MSB First Medium Transport Element Address LSB MSB Number of Medium Transport Elements LSB MSB First Storage Element Address LSB MSB Number of Storage Elements LSB 10 11 MSB First Import Export Element Address LSB 12 13 MSB Number of Import Export Elements LSB 14 15 MSB First Data Transfer Address LSB 16 17 MSB Number of Data Transfer Elements LSB 18 19 Reserved 00h See the tables in Section 6 for the element addresses and counts returned in this page It should be noted that the number of data transfer elements is the maximum number of drives the library type supports Examine the IDValid bit or the ASC ASCO values in the Read Element Status data transfer element descriptors see Section 10 14 4 to determine if specific drives are present and turned on 97706346 Plasmon Gx Libraries SCSI Reference Manual 42 10 8 2 Transport Geometry Parameters Page 1Eh The Mode Sense Transport Geometry Parameters Page is as follows o0 PS 0 Rsvd 0 Page Code 1Eh ETB 1 Parameter Length 04h Member Number in Transport Element Set 00h Where Rotate equals 1 indicating that the medium transport element supports media rotation for handling double sided media 10 8 3 Device Capabilities Page 1Fh The Mode Sense Device Capab
35. Panel Display Mode Page 23b sesssesssssessssessesssesssesessseesseesseessessseresseeessresseesseessees 39 10 7 MODE SELECT 10 Command GSI cies ies sted des cvcsseengesd Sane aea dey goes geavbucnsti ghey iveatcansiwtates avteencess 40 10 8 MODE SENSE 6 Command LADA ado 41 10 8 1 Element Address Assignment Page 1D cuina A 42 10 8 2 Transport Geometry Parameters Page LE oooooconncccnnncccnonccononcccnnncnonnnnnononnnconnncconancnnnnncnnns 43 10 8 3 Device Capabilities Page VPA siciliana 43 10 8 4 Library Mode Parameters Pape 20b nt A 44 10 8 5 Library Special Modes Page 21b wasn S ase u sees ssdaneet Sse dnt eee eee ROS ae 44 10 8 6 Drive Assignments Page 22h ciclos irritada did 46 10 8 7 Front Panel Display Mode Page 231i sca once ocucasetaydiaraadendasnac avedscgd shedededbvceandensdeacsaaeanteleaus 46 10 8 8 Mode Sense Library Four Corners Page 29D cceessecessceceseeeceseeeceeceeceeeeeceseeeceeeeeenteeeees 47 10 9 MODE SENSE 10 Command SAR AA Ree 47 10 10 MOVE MEDIUM Command ASI a 48 10 11 POSITION TO ELEMENT Command 2B cccccssssssececececeesessnsececesceseeesenseaeeeeeesenenes 49 10 12 PREVENT ALLOW MEDIUM REMOVAL Command LED 0 eee eeeeeeeeeceteceeeeneeeeeeeeees 49 10 13 READ BUFFER Command 3Ch cccccccccccsssscececececeesessaecesececsesessasececeeceseeesenseaeeeeeeseeenes 50 10 13 1 Reading the Medium Changer Device SCSI ID ow eee eeseceseceeeeeeseecaeceseeneneesseeeeneees 50 10
36. The Read Buffer command is used to read certain parameters from the library system These commands are modified from the previous G Series generation 97706346 Plasmon Gx Libraries SCSI Reference Manual 15 5 SCSI Addresses The default SCSI IDs for the library system devices are as follows Default SCSI IDs Device SCSI ID Library Drive 1 0 Library Drive 2 1 Library Drive 3 2 Library Drive 4 3 Library 6 6 Element Addresses and Counts The library element address scheme is presented in the following table n depends upon the library model Element Addresses Element Type The following table lists the supported models and associated element counts Element Counts Model Number of Medium Number of Storage Number of Import Number of Data Transport Elements Elements Export Elements Transfer Elements Model 10 Model24 2 Maximum of 2 Model32 2 Maximum of 2 Model72 2 Maximum of Modelgo 2 so Maximum of 2 Modelt34 2 J 1384 Maximum of 4 Model 166 2 060166 Maximumof4 Model 174 2 Z ww __ Maximumof2 97706346 Plasmon Gx Libraries SCSI Reference Manual 16 7 SCSI Communication 7 1 Supported Messages In the course of communication between a SCSI initiator device such as a host computer and a SCSI target device such as the library system medium changer device messages are sent as part of protocol services This includes both
37. Y Command 00h occcccnnnnnconnnnncncnnnannnonanononocnoncnnanononononnononannnnonononccnonnnns 69 10 23 WRITE BUFFER Command BBD erys a N T noonononnn TES 69 10 23 1 Downloads PIO da 70 10 23 2 Changing the Medium Changer Device SCSI ID 00 eee ceseceeeeeeseecnneecnaeceseenseeesaeees 71 10 23 3 Assigning Drive Good Bad Status Codes cescceseeseccesteecoeeeecenseecessenceneescenteceenseees 71 10 23 4 Writing to the Echo Buffer to Test SCSI CommunicatiOM ooonnocononoconononcnnonncnonccnnnnnnncnnnnn ns 71 11 Appendix A Error Codes Recovery amp Subcodes oocoocccnoccccnoncccconcnonnnnccnonacononocononccnnnncnnnnnccnnnnccnnnos 13 11 1 Medium Changer Device SCSI Error Codes cra 13 11 2 Suggested Host Application Error Recovery Actions essesesesesserseesrssressessresressersresreeseesresreesee 84 11 3 Medium Changer Device Sub codes viciosa ii ti dos dd riadas 87 12 Appendix B Host Software Aspects ns uceaqdansseuactavedaceschedeties tuide aadesbeaeedebuoes 95 12 1 AO OA e a e A lade eae A a hades eee 95 12 2 Predecessors to the G SerieSniniienee a BA e A i a e e aa ee 95 12 3 Identifying the Library and Model vola ir 96 12 4 Maintaining am Inventory viii nn LETE ie 97 12 5 Using the Library Moving Cartridaes hindi 98 LAO a E o E E 98 12 7 Drive Temperature and Low Fan Speed Warnings ssesssssessssssessserrsseeesseesseesseresseessseesseesserssee 98 12 8 Mixed Media encantan a s a che leita aneta oiei 99 12
38. age length is 6 only 10 bytes are returned and the least significant digit of the serial number is in byte 9 Peripheral Qualifier and Peripheral Device Type are as in the Standard Inquiry Data Format 10 4 LOG SELECT Command 4Ch The Log Select command provides a means of clearing certain unit statistics error statistics and error log information Operation Code 4Ch Reserved 0 Reserved 0 Reserved 00h Parameter List Length Reserved 00h PCR Parameter Code Reset equals 0 indicating that not all log parameters are to be reset Certain parameters such as the total power on hours count and library cycle count cannot be reset 97706346 Plasmon Gx Libraries SCSI Reference Manual 25 SP Save Parameters equals 1 indicating that all parameter value changes are to be saved in non volatile memory PC Page Control equals 1 indicating that current cumulative values are to be affected Parameter List Length specifies the length in bytes of the Log Select parameters list The Log Select parameter list consists of one or more of the following supported pages 10 4 1 Unit Statistics Page 30h The Log Select Unit Statistics Page is as follows Page Code 30h Reserved 00h Page Length 18h Reserved 00 Drive 1 Load Count Drive 2 Load Count 16 18 MSB Drive 3 Load Count LSB 19 21 MSB Drive 4 Load Count LSB 22 27 Reserved 00 If any of the Drive 1 4 Load Count fields is equal to
39. anel lines support 20 characters In addition to the ASCII characters 20h through 7Dh the following characters are available 80h 8Dh 81h F 8Ch e 85h w 7Eh and 7Fh F and ASh 10 7 MODE SELECT 10 Command 55h The Mode Select 10 command provides a means for the initiator to select medium changer device parameters It performs the same function as the Mode Select 6 command Oo Operation Code 55h ESECIE RO APPO Reserved 0 Reserved 00h 7 8 MSB Parameter List Length LSB 9 Reserved 00h PF Page Format equals 1 indicating that parameters are structured as pages of related parameters SP Save Pages equals 1 if the target is to save changeable parameters in pages Parameter List Length specifies the length in bytes of the Mode Select 10 parameter list The Mode Select 10 parameter list consists of a 8 byte header followed by one or more of the medium changer device s supported pages The header is shown below Mode Select 10 Mode Parameter Header 97706346 Plasmon Gx Libraries SCSI Reference Manual 40 Mode Data Length 00h Medium Type 00h Device Specific Parameter 00h Reserved 00h Block Descriptor Length 00h See the Mode Select 6 command Section 10 6 for information about supported mode pages 10 8 MODE SENSE 6 Command 1Ah The Mode Sense 6 command provides a means for reporting medium changer device to
40. ary Group equals OBh decimal 11 for Gx libraries Internal Cabinet Temperature equals the temperature inside the library system cabinet in degrees Celsius The temperature is expressed as an 8 bit signed byte HRTO1 is a bit that is historically reserved to a value of 1 Model Identification equals a unique code to indicate the model of library system See the Inquiry command Section 10 3 for a table of possible values CanOpen equals 0 indicating that the library does not support IO station opening via the Open Close IO station command CanClose equals 0 indicating that the library does not support IO station closure via the Open Close IO station command NoVTag equals 0 indicating that the library does support volume tags This bit can be used to distinguish this ability of the G Series from other Plasmon libraries which do not support volume tags 10 8 5 Library Special Modes Page 21h zke Mode Sense Library S pecial Medes Page a as ies e Be Page Code 21h Parameter Length 08h LightOff Reserved 0 Reserved 0 NoPwrCyc Reserved 0 6 Rsvd 0 Element Addressing Scheme Bar Code Type Reserved 00h 97706346 Plasmon Gx Libraries SCSI Reference Manual 44 LightOff ScanMd OpnExport NoPwrCyc EnabMslot EnabBCR and Element Addressing Scheme and Bar Code Type are as set by the Mode Select command BCRinstalled indicates whether or not the Barcode Reader is installed in the library A value of one indica
41. at reduced performance 13 Log the medium changer sense Then attempt to reload the drive by issuing a Move Medium command with the drive as the source and destination address If this does not work load the drive and then use the Mode Select command Drive Assignments Page to first power off the drive and then after a few seconds to power on the drive again Wait a few seconds before issuing a Test Unit Ready to the drive to check for ready status An alternative way to power cycle the drive is to use the Mode Select WaitLoad and NoPwrCyc bits in the Library Mode and Special Mode pages to affect drive power cycling If the operation continues to fault log the medium changer sense mark the drive as offline and move the media to another drive to continue processing If the media cannot be removed from the drive then also mark the volume out of operation and fail all subsequent requests for that volume Display a message to call for service 14 Issue the Initialize Element Status and Read Element Status commands to re inventory the drives If the drive is truly full issue the Mode Select command with the Drive Assignments page to cycle power to the drive and then re inventory the drive An alternative method to cycle power to the drive is by using the Mode Select WaitLoad and NoPwrCyc bits in the Library Mode and Special Mode pages to affect drive power cycling If the operation continues to fault log the medium changer sense and mark the drive as of
42. ation by issuing a SCSI Mode Sense Command to t he UDO2 drive while the media is loaded into a UDO2 drive The Density Code byte 0 of the Mode Sense Block Descriptor will be 0 for UDO1 media and 1 for UDO2 media 3 If UDO2 media is loaded into a UDO1 drive media access commands will return an error Incompatible cartridge 0x3 0x30 0x0 The ID hole locations of the cartridge are invalid Process for Managing Mixed Drive and Media The ISV software maintains the drive type in some type of tracking system e g database and establishes verifies each time the system is restarted to insure the drive type has not changed See Establishing Drive Type Media introduced to the library via the mailbox will have its drive generation set by initially loading it into a UDO2 drive The media generation will be stored in a tracking system e g database for future reference when media must be accessed See Establishing Media Generation All UDO1 media that can be written either RW or WORM that is not filled will be loaded into UDO1 drives to accommodate either reading or writing Any UDO1 media which is read only or shred able can be loaded into either UDO1 or UDO2 drives UDO2 media should only be loaded into UDO2 drives The inadvertent insertion of UDO2 media into a UDO1 drive will illicit a drive check condition 0x03 0x30 0x00 Incompatible Cartridge Medium Error The ISV application should as contingency implement a recovery pro
43. braries SCSI Reference Manual 81 05 52 5A 57 Attempt to place MO media in UDO drive IA move or exchange command has been attempted that involves putting media that is typed as MO into a UDO drive 10 05 52 60 60 Attempt to place UDO media in MO drive A move or exchange command has been attempted that involves putting media that is typed as UDO into a MO drive 10 05 53 02 1A Media removal prevented The element has media removal set to prevent This must be cleared prior to removing the media 32 05 80 4A 4A Host specified picker for exchange but both are needed Media is in one or both of the pickers at time when an exchange is requested 33 05 80 55 36 Drive address conflict 34 05 80 AA 4B Position element command RAS error A picker has been specified that precludes a articular move or exchange with a RAS element 35 05 81 03 65 Download checksum error This error is not currently used na 05 86 00 66 Transport element full The MTE specified by the command has media already present 10 06 29 00 OF Power on Reset or Bus Device Reset occurred 39 06 2A 00 10 Log contents changed An indication that a log parameters have changed 41 06 2A 01 11 Mode Parameters changed An indication that mode parameters have changed
44. bration failure A hardware fault needing service for one of the following possible sources 33 Flip calibration failure 35 Alignment calibration failure picker Pick Flip Belt Pick Flip Motor Lift Belt Lift Motor Picker Assembly without Lift Body Picker Interface Circuit Board Lift Circuit Board Main Circuit Board Lift Cable 3D Auto Offset and Pivot sensors are seen in the wrong order Check sector gear teeth at top of lift shaft Check that the picker moves freely up and down on the shaft A hardware fault needing service for one of the following possible sources Sector gear Pivot Home Sensor Picker Assembly with Lift Body 40 I O Station error A hardware fault needing service for one of the following possible sources 97706346 Plasmon Gx Libraries SCSI Reference Manual 90 I O Station Main Circuit Board 42 Picker 1 and 2 Home Sensor error when attempting to retract I O Station Check that the I O Station is in the correct position and not jamming the cartridge A hardware fault needing service for one of the following possible sources Picker Assembly without Lift Body Picker Interface Circuit Board Lift Circuit Board Main Circuit Board Lift Cable 43 I O Home sensor did not change when I O station was retracted A hardware fault needing service for one of the following possible sources 1 O Station Home Sensor 1 O Station
45. cess in case this event occurs It should also be noted that the issuance of a RES Read Element Status command will only return a media type as either UDO or MO i e both UDO1 and UDO2 media are considered UDO type media 97706346 Plasmon Gx Libraries SCSI Reference Manual 112 This page intentionally left blank 97706346 Plasmon Gx Libraries SCSI Reference Manual 113
46. codes set Mode to 2 Buffer ID to 1 Buffer Offset to 0 and Allocation Length to 6 The return data consists of an array of bytes containing a status code for each drive These values are only changed by a corresponding Write Buffer command The returned drive status codes data is shown below Drive Good Bad Status Code Data ETE MAA AAA AA Byte em Drive 1 Status fz AE Drive 2 Status 2 Drive 3 Status Drive 4 Status Drive 1 4 Status is a user defined value to indicate the good bad status of a drive For example a could indicate a good drive while a 2 could indicate a bad drive 10 13 3 Reading from the Echo Buffer to Test SCSI Communication A 256 byte echo buffer is supported to test communication with the medium changer device To read to the echo buffer set Mode to 2 and Buffer ID to 2 Buffer Offset can be any value between 0 and 255 Allocation Length can be any value between 1 and 256 The sum of Buffer Offset and Allocation Length cannot exceed 256 The returned Echo Buffer data is shown below Echo Buffer Data Echo Buffer Data The echo buffer should first be written by the Write Buffer command Section 10 23 4 After the buffer is read its contents should be compared with the data originally written 101 102 103 104 would be represented as the values 101 102 103 and 104 97706346 Plasmon Gx Libraries SCSI Reference Manual 51 10 13 4 Reading the Firmware Flash CRCs To read the Flash CRCs s
47. d note describing that library does not differentiate between UDO1 and UDO2 media only expresses UDO generic type Removed set reserved at 0 fields associated with bytes 19 and 24 in the Request Sense data Corrected Infovalid description to indicate byte 19 instead of 18 Reviewed section 11 rewrote many descriptions Added Gx16 and Gx158 slot maps to section 12 9 97706346 Plasmon Gx Libraries SCSI Reference Manual lil A ls O o Added Appendix D which outlines UDO2 drives for the library 97706346 Plasmon Gx Libraries SCSI Reference Manual CONTENTS Le Glossary of Terms Usd noti 9 P E aE KOE LILO LOS o ii E E 11 Se ibrary System Operating Modes iii A 13 e ENS O A A A 13 3 2 Library Set Up Modesisicin lisina dni rd asocia adn nates 13 3 3 Library Maintenance Mode di ii did cada 13 4 SES Command DS ES 14 Je gt AUS AUTE ti A A A A a ts 16 6 Element Addresses and Col o d 16 Te SCSL COMICO a tn ti een ee 17 Pielke UPPER O A GS 17 12 Supported Stats Byte CodeS ia ia 17 8 Recommended Command Timeouts eseeeesessesesseeeresreestesresressteseestrssteseesersstesesetsstessesersstesseseeesees 18 Do Special SCS States Conds osis e n a Wea Gas a a e N a e a aaea as 18 r N EET e E E A E eee ue teelads 18 92 NO Ready Stale se ia A A tE a A 19 9 3 Unit Attento Condition tail rt 19 10 SCSI Commands espinita a 21 10 1 EXCHANGE MEDIUM Command AG6 D 0 0 ccccccssccecssseccecesssccecessscecceessceecessessace
48. data transfer elements the optical drives The medium transport elements are also referred to as the pickers The data transfer elements DT1 DTn are the library system s optical disk drives 12 2 Predecessors to the G Series The G Series Gx is the fourth generation of Plasmon optical libraries The first generation when Plasmon IDE was known as International Data Engineering was called the Multi series These libraries returned an Inquiry Product Revision Level of 1 nn actually InnA where nn is the revision level and A is a space for release level firmware or a letter for beta firmware The second generation was called the M Series and returned an Inquiry Product Revision Level of 2 nn 2nnA The third generation the G Series returns an Inquiry Product Revision Level of 3 nn 3nnA The Gx generation will return an Inquiry Product Revision Level of the format XYYz as detailed under the Inquiry command description The use of the model identification field in the Inquiry data is recommended for distinguishing generations The Gx family includes a base model with 32 slots and a maximum of 2 drives The next highest model adds a second column to reach 72 80 slots with 1 4 drives A third model 97706346 Plasmon Gx Libraries SCSI Reference Manual 95 will add more capacity to 174 slots and 4 drives All models support both UDO and MO media both alone and mixed There is only one SCSI bus internal to the library 12 3 Identifying th
49. de Select command with the same page to set the SCSI ID of the drive to be powered on to a non conflicting address also non conflicting with the media changer device Retry command specifying the other picker or zero for the available picker to allow positioning correctly to the RAS slot 36 Re download software to library using Write Buffer commands and repeat failing command Note that this will cause a software reboot When using Write Buffer commands to download software make sure that the software packets as defined by the Buffer Offset and Transfer Length fields are contiguous If error persists check the download software image file to make sure of type and correctness 37 Use the Move Media command to move the cartridge out of the MTE If error persists make sure that both pickers are empty and reissue the command specifying zero for the picker element 38 Delay a few seconds and then retry command 39 Determine cause of reset reselect mode parameters not previously saved and resubmit command Note that all reservations and prevents in place are now terminated 40 Log the sense data and check the identify message for correctness Retry the command if appropriate 41 Issue Log Sense if desired to obtain log parameters cleared via front panel or by another host The cleared log will be zero 97706346 Plasmon Gx Libraries SCSI Reference Manual 86 Procedure Descriptio
50. ditions improper cooling or airflow by the library fans or a library hardware problem 04 80 52 3A Cannot load IO station na This error code is currently not used 04 80 54 3B Bad drive type na This error code is currently not used 04 80 5D 42 Library overheat condition 20 97706346 Plasmon Gx Libraries SCSI Reference Manual 76 04 80 5E 43 Drive shutdown due to temperature All drives in the library are powered off The library temperature sensor has reached a critical level This is may be due to environmental conditions improper cooling or airflow by the library fans or a library hardware problem 21 04 80 5F 44 Drive shutdown due to fan failure This error code is currently not used Instead individual fan faults are indicated na 04 80 62 45 Front fan failure The medium changer has sensed that one or more of the fans in the front of the unit is not working The front fans are for cooling the main controller board land the drives 22 04 80 63 46 Rear fan failure The medium changer has sensed that one or more of ithe fans in the rear of the unit is not working The rear fans are for cooling the power supply 22 04 80 64 47 Power supply voltage out of range This fault indicates that the 12V or 24V supply is out lof voltage compliance 43 04 04 04 04 80 80 80 80 65 70 71 82
51. dress LSB 4 5 MSB Source Element Address LSB 6 7 MSB Destination Address LSB Reserved 0 Invert 11 Ignored Reserved 0 Transport Element Address specifies the medium transport element A value of 0 should normally be used This will move the cartridge using the first medium transport element The address of a specific medium transport element may also be used Source Element Address specifies the source element Destination Address specifies the destination element Invert specifies the medium should be inverted If the Invert bit is 1 the media is inverted flipped prior to being deposited into the destination element 97706346 Plasmon Gx Libraries SCSI Reference Manual 48 10 11 POSITION TO ELEMENT Command 2Bh The Position to Element command positions one of the two medium transport elements MTs in front of the specified Destination Element so that no further movement of the MT is necessary to execute a subsequent Move Medium or Exchange Medium command Note that the two medium transport elements are connected so positioning one will also move the other o Operation Code 2Bh Reserved 00h MSB Transport Element Address LSB MSB Destination Element Address LSB BSD Ree ner Po d S Reseed siz Transport Element Address specifies the medium transport element to be positioned A value of 0 should normally be used This will position the first medium transport element in
52. drive Bytes 6 11 not supported Buffer 10 15 status 6 12 2 Read Byte 2 bit 7 6 Byte 2 bit 7 6 Media type Used to distinguish MO Element reserved O from UDO media Status Read Byte 2 bit 7 6 Byte 2 bit 7 6 Media type Used to distinguish MO Element 10 16 reserved 0 from UDO media Status 2 Read Byte 2 bit 7 6 Byte 2 bit 7 6 Media type Used to distinguish MO 97706346 Plasmon Gx Libraries SCSI Reference Manual 109 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 Element Status Read Element Status Read Magazine Status Release Magazine Status Request Sense Request Sense Request Sense Restore Drive Pair Service Drive Pair Swap Transport Assembly Write Buffer Event History Format Error Codes Recovery procedure Internal Error Codes Error Context Codes 3 Byte 6 bit 7 Byte 6 bit 7 reserved 0 Single bus only NotBus 4 10 17 Supported Not supported Supported Not supported No magazine 10 20 Byte 18 bit 1 Byte 18 bit 1 FailUtil Indicates a failure reserved 0 associated with the utility slot Byte 52 53 IO Byte 52 53 reserved 0 No hardware support station or pass through count 10 23 Supported Not supported No hardware support 10 27 a Not supported No hardware support 10 28 e Not supported No hardware support Bytes 6 11 drive Bytes 6 11 not sup
53. e Library and Model All previous Plasmon MO libraries return the same Inquiry response IDE MULTI and so other fields must be used to differentiate the different libraries and library models Usually it is not necessary to know the exact library model but rather the capacities and capabilities of that library model For example application code can be written in a more generic manner if information in the following Mode Sense pages is used by the application Element Address Assignment page 1Dh Transport Geometry Parameters page 1Eh Device Capabilities page 1Fh Library Mode Parameters page 20h Library Special Modes page 21h Drive Assignments page 22h and the Front Panel Display Mode page 23h Additional library information can be found in the Read Element Status data transfer element descriptors for the SCSI IDs of the drives For example the number and addresses of all element types can be found in the Mode Sense Element Address Assignment page In this page the number of data transfer elements is equal to the number of drives installed and powered on The Drive Assignments page must also be examined to determine which drives types are present and what their SCSI Ids are The following table identifies which pages are supported by the various generations of Plasmon optical libraries A Mode Sense command with a page code of 3Fh can be used to determine which Mode Sense pages are available An Inquiry command with a vita
54. e hardware level descriptor where G Gx10 80 libraries reserved letter for firmware releases H Gx134 166 and 174 libraries reserved letter for firmware releases T Engineering test levels of firmware Other letters are currently not defined for this product YY 00 99 major software level This would increment with major content additions z a z minor software level This would increment for minor or incremental firmware releases Model Identification is based on the following table Model Model Identification 33 Model 10 107 Model 16 108 Model 24 100 Model 32 101 Model 72 102 Model 80 103 Model 134 106 Model 158 109 Model 166 104 Model 174 105 97706346 Plasmon Gx Libraries SCSI Reference Manual 24 10 3 1 Supported Vital Product Data Pages Page 00h The Supported Vital Product Data Pages Page is as follows o Peripheral Qualifier 0 Peripheral Device Type 08h 1 Page Code 00h Reserved 00h Page Length 02h 1st Supported Page 00h 5 2nd Supported Page 80h 10 3 2 Unit Serial Number Page 80h me a Seia Number Page is as sohu o Peripheral Qualifier 0 Peripheral Device Type 08h a Page Code 80h Reserved 00h 2 Page Length 14h MSB Product Serial Number Product Serial Number is a twenty character ASCII representation of the library system s factory serial number If the FullSN field is not set to 1 in the Inquiry command then the p
55. e parameters changed via front panel or by another host and then resubmit desired Mode Selection command Retry command 28 Power cycling the unit should be tried prior to calling service If the error repeats then call service 29 30 Examine the Command Block for errors The Sense data identifies offending byte and field If no error is found then retry command If the error persists then issue a Bus Device Reset which will reset the library main controller Clear any subsequent Unit Attentions and then retry the command If fault persists then log the medium changer sense and display a message to call for service Examine Command Block or Identify message for a non zero LUN value If all is found to be correct then retry the command 31 Examine the parameter list for errors The Sense data identifies offending byte and field If all is found to be correct then retry the command 32 Issue Prevent Allow Media Removal to allow media removal Otherwise wait for another host to issue Prevent Allow Media Removal command to allow access to the element Alternatively issue a Bus Device Reset to the medium changer and retry the command 33 Use the Move Media command to move any media from the media transport elements Retry the original command specifying zero for the picker element 34 35 Issue a Mode Sense command with the Drive Assignments page to determine the SCSI IDs of on line drives Then issue the Mo
56. e the reset occurred e All device reservations will be released e All operating Mode Select modes will be restored to default or saved values e The library system will be reset to the IO station states see Prevent Allow Medium Removal command e A Unit Attention condition will be generated Note that the medium changer device will never assert the RST signal 97706346 Plasmon Gx Libraries SCSI Reference Manual 18 9 2 Not Ready State The medium changer device returns CHECK CONDITION status in response to Test Unit Ready command or any cartridge movement commands when it is in a state in which it is unable to process such commands A subsequent Request Sense command issued to the medium changer device yields return data containing a Sense Key of 2h Not Ready The device will remain in such a state for a specified period of time or until an action by an operator takes place The events triggering Not Ready state in the library system are as follows e Upon power up The medium changer device will be Not Ready while drive power is being restored and the library system is initializing e If a drive is turned off because of a drive over temperature or fan under speed condition After an appropriate delay to allow the drives to be unloaded the medium changer device will be Not Ready for 5 seconds before the drives are turned off and placed in the Service state e Selecting Turning Drive Off via the front panel menus The medi
57. e to be changed or 0 if they are to remain unchanged NoPwrCyc equals 1 if the power to the optical drives is not to be cycled as part of a normal drive error recovery procedure Setting this bit to 0 allows error recovery to cycle drive power The SetOptions3 bit must also be set for this bit to be effective The default for this bit is 1 SetOptions4 equals 1 if any of the options in byte 4 are to be changed or 0 if they are to remain unchanged EnabMslot equals 1 if the IO station is to be enabled The default for this bit is 1 EnabBCR equals 1 if the bar code reader is to be enabled The default for this bit is 1 SetAddr equals 1 if the Element Addressing Scheme is to be changed Element Addressing Scheme is set according to the table in Section 6 Note that the SetAddr bit must also be set for this change to be effective SetBCType equals 1 if the bar code type is to be changed or O if it is to remain unchanged Bar Code Type specifies the type of bar code labels used in the library The default for this field is 2 The only barcode label supported by the library is type 2 labels 10 6 3 Drive Assignments Page 22h ue Mode Select Drive Assignments Page is as follows ee 6 E ERES Reserved 0 Page Code 22h Sa Parameter Length OEh Drive 1 On Line 3 Drive 1 SCSI ID 4 Drive 2 On Line 97706346 Plasmon Gx Libraries SCSI Reference Manual 38 SS O Drive 3 On Line Drive 3 SCSI ID Drive 4 On Line Dr
58. echanics need correction before operation can continue 7 28 05 1A 00 07 Parameter list length error This fault indicates that the medium changer detected something incorrect with the Command Block 29 05 20 00 08 Invalid command operation code This fault indicates that the medium changer detected something incorrect with the Command Block 29 05 21 01 09 Invalid element address This fault indicates that the medium changer detected something incorrect with the Command Block 29 05 05 05 05 24 25 26 3B 00 00 00 oD OA 0B 06 13 Invalid field in CDB This fault indicates that the medium changer detected something incorrect with the Command Block Logical Unit not supported Invalid field in parameter list Error indicates that an invalid value was found in the Media destination element full A move or exchange has been attempted that involves a destination element that already has media 29 30 31 10 The medium changer only supports LUN 0 arameter list field 05 3B 0E 14 Media source element empty A move or exchange has been attempted that involves a source element that does not contain media 10 05 3D 00 5A Invalid identify message Fault indicates that invalid bit settings have been found in the identify message fields 40 97706346 Plasmon Gx Li
59. edia is then moved to a drive without a flip the invert field would indicate not inverted If this media is then taken from the drive flipped and put in another slot the invert field would indicate inverted If you then pick this piece of media into the picker and then put it back in the same slot without a flip the invert field would change to not inverted These examples do not cover all cases but hopefully give a better idea of how this field works Source Storage Element Address provides the address of the last storage element this unit of media was moved from SideIdent equals 1 if the cartridge side for which the bar code applies has been identified side unique bar codes or O if the bar code applies to both sides of the cartridge SideB equals 1 if the bar code applies to cartridge side B rather than cartridge side A BCValid Bar Code Valid equals 1 if Bar Code is valid i e if a valid bar code was read BCScand Bar Code Scanned equals 1 if the bar code was scanned i e if an attempt was made to read it 97706346 Plasmon Gx Libraries SCSI Reference Manual 56 Bar Code Length equals the length of the following bar code The default for this length 1s 20 Bar Code contains the bar code of the cartridge if it is known The bar code will be returned as ASCII characters followed by spaces if a valid bar code was read Zeros will be returned if the bar code was not scanned or is not valid MediaType equals 0 if the media in
60. equest Sense command in the SCSI manual for a description of the Sense Key values Errors listed here with a Sense Key of 04h hardware error may also be returned with a Sense Key of Olh recovered error This indicates that the command was successful although the library did have some difficulty in completing the command Recovered errors indicate a possible problem with the library Recommendations for recovery for a given error are found in the last column when applicable When multiple recoveries are listed follow the specified order i e recovery 1 followed by recovery 14 if recovery 1 is not successful The following section details these recovery methods Note that the Error Type as seen on the front panel is also provided in the Log Sense error logs Not all errors have host recovery procedures It should be noted that the library system attempts extensive error recovery on its own and many cases has already done some of the suggested recovery items Error codes returned by optical drives within the library system are not listed see the appropriate drive manuals for a description of these errors Sense Sense Qualifier Error Error Description Host Key Code Type Corrective Action 00 00 00 00 No Additional Sense 1 No sense information describing an error is relevant A Request Sense command was sent when no error was outstanding 01 80 00 2E Recovered error 2 The previous move command encountered an event fr
61. et Mode to 2 Buffer ID to 3 Buffer Offset to O and Allocation Length to 8 The returned data contains the Calculated CRC and the Expected CRC stored at the end of each Flash Bank for the two banks of firmware as shown below Firmware Flash CRCs Ea MEE A PE EA E A AR Byte OA Bank Calculated CRC MSBO Bank1 Expected CRC LSB Note e Fora given Bank if the Calculated CRC and the Expected CRC are the same then this Bank is deemed to contain valid firmware e Iftwo Banks contain the same CRCs then they contain the same firmware 10 14 READ ELEMENT STATUS Command B8h The Read Element Status command requests that the medium changer device report the status of its internal elements to the initiator NETA Operation Code B8h Reserved 0 VolTag Element Type Code 2 3 MSB Starting Element Address LSB 4 5 MSB Number of Elements LSB Reserved 0 Rsvd 0 7 9 MSB Allocation Length 10 Reserved 00h 11 Rsvd 0 BarCodes Reserved 0 VolTag equals 1 if the medium changer device is to return bar code information in the form of SCSI volume tags or O if bar codes are to be returned in the condensed format described in this document Not all media changer models support bar codes LSB 97706346 Plasmon Gx Libraries SCSI Reference Manual 52 Element Type Code specifies an element type to be returned as follows Element Types Returned 0 Allelementtypes Medium transport elements S
62. f the failure occurred on the second move of an Exchange Medium command from the First Destination Element to the Second Destination Element or 0 if the failure occurred on the first move from the Source Element to the First Destination Element The second move is actually executed first FailUtil equals 1 if the failure occurred on the after moving to a temporary utility location and before moving to the destination location This is done to accommodate flipping for access to certain slots InfoValid equals 1 if bytes 19 to 23 contain valid information about the last cartridge movement command or the first move of an Exchange Medium command Source to First Destination Element Info2 Valid equals 1 if bytes 24 to 28 contain valid information about the second move of an Exchange Medium command First Destination Element to Second Destination Element First Source Element and First Destination Element are the addresses of Source and Destination Elements of the last cartridge movement command or the Source and First Destination Elements of the last Exchange Medium command Second Source Element and Second Destination Element are the addresses of First and Second Destination Elements of the last Exchange Medium command Error Subcode is a code that provides additional information as to the cause of a fault Error Type indicates the front panel error code Error Context is the operation code of the SCSI command that had the error Medium T
63. fied In this case however the second destination element may not be the same as the source element and the Import Export element may not be involved in the exchange Source Element Address specifies the source element First Destination Address and Second Destination Address specify the two destination elements The first is the destination of the cartridge originally in the Source Element Address The second is the destination of the cartridge originally in the First Destination Address Inv1 and Inv2 specify the medium should be inverted flipped prior to being deposited in First Destination Address and Second Destination Address respectively 97706346 Plasmon Gx Libraries SCSI Reference Manual 21 10 2 INITIALIZE ELEMENT STATUS Command 07h The Initialize Element Status command is used to cause the medium changer to test elements for the presence of media The status of each element can then be read using the Read Element Status command o Operation Code 07h Reserved 00h TypeSel Reserved 0 TypeSel selects the types of elements to test according to the following tables The ScanMd bit set in the Library Special Modes page 21h determines whether slow or fast mode is used See Mode Select page 21h for how ScanMd is set The default for ScanMd is 0 If a barcode reader is present and enabled the barcode labels will be read for the specified elements Action ScanMd 0 Slow 0 Testall elements Verify med
64. fline Also mark the volume out of operation and fail all subsequent requests for that volume Display a message to call for service 15 No recovery action can be performed A permanent hardware failure has occurred Log the medium changer sense data mark the medium changer failed and display a message to call for service NOTE The power on the medium changer should be cycled just to make sure that the event is not spurious This requires manual intervention If the fault persists call for service 16 Log the medium changer sense Then issue a Rezero Unit command with the RecalOffs bit 1 to cause the medium changer to recalibrate Retry the original command If the unit continues to fault log the medium changer sense mark the medium changer failed and display a message to call for service 17 Display a message to make sure media is present in the IO station if appropriate 18 Log the medium changer sense and retry the command Retry the original command If the error is persistent then display a message indicating that a hardware failure has occurred and to call for service If a decision can be made that barcode label information is not necessary for satisfactory operation to continue then the barcode reader can be disabled using the EnabBCR bit of the Library Special Modes page and operation continued till service is able to repair the barcode reader function NOTE The power on the medium changer should be cycled just
65. front the destination element specified The address of a specific medium transport element may also be used Destination Address specifies the destination element to position in front of Invert equals 1 if the medium transport element is to be inverted flipped before it is positioned at the destination element 10 12 PREVENT ALLOW MEDIUM REMOVAL Command 1Eh The Prevent Allow Medium Removal command instructs the medium changer device to either prevent or allow the removal of media cartridges from the library system depending upon the value of the Prevent bit If the Prevent bit equals 1 cartridge removal is prevented If the Prevent bit is 0 cartridge removal is allowed Operation Code 1Eh Reserved 00h Reserved 0 Reserved 0 Prevent equals 1 if movement of media to the IO station is prohibited or O If movement of media to the IO station is allowed 97706346 Plasmon Gx Libraries SCSI Reference Manual 49 The Prevent states remain effective until one of the following conditions occurs 1 All initiators which have issued the Prevent Allow Medium Removal command with Prevent set to 1 reissue the command with Prevent set to 0 when applied to the same device and IO station The medium changer device receives a TARGET RESET message The medium changer device receives a hard reset or power is cycled 4 The medium changer device completes download of new firmware or the SCSI ID of the medium changer dev
66. g an Initialize Element Status command a utility slot was found to have media This media is automatically exported to the lO station 04 80 99 4D Flash CPLD program fail na This error code is currently not used 04 80 9B 49 Front panel display not available 45 The op panel is in use by the medium changer when la display request was made by the host 04 80 9C 37 Vertical path block 44 7 At power up it was found that the lift is blocked This could be the lift lock engaged a piece of media not fully in a slot or other mechanical issues 04 80 FE 58 Internal Overlapped Command 38 Indicates a command was received and a previous command was still in the process of being executed 04 80 FF 69 SYSTEM SW ERROR 9 Always last entry for error checking and can be a number of possibilities 04 88 01 64 Auto Offset Sensor Failure 7 28 This fault only occurs during power up self test The Auto Offset Sensor has faulted 97706346 Plasmon Gx Libraries SCSI Reference Manual 78 04 88 02 41 Picker level error This fault only occurs during power up self test It has been detected that the picker has too much tilt 7 28 04 88 03 3F Flip Sensor Failure This fault only occurs during power up self test It has been detected that the flip sensor has a fault 7 28 04 88 04 1E Pick Flip motor stalled error This fault only occurs during power up self test It has been detec
67. he inquiry model table Reformatted section 11 0 to be like the service manual common Corrected blank items in the recommended recovery table Added Gx134 to section 12 9 along with changing Gx174 map Corrected table on models to show the G134 Midrange G Made some clarifications regarding SCSI 2 Added the Gx10 into section 6 0 Element Addresses and Counts Added Gx10 to G firmware for product revision level Added model id 107 to the inquiry model table for the Gx10 Clarifications to front rear fan and power supply bits renamed Correction to Unit Statistics page length Ox4E changed to 0x52 Added description to 10 8 8 to reference left and right Added new option to Read Buffer 10 13 to read Flash CRC data Changed Error Subcode Type and Context location in Sense data Updated Appendix A Error codes to be consistent with all docs Added error code 0x28 04 80 4A Added error codes 0x15 04 80 AE and 0x16 04 88 88 Added more information and clarification to the OB 83 00 warning Added the Gx10 map section 12 9 Corrected table on models to show the Gx10 Midrange H Added specified time to respond to inquiry after power up Added description in section 10 2 about Gx80 and Gx174 IES differences i e the usage of the picker cal feature during media presence sensing Added Gx16 and Gx158 models to the model identification table Added 6 drives to section 10 8 6 for model 158 Also added UDO2 drive type values Adde
68. heir UDO1 media when they upgrade to UDO2 drives Hence supporting a mixed drive environment where UDO1 media can be written by UDO1 drives is desirable Once all UDO1 media is filled a decision can be made to switch all drives to UDO2 14 2 Suggested Implementation When UDO2 drives are introduced the Gx libraries will accept UDO2 drives UDO1 and UDO2 media must be loaded into drives to detect whether it is UDO1 or UDO2 media Once established it is recommended that the ISV software maintain information on the drive types and media types for future use Then based on the above UDO Media and Drive Compatibility Table the appropriate drive can be selected to provide the appropriate functionality required for the Media generation The following is the recommended processes for managing a mixed UDO1 and UDO2 drive and media environment Establishing Drive Type UDO1 or UDO2 1 Detect the drive type of each drive by issuing a SCSI Mode Sense Command Drive Assignment Page 22h to the library The drive type field for each drive will report UDO1 or UDO2 A drive type value of Ox1E will indicate UDO1 and a drive type value of 0x3C will indicate UDO2 97706346 Plasmon Gx Libraries SCSI Reference Manual 111 Establishing Media Generation UDO1 or UDO2 1 All media introduced to the system with an unknown media generation should be placed in an available UDO2 drive to establish whether it is UDO1 or UDO2 media 2 Detect the media gener
69. his mode of operation for each medium changer model allows the unit to continue to operate with only added time for the IES to complete NOTE In SCSI specification section 10 2 the usage of the ScanMd bit is described This bit is primarily for making the IES command more efficient 1f the medium changer is not used in a mixed media environment Usage of this bit does not change the special cases as described above 97706346 Plasmon Gx Libraries SCSI Reference Manual 22 10 3 INQUIRY Command 12h The Inquiry command is issued by the initiator to request medium changer device information o Operation Code 12h Reserved 0 EVPD EVPD Enable Vital Product Data equals 1 if the vital product data page as specified by the Page Code field is to be returned or zero if standard Inquiry data is to be returned Page Code defines the parameter page for vital product to be returned A value of 00h or 80h must be used These pages are described following the standard Inquiry data format Allocation Length specifies how many bytes of data are to be returned FullSN equals 1 to return a full serial number in the Unit Serial Number page The following section details the standard Inquiry Data Format for an Allocation Length of 45 Standard INQUIRY Data Format Bit 7 5 4 3 2 1 ASA O PerpheralQualifier 0 Peripheral Device Type 08h Device Type Qualifier 0 Response Data Format 2 Additional Length 28h Reserved 00h Reserved 0
70. hose cartridges If the cabinet continues to overheat or the fan speeds drops further a drive shutdown Unit Attention condition will be generated After 90 seconds the drives will automatically be powered down At this point the drives are disconnected from the SCSI bus and a second Unit Attention condition will be generated indicating that drives have been placed 97706346 Plasmon Gx Libraries SCSI Reference Manual 98 in the power down state The drives will have to be powered on via the front panel 1f required The current state of any drive can be obtained by issuing a Read Element Status using the drive element address The Additional Sense Code and Additional Sense Code Qualifier fields in the data transfer element descriptor identify the current normal warning or shutdown state of the drive These fields should be examined in every data transfer element descriptor after being notified of any drive related Unit Attention condition 12 8 Mixed Media The library is capable of handling mixed media of both MO and UDO There are some aspects of this that the host needs to be aware of Media type detection is done in the picker This necessitates that the media be drawn into the picker for an initial identification This is accomplished when the media is brought in via the IO station and so can be transparent for the most part to the host Since there is not a door and media can only enter the library via the media slot scanning for the media
71. ia type by picking 1 Test all elements except data transfer elements drives Verify media type by picking Test all elements except storage elements slots 3 Test all elements Do not verify media type Action ScanMd 1 Fast Test all elements Do not verify media type o0 gt Test all elements except data transfer elements drives Do not verify media type 3 Test all elements except storage elements slots Test all elements Verify media type by picking Note that the status of the drives may not be checked if both medium transport elements are full The IES Initialize Element Status command behaves differently between the Gx80 and the Gx174 models for a particular special case This case is when the storage elements of each are sensed to be completely empty i e no media For the Gx80 storage element empty case an IES will take more time to complete as the medium changer will pick verify every slot to ensure that there is no media This is a check on the media scan sensor for validity For the Gx174 empty storage element case there is a picker calibration feature that can be sensed by the media scan sensor This verifies validity of the media scan sensor This precludes the need to pick check all of the storage slots for the good media scan sensor case If the Gx174 fails to detect the picker calibration feature the sensor is broken during media scan the unit will pick check each storage slot T
72. iator to the medium changer device when it is already reserved by another initiator 8 Recommended Command Timeouts The following values are the recommended timeout values for host software to use when issuing commands the medium changer device The actual command execution times depend upon the various mode settings in effect see Section 10 6 1 the type of drives used concurrent front panel operations and the number of retries performed to successfully complete a command Suggested Timeout Values SCSI Command Inquiry Mode Select Mode Sense Prevent Allow Medium Removal 10 sec Request Sense Reserve Element Release Element Read Element Status Test Unit Ready Log Select Log Sense Write Buffer mode 2 Read Buffer Time from power up to responding to normal initialization commands 5 min such as Inquiry and Mode Sense Send Diagnostic Position to Element Move Medium Exchange 10 min Medium Rezero Unit Write Buffer mode 7 15 min Initialize Element Status bar code reader enabled 9 Special SCSI States Conditions 9 1 Reset State When the RST signal is asserted or a TARGET RESET message is received from the host the medium changer device within the library system enters the RESET state As a result the following events will take place e All SCSI bus signals except RST will be released e All I O processes commands will be terminated The library system will be restored to the state it was in befor
73. ice Manuals 3 3 Library Maintenance Mode This mode may only be invoked from the front panel It takes the medium changer device completely off line for SCSI service requests For more information refer to the Gx Libraries User Guide and Service Manuals 97706346 Plasmon Gx Libraries SCSI Reference Manual 13 4 SCSI Command Overview The following is a brief description of each of the SCSI commands supported The Inquiry command requests medium changer device parameters be sent to the SCSI initiator device The Mode Select 6 and Mode Select 10 commands provide a means of selecting medium changer device parameters The Mode Sense 6 and Mode Sense 10 commands provide a means for reporting medium changer device parameters to the initiator The Send Diagnostic command provides a means for performing diagnostic tests on the medium changer device The Rezero Unit command is used to reset the medium changer device The Test Unit Ready and Request Sense commands are necessary to interface the medium changer device The Reserve Element and Release Element commands are used to reserve the medium changer device or elements within it for multiple initiator applications Many implementations will not require these commands The Position to Element command instructs the medium changer device to position one of the two medium transport elements MTs in front of an element in preparation for a move from the element Use of this
74. ice is changed by the Write Buffer command see Section 10 23 2 29 10 13 READ BUFFER Command 3Ch The Read Buffer command is used to read the current SCSI ID of the medium changer device to read a good bad status code for each drive or to read a buffer to test the integrity of communication with the medium changer device via the SCSI bus Operation Code 3Ch eg a Buffer ID Buffer Offset LSB Allocation Length LSB Mode Function Of Bytes Returned 2 Read SCSI ID of medium changer device 1 2 Read drive status code 6 2 Read from echo buffer to test SCSI data 256 transfer 2 Read Flash CRCs 8 Buffer Offset is the beginning byte offset within the designated buffer from which data is to be returned For buffer ID 0 and ID 1 the buffer offset must equal 0 Allocation Length specifies how many bytes of data are to be returned 10 13 1 Reading the Medium Changer Device SCSI ID To read the SCSI ID of the medium changer device set Mode to 2 Buffer ID to 0 Buffer Offset to 0 and Allocation Length to 1 The return data consists of a single byte containing the current SCSI ID of the medium changer device 97706346 Plasmon Gx Libraries SCSI Reference Manual 50 The returned medium changer device SCSI ID data is shown below Medium Changer Device SCSI ID Data Current Medium Changer Device SCSI ID 10 13 2 Reading the Drive Good Bad Status Codes To read the drive status
75. ies SCSI Reference Manual 106 30 31 32 33 34 35 36 37 38 39 40 Log Sense Event History Log Sense Micro ops Log Sense Library Time Mode Select Library Mode Parameter Mode Select Library Mode Parameter Mode Select Library Mode Parameter Mode Select Library Mode Parameter Mode Select Library Mode Parameter Mode Select Library Mode Parameter Front Panel LEDs Mode Select Library Special NA Supports micro ops page Supports time page Byte 3 bit 4 Set drive 1 6 Byte 3 bit 3 drive loaded Byte 3 bit 2 0 drive number Byte 4 bit 7 set number of buses Byte 4 bit 4 Set drive 6 12 Byte 4 bit 2 0 number of buses Indicates SCSI or motor activity Byte 2 bit 1 No scan ST May alter page format while preserving current length Not supported Byte 3 bit 4 Ignored Byte 3 bit 3 Ignored Byte 3 bit 2 0 Ignored Byte 4 bit 7 reserved 0 Byte 4 bit 4 reserved 0 Byte 4 bit 2 0 reserved 0 One LED indicates online offline and the other indicates library activity Byte 2 bit 1 reserved 0 97706346 Plasmon Gx Libraries SCSI Reference Manual Unsupportable elements such as time and pass through entries will be replaced Not supported in hardware Redundant See description Redundant See description Redundant See description Single bus suppor
76. ilities Page is as follows o PSO Rsvd PageCode ifw pee I Parameter Length 12h 2 Reseved StorD 1 Stori t StorS 1 Stormo Reserved 00h 6 Fesewed FGA 100 1 gt S d 1 gt M1 D gt D 1 Reserved 0 Reserved 00h Where D is a data transfer element I is the Import Export Element S is a storage element M is the medium transport element Stor indicates storage capability gt indicates Move Medium capability first element type is for Source second element type is for Destination o indicates Exchange Medium capability first element type is for Source and Second Destination second element type is for First Destination and the available capabilities are as indicated 1 means yes in all cases and O means no in at least some cases 97706346 Plasmon Gx Libraries SCSI Reference Manual 43 10 8 4 Library Mode Parameters Page 20h ue Mode Sense Librar ote Parameter Page as ee oO Psa Rsvd PageCode 20h Cd pa fo Parameter Length 08h o repaso Rsvp rires Org Reve Waiload Fod Pak EA Library Group ved O Reserved 0 p 4 Resewed Q NumberofBuses t 6 _Reserved __ HRTO1_ _DASDInq FVerOnWr WrCaEnab Model Identification ae ee ee DT O ee Event History Type lower byte ReportRec LimitRec ChgrEject WaitLoad Park Number of Buses DASDInq FVerOnWr WrCaEnab and Event History Type are as set by the Mode Select command Libr
77. isible to other initiators Parameter List Length equals 0 97706346 Plasmon Gx Libraries SCSI Reference Manual 67 The Send Diagnostic command returns status of GOOD if no errors occur else a CHECK CONDITION will be set Send a Request Sense command to obtain information about the problem 10 21 SEND VOLUME TAG Command B6h The Send Volume Tag command transfers a template to be used to search for cartridges with specific bar codes volume tags Only this template matching translate function of the Send Volume Tag command is supported The Request Volume Element Address command is used to transfer the results of the template matching operation Operation Code B6h 0 a a Reserved 0 Element Type Code Element Address 3 2 3 Reserved 00h Reserved 0 Send Action Code Reserved 00h MSB Parameter List Length LSB Reserved 00h Element Types Returned 4 Data transfer elements Send Action Code specifies the function to be performed by the command as shown below Code Function 00h or 04h Translate search all defined side A and side B bar codes of the specified element types 01h or 05h Translate search only primary side A bar codes of the specified element types 02h or 06h Translate search only alternate side B bar codes of the specified element types 03h 07h 1Fh Reserved The specified elements are searched for a matching volume iden
78. ite to a buffer to test communication with the medium changer device via the SCSI bus Buffer Offset Parameter List Length Reserved 00h Mode and Buffer ID select the function to be performed based on the following table 97706346 Plasmon Gx Libraries SCSI Reference Manual 69 Mode Buffer ID Function Of Bytes fewer Expected 0 Download firmware microcode 258 0 Change SCSI ID of medium changer device 1 1 Assign drive status codes 6 2 2 Write to echo buffer to test SCSI data transfer 256 Buffer Offset is the beginning byte offset within the designated buffer to which data is to be written For buffer ID 0 and ID 1 the buffer offset must be equal to 0 For buffer ID 2 if the buffer offset and parameter list length fields specify a transfer that would exceed the buffer capacity a CHECK CONDITION return status is issued and the sense key is set to ILLEGAL REQUEST with an additional sense code of INVALID FIELD IN CDB Parameter List Length specifies the length in bytes of the accompanying parameter list 10 23 1 Downloading Firmware To write new firmware to the library system set Mode to 7 and Buffer ID to 0 The Buffer Offset begins at 0 The Parameter List Length must always be 258 since data is transferred in blocks of 256 bytes with an appended 2 byte checksum Multiple commands are sent to complete a download The Buffer Offset for each command is incremented by 258 from the previous c
79. ive 4 SCSI ID Reserved 00h 11 Reserved 00h 13 Reserved 00h 14 15 14 15 Reserved 00h Drive 1 4 On Line are the on line designators for the drives in the library system If set to zero the corresponding drive will be powered off and considered off line If set to a non zero value the corresponding drive will be powered on and considered on line This provides a means of taking mal functioning drives off line and reinstating them to on line status if so desired Any attempt to position to an off line drive will be considered an error Drive 1 4 SCSI ID are the SCSI IDs of the optical drives in the library system Changing these values changes the address of the drives on the SCSI bus on which they are located The drives corresponding to the altered SCSI IDs will be automatically powered off and back up again to effect the change of address SCSI IDs should be unique for drives on the same SCSI bus The SCSI ID field is only used if the drive is on line powered on 10 6 4 Front Panel Display Mode Page 23h Ie Mode Front Panel Dis Mode Pag ge is as ie Parameter Length o 22 ERA SEO second Power Otis E ASEO FOTOS DeVore Line 3 Display lt 4 oi Rsrvd 0 Rsvd 0 Section2 Reserved 0 44 63 Line 1 Display Text 64 83 Line 2 Display Text LightOff equals 1 if the front panel ACTIVE light is to be left in the off state for system heart beat while the DispMode bit is set This is useful for elemen
80. l product data page code of 00h can be used to determine which Inquiry vital product data pages are available Library and Model Mode Sense Pages Supported Inquiry Vital Product Data Pages Supported Multi all 1Dh 1Eh 1Fh 20h 21h 22h 23h PARA AA YAA M Series M20 M258 1Dh 1Eh 1Fh 20h 21h 22h 23h M Series M500 1Dh 1Eh 1Fh 20h 21h 22h 23h 24h G Series all 1Dh 1Eh 1Fh 20h 21h 22h 23h 24h G Series Gx 1Dh 1Eh 1Fh 20h 21h 22h 23h If it is necessary to know the library and model this can be determined by examining byte 44 in the standard Inquiry return data or by examining byte 3 bits 4 7 and byte 7 of the Mode Sense Library Mode Parameters page 20h This information is summarized in the following table 97706346 Plasmon Gx Libraries SCSI Reference Manual 96 Library and Model Inquiry byte 44 Mode Sense Library Mode Parameters page Byte 3 bits 4 7 Byte 7 MidRange G10 MidRange G24 MidRange G32 MidRange G72 MidRange G80 MidRange G166 MidRange G174 MidRange G134 12 4 Maintaining an Inventory The medium changer device in the library maintains an inventory of cartridges in the library in its non volatile memory but has no knowledge of the contents of the cartridges For this reason the host initiator device may wish to maintain its own inventory of library cartridges To synchronize these two inventories 1t may be necessary for the host to issue an Initialize Element Status command foll
81. ly This document does not specify how this information is to be used by the application This document describes the SCSI commands CDBs for the library system s medium changer device Refer to the corresponding drive reference manual for information on SCSI commands for the library system s optical drives SCSI reference manuals for the library system s optical drives may be obtaining by contacting Plasmon Technical Support 97706346 Plasmon Gx Libraries SCSI Reference Manual 11 The aforementioned SCSI standard may be obtained by contacting ANSI at the following address American National Standards Institute Inc 11 West 42nd Street New York NY 10036 1 212 642 4900 Internet www ansi com 97706346 Plasmon Gx Libraries SCSI Reference Manual 12 3 Library System Operating Modes The library system can operate in one of three modes on line library set up and library maintenance 3 1 Normal On line This is the normal operating mode of the library system Element statuses are displayed on the front panel of the library system A menu may be selected for accessing mail slot displaying library status values and entering one of the other two operating modes of the library 3 2 Library Set Up Mode This mode may only be invoked from the front panel It takes the medium changer device completely off line the drives remain on line for SCSI service requests For more information refer to the Gx Libraries User Guide and Serv
82. ly occurs when running the Library Verify test while in Maintenance Mode This is a hardware check error for maintenance support and should not be seen during normal operation of the unit The error indicates that a sensor issue exists with the I O station na 04 88 OF 0E Drive is not UDO This error only occurs at initial power up of the medium changer The error indicates that a drive type was found to be something other than UDO in a medium changer that expects only UDO drives 28 04 88 10 3E Drive communication This error only occurs at initial power up The error indicates that an expected drive is not responding in the medium changer The drive interface cable may be at fault or the drive may simply not be installed 97706346 Plasmon Gx Libraries SCSI Reference Manual 28 80 04 88 11 Scan Media Sensor Failure This error only occurs when running the Library Verify test while in Maintenance Mode This is a hardware check error for maintenance support and should not be seen during normal operation of the unit The error indicates that the scan sensor is not working properly na 04 88 88 16 Incorrect alignment of lift cal and pivot home sensor This fault can occur at power up or during a rezero operation The mechanics relating to pivot calibration are off such that the lift cal sensors breaks before the pivot home sensor The MTE lift m
83. may be used to recover the results of a single Send Volume Tag command Operation Code B5h O EA er VolTag Element Type Code 2 3 MSB Element Address LSB MSB Number of Elements LSB 6 Reserved 00h 7 9 MSB Allocation Length LSB 10 11 Reserved 00h For each Send Volume Tag command the medium changer device will report in element address order multiple elements that match a volume tag template Once information for a given element address has been reported only higher element addresses will be reported by subsequent Request Volume Element Address commands VolTag equals 1 if the medium changer device is to report bar code information in the form of volume tags or 0 if the bar code information in the form of volume tags is not to be reported Element Type Code specifies an element type to be returned as follows Element Types Returned O Allelement types Medium transport elements Storage elements Import export elements Data transfer elements A Element Address specifies the minimum element address to report Only elements with an element type permitted by the Element Type Code and the Element Address are reported Number of Elements specifies the maximum number of element descriptor tags to be reported by the medium changer device for this command The value specified by this field is not the range of element addresses to be considered for reporting but rather the number of elements to
84. ment list consists of zero or more of the following reserve element list descriptors 10 18 1 Reserve Element List Descriptor me Reserve Femen List 2a is as ae Reserved 00h Number of Elements Element Address Element Address is the beginning element address to start assigning reservations for Number of Elements is the number of elements to reserve or zero if elements are to be assigned beginning at the specified element address through the last element address on the unit 10 19 REZERO UNIT Command 01h The Rezero Unit command reinitializes the medium changer device The command first unloads the medium transport elements Then depending upon the ChgrEjects and LmtErrRec bits in the Mode Select Vendor Unique Mode Parameter Page see Section 10 6 1 cartridges in data transfer elements optical drives may be unloaded If a cartridge in a data transfer element is to be unloaded the changer first attempts to place the cartridge into the storage element where it originally came from If the source storage 97706346 Plasmon Gx Libraries SCSI Reference Manual 66 element is full the changer will place the cartridge in the first available slot If no slots are available for some reason the changer will report SCSI sense code 04 80 1E which indicates element unexpectedly full If the unit is parked no SCSI motion commands may be executed until the unit is power cycled These commands include move medium exchange medium po
85. mented SetDrOpt equals 1 if any of the drive options in byte 6 are to be changed or 0 if they are to remain unchanged DASDInq equals a bit of one if all library system drives are to identify themselves as Direct Access Storage Devices hard drives in response to an Inquiry command or a bit of zero if they are to identify themselves as optical drives Some operating systems such as UNIX may require that the drives identify themselves as DASD devices The default for this bit is zero FVerOnWr For MO drives only Ignored for UDO Equals 1 if Force Verify on Write line on all library system drives is to be made active or O if it is to be made inactive Note that all drives will have be powered off and then back up before any changes to this option take effect This can be done by turning the library off and on again or via the Mode Select Drive Assignments Page see Section 10 6 3 The default for this bit is 1 WrCaEnab For MO drives only Ignored for UDO Equals 1 if Write Cache Enable line on all library system drives is to be made active or O if it is to be made inactive Note that all drives will have be powered off and then back up before any changes to this option take effect This can be done by turning the library off and on again or via the Mode Select Drive Assignments Page see Section 10 6 3 The default for this bit is 0 SetType equals 1 if the Event History Type is to be set or 0 if it is to remain unchanged Event History Type bit
86. mon Gx Libraries SCSI Reference Manual 158 Mailslot Utility Slot Utility Slot 1 2 3 174 Drive 2 Drive 1 Gx174 2 Drive Slot Map 104 13 Appendix C Gx G Enterprise and G SCSI Differences Diff Difference area Sect Standard G series SCSI specification section number Diff Sect G Series MidRange Notes 1 SCSIbus 5 Supports up to 3 Supports only one LVD bus SE to LVD bus segments LVD buses will be used for MO drives HVD support will also be supported address Supports 1 4 Supports only 1 amp 4 schemes 3 Element Supports Supports 10 24 32 72 80 counts 64 104 164 238 438 6 134 166 and 174 slots 1 1 E 38 slots up to 11 I E up to 4 drives up to 12 drives 2 Element 4 Doors Two doors supported One door only for service one for service and one for media access 5 Initialize 10 2 As defined The TypeSel field does not The section defines the Element support the identical scans as operation There is a Status the G Ent See the section ScanMd bit added to the Command special modes page 2 1h that provides for compatible function between the Gx and G The default mode is not the same as the G Ent 6 Initialize 10 3 Supported Not Supported Due to the relatively small Single number of max slots Element Vendor ID is IDE is Plasmon S Inquiry 10 4 Standard data page Standard data page produc
87. n 42 Issue Mode Sense if desired to obtain mode parameters changed via front panel or by another host and then resubmit desired Mode Selection command 43 Log the medium changer sense data and display a message to call for service The power to the medium changer should be turned off and disconnected 44 Ensure that the lift lock is disengaged from the lift manual intervention 45 Wait a few seconds Then retry the command If the unit continues to fault check to ensure that the front panel is at the main screen Then retry command 46 Log the sense data and issue a SCSI bus device reset Clear subsequent unit attentions Then retry the command If the unit continues to fault then log the medium changer sense data mark the medium changer failed and display a message to call for service 47 This fault means that a sensor in the IO station is bad The medium changer could still be used without IO station activity Service should be called to repair the IO station sensor or sensors 11 3 Medium Changer Device Sub codes The following is a list of error sub codes that are to further define the type of error returned These codes help to specify a particular error type These sub codes are part of the sense data at byte 29 and can be referenced in section 10 16 Sub code Description Action 01 Lift Stall This error can occur when the wrong main circuit board is installed in a model 02 Lift Timeout
88. nd 17h The Release Element command is used to release reservations on a previously reserved medium a device or aa reserved elements within it Operation F 17h me e a Te Reserved 00h Element equals bit of 1 if a specific set of elements is to be released or O if the entire medium changer device is to be released Reservation Identification is a code byte used to identify a specific element reservation to be released Refer to the Reserve Element command for more information 10 16 REQUEST SENSE Command 03h The Request Sense command requests that the medium changer device send Sense Data to o Operation Code 03h Reserved 00h Allocation Length Reserved 00h The Sense Data will be valid for a CHECK CONDITION status returned on the prior command The Sense Data will be preserved by the medium changer device until retrieved by the Request Sense command or until receipt of any other command The Request Sense command shall return a CHECK CONDITION status only to report fatal errors for the Request Sense command For example 1 The medium changer device detects a non zero reserve bit in the CDB 2 An unrecoverable parity error occurred on the DATA BUS 3 An medium changer device malfunction prevents return of the sense data Any nonfatal error occurring during the execution of the Request Sense command shall return the sense data with GOOD status The Sense Data Format is as follows Sense Data Format
89. nd from medium storage elements and data transfer elements The term library and media changer are used interchangeably The term media changer is more rigorously used by the SCSI standards documents 97706346 Plasmon Gx Libraries SCSI Reference Manual Medium Transport Elements MTs The optical disk transport mechanisms in the library system The library system contains two medium transport elements They are also referred to as the pickers Medium Transport Assembly MTA An assembly of medium transport elements within a single housing All library systems contain a primary MTA and some contain an alternate MTA MO Magneto Optical A method of recording data involving the physics of magnetic and optical techniques MSB Most significant bit Picker A medium transport element particularly when pulling or pushing a cartridge Pivot The portion of the library system responsible for rotating the medium transport assembly between columns of storage slots or drives Printed Wire Assembly PWA A populated library system circuit board SCSI Small Computer System Interface an ANSI specification defining the transfer of commands and data between two devices such as a host computer and a computer peripheral The second version of this specification is known as SCSI 2 SCSI ID A unique address for each device on an SCSI bus The host and the medium changer device must each have an SCSI ID between 0 and 7 inclusive The drives
90. nt Address LSB Info2Valid Reserved 0 Reserved 0 Rsvd 0 25 26 MSB Second Source Element Address LSB Second Destination Element Address 29 Error Subcode 30 Error Type Error Context Medium Transport Element Number 33 34 MSB Failure Element Address Drive only LSB 35 Component Number 36 37 Internal Error Location 38 39 MSB Put A Offset 40 41 MSB Put B Offset 42 43 MSB Pick A Offset Pick B Offset Reserved 0 Pivot Offset 49 Reserved 0 MTA Side 50 51 MSB Flip Offset 52 83 DSP Error Information 84 127 Reserved for in house use ChgrReady equals 1 if the medium changer device is ready to accept new cartridge movement commands or 0 if the medium changer device is jammed and a Rezero Unit command is required to reinitialize the unit Restored equals 1 if all cartridges being moved have been returned to their source elements and the medium changer device has been restored to the state in which it was in before the last command was issued Completed equals 1 if cartridges have been moved and the last command completed successfully AllReturned equals 1 if all cartridges have been returned to their last storage element locations 97706346 Plasmon Gx Libraries SCSI Reference Manual 63 MT1Full equals 1 if the first medium transport element address 8001 is full MT2Full equals 1 if the second medium transport element address 8002 is full FailSecond equals 1 i
91. nt List A list of code bytes associated with events occurring within the library system or communication occurring between the library system and an associated drive The particular code bytes logged depend upon the value of the event history type This list is used only for error analysis and debugging Event History Type A byte defining the type of bytes logged in the event history list Export Moving a cartridge to the IO station so that the operator may remove it from the library system Flash A nonvolatile electrically erasable area of memory used to store software for the library system Import Retrieving a cartridge from the IO station so that it may be used in the library system Import Export Element IE The externally accessible IO station through which media are added to or removed from the library system LSB Least significant bit Lift The medium transport assembly particularly when moving vertically IO station The operator accessible media slot through which individual cartridges are added to or removed from the library system Library Libraries The functional device which consists of a robot controller and interface that facilitates the moving of media to and from medium storage elements and data transfer elements The term library and media changer are used interchangeably Media Changer The functional device which consists of a robot controller and interface that facilitates the moving of media to a
92. o the IO station An 04 80 98 will be the status of the IES when this occurs A second IES should then be done which should return with good status Display a message indicating that a piece of media has been exported to the IO station and that this volume should most likely be re imported to the medium changer 7 Log the medium changer sense and issue a Rezero Unit command with the RecalOffs bit 1 to cause the library to recalibrate If the unit faults a second time log the medium changer sense mark the medium changer failed and display a message to call for service 8 Log the medium changer sense Issue a Read Element Status command and check for media present in the IO station If no media is in the IO station then re issue the last command If error persists then display a message requesting the operator to check the IO station for the presence of media and remove if appropriate If media is not present then retry the last command If the unit continues to fault log the medium changer sense mark the medium changer failed and display a message to call for service 9 Log the medium changer sense Issue a log sense page 34h and page 35h in that order and save the data Then retry the command If the unit continues to fault log the medium changer sense log sense pages 34h and 35h mark the medium changer failed and display a message to call for service 10 Issue an Initialize Element Status IES command to update the element status Issue Read
93. om which the medium changer recovered This is an informational indication only issued by the medium changer when report recovery mode s set 01 80 4A 23 Bar code reader reset occurred na This error code is currently not used 02 04 01 01 Not Ready in process of becoming ready 3 The medium changer is in the process of powering up or recovering from a SCSI reset 97706346 Plasmon Gx Libraries SCSI Reference Manual 73 02 04 82 04 Not Ready motors are running 3 The medium changer is Not Ready due to robotic motion which is most likely for power up calibration or another host is moving media 02 04 83 05 Not Ready library is parked 4 The medium changer is Not Ready due to a robotic lpark process for shipping The library must be power cycled to clear this situation 02 04 84 06 Not Ready programming DSP na This error code is currently not used 02 04 86 32 Pickers full and unable to export 5 An indication that the two MTEs have media present and media was also found in utility slot 2 when doing and Initialize Element Scan IES operation This would be an extremely rare fault condition most likely caused by the accidental manual placement of media in the utility slots 02 04 88 3D Not ready utility slot full 6 A motion operation faulted such that media was left in a utility slot or media was found in a utility slot and could not be exported to the IO station since media is
94. ommand This is repeated until all the data is sent The Firmware Download parameter list is shown below Firmware Download Parameter Data Size of Library System Firmware Object File n LSB 4 n Library System Firmware Object Code Upon completion of the Write Buffer command the library system will reboot the library system controller board Host software should again poll with the Request Sense command waiting for GOOD status 97706346 Plasmon Gx Libraries SCSI Reference Manual 70 10 23 2 Changing the Medium Changer Device SCSI ID To change the SCSI ID of the medium changer device set Mode to 2 Buffer ID to 0 Buffer Offset to O and Parameter List Length to 1 The parameter data consists of a single byte specifying the new SCSI ID the medium changer device The medium changer device SCSI ID parameter list is shown below Medium Changer Device SCSI ID Parameter Data ee O A O O IO EAEE New Medium Changer Device SCSI ID After returning good status to this command the medium changer device will respond to the new SCSI ID for subsequent SCSI commands issued to it 10 23 3 Assigning Drive Good Bad Status Codes To assign drive status codes set Mode to 2 Buffer ID to 1 Buffer Offset to 0 and Parameter List Length to 12 The parameter data consists of an array of bytes containing a status code for each drive The drive status code parameter data is shown below Drive Good Bad Status Code Parameter Data
95. owed by a Read Element Status command Once the position of cartridges are known the host may wish to load each cartridge into a drive one side at a time to read content information Obviously this is a time consuming operation so should be done only when necessary In libraries equipped with a bar code reader the Read Element Status command will return bar code information which can be used to identify specific cartridges 97706346 Plasmon Gx Libraries SCSI Reference Manual 97 12 5 Using the Library Moving Cartridges Although cartridges can be moved by using the Move Medium command and specifying the medium transport elements as source or destination addresses it is much more efficient to use the Exchange Medium command whenever possible and not to specify medium transport elements For example the command Exchange Medium ST to DTI to ST2 will exchange the cartridge in storage element 1 with the one in drive 1 and return that one to storage element 2 Various schemes can be used to optimize the performance of the library For example frequently used cartridges can be placed closer to the drives or one of the pickers can always be left in a full state The latter example would be useful if a number of drive load requests had been queued at the host The host would use a Move Medium command to load the first n cartridges into drives and another Move Medium to move the next cartridge in the queue to a picker From then on the hos
96. owing possible sources Picker Assembly without Lift Body Picker Interface Circuit Board Lift Circuit Board Main Circuit Board Lift Cable 1C Flip Sensor Failure A or B A hardware fault needing service for one of the following possible sources Flip Sensor A or B Lift Circuit Board Main Circuit Board Lift Cable 1D Flip Failure A hardware fault needing service for one of the following possible sources Flip Motor Flip Sensor A or B Picker Assembly without Lift Body Picker Interface Circuit Board Lift Circuit Board Main Circuit Board Lift Cable 97706346 Plasmon Gx Libraries SCSI Reference Manual 89 1E Pivot Failure This error can occur when the wrong main circuit board is installed in a model A hardware fault needing service for one of the following possible sources Check sector gear teeth at top of lift shaft Pivot Home Sensor Pivot Motor Main Circuit Board 30 Auto Offset sensor failure A hardware fault needing service for one of the following possible sources Auto Offset Sensor Picker Interface Circuit Board Lift Circuit Board Main Circuit Board Lift Cable 31 Auto Offset sensor and or pivot home sensor failure A hardware fault needing service for one of the following possible sources Auto Offset Sensor Pivot Home Sensor Picker Interface Circuit Board Lift Circuit Board Main Circuit Board Lift Cable 32 Pick cali
97. ported status 6 12 l 1 As defined TBD May modify format Will replace irrelevant while retaining overall length fields such as CAN pass through alternate MTA error codes into the ASCQ i i ae differences in system mechanics and electronics architecture Replaced by ASCQ See table in 12 1 12 4 As defined TBD These may change due to differences in system mechanics and electronics architecture 97706346 Plasmon Gx Libraries SCSI Reference Manual 110 14 Appendix D UDO2 Integration 14 1 Introduction The purpose of this section is to outline recommendations for implementing support for UDO2 drives and media when they become available The Plasmon libraries support a field upgrade to UDO2 drives and media Additionally a mix of UDO1 and UDO2 are supported by the Plasmon Gx libraries Plasmon software connectivity partners i e ISVs will want to give consideration to whether they will support upgraded configurations with a mix of UDO1 and UDO2 drives and media The following table defines the compatibility between UDO1 and UDO2 media and drives UDO Media and Drive Compatibility Table Generation UDOI Media UDO2 Media Media Type RW wo CW RW wo CW UDO1 Drive R W R W R W S NS NS NS UDO2 Drive R R R S R W R W R W S Legend RW Rewriteable WO WriteOnce CW Compliant WriteOnce R Read W Write S Shred NS Not Supported Customers who currently have UDO1 drives may not have filled all t
98. porting medium changer device to an initiator It performs the same function as the Mode Sense 6 command O Operation Code 5Ah Reserved 00h DBD 0 Reserved 00h Page Code a Reserved 00h MSB Allocation Length LSB Reserved 00h DBD Disable Block Descriptor is ignored Neither a value of 1 or O will result in a Block Descriptor being reported 97706346 Plasmon Gx Libraries SCSI Reference Manual 47 PC Page Control defines the type of parameter values to be returned Normally a value of 0 is used to return the current values Page Code defines the parameter page s to be returned The Allocation Length specifies how many bytes of data are to be returned The Mode Sense 10 data block consists of a 8 byte header followed by one or more supported pages The header is shown below Mode Sense 10 Mode Parameter Header pee eS eS I A A pot H MSB Mode Data Length LSB Medium Type 00h Device Specific Parameter 00h Reserved 00h Block Descriptor Length 00h Mode Data Length is the length in bytes of the remainder of the Mode Sense 10 return data See the Mode Sense 6 command Section 10 8 for information about supported mode pages 10 10 MOVE MEDIUM Command A5h The Move Medium command instructs the medium changer device to move a unit of media from a source element to a destination element o Operation Code A5h Reserved 00h 2 3 MSB Transport Element Ad
99. quals 1 indicating that parameters are structured as pages of related parameters SP Save Pages equals 1 if the target is to save changeable parameters in pages i e if values are to be saved to non volatile memory If this bit is O values are not saved when power is cycled to the library or when it receives a Bus Device Reset message or the SCSI Reset line is asserted Parameter List Length specifies the length in bytes of the Mode Select 6 parameter list The Mode Select 6 parameter list consists of a 4 byte header followed by one or more of the medium changer device s supported pages The header is shown below followed by the supported pages Mode 6 Mode Parameter Header Mode Data Length 00h Medium Type 00h Device Specific Parameter 00h Block Descriptor Length 00h 97706346 Plasmon Gx Libraries SCSI Reference Manual 35 10 6 1 Library Mode Parameters Page 20h ue Mode Select Library Mode sae Page is as Sos Page Code 20h Parameter TON 08h O vaea Rem Pak Fosened o SetDr1 4 ode Drive Number RW RW RW Reserved 00h Reserved 00h Pa Reserved OOF A a a SetDrOpt Reserved 0 DASDInq WrCa FVerOn Enab Wr Reserved 00h E SetType Event History Type bits 8 11 MEAR Event History Type bits O 7 ReportRec is set to 0 if the device is to return GOOD status for all recoverable hardware errors The default for this bit is 0 This bit is set to 1 if the medium changer
100. ransport Element Number is the number of the medium transport element 0 1 or 2 in use when the error occurred Failure Element Address is the address of the element that failed Currently only failing drive elements are reported Component Number is unused Internal Error Location is a number that is useful to Plasmon technical support Put A Offset and Put B Offset are the step counts for pickers A and B required to put a piece of media into a storage element These values are from the last calibration that was executed Pick A Offset and Pick B Offset are the step counts for pickers A and B required to pick a piece of media into a storage element These values are from the last calibration that was executed Pivot Offset is the number of steps required to pivot between columns and 2 from the last calibration that was executed MTA Side is the MTA side 0 or 1 up when the error occurred Flip Offset is the number of steps required to flip the MTE from side A to side B or from side B to side A These values are from the last calibration that was executed DSP Error Information is information indicating the nature of a DSP error that resulted in a check condition to the host 97706346 Plasmon Gx Libraries SCSI Reference Manual 64 10 17 REQUEST VOLUME ELEMENT ADDRESS Command B5h The Request Volume Element Address command is used to transfer the results of a Send Volume Tag command Multiple Request Volume Element Address commands
101. rencing 49 Reworded AvolTag section to be specific about media orientation 01 04 04 Added more description to TypeSel field of Initialize Element Added function for TypeSel 3 for firmware G01 or greater Changed the Initialize Element Status command for ScanMd Changed Sync 1 to 0 since unit does not support sync mode Text library recovery errors changed to library recovered errors Bytes 78 81 used for cum Pick put error recovery counts Rear and front fan bits were reversed so corrected description Added details to section 10 5 2 Error Statistics Page 31h Corrected 10 5 3 from page length of 1900h to 2000h Changed SCSI event history page 34h to 16K Added ScanMd to the Mode Select Special Modes page 21h Changed AllowOff to PowerOff with new definition Changed PowerOff from bit 7 to bit 4 of byte 2 page 23h Added ScanMd to the Mode Sense Special Modes page 21h Added four corners mode page section 10 8 8 Added note to 10 14 4 to disallow reuse of byte 6 bit 7 NotBus Changed to Overlapped Commands Attempted Revised 10 23 1 to be more correct Added error code 0x28 and 0x2C to Appendix A Added internal error codes 0x2E 0x2F 0x35 97706346 Plasmon Gx Libraries SCSI Reference Manual ii fy Fixed section 12 3 to be consistent along with title error F 02 15 05 Added the Gx 134 into section 6 0 Element Addresses and Counts Added Gx134 to H firmware for product revision level Added model id 106 to t
102. report that match the last Send Volume Tag translate template Allocation Length specifies the length of the Element Status Data The structure of the Element Status Data returned is identical to that of the Read Element Status command See the Read Element Status command Section 10 14 for the format of the data returned by this command 97706346 Plasmon Gx Libraries SCSI Reference Manual 65 10 18 RESERVE ELEMENT Command 16h The Reserve Element command is used to reserve the medium changer device or specific elements within it If the entire medium changer device is reserved any other SCSI initiator will only be permitted to execute the following commands Inquiry Request Sense Read Element Status and Release ignored Any other command will generate RESERVATION CONFLICT status o Operation E 16h Bement aio T Eag MSB Element List Length LSB 5 Reserved 00h Element equals bit of 1 if specific elements are to be reserved or 0 if the entire medium changer device is to be reserved Reservation Identification provides a means for the initiator to to identify each element reservation with a specified code byte It is used in the Release Element command to specify which reservation is to be released and in a superseding Reserve Element command to specify which reservation is to be superseded Element List Length specifies the length in bytes of the Reserve Element element list The Reserve Element ele
103. rive 1 Gx24 Slot Map Drive 1 Gx32 Slot Map 97706346 Plasmon Gx Libraries SCSI Reference Manual 101 Utility slots are for library operation only not for customer media storage 27 26 25 Mailslot Utility Slot Utility Slot 1 2 3 22 23 24 Drive 4 Drive 3 Drive 2 Drive 1 Gx80 4 Drive Slot Map 97706346 Plasmon Gx Libraries SCSI Reference Manual 27 26 25 Mailslot Utility Slot Utility Slot 1 2 3 80 Drive 2 Drive 1 Gx80 2 Drive Slot Map 102 Utility slots are for library operation only not for customer media storage Mailslot Mailslot Utility Slot Utility Slot Utility Slot Utility Slot 1 1 134 2 134 2 133 3 133 3 132 132 z 131 b 131 7 60 60 61 61 62 62 Drive 4 66 Drive 3 66 65 65 z 64 Drive 2 64 Drive 2 63 Drive 1 63 Drive 1 Gx134 4 Drive Gx134 2 Drive Slot Map Slot Map 97706346 Plasmon Gx Libraries SCSI Reference Manual 103 Utility slots are for library operation only not for customer media storage 158 157 156 155 Mailslot Utility Slot Utility Slot 1 2 3 159 166 Drive 4 Drive 3 Drive 2 Drive 1 Gx174 4 Drive Slot Map 97706346 Plas
104. rned so that each Mode Sense command returns key presses since the last Mode Sense command was issued Since the Mode Sense command only returns one key at a time the key presses are Fourth right most key was pressed 6 97706346 Plasmon Gx Libraries SCSI Reference Manual 46 queued in a FIFO that is four key presses deep Only the most recent four key presses are saved MenuSeld equals 1 if the on line menu has been selected at the library front panel interface KeyPressed is not updated if this bit is set 10 8 8 Mode Sense Library Four Corners Page 25h The Mode Sense Library Four Corners Page is as follows o PS Rsvd 0 Page Code 25h Parameter Length 08h MSB Top Right Corner Slot LSB MSB Bottom Right Corner Slot LSB MSB Top Left Comer Slot LSB Kag MSB Bottom Left Comer Slot LSB This page describes the slot locations in a given library model that map to the extreme geometrical physical boundaries of the library This information is useful when used in a host level diagnostic test to verify proper mechanical operation For single column models the left top and bottom fields will contain OFFFFh to indicate they are invalid The default settings will also be invalid since all models a different Note that the right or left locations are from the frame of reference of the rear of the library 10 9 MODE SENSE 10 Command 5Ah The Mode Sense 10 command provides a means for re
105. ry system Flash firmware via a Write Buffer command 97706346 Plasmon Gx Libraries SCSI Reference Manual 19 When a Unit Attention condition occurs as a result of an SCSI command issued by an initiator it is only reported to other initiators on the same SCSI bus and not to the initiator which issued the command 97706346 Plasmon Gx Libraries SCSI Reference Manual 20 10 SCSI Commands 10 1 EXCHANGE MEDIUM Command A6h The Exchange Medium command instructs the medium changer device to exchange a cartridge in a source element with a cartridge in a first destination element and place that cartridge in a second destination element Using this command instead of Move Medium can significantly decrease cartridge swap times po OperationCode ACh O 2 3 MSB Transport Element Address LSB MSB Source Element Address LSB MSB First Destination Address LSB MSB Second Destination Address LSB The cartridge in the source element is moved to the first destination element and the cartridge which previously occupied the first destination element is moved to the second destination element Transport Element Address specifies the medium transport element For the most efficient operation an address of zero should be used This will allow the medium changer device to use both medium transport elements to accomplish the cartridge exchange in the least amount of time A specific medium transport element may also be speci
106. s 0 7 8 11 indicates the data that is to be logged in the log sense data The actual format of this field is as follows Event History Location a Type bit Description 11 Byte 8 bit 6 Enable Disable Task Logging 10 Byte 8 bit 5 Enable Disable SCSI Logging 9 Byte 8 bit 4 Enable Disable DSP Logging Others Reserved 97706346 Plasmon Gx Libraries SCSI Reference Manual 37 10 6 2 Library Special Modes Page 21h The Mode Select Library Special Modes Page is as follows 0 Reserved 0 Page Code 21h Parameter a 08h AMA o o O 3 ion Reserved 0 NoPwrCyc 4 SetOptions4 Resered O EnabMslot EnabBCR Reserved 0 5_ SetOptonss Scand A O sae Element Addressing aie SetBCType Bar Code Type 8 9 fo CRs OOH Reserved 00h LightOff equals 1 if the medium changer device is to leave its front panel ACTIVE light off for future system heart beat activity This is useful for element status polling A 0 in this field reenables the ACTIVE light for system heart beat activity ScanMd determines the type of scan that the library does based on the TypeSel field of the Initialize Element Status command This field is provided as a compatibility option with previous G class libraries See the Initialize Element Status command for a table that shows the affect of the ScanMd state O Slow 1 Fast The default for this field is O SetOptions3 equals 1 if any of the options in byte 3 ar
107. served 0 SCSI Bus Address PA Reserved 00h 9 Said Inet Reserved 0 10 11 MSB Source Storage Element Address LSB 12 z See Medium Transport Element Descriptor NOTE Byte 6 bit 7 was historically NotBus for the G models but is not necessary for the Gx models This bit is not to be re used for any future functionality Access bit of 1 indicates access to the data transfer element by the medium transport element is allowed Access may require that a SCSI Start Stop Unit command be sent to the corresponding optical drive to effect an eject Note The media type is always reported as UDO 1 if the data transfer element is a UDO drive and MO 0 if the data transfer element is a Sony MO drive Additional Sense Code ASC and Additional Sense Code Qualifier for data transfer elements may contain the following values 5Fh Drive being shut down due to low module fan speed 00h Bar code not scanned 04h Drive not installed or turned off off line 09h Unable to read bar code OAh Drive being turned off 5 sec warning 80h Utility slot exception IDValid equals 1 if the SCSI Bus Address field contains valid information This bit will be set if the drive is installed and turned on SCSI Bus Address is the SCSI ID of the corresponding library drive Other fields are the same as for the medium transport element descriptor 97706346 Plasmon Gx Libraries SCSI Reference Manual 59 10 15 RELEASE ELEMENT Comma
108. sition to element initialize element status send diagnostic rezero as well as mode select since it can affect motor motion Note unless the LmtErrRec bit is set or the ChgrEjects bit is reset in the Mode Select Vendor Unique Mode Parameter Page the Rezero Unit command will unload all drives After unloading the media transport elements and optionally the data transfer elements the Rezero Unit command will reinitialize the changer based on the bits in byte 5 Operation Code 01h Reserved 00h RecalOffs Park ScanU Reserved 0 RecalOffs equals 1 if all library system offsets are to be recalibrated After this operation the medium changer device is returned to its home position Park equals if the media transport element is to be moved to its park position This is required in preparation for shipment of the system ScanU equals 1 if the utility slots are to be scanned Set this bit if a previous operation fails by indicating that utility slots are full 10 20 SEND DIAGNOSTIC Command 1Dh The Send Diagnostic command instructs the medium changer device to perform a self diagnostic test on itself ee D 1Dh MSB Reserved 00h eae o IRAN Parameter List Length 00h LSB Reserved 00h PF Page Format is ignored Selftest Self Test equals 1 indicating default self test Dev0fL Device Off line and UnitOfL Unit Off line both equal bits of 0 indicating no vendor specific diagnostic that may be v
109. situations call for operator intervention Procedure Description 1 If there is no Check Condition then no action is required continue with the next command If there is a Check Condition send a SCSI Device Reset to the medium changer and retry the last command If the error persists log the failure and display a message to call for service 2 Log the medium changer sense and continue with the next command 3 Continue to send the last command until the Not Ready condition is no longer reported If the Not Ready condition persists for more than the timeout value specified in section 8 send a SCSI Device Reset to the medium changer and retry the last command If the Not Ready persists for an additional timeout value log the medium changer sense data mark the medium changer failed and display a message to call for service 4 Manual intervention is required Power the medium changer off and then back on 5 Issue commands that move any media in the MTE to storage slots Then issue an Initialize Element Status IES command to update element status 6 Log the medium changer sense Display a message to remove any media that may be present in the IO station Issue a Rezero Unit command with the RecalsOffs bit 1 to cause the library to recalibrate Then issue an Initialize Element Status IES command to update the element status This IES will automatically invoke error recovery that will export any media in the utility slot t
110. srvd Rsrvd 0 Drv4 Drv3 Drv2 Disc Drv 1 0 0 Disc Disc Disc Rsrvd Rswd Rsrd Rsrvd Rsrvd Rsrvd 0 0 0 0 0 0 0 Rsrvd 0 LastMT MTASide FanR FanF PsGood 32 35 MSB Cumulative Lift Movement Count LSB 36 39 MSB Cumulative Picker Movement Count Picker 1 LSB 40 43 MSB Cumulative Picker Movement Count Picker 2 LSB 44 47 MSB Cumulative Change of Picker in Use Count LSB MSB Cumulative IO station Count LSB MSB Cumulative Flip Count LSB 60 63 Cumulative Lift Error Recovery Count LSB Cumulative Pivot Movement Count 97706346 Plasmon Gx Libraries SCSI Reference Manual 30 64 67 MSB Cumulative Picker Error Recovery Count 68 71 MSB Cumulative Pivot Error Recovery Count Cumulative Flip Error Recovery Count LSB 76 Library Power On Minutes 77 Library Power On Seconds 78 81 Reserved 00h Library Power On Hours equals the total number of hours that power has been applied to the library Library Swap Count equals the total number of times that a cartridge has been moved in the library Library Recovery Attempts equals the total number of times that the library executed an error recovery procedure ERP Library Recovery Errors equals the total number of times that an ERP failed to recover library operation Drive 1 4 Load Count equals the number of times the corresponding drive has been loaded OvrTmp equals 1 if the cabinet is abo
111. ss order 97706346 Plasmon Gx Libraries SCSI Reference Manual 54 10 14 1 Medium Transport Element Descriptor ue meen transport element descriptor is as follows ed sone ee ep ESA MSB Element Address LSB 2 Reserved Except Revd 0 Fui Reserved 00h 4 Additional Sense Code 5 Additional Sense Code Qualifier ETA Reserved 00h xqG ee tee Source Storage ae ae LSB Format 1 No bar codes requested VolTag 0 BarCodes 0 Reserved 00h 16 MediaType MO 0x00 UDO 0x01 unknown OxFF Format 2 Bar codes requested condensed format VolTag 0 BarCodes 1 Reserved 00h Bar Code Length z 17 Bar Code MediaType MO 0x00 UDO 0x01 unknown OxFF Format 3 Bar codes requested volume tag format one bar code per cartridge EN PVolTag 1 AVolTag 0 Reserved 00h MediaType MO 0x00 UDO 0x01 unknown OxFF 97706346 Plasmon Gx Libraries SCSI Reference Manual 55 Format 4 Bar codes requested volume tag format side unique bar codes VolTag 1 PVolTag 1 AVolTag 1 Reserved 00h 48 79 Alternate Volume Tag Bar Code 80 87 Reserved 00h 88 MediaType MO 0x00 UDO 0x01 unknown OxFF Except equals 1 if the element is in an abnormal state In this case additional information is given in the Additional Sense Code and in the Additional Sense Code Qualifier fields Full equals 1 if the element contains a unit of media
112. sseseetecessses 21 10 2 INITIALIZE ELEMENT STATUS Command 07b oooonoconoccncccoccnononanonnnonnconncnnonnnonononnnonncnncnnnons 22 10 3 INQUIRY Command Diana ida 23 10 3 1 Supported Vital Product Data Pages Page 00b ooonoccnnncccnocicononoccnonaccnnncncnnnnncnnncnonononononnnnos 25 10 3 2 Unit Serial Number Pase an 25 104 sLOG SELECT Command ACH A paces aaa ve lee ene oe a ee 25 104 1 Uni Statistics Pace SOR A a aee 26 10 4 2 Error Statistics Page SL vessiscvecsceisscencsaspescdvasadencivanavessiscpsadeads aE e EEEE ESS A E REEE RiEs 26 DAS Error Log Pace O20 ta 27 10 4 4 Task History Par inap ei a T aaie EE ean aaron 2T 10 4 5 SCSI Event History Page Boh viii anciana des 27 104 6 DSP Event History Page 35h ni ii 28 10 5 LOG SENSE C mmand Ad tots 28 97706346 Plasmon Gx Libraries SCSI Reference Manual 10 5 1 Supported Los Pages Page DI tico o tit 29 10 5 2 Unit Statistics Page GOB uscar E Raa lass cacasaseaneeacsdae 30 037 Error Statistics Par a e ld e 32 Is DEE E AE T E E E cua natal E E E S 33 105 5 Task History Page aiii ire 34 10 5 6 SCSL Event History Pared A E E A 34 10 5 7 DSP Eyent History Page SSN a a a a cua wales uactven seam usnaa dens seanae ons 34 10 5 9 NVRAM C n te ts Page os 35 10 6 MODE SELECT 6 Command aa 35 10 6 1 Library Mode Parameters Page 20hb isis cen dedos 36 10 6 2 Library Special Modes Page 2 UA ra E AAA ees 38 10 6 3 Drive Assignments Page 22 ii 38 10 6 4 Front
113. such changes in previously manufactured units Technical Support Information For technical support contact United States Plasmon Inc 4425 ArrowsWest Drive Colorado Springs CO 80907 Tel 877 585 6793 Fax 719 593 4192 Email tech supportOplasmon com Internet www plasmon com European Headquarters United Kingdom Plasmon Data Limited Whiting Way Melbourne Herts SG8 6EN Tel 44 0 1763 262 963 Fax 44 0 1763 264 407 Email support plasmon co uk Internet http www plasmon co uk Plasmon 2005 All rights reserved 97706346 Plasmon Gx Libraries SCSI Reference Manual Printing History a tiem O CTC a regarding Models 136 144 200 208 06 16 04 Removed reference support for element address scheme 2 Removed models and corrected to model 166 and 174 Description added to make clear how op panel text is centered Reworded 10 8 1 to clarify the Number of Data Transfer Elements MO drive type changed from OxE0 to OxOE A typing error UDO drive type changed from OxE 1 to OxIE A typing error Removed references to Mode Sense of op panel power button Added the location of MediaType to section 10 14 1 Added Except description to make more readable Documented additional sense bytes 84 127 More description for Buffer ID 2 under Write Buffer Command 06 23 04 Appendix Added appendices combining developers guide into this Spec Table Of Contents Added SCSI commands to TOC for easy refe
114. t No hardware support Single I E Note increased field length Single bus only 108 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 Mode Sense 10 9 5 Byte 2 bit 1 No Byte 2 bit 1 reserved 0 No M series emulation scan ST Special Mode Mode 10 9 5 Byte 2 bit 0 No Byte 2 bit O reserved 0 No M series emulation Sense scan DT Special Mode Mode 10 9 5 Byte 3 bit 5 log Byte 3 bit 5 reserved 0 No M series emulation Sense info Special Mode Mode 10 9 5 Byte 4 bit 4 enable Byte 4 bit 4 reserved 0 No magazine Sense magazine Special Mode Mode 10 9 5 Byte 4 bit 1 enable Byte 4 bit 1 reserved 0 No alternate MTA Sense AMS Special Mode Mode Sense 10 9 5 Byte 5 emulation Byte 5 reserved 0 No emulation support enable and mode Special Mode Mode 10 9 6 Bytes 2 4 6 8 10 12 Always 0 Now 0 or 1 for MO or Sense UDO Drive Assign Mode 10 9 6 Bytes 14 25 drives Bytes 14 25 reserved 0 Sense 6 12 Drive Assign Mode 10 9 8 Supported NOT supported Not needed based on Sense number of columns and Drive drives supported Layout Move Medium Option Open or 10 12 Supported NOT supported No door on the mail slot Close IO station Prevent or 10 14 Byte 5 bit 7 6 PA Byte 5 bit 7 6 reserved 0 No door on the mail slot Allow option and no magazine Read Bytes 6 11
115. t ID Note required spaces product ID is is Midrange G MULTI 9 Inquiry 10 4 Standard data page Standard data page product Note required spaces 3 product revision level revision level is X Y Yz applies to production level 1s 3xy only Note new format 10 Inquiry 11 Inquiry Standard data page Standard data page model ID All G series types will model ID is 0 6 is 0 100 10x have unique model numbers Model numbers should be used for ID purposes as opposed to the production level 12 Inquiry 4 Additional Unit Additional Unit Information Information in this page is Information page page NOT supported redundant or irrelevant supported 97706346 Plasmon Gx Libraries SCSI Reference Manual 105 13 Log Select 10 5 1 Supports drives 1 Supports drives 1 6 12 Unit Statistics 14 Log Select 10 5 5 Supported Not Supported Not used outside of Micro ops engineering 10 5 6 Supported Not Supported No hardware support 10 6 1 Supports pages 34 Does not support pages 34 and See below and 35 35 15 Log Select Time Page 16 Log Sense Supported Log Pages 17 Log Sense 10 6 2 Supports drive load Supports drive load counts for Unit counts for 1 12 1 6 Statistics 18 Log Sense 10 6 2 Byte 46 bit 6 SCC Byte 46 bit 6 reserved 0 No hardware support Unit cable Note byte renumbering Statistics 19 Log Sense 10 6 2 Byte 46
116. t only Single bus support only Physically different but similar meanings as stated No M series emulation 107 41 42 43 44 45 46 47 48 49 50 51 Library Special Mode Mode Select Library Special Mode Mode Select Library Special Mode Mode Select Library Special Mode Mode Select Library Special Mode Mode Select Library Special Mode Mode Select Drive Assign Mode Select Front Panel Mode Sense Device Capability Mode Sense Mode Parameter Mode Sense Mode Parameter Byte 2 bit 0 No scan DT Byte 3 bit 5 log info Byte 3 bit 1 open on export Byte 4 bit 4 enable magazine Byte 4 bit 1 enable AMS Byte 5 emulation enable and mode Bytes 14 25 drives 6 12 Byte 2 bit 7 Tone Supports I E to I E capability Byte 3 bit 7 6 library group 5 Byte 4 bit 2 0 number of buses Byte 2 bit 0 reserved 0 Byte 3 bit 5 reserved 0 Byte 3 bit 1 reserved 0 Byte 4 bit 4 reserved 0 Byte 4 bit 1 reserved 0 Byte 5 reserved 0 Bytes 14 25 reserved 0 Byte 2 bit 7 reserved 0 No support Byte 3 bit 7 5 library group 11 Byte 4 bit 2 0 number of buses RETURNS 1 97706346 Plasmon Gx Libraries SCSI Reference Manual No M series emulation No M series emulation No mailbox door No magazine No alternate MTA No emulation suppor
117. t status and key polling Section1 Section2 equals the section of the display to control if DispMode equals 1 O Entire four lines of display including keypad o 063 oO 1 Lines 3 and 4 including keypad i o Lines 1 and 2 display only no keypad polling Reserved 97706346 Plasmon Gx Libraries SCSI Reference Manual 39 PowerOff equals 0 to mean power stays on and equals 1 to cause the library to be powered down If this bit equals 1 the Mode Select command will terminate in a normal manner However library will no longer respond to further SCSI commands Power Down is achieved within 5 seconds after termination of Mode Select command ClrKeys equals 1 to clear all front panel key flags in preparation for subsequent key polling with the Mode Sense command This bit is only effective if DispMode is set to 1 and Section is set to 0 DispMode equals 1 to gain and maintain control a section of the library system front panel display or O to release control DispMode will not be effective while the on line menu is selected at the library front panel interface see the MenuSeld bit in the Mode Sense front panel display mode page Section 10 8 7 Line 1 4 Display Text is the ASCII representation of text to be displayed on the corresponding line of the library system front panel display The text by default will be centered To have text left justified the user must append blank characters to the desired text The front p
118. t would alternate Exchange Medium commands exchanging first from the full picker to a loaded drive to the empty picker Then exchanging the now full picker to the storage slot with the next cartridge in the queue to the other now empty picker 12 6 Examining Errors After processing a command the medium changer device or optical drive will normally return GOOD completion status or CHECK CONDITION status If the host receives CHECK CONDITION status it should issue a Request Sense command The Sense Key field can then be examined to see if an error occurred and if so the severity of the error The Additional Sense Code ASC and Additional Sense Code Qualifier ASCQ fields provide more information about the error or condition that triggered the CHECK CONDITION Depending upon the Allocation Length specified in the Request Sense command more information about the error will also be returned The error codes listed in this manual are for the medium changer device only Consult the specific optical drive manual for information about errors returned by the drives themselves 12 7 Drive Temperature and Low Fan Speed Warnings If during normal operation conditions the cabinet temperature is found to be overheating or system fans have experienced a significant drop in fan speed a drive warning Unit Attention will be generated If the host receives this notification it should stop reading from or writing to any cartridges in those drives and unload t
119. ted in both utility slots A e A failure occurred during operations that use utility slots as a temporary storage element and a cartridge was left in a utility slot Manually remove media from utility slots and run Scan Elements 53 Media found in utility slot 1 has been Information Only exported to the I O Station 54 Media found in utility slot 2 has been Information Only exported to the I O Station 57 During a picker calibration media Media may have been inserted into the Utility slots temporarily stored in the utility slot was no during manual loading Utility slots are not available retrievable for customer media storage A failure occurred during operations that use utility slots as a temporary storage element and a cartridge was left in a utility slot Manually remove media from utility slots and run Scan Elements 60 During calibration the picker hung up in the Check that the I O Station is in the correct position I O Station and not jamming the cartridge 61 During calibration the I O home sensor Manually return I O Station to home position showed l O Station pulled into library 97706346 Plasmon Gx Libraries SCSI Reference Manual 92 62 During calibration an obstruction was detected in the main column Check that all cartridges are in their slots correctly Check that the picker moves freely up and down on the shaft Check that the picker is not binding at the I O Station slot or drive and that the I O
120. ted that the pick flip has stalled 7 28 04 88 05 40 Picker 1 or 2 Home Sensor Failure This fault only occurs during power up self test It has been detected that the picker 1 or 2 home sensor has a fault 7 28 04 88 06 46 Lift Encoder Error This fault only occurs during power up self test It has been detected that the lift motor encoder is not working properly 7 28 04 04 88 88 07 08 63 34 1 O Station Home Sensor This fault only occurs during power up self test It has been detected that the IO station home sensor is not in the correct state This implies that the I O station is not physically in the home position Incorrect state for the I O Station Door Sensor and Media Present Sensor This fault only occurs during power up self test It has been detected that the IO station home and door sensor are not in the correct states with relation to leach other Check to see if a piece of media is partially in the I O station as this will cause this fault when powering up If media is partially inserted then either fully insert or remove the media and cycle ower on the unit 7 28 7 28 04 88 09 62 Lift motor type detection failure This fault only occurs during power up self test Power up self test could not determine the type of the lift motor installed 7 28 04 88 OA 12 Pick Flip Motor or Encoder Failure This
121. tes the barcode reader is installed while a value of zero indicates it is not installed The only barcode label supported by the library is type 2 labels 97706346 Plasmon Gx Libraries SCSI Reference Manual 45 10 8 6 Drive Assignments Page 22h The Mode Sense Drive Assignments Page is as follows o Ps Rsvi o PageCode 22 __________ a Parameter Length OEh Poe rive Type Drive 1 SCSIID P44 Tre Type C5 Ere 2SCSIID S O Pp 6 E pos rive Type A fre A SCSIID OA Drive 1 6 Type are the drive type designators for the optical drives in the library system If a drive is offline powered off its drive type will be 0x00 Otherwise an MO drive will report OxOE a UDO1 drive will report Ox1E and a UDO2 drive will report 0x3C Drive 1 6 SCSI ID are the SCSI IDs of the optical drives in the library system If a drive is off line powered off its SCSI ID will not be used until the drive is brought back on line powered on 10 8 7 Front Panel Display Mode Page 23h The Mode Sense Front Panel Display Mode Page is as follows o PS Rsvd 0 Page Code 23h Parameter Length 01h 2 Rsvd 0 LightOff Rsvd 0 Key Pressed MenuSeld DispMode LightOff and DispMode are as set by the Mode Select command Key Pressed equals 0 if no key was pressed or one of the following Meaning First left most key was pressed Not Valid Not Valid The Key Pressed field is cleared every time that this page is retu
122. the LimitRec bit is set as described above The default for this bit is 1 WaitLoad equals 1 if the medium changer device is to wait for a Ready response from an optical drive in response to a Move Medium or Exchange Medium command with the drive specified as the Destination Element or Second Destination Note that the bit is named WaitLoad but really is controlling whether the medium changer waits for a Ready indication from the drive instead of just a medium Loaded indication Command completion status will not be returned to the host until the drive indicates Ready or a 90 second timeout has lapsed If this bit is not set 0 then the host is responsible for waiting until the cartridge is spun up and Ready The default for this bit is 0 NOTE If this bit is set 1 and the NoPwrCyc bit of the Library Special Mode Parameters page is cleared 0 then after 45 seconds of the 90 second timeout the medium changer will cycle the drive power in an attempt to get the drive to come Ready 97706346 Plasmon Gx Libraries SCSI Reference Manual 36 Park equals 1 if the Media Transport Element is to be moved to its park position on the next Rezero Unit command issued This is required in preparation for shipment of the system The Park field in the Rezero Unit command can also be used for this purpose The default for this bit is O SetDr1 4 Read write only Not implemented Loaded Read write only Not implemented Drive Number Read write only Not imple
123. tification template The results are stored and are available for return in the next Request Volume Element Address command see Section 10 17 The parameters required for the Send Volume Tag command are as follows 97706346 Plasmon Gx Libraries SCSI Reference Manual 68 Send Volume Tag Parameters Format Volume Identification Template Reserved 00h 34 35 Minimum Volume Sequence Number ignored Reserved 00h Maximum Volume Sequence Number ignored Volume Identification Template specifies a 32 character template to be used for matching bar codes although only the first 20 characters are used The template may contain bar code characters or the wildcard characters and The will match any string of characters and the will match any single character Minimum Minimum Volume Sequence Number are not used and are ignored 10 22 TEST UNIT READY Command 00h The Test Unit Ready command provides a means of checking medium changer device ready status Bit 7 5 4 3 2 1 Byte sol Operation Code 00h 1 5 Reserved 00h If the medium changer device is able to accept a medium access command without returning a CHECK CONDITION status the Test Unit Ready command will return a GOOD status 10 23 WRITE BUFFER Command 3Bh The Write Buffer command is used to write new firmware to the library system to change the SCSI ID of the medium changer device to assign a good bad status code to each drive or to wr
124. tive Flip Count is incremented every time a cartridge is inverted flipped The Cumulative Lift Error Recovery Count is incremented each time there is a lift ERP executed in the unit The Cumulative Picker Error Recovery Count is incremented each time there is a picker ERP executed in the unit The Cumulative Pivot Error Recovery Count is incremented each time there is a pivot ERP executed in the unit 97706346 Plasmon Gx Libraries SCSI Reference Manual 31 The Cumulative Flip Error Recovery Count is incremented each time there is a flip ERP executed in the unit Library Power On Minutes equals the total number of minutes after subtracting the total number of hours that power has been applied to the library Library Power On Seconds equals the total number of seconds after subtracting the total number of hours and minutes that power has been applied to the library See the Gx Series Library System User Guide or Service Manual for further information about these values 10 5 3 Error Statistics Page 31h The Log Sense Error Statistics Page is as follows 0 Reserved 0 Page Code 31h Reserved 00h MSB Page Length 64h LSB First Most Frequent Error Info Second Most Frequent Error Info 94 103 Tenth Most Frequent Error Info Each set of most frequent error parameters contains error rate information for one of the most frequently occurring errors The format of these error parameters is as follows
125. to make sure that the event is not spurious This requires manual intervention If the fault persists call for service 19 No recovery action is required Log the medium changer sense and retry the command 20 Log the medium changer sense data An attempt to decrease the medium changer temperature can be made by decreasing drive read write activity This can be done by using the Mode Select command to power down unused drives The internal cabinet temperature can be read using the Mode Sense command If temperature does not decrease then no further recovery action can be performed Log the medium changer sense data mark the medium changer failed and display a message to call for service The power to the medium changer should be turned off and disconnected 97706346 Plasmon Gx Libraries SCSI Reference Manual 85 Procedure Description 21 The library has sensed a critical temperature Log the medium changer sense data The internal cabinet temperature can be read using the Mode Sense command to verify the fault Mark the medium changer failed and display a message to call for service The power to the medium changer should be turned off and disconnected Alternatively the power could be left on and the cabinet temperature monitored to see if the temperature drops to an acceptable level Then the drives could be powered back on 22 Log the medium changer sense data and display a message to call for service Retr
126. torage elements Import export elements Data transfer elements S Starting Element Address specifies the minimum element address to report Only elements with an element type permitted by the Element Type Code and the Starting Element Address are reported Number of Elements specifies the maximum number of element descriptor tags to be reported by the medium changer device for this command The value specified by this field is not the range of element addresses to be considered for reporting but rather the number of elements to report CurData Current Data specifies that the element status data is to be returned without causing any device motion This field is ignored as the library system will always return element status data without causing device motion Allocation Length specifies the length of the Element Status Data BarCodes equals 1 if the medium changer device is to return bar code information or 0 if bar code information is not to be returned This field is only valid if VolTag equals 0 If VolTag equals 1 bar code information is always returned Not all models support bar codes The structure of the Element Status Data returned is as follows 8 byte header Element Status Pages 8 byte header Element Descriptors Element Descriptor a a Bytes counted in Element Descriptor page header Bytes counted in overall header Element Status Page More Element Descriptors More Element Status Pages 97
127. type should rarely have to be performed However if there is a conflict detected by the library then the library will need to be commanded to rescan all the media for type via the Initialize Element Status command The library will always check the media type when it is drawn into the picker and will thus detect 1f an incompatible media is being sent to a drive The host will be informed via SCSI of this and the media will be returned to its source At any time the media type is available to the host via the Read Element Status command The location of this information can be found in the SCSI manual 97706346 Plasmon Gx Libraries SCSI Reference Manual 99 12 9 Slot Maps The following figures depict the physical slot maps for the various library models Note that the utility slots are for internal use only Utility slots are for library operation only not for customer media storage Mailslot Mailslot Utility Slot Utility Slot Utility Slot Utility Slot 1 1 2 2 3 3 8 9 10 8 9 16 Drive 2 Drive 2 Drive 1 Drive 1 Gx10 Slot Map Gx16 Slot Map 97706346 Plasmon Gx Libraries SCSI Reference Manual 100 Utility slots are for library operation only not for customer media storage Mailslot Mailslot Utility Slot Utility Slot 1 2 3 Utility Slot Utility Slot 1 2 3 30 31 32 Drive 2 Drive 2 D
128. um changer device will be Not Ready for 5 seconds after this option is selected to allow time for SCSI initiator devices to poll the changer device sense the Not Ready state and stop SCSI activity to the drive being turned off 9 3 Unit Attention Condition The medium changer device returns CHECK CONDITION status in response to SCSI commands other than Inquiry when one or more conditions indicating a change in state of the library system has occurred A subsequent Request Sense command issued to the medium changer device yields return data containing a Sense Key of 6h Unit Attention This does not indicate a problem with the particular command that was issued but rather a normal or abnormal change in the state of the library system This change may signal a failure or require that a different sequence of commands be issued to the changer device In some cases no action is required at all other than reissuing the original command The events triggering Unit Attention condition in the library system are as follows e The initial application of power to the library system or a bus or device reset e A change to one or more of the library system settings via the front panel Set Up Library Turn Drive Off or Turn Drive On selections or a Mode Select command from a host e A change to one or more of the log values via the front panel Set Up Library selection or a Log Select command from a host e A change in the libra
129. ure Robotic motion involving the lift motion faulted and was not recoverable 16 04 80 35 2D Flip failure Robotic motion involving the flip motion has faulted land was not recoverable 16 04 80 36 30 Swap picker failure Robotic motion involving the currently active picker has faulted and was not recoverable 16 04 80 43 33 IO station door is closed This fault would occur if the lO station is the source on a Move Medium or Exchange command and the IO station door is sensed to be closed This by inference means that a sensor in the IO station is bad The medium changer could still be used without IO station activity 47 04 80 49 36 Bar code reader not installed This error code is currently not used na 04 04 04 80 80 80 4A 4B 4E 28 38 39 Bar code reader hardware failure This error indicates that a barcode reader is enabled lout is not responding which indicates a hardware error Bar code read fail This error indicates that robotic motion failed while Drive not responding This error does not occur in functional mode It is only reported if the library software attempts to send 18 16 19 attempting to position and read a barcode label data command to a drive that is not installed The library temperature sensor has reached a warning level This may be due to environmental con
130. ve safe operating temperature for drive operation Drv 1 4 Disc equals 1 if the interface cable to the corresponding drive is not properly connected LastMT contains the number of the last medium transport element used 1 or 2 MT ASide contains the side of the MTA currently up 0 or 1 FanR equals 0 if the rear fan s have a fault The field is 1 otherwise FanF equals 0 if the front fan s have a fault The field is 1 otherwise PsGood equals 0 if the POWER_GOOD signal from the power supply indicates a fault The field is 1 otherwise The POWER_GOOD signal indicates that all voltages from the supply are above their minimum requirements PsVolt equals O if either the 24V or 12V supply is out of tolerance The field is 1 otherwise The Cumulative Lift Movement Count is incremented every time the medium transport element is moved vertically up or down The Cumulative Picker Movement Counts Pickers 1 2 are incremented every time the corresponding medium transport element is moved horizontally in or out The Cumulative Change of Picker in Use Count is incremented every time the picker in use is changed An Exchange Medium command for example typically requires three changes of picker The Cumulative Pivot Movement Count is incremented every time the lift assembly is pivoted to reach another column of slots or drives or the IO station The Cumulative IO station Open Count is incremented every time the IO station is opened The Cumula
131. y the last command and continue with operation 23 Log the medium changer sense and retry the command If the fault repeats then issue a Rezero Unit command with the RecalOffs bit 1 to cause the medium changer to recalibrate Retry the original command If the error is persistent then display a message indicating that a hardware failure has occurred and to call for service 24 Log the medium changer sense Use the Mode Select command Drive Assignments Page to first power off the drive and then after a few seconds to power on the drive again Wait a few seconds before issuing a Test Unit Ready to the drive to check for ready status Then retry the command If the error is persistent then display a message indicating that a hardware failure has occurred and to call for service 25 Issue a Bus Device Reset This will reset the library main controller Clear any subsequent Unit Attentions Then retry the command If the error is persistent then display a message indicating that a hardware failure has occurred and to call for service 26 27 Log the medium changer sense Issue an Initialize Element Status IES command to update the element status Issue Read Element Status commands to re inventory the medium changer Display a message indicating that a piece of media has been exported to the IO station and that this volume should most likely be re imported to the medium changer Issue Mode Sense if desired to obtain mod

- Plasmon

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