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X4 – Single/Dual Controller Installation and Hardware

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1. DT lt OVERVIEW ecc EUR A 5 1 1 About Subsystem Maintenance esee 5 1 2 General Notes on Component Replacement 5 2 REPLACING CONTROLLER MODULE COMPONENTS nentes 5 2 1 Controller Module Maintenance Overview esee 3 2 2 Removing the Controller Module 5 2 3 Installing a Replacement Controller eee 5 3 DIMM MODULE REPLACEMENT erue eene 5 3 1 DIMM Module Considerations esee 2 3 2 DIMM Module Upgrade Replacement Procedure see 5 8 5 4 REPLACING A FAULTY BBU eere nennen netten nnt 5 9 5 4 1 Replacement Procedure eese eene tette tenente nnne 5 11 5 5 REPLACING AN I O MODULE eere nnne nnne ennnen ennnen 5 13 5 6 REPLACING A FAULTY PSU 5 6 1 aa ee A he 5 7 COOLING MODULE MAINTENANCE ennt ennnen ennnen nian 5 19 5 7 1 Notes on Cooling Module Maintenance eese 9 7 2 Replacing a Cooling Module 5 8 REPLACING A FAILED HARD DRIVE ee eeesre ee enne nennen nnn nnnn ennnen en 5 8 1 Hard Drive Maintenance eene nennen nente nne 5 8 2 Replacing a Hard Drive socrii aenn n APPENDIX A SPECIFICATIONS 1 TECHNICAL SPECIFICATIONS ssscccesseeceesssceens
2. LED light pipe IFT 9273CHandR Right side forearm handle for X4 3U series subsystems IFT 9273CHandLLCD Left side forearm handle for X4 3U series subsystems LCD panel included IFT 9273ECPSU Power supply module for X4 3U series ASIC400 series subsystems 530W capacity IFT 9273ECFanMod Cooling fan module for X4 ASIC400 and 3U profile series subsystems IFT 9273CF4HIO2L Host I O module CHO on the left two SFP ports IFT 9273CF4HIO2R Host I O module CH1 on the right two SFP ports IFT 9273F4DIO4L Host amp Drive I O module CH2 and CH4 on the left four SFP ports for 6 channel models IFT 9273F4DIO4R Host amp Drive I O module CH3 and CH5 on right four SFP ports for 6 channel models B 1 X4 Installation and Hardware Reference Manual IFT 9273F4HIO2L Drive I O module CH2 on the left two SFP ports for 4 channel models IFT 9273F4HIO2R Drive I O module CH3 on the right two SFP ports for 4 channel models IFT DDRESCM5 512MB DDR RAM DIMM module for ASICA00 platform IFT DDRESCMA 1GB DDR RAM DIMM module for ASIC400 platform IFT DDRESCMB 2GB DDR RAM DIMM module for ASIC400 platform B 2 Accessories Table B 1 Spare Parts Accessories that came with the subsystem are listed in Table B 2 Model Name Description IFT 9011 Null modem DB9 female to DB9 male wires swapped IFT 9270ASC
3. System Monitoring Overview Chapter 4 Subsystem Operation and Monitoring 4 2 Status indicating LEDs 4 2 1 LED Overview FRUs Field Replaceable Units have status indicating LEDs that reflect the operational status and integrity The list in Table 4 1 shows the number of LEDs that reside on each component Component LEDs per Total LEDs Definition Module LCD Keypad 3 3 See Section 4 2 2 Panel Drive Trays 2 32 See Section 4 2 3 Controller 14 or 7 single Modules See Section 4 2 4 controller Fibre Port 2 24 or 16 See Section 4 2 4 2 Ethernet Port 2 4or2 See Section 4 2 4 4 BBU 1 2 or See Section 4 2 5 PSU 1 2 See Section 4 2 6 Cooling Module 2 4 See Section 4 2 7 Table 4 1 LED Distribution LED definitions are given in the following sections 4 2 2 LCD Keypad Panel The LCD keypad as shown in Figure 4 1 consists of five 5 function keys three 3 LEDs and a 16 character x 2 rows LCD screen that provides access to firmware embedded utility Press the ENT button for two 2 seconds on the initial screen to enter the main menu Press the ESC button to clear the current event Function Keys Press the UP and DOWN arrow keys to select viewing items In the last of the main menu items View and Edit Event Logs the most recent event is displayed first Status indicating LEDs 4 3 X4 Installation and Hardware Reference Manual Mute Button The MUTE button sil
4. PSUs Hard disk drives NOTE Instructions on how to replace these hot swappable components are given in Chapter 5 Normalized Airflow Proper subsystem cooling is referred to as normalized airflow Normalized airflow ensures the sufficient cooling of the subsystem and is only attained when all components are properly installed Therefore a failed component should only be removed when a replacement is available If a failed component is removed without a replacement disruptions to airflow will result causing the subsystem to quickly overheat 1 25 X4 RAID Subsystem Installation and Hardware Reference Manual This page is intentionally left blank 1 26 Hot swappable Components 2 1 2 1 Introduction Chapter 2 Hardware Installation Introduction This chapter gives detailed instructions on how to install the hard disk drives and drive trays into the subsystem Installation into a rack or cabinet should occur before the hard drives or drive trays are installed into the subsystem Please confirm that you received all of the components listed on a printed copy of the Unpacking List in the shipping package before proceeding with the installation process A CAUTION Please note that the installation instructions described in this manual should be carefully followed to prevent any difficulties and damages to your system Installation Prerequisites 1 Static free installation environ
5. Al WARNING Do not remove a failed component from the subsystem until you have a replacement on hand If you remove a failed component without replacing it the internal airflow will be disrupted and the system will overheat causing damage to the subsystem All of the following components can be replaced in case of failure 1 Overview RAID controller modules Section 5 2 Memory modules Section 5 3 BBU Section 5 4 Host I O modules Section 5 5 PSUs Section 5 6 Cooling modules Section 5 7 Hard drives and drive trays Section 5 8 5 1 X4 Installation and Hardware Reference Manual 2 NOTE The graphics used in the following sections are only showing X4 6 channel subsystem You may follow the same maintenance procedures to work on an X4 subsystem 5 1 2 General Notes on Component Replacement f Almost all of the major components on the X4 including the redundant controller modules in X4 PSUs cooling modules I O modules and disk drives are hot swappable and can be replaced online Qualified engineers who are familiar with the X4 subsystems and RAID storage technologies should be the only ones who make component replacements If you are not familiar with the X4 series or with RAID subsystem maintenance in general it is strongly advised that you refer system maintenance to a suitably qualified engineer Normalized airflow depends upon the presence of all subsyst
6. C 6 ETHERNET PORT PINOUTS m C 7 POWER CONNECTORS DR 44 EA NN NN Ra dana SAFETY PRECAUTIONS de eC ip ace Dn Radon ek Precautions and Instructions viii X4 RAID Subsystem Installation and Hardware Reference Manual ESD i PRECAUTIONS 3 sii X P Xen Auria X REVISION HISTORY C cn con EE x WHO SHOULD READ THIS MANUAL cccsccssseesseessseenssneesscceaeeeesseesseesssesuueeesensessseesseaneas XI R lated Documehtation oeste er erratis deste RH E CONVENTIONS Naming nxi E EEI E EAE E E xi Safety Precautions Precautions and Instructions f f Prior to powering on the subsystem ensure that the correct power range is being used If it is necessary to transport the subsystem repackage all disk drives separately Shipping the subsystem with installed hard drives will damage the backplane connectors The X4 subsystem comes with sixteen 16 drive bays Leaving any of these drive bays empty will seriously affect the efficiency of the airflow within the enclosure and will consequently lead to the system overheating which can cause irreparable damage If a module fails leave it in place until you have a replacement unit and you are ready to replace it Airflow Considerati
7. Drive Hot swap Yes twi h transparent reset of non responsive drives Controller Hot swap Yes Architectural Specifications CPU 64 bit 800MHz PowerPC 750GL DIMM Slot One 184 pin DDR DIMM socket ASIC RAID 64 bit chipset ASIC400 Flash ROM 64Mbit 8MB NVRAM 128Mbit with RTC with embedded RAIDWatch di Hardware XOR Yes Real time Clock For event messages with time record and task scheduling A 3 Drive Tray Specifications Specifications Height 28 3mm 1 1 inches Width 110 1mm 4 33 inches Depth 218 6mm 8 62 inches Bezel lock Yes A 4 Power Supply Specifications Specifications Nominal Power 530W with active PFC DC Output 12 0V 32A Max 5 0V 32A Max 3 3V 30A Max Drive Tray Specifications A 3 X4 Installation and Hardware Reference Manual Input Frequency 47 to 63Hz Input Voltage 100VAC 9A or 240VAC 4 5A with PFC Power Factor A Yes Correction Atl e st 20ms at 115 230VAC full load after a Holdup qune loss of AC input Through backplane to RAID controller s Auto shutdown when losing cooling or eledvat Over temperature ambient temperature over voltage protect is Protection also available No fans specific for PSU heated air is drawn by Cooling Fans the cooling fan module fixed in the rear section of PSU
8. See Figure 1 22 Each module provides two 2 SFP sockets that receive 4Gbps optical transceivers The Fibre Channel host ports receive 4 25 2 125GBd SFP LC duplex type transceivers and then connect to LC type cables You can order the SFP tranceivers from your subsystem vendor P N IFT 9270CSFP4GA01 These SFP tranceivers have been selected and tested to provide the necessary reliability and performance All host connection modules come with bypass circuits so that host ports can be routed to both controllers The bypass circuits ensure loop integrity and allow you to configure redundant data paths to the host computers without expensive FC switches in a DAS application For configurations involving multiple data paths you may connect host links through external FC switches or enable the onboard hub for direct connections For details of these options please refer to Chapter 4 Two 2 LEDs come with each SFP port to indicate link and speed statuses These modules are hot swappable X4 RAID Subsystem Installation and Hardware Reference Manual 1 2 8 Drive Host Expansion I O Modules Cut through switch board FC Ports Handle Figure 1 23 I O Expansion Board PN IFT 9273F4DIO4L 6 channel models left side module CH2 amp CH4 PN IFT 9273F4DIO4R 6 channel models right side module CH3 amp CH5 PN IFT 9273F4DIO2L 4 channel models left side module CH2 PN IFT 9273F4DIO2R 4 channel models right
9. associated with which host ID LUN and it is necessary to restore host ID LUN mapping after firmware default restoration in order to access data on the previously configured arrays 2 Some of the latest firmware updates may be incompatible with the firmware currently running on your subsystem These updates may require restoring firmware defaults before firmware upgrade can actually take place Before using the button it is highly advised to practice the following f Stop host I Os f Backup your data f Make a lis of host ID LUN mapping information for future references f Itis also recommended to keep a record of all configuration parameters such as performance preferences specific stripe sizes etc 3 The no 3 condition that requires restoring defaults is when an administrator forgets the password configured to control the access to a RAID subsystem Before pushing this button also practice the steps listed above You can access array information even without a password How to use the button After the subsystem is powered down you can use a straighten paper clip to press the button Press and hold the button down power on the subsystem and wait for the associated LED and the subsystem Ready LED to light up The Restore Def LED indicates successful restoration of firmware defaults With redundant RAID controllers the procedure can be tricky e e J Step 1 Remove one controller from the subsystem
10. disk drive failure can be corrected online Handles If the failed drive is behind either the left or right side forearm handle unfold the handles to access the drive trays Open flap Once the front flap on the drive tray has been opened the drive tray must be removed from the subsystem Failure to remove the drive tray from the subsystem after the front flap has been opened may cause data errors Slowly remove a disk drive When removing a drive tray from the subsystem pull the drive tray out only about one inch and then wait for at least 30 seconds for the hard drive motor to spin down before taking it out completely Any impact to the hard drive while the drive motor is spinning can damage the hard drive There are situations that healthy drives can be removed In operations such as Copying amp Replacing member drives with drives of larger capacity you may need the replaced disk drives in other installations Keep a replacement on hand If a hard drive has failed make sure you have a replacement hard drive readily available before removing the failed drive from the subsystem Do not leave the tray slot open for an extended period of time or the normalized airflow will be disrupted and subsystem components will overheat and may become permanently damaged Replacing a Hard Drive To replace a hard drive please follow these steps Al WARNING Hard drives are fragile therefore always handle them with extreme care f Do
11. power down and then power on with the Restore Def button depressed to restore the firmware defaults on the remaining controller 7 Step 2 Power down install the controller previously removed and repeat the restoration process e T Step 3 When completed with restoring defaults on both controllers install both controllers and power on X4 RAID Subsystem Installation and Hardware Reference Manual 1 2 3 2 DIMM Module 1 2 4 Each controller board comes with a DDR RAM DIMM module The 184 DDR RAM DIMM socket comes with a pre installed DDR cache memory with the capacities from 512MB to 2GB The DIMM module is mounted on the controller board You need to remove the controller from chassis in order to replace upgrade a DIMM module Use DIMM modules of the same size speed and the same chips in a dual controller configuration BBU E prs Retention Screws Figure 1 19 BBU PN IFT 9273CBTE The Li Ion BBU module a shown above can sustain cached data for days during a power failure The use of a BBU is highly recommended in order to ensure data integrity If power outage occurs the BBU supplies power to sustain the unfinished writes cached in memory The BBU module is hot swappable New Feature The battery cell packs come with an EEPROM to record the date of installation and other service data and when the approximate one year life expectancy is reached by checking against the
12. 10 3 42 Expansion Links 1d stetit tete ener iet iet a i R 3 12 3 5 POWER ON eden A Levi game a oen 3 5 1 Check List iue 3 32 Power On Procedure ese eee ee eerte ee nene nter NEE 3 2 3 Power On Status Che Ka uu eta t t e eer eh E et 3 5 4 LCD Screen eese 3 6 PowER OFF PROCEDURE CHAPTER 4 SYSTEM MONITORING 4 1 SYSTEM MONITORING OVERVIEW ssscccesseesessseceenseesenseeeeensceeenseaeeensseeeneeaes 4 1 4 2 STATUS INDICATING LEDS ss ccssssecesseesesseeceensceeesseeeeenscaeensaaeeenssaeennsseees 4 3 4 2 1 LED OVerWeW WLR RTE Ih Sees 4 2 2 LCD Keypad Panel 4 2 3 DIVE TT AW DED Ss 4 4 4 2 4 Controller Module LEDSs aet eee ree e ERE 4 5 4 2 4 1 Controller Status LEDs 4 6 4 2 4 2 Fibr Port ED seo ER ROE REISE 4 6 4 2 4 3 Restore Default EBD c eedem depo n eie vo EO Eder 4 7 4 2 4 4 Ethernet Port l EDS 42 ient ed eere 4 7 X4 RAID Subsystem Installation and Hardware Reference Manual 4 2 5 BBU TED e RERO RENDER UR 4 8 4 2 6 PSU LEDS I 4 8 4 2 7 Cooling Module LEDs poe E E ey estes ED RO ee 4 9 4 2 8 Default Threshold Values 4 10 4 3 AUDIBLE ALARM m 4 10 4 3 1 Failed Devices 5e des 4 11 AA 1 MONITORING oon eee citati rto eaten 4 11 CHAPTER 5 SYSTEM MAINTENANCE
13. Avoid touching the exposed circuitry on PCB boards and connector pins 2 3 General Installation Procedure Following all the instructions provided below can minimize subsystem installation time Detailed illustrated instructions for each component are given in the following sections General Installation Procedure 2 3 X4 Installation and Hardware Reference Manual 2 4 2 3 1 A CAUTION To ensure that your system is correctly installed please follow the steps outlined below If you follow these steps installation will be fast and efficient If you do not follow these steps you may accidentally install the hardware incorrectly 1 Unpack Unpack the subsystem and confirm that all the components on the list have been included See Section 2 3 2 Rack Cabinet installation If the subsystem is going to be installed in a rack or cabinet it should be installed prior to installing the hard drives Installing the subsystem into a rack or cabinet requires at least two 2 people See Section 0 3 Install hard drives Separately purchased Fibre hard drives must be individually installed into the drive trays See Section 2 7 4 Install drive trays After the hard drives have been installed into the drive trays the drive trays must be installed into the enclosure itself See Section 2 8 5 Cable connection Use the power cables that came with the subsystem to connect the subsystem to the main power source Use the provided
14. Drive Tray 09 Step 5 Remove four 4 retention screws that secure the hard drive from the sides of the drive tray two on each side See Figure 5 25 Hard Drive Drive Tray Figure 5 25 Removing the Hard Drive ic Step 6 Install the replacement drive Please refer to the complete hard drive installation procedures in Section 2 6 i Step7 Re install the drive tray back to the subsystem Refer to Section 2 7 5 24 Replacing a Failed Hard Drive 1 Appendix Specifications Technical Specifications Environmental Specifications Operating 5 to 95 non condensing Humidity Non operating 5 to 95 non condensing Operating 0 to 40 C 32 F to 104 F 35 C if BBU is applied Temperature Non operating 40 to 60 C 40 to 149 F With BBU 0 to 35 C 32 F to 95 F Altitude Operating Sea level to 3660m 12 000 ft Non operating Sea level to 12 192m 40 000 ft Power Requirements 100VAC 9A Input Voltage 240V AC 4 5A with PFC auto switching Frequency 47 to 63Hz Power Consumption 530W Dimensions With Forearm Handles Without Forearm Not including rear end Handles protrusions e g levers Height 131mm 5 2 inches 130mm 5 1 inches Width 482 6mm 19 inches 445mm 17 5 inches Length 504 3mm 19 8 inches 488 2mm 19 2 inches Technical Specifications A 1 X4 Installation an
15. RAIDWatch Man g er session or terminal emulation A 7 Fault Management Specifications Yes with user configurable Drive S M A R T Support detect only clone and replace and perpetual clone functions Battery Back up Option Yes life expectancy and charge teveraware Host Link Multipathing Yes via EonPath drivers Sensors and module presence detection Yes through an I C serial bus Automatic Drive Failure Detection Yes Automatic Rebuild on Spare Drives Yes Regenerate Logical Drive Parity Yes Bad Block Reassignment Yes Automatic Rebuild upon Failed Drive Yes Replacement Manual Clone of Suspected Failed Drive Yes Concurrent Rebuild on Multiple Drives in a RAID 0 1 Logical Drive Yes Salvage the 2 Temporary Failed Drive in a RAID 1 3 5 or 6 Logical Drive ids Salvage the 1 Temporary Failed Drive Yes in a RAID 0 Logical Drive Fault Management A 5 X4 Installation and Hardware Reference Manual This page is intentionally left blank A 6 Fault Management Appendix Spare Parts and Accessories B 1 Spare Parts Spare Parts Model Name Description IFT 83F40REC6 4G FC to 4G FC RAID controller module 6 channel version ASIC400 architecture RAID 6 IFT 83F40RE4C4 4G FC to 4G FC RAID controller module 4 channel version ASIC400 architecture RAID 6 IFT 9273CDTray Drive tray Type III bezel and
16. array Slot 1 Slot 3 Slot 4 Slot 5 Slot 7 Slot 8 Slot 9 Slot 10 Slot 11 Slot 12 Slot 13 Slot 14 Slot 15 Slot 16 Figure 1 16 Drive Bay Numbering Sequence 1 13 X4 RAID Subsystem Installation and Hardware Reference Manual 1 2 3 The RAID Controller Module Main board BBU Figure 1 17 RAID Controller Module PN IFT 83F40REC6 for 6 channel models amp IFT 83F40REC4 for 4 channel models The RAID controller module contains a main circuit board a rear facing faceplate and a DIMM socket for DDR cache memory The default size of cache memory is 512MB See Figure 1 17 The controller contains no user serviceable components Except when installing upgrading the cache memory inside the controller module should never be removed or opened VA WARNING Although the RAID controller can be removed the only time you should touch the controller itself is to install upgrade the memory module The RAID controller is built of sensitive components and unnecessary tampering can damage the controller FC speed detection Host side The subsystem supports host side connection either at 4Gb s or 2Gb s speed There is a DIP switch that can be used to change the channel speed on the rear panel Drive side The subsystem supports either 2Gb s or 4Gb s Fibre Channel disk drives There is a DIP switch that can be used to change the channel speed on the rear panel A CAUTION f Do not mix 4Gb and 2Gb d
17. cords provided in the package connect both power sockets on the subsystem rear panel to the main power source f Power on using the two 2 power switches on See Figure 3 16 Each switch controls a single PSU therefore make sure that both switches are turned on Power switch Power switch Power socket Power socket Figure 3 16 Power Sockets and Power Switches A CAUTION Although the PSUs come in a fault tolerant pair and a single PSU can provide sufficient power to the system it is advisable to turn on both of the PSUs If only one 1 PSU is operating and that PSU fails system down time will occur t Step 4 Power on the application servers host computers The application servers should be the last devices that are turned on Please refer to related documentation for their power on procedures 3 19 X4 Installation and Hardware Reference Manual Power On Status Check Once the subsystem has been powered on all aspects of its operating statuses should be carefully observed to ensure that everything is running smoothly and that there are no complications or malfunctions 1 Controller module LEDs The Controller Ready Host Busy and Drive Busy LEDs should all flash green during or after the initialization process Drive tray LEDs The green LEDs for all populated drive trays should light constant blue after the initialization process LCD panel LEDs The blue Ready LED on the LCD keypa
18. drive channels ur HE cH o CH2 CH3 0 d Switch setting Te Al Om m ry p t y ir e EN 2 5 HENe HE LJ Up to 6 SBODs e Ll Figure 3 14 Single controller X4 with Fault tolerant Expansion Links Sample Topologies Chapter 3 Subsystem Connection SBOD Expansion with Straight through Links You may also connect your expansion SBODs using the straight through links from one SBOD to the next The drawback of this connection method is that if one of the expansion enclosure fails except the last one data paths to the following enclosures will also fail Enclosure ID gt d Figure 3 15 SBOD Expansion with the Straight through Links Sample Topologies 3 17 X4 Installation and Hardware Reference Manual 3 5 Power On Once all of the components have been installed in the subsystem and the host or drive links have been adequately connected the subsystem can be powered on Check List BEFORE powering on the subsystem please check the following o Memory module Memory modules have been correctly installed on the controller boards Make sure BBUs have been installed correctly Hard drives Hard drives have been correctly installed in the drive trays Drive trays All the drive trays whether or not they contain a hard drive have been installed into the subsystem DIP switch settings the appropria
19. ensure the ease of the subsystem maintenance Product Overview 1 1 X4 RAID Subsystem Installation and Hardware Reference Manual 1 1 2 Model Variations Four 4 X4 models are available These models are listed in the table below Table 1 1 X4 Model Variations Model Host Channels Drive Channels Host Drive Controller Configurable fixed X4 Dual 2x4GFC 2x4GFC 2x4GFC Redundant X4 Single 2x4GFC 2x4GFC 2x4GFC Single X4 Dual 2x4GFC 2x4GFC N A Redundant X4 Single 2x4GFC 2x4GFC N A Single 1 1 3 Enclosure Chassis 1 2 1 1 3 1 Chassis Overview The X4 RAID storage subsystem is housed in a compact steel 3U chassis divided into front and rear sections which are respectively accessed through the front and rear panels An interior aluminum framework enables evenly dispersed heat and efficient dissipation RAID s 3U rackmount brackets are available as separately purchased accessories Please see Figure 1 3 and Figure 1 4 for the components locations in the subsystem and read the following sections for details about components and modules Product Overview Chapter 1 Introduction Figure 1 2 Subsystem Modules Table 1 2 Rear Panel Modules CHO I O module PSU Cooling module I O module CH3 CH5 I O module Li Ion BBU RAID controllers in fault tolerant dual active configuration CH2 CH4 I O module X4 RAID Subsystem
20. i normal operation Receiver Ground common with Transmitter 9 VEER Ground Receiver Ground common with Transmitter 10 VEER Ground Receiver Ground common with Transmitter 11 VEER Ground 12 RD Receiver Inverted DATA AC coupled 13 RD Receiver Non inverted DATA out AC coupled 1 Receiver Ground with Transmitter Veer Ground 15 Receiver Power Supply 16 Vccr Transmitter Power Supply Transmitter Ground common with Receiver 17 Veer Ground Transmitter Non inverted DATA in 100 ohm 18 TD termination between TD and TD AC coupled thereafter 19 TD Transmitter Inverted DATA in See TD Transmitter Ground common with Receiver 20 VEET Ground Table C 1 4G FC Port Pinout Definitions COM1 Serial Port Cable COMI Cable This cable connects between COMI serial port on the controller module to the serial port of a management computer The serial port s defaults and requirements are 1 Setat 38400 baud 8 bit 1 stop bit and no parity 2 In most cases connecting RD TD and SG is enough to establish communications with a terminal PN IFT 9270ASCab COMI Serial Port Cable Appendix Pinouts Figure C 2 Adapter Cable for COM1 Connector Pinouts CN1 Pin Number Pin Name 1 Ground TXD RXD CN2 Pin Number Pin Name NC RXD TXD DTR Shorted GND DSR Shorted RTS Shorted CTS Shorted NC DD MY BY
21. ideal for capacity expansion over 4Gb s Fibre Channel links and supports in band SES enclosure service 4 CH2 and CH3 ports are actually the extension points of the dual loop across the sixteen drives within chassis Configuration Options 3 5 X4 Installation and Hardware Reference Manual 3 3 3 Changing the Channel Mode For 6 channel model CH4 and CH5 channel mode be altered through firmware s configuration utilities By factory default CH4 and CH5 are host channels and can be changed to operate in the drive mode The firmware options can be accessed either through a hyper terminal session or the RAIDWatch management software Via Hyper Terminal 7 Step 1 Select View and Edit Channels from Hyper Terminal Main Menu and then find a channel that you wish to change its mode t Step 2 Press ENTER on the channel and use the arrow keys to find the Channel Mode option e t Step 3 Press ENTER on the Channel Mode option to display a list of available modes LN t Step 4 Choose a desired channel mode then press ENTER A dialog box will appear asking you to confirm the change es t Step 5 Press ENTER to confirm a selection 1D Defsynclk cursynclk and edit scsi Id P F chip information 1 serial channel host id wwn Eu device port name list 9 serial F serial rate ea los Al F Autojser EE Change Mode to Drive Ch
22. real time clock system administrators will be notified for replacing the BBU In accordance with international transportation regulations the BBU is only charged to between 3546 and 45 of its total capacity when shipped After powering on the subsystem see Section 4 1 the BBU will automatically start charging its battery cells It usually requires approximately twelve 12 hours for the battery to be fully charged If the battery is not fully charged after twelve 12 hours a problem might have occurred with the BBU and you should contact your subsystem vendor for a replacement Re installing the BBU may sometimes correct the fault if System Components Chapter 1 Introduction BBU charger has overheated and forced the charging process to halt many times during the charging process If the overheating conditions occurred during the process the actual charge time will extend the expected charge time While charging the battery the LED on the BBU will flash slowly You can check battery charge using the RAIDWatch management software or firmware configuration utility A WARNING The BBU is hot swappable itself however when the controller module is removed from the subsystem the BBU is also removed Do not remove the controller module unless it becomes absolutely necessary 1 2 5 PSUs Power Switch Power Socket Handle Retention Screw Figure 1 20 PSU PN IFT 9273ECPSU The X4 series subsystem is equipped w
23. side module CH3 The two 2 drive loop extension modules provide the connectivity to expansion FC SBODs either through the extension ports CH2 amp CH3 and or additional channels CH4 amp CH5 that are manually assigned as drive loops NOTE f The two channel pairs are intentionally separated on two I O modules CH2 and CH4 reside on one module CH3 and CH5 on another The intention of this cross module routing is to avoid the chance of link failure if an entire I O module should fail Drive Host Expansion I O Modules peeenETL 1 n i CHONCH2 CH4 CH3 CHS CH1 fu poo EL Helig Host Connection Modules f These modules are secured to the chassis by retention screws Each module has four 4 SFP ports 4Gbps SFP transceivers should be separately purchased 1 22 System Components 1 3 1 3 1 1 3 2 Chapter 1 Introduction f Unlike previous Fibre to Fibre models I O modules do not provide configuration jumpers f drive channels come with loop switch circuits to maintain loop integrity in the event of cable link of drive failure The loop switch circuits ensure loop integrity and also allow you to configure redundant data paths for maximum protection f Two 2 LEDs per FC port indicate each port s connection status These modules are hot swappable System Monitoring The X4 subsystem comes with a number of different monitoring methods that provide you with continual up
24. single controller model A similar Y cable that features two audio jacks is shipped with dual controller models PN IFT 9270AYCab The two 2 audio jacks of the Y cable connects the COMI ports on partner RAID controllers so that a management session will not be disrupted during controller failover failback The COM2 serial port connects to the serial ports on UPS Uninterruptible Power Supply devices An optional audio jack to DB 9 cable PN IFT 9270CUPSCab or a similar Y cable PN IFT 1 15 X4 RAID Subsystem Installation and Hardware Reference Manual 9270CUPS YCab is available as an optional accessory Please refer to Appendix E for more information about UPS connection f Ethernet port controllers come with a 10 100BaseT Ethernet port for local remote management through LAN WAN When operating in the dual active mode system configuration is handled through the Primary usually controller A controller the event of single controller failure the Ethernet port on the surviving controller inherits the pre configured IP if a static IP has been assigned instead of DHCP and continues the monitoring or configuration service e TIPS Connect both Ethernet ports if you are using a dual controller X4 to the Ethernet ports of your network switch The Ethernet port on a secondary controller usually the controller at the lower position will stay idle until the occurrence of primary controller failure Shielded c
25. statements of non sequential facts They can be read in any order Each statement is preceded by a black square m or black dot Numbered Lists Numbered lists are used to describe sequential steps you should follow in order Important information that users should be aware of is indicated with the following icons These messages inform the reader of essential but non critical S information These messages should be read carefully as any directions or instructions contained therein can help you avoid making mistakes A CAUTION Cautionary messages should also be heeded to help you reduce the chance of losing data or damaging the system 9 X4 RAID Subsystem Installation and Hardware Reference Manual The Important messages pertain to use the X4 subsystem introduced in this manual A WARNING Warnings appear where overlooked details may cause damage to the equipment or result in personal injury Warnings should be taken seriously Software and Firmware Updates Please contact RAID at 800 330 7335 for the latest information regarding software and firmware upgrades NOTE The firmware version installed on your system should provide the complete functionality listed in the specification sheet user s manual We provide special revisions for various application purposes Therefore DO NOT upgrade your firmware unless you fully understand what a firmware revision w
26. taking all the necessary steps that will result in our compliance with the new European directive RoHS 2002 95 EC on or before the specific dates set forth in those applicable laws and regulations RAID is applying its own internal efforts and expertise and is working closely with customers and suppliers to achieve compliance while maintaining an uninterrupted supply of quality products RAID is currently investigating evaluating and qualifying our materials and components to ensure that products sold on or after 1 July 2006 in such territory are in compliance with the above regulations Disposal of Old Electrical amp Electronic Equipment Applicable in the European Union and other European countries with separate collection systems This symbol on the product or on its packaging indicates that this product shall not be treated as household waste Instead it shall be handed over to the applicable collection point for the recycling of electrical and electronic equipment By proper waste handling of this product you ensure that it has no negative consequences for the environment and human health which could otherwise be caused if this product is thrown into the garbage bin The recycling of materials will help to conserve natural resources For more details about recycling of this product please contact your local city office your household waste disposal service or the shop where you purchased the product Table of Contents CONT
27. the module s metal frame faceplate only Avoid touching the PCB boards and connector pins 7 None of the covers or replaceable modules should be removed in order to maintain compliance with safety emission or thermal requirements 8 Always secure every enclosure module by its retaining screws or make sure it is held in place by its latches 9 Always make sure the subsystem has a safe electrical earth connection via power cords or chassis ground by the rack cabinet 10 Be sure that the rack cabinet into which the subsystem chassis is to be installed provides sufficient ventilation channels and airflow circulation around the subsystem 11 Provide a soft clean surface to place your enclosure on before working on it Servicing the enclosure on a rough surface may damage the finish of the chassis 12 When working with the subsystem it is important to use tools with extreme care Do not place tools or other items on top of the enclosure to help avoid damaging the outward appearance of the chassis 2 2 2 Static free Installation Static electricity can damage the system s electronic components To prevent ESD damage to any of the components follow these precautions before touching or handling them f Discharge the static electricity accumulated in your body by wearing an anti static wristband f Avoid carpets plastic vinyl and Styrofoam in your work area f Handle all components by holding their edges or metal frames
28. the instruction manual may cause harmful interference to radio communications Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense Any changes or modifications not expressly approved by the party responsible for compliance could void the user s authority to operate the equipment X4 RAID Subsystem Installation and Hardware Reference Manual WARNING A shielded power cord is required in order to meet FCC emission limits and also to prevent interference to nearby radio and television reception Use only shielded cables to connect I O devices to this equipment You are cautioned that changes or modifications not expressly approved by the party responsible for compliance could void your authority to operate the equipment This device is in conformity with the EMC Certified Worldwide This device meets the requirements of the CB standard for electrical equipment with regard to establishing a satisfactory level of safety for persons using the device and for the area surrounding the apparatus This standard covers only safety aspects of the above apparatus it does not cover other matters such as style or performance X4 RAID Subsystem Installation and Hardware Reference Manual Q This device is in conformity with UL standards for safety RAID is committed to being properly prepared and
29. to replace or upgrade a DIMM you may skip this section DIMM Module Considerations If the memory module on the controller module is going to be replaced the following issues must be considered when purchasing a replacement DIMM module f Purchasing considerations When purchasing a DDR RAM DIMM module to install on the X4 subsystem s controller board contact your subsystem vendor for an updated list of compatible DIMM modules IMPORTANT The DIMM modules applied in a dual controller configuration X4 R4031 must have the exactly SAME SIZE and SPEED f DDR RAM DIMM modules supported The RAID controllers in X4 subsystems support DDR RAM DIMM module with memory capacities ranging from 512MB to 2GB f Installation considerations When installing the DIMM module it is necessary to remove the controller module from the chassis and disperse the module The controller board is more susceptible to damage than the other components and must be handled with extreme care f Secure installation When replacing the DIMM module s make sure that the new DIMM module s are firmly in place prior to re installing the controller module s If the DIMM module s are not firmly in place the subsystem will not be able to run and the whole procedure must be repeated X4 Installation and Hardware Reference Manual 5 3 2 DIMM Module Upgrade Replacement Procedure If any of the DIMM modules fails or if the DIMM modules with a higher mem
30. 1 Figure C 5 Null Modem Pinouts Swap pin 2 and pin 3 Swap pin 4 and pin 6 Swap pin 7 and pin 8 Table C 5 Null Modem Pinouts IFT 9011 Null Modem C 5 X4 Installation and Hardware Reference Manual C 6 Ethernet Port Pinouts LINK ACTIVITY em Figure C 6 Ethernet Port Pinouts Pin Pin Name Pin Pin Name 1 LAN TXP 5 N2 2 LAN TXN 6 LAN RXN 3 LAN RXP 7 NI 4 N2 8 1 Table 6 Ethernet Port Pinouts C 7 Power Connectors IEC type receptacle C 6 Ethernet Port Pinouts
31. 2 5 Ss 1 2 6 Cooling Modules n rS ERR ERE RETE 1 20 12257 Host VO Modules ett ee tr bee ee eI CO ve er Eee 1 21 1 2 8 Drive Host Expansion I O Modules ims 1 3 SYSTEM MONITORING ersceeeeen eene n nena n nnn anas mna s nsus assa ennnen nnmnnn 1 3 1 EE EEE at care eine anni 1 23 1 3 2 LED Indicators ie vacanti RE SN RS 1 24 1 3 3 Firmware and RAIDWatch GUI 1 24 1 3 4 Audible Alarms a ERR ee tes 1 24 1 4 HOT SWAPPABLE COMPONENTS 1 25 1 4 1 Hot swWap Capabilities srce eee eene 1 25 1 4 2 Components ya 1 25 1 4 3 Normalized Airflow i ECRIRE RES TERR NO Ne EE A 1 25 CHAPTER 2 HARDWARE INSTALLATION 2 1 INTRODUCTION ec 2 1 2 2 INSTALLATION PREREQUISITES ennnen nennen ena n nennen nanenane nanne 2 1 2 9 SAFETY PRECAUTIONS canale ea eenia siaaa aa adada ddaa 2 2 2 341 Precautions and Instructions 2 2 2 3 2 Stalic free Installation e ERR RR HERR e tenis 2 3 2 4 GENERAL INSTALLATION PROCEDURE 2 3 2 4 1 Installation Procedure Flowchart 2 4 2 5 UNPACKING THE SUBSYSTEM eene anna nna aas a aas sn anra 2 5 2 6 INSTALLATION OVERVIEW enne nnn anas raa aaa ana 2 6 2 6 1 2 6 2 Components to
32. A 5 Cooling Module Specifications High or low rotation speed controlled by Speed fi s irmware s proactive mechanisms Max Air Flow each High speed 90CFM module Low speed 70 7CFM Input Power 13 2W max Input Current 1 1A max Rated Voltage DC 12V Operating 10 to 70 Storage 30 to 70 Noise 51dB high speed 46dB low speed Temperature A 6 RAID Management Specifications e Text based firmware embedded utility over RS 232C through the included serial cable Y Confi cable for the dual controller model LCD keypad panel e The RAIDWatch Manager program ng iusi n Performance m band or Ethernet connection Monitoring Remote Control and Monitoring Yes Event Yes via RAIDWatch sub module the Broadcast Alert Con f guration Client utility NPC or Embedded A 4 Cooling Module Specifications Appendix A Specifications browser based RAIDWatch Yes via RAIDWatch sub module the Event Notification Configuration Client utility NPC or E m edded browser based RAIDWatch Hardware Connection In band over Fiber out of band via Ethernet or RS 232C Configuration data stored on disks so that logical Configuration on drive configurations exist after controller Disk replacement basic settings e g channel mode settings are stored on NVRAM Faults are indicated via audible alarm module Failure Indicator LED indicators LCD panel
33. ACT INFORMATION seeccedectedeccdecdaadeaddssessssanceacnceoneceuteeces COPYRIGHT 2006 This Edition First Published 2006 Disclaitmer z iet Trademarks WARNINGS AND CERTIFICATIONS TABLE OF CONTENTS Ca uaa usan asi CHAPTER 1 INTRODUCTION vi 1 1 PRODUCT OVERVIEW 4 3 1 1 1 1 1 Product IntzOductl nz i 1 1 LTD Model VATIGHONS ctv teeth re pce 1 2 1 1 3 Enclosure CUGSSIS iae tete ett pete iste 1 2 1 1 3 1 Chassis OVERVIEW entes inepte i e REED 1 1 3 2 Physical Dimensions ae 1 1 3 3 Channels cts Goes ES LN eod tK LE es Sek Aa Ree R34 Port Assignients eb pd 1 1 3 5 Front Panel Overview 1 1 3 6 Rear Panel Overview ubere OE e n E EUER 1 2 SYSTEM COMPONENTS eere seeeee enne ense sanata nasa tasa 1 2 1 LCD Keypad Panel n eedem ee ure re 1 2 2 Drive Tray E 1 2 3 The RAID Controller Module esee eee 1 14 1 2 3 1 Controller Module Interfaces essen eene 1 15 1 2 3 2 DIMM Module 5 nitro eere etes rere epe tee 1 18 X4 RAID Subsystem Installation and Hardware Reference Manual 1 2 4 1
34. ARAID INCORPORATED X4 Single Dual Controller Fibre to Fibre RAID Subsystem Installation and Hardware Reference Manual Version 1 3 Apr 20 07 X4 RAID Subsystem Installation and Hardware Reference Manual Contact Information RAID Incorporated 5 Branch Street Methuen MA 01844 Phone 800 330 7335 Fax 978 683 6656 X4 RAID Subsystem Installation and Hardware Reference Manual Copyright 2007 This Edition First Published 2007 All rights reserved This publication may not be reproduced transmitted transcribed stored in a retrieval system or translated into any language or computer language in any form or by any means electronic mechanical magnetic optical chemical manual or otherwise without the prior written consent of RAID Inc Disclaimer RAID makes no representations or warranties with respect to the contents hereof and specifically disclaims any implied warranties of merchantability or fitness for any particular purpose Furthermore RAID reserves the right to revise this publication and to make changes from time to time in the content hereof without obligation to notify any person of such revisions or changes Product specifications are also subject to change without prior notice Trademarks RAID RAID logo and X4 are registered trademarks of RAID Inc PowerPC is a trademark of International Business Machines Corporation and Motorola Inc Solaris and Java are trademarks of Sun Microsyst
35. Drive mode B port controller A Table 3 1 Port Assignments in Different Configurations A CAUTION f If your configure CH4 and CH5 as drive loops it is recommended to enable their onboard hub f Without an activated onboard hub on and CHS you will need external FC switches for routing drive side connections Configuration Options 3 3 X4 Installation and Hardware Reference Manual 3 3 2 DIP Switches DIP Switch Setting Enclosure ID Switch Position SW ID 0 1 Drive Loop ID 4 En Dis CHO amp CH1 Hub en disable 5 4G 2G amp CH1 speed selector 6 En Dis CH4 amp CH5 Hub en disable 7 4G 2G CH4 amp CH5 speed selector 8 4G 2G cH2 amp CH3 speed selector Enclosure ID SW ID 12 3 Drive Loop ID istenclosure 0 0 0 0 15 2nd enclosure 1 0 0 16 31 3rd enclosure 0 1 0 32 47 4th enclosure 4 1 0 48 63 5th enclosure 0 0 1 64 79 6th enclosure lalola 80 95 7th enclosure lo 4 4 96 111 Figure 3 2 DIP Switch Configuration Options The DIP switches located on the upper left of enclosure rear panel allow you to manually configure the onboard hub AL PA IDs of the disk drives within chassis or the connection speed of the host or drive loops The Onboard Hub The onboard hub on each channel allows you to create fault tolerant connection points from the parallel SFP ports of each Fibre channel and without the use of expensive FC swit
36. Fibre cable to connect a host port to the host computer or an external device A CAUTION Fiber optical cables for connecting Fibre Channel devices must be handled with care They must not be bent and the routing path must be carefully planned to prevent emission interference within a rack system 6 Power up Once the components have been properly installed and all cables are properly connected you can power up the subsystem and configure the RAID array See Section 4 6 Installation Procedure Flowchart Figure 2 1 shows a flowchart of the installation procedure As you complete each step check off the Done box on the right Please use this flowchart in conjunction with the instructions that follow General Installation Procedure Chapter 2 Hardware Installation Unpack DONE Rack mounting DONE DIP switch setting optional C DONE 16 Hard drive installation DONE Drive tray installation C DONE Cabling C DONE Step7 Power up DONE Figure 2 1 Installation Procedure Flowchart 2 4 Unpacking the Subsystem Compare the Unpacking List against the actual packing contents to confirm that all required materials have been received Carefully check the items contained in each box before proceeding with installation A WARNING Do not rely on the non definitive summarized unpacking list shown below it is for reference only A detailed packing list can be found in your product shipping packag
37. Figure 4 2 Drive Tray LEDs Name Color Status FLASHING Flashing BLUE indicates the RAID controller is accessing the disk drive The drive is busy Blue Drive Busy ight Flashing LIGHT PURPLE indicates the Purple drive is in a spin up state The drive is not ready OFF indicates that there is no activity on the drive GREEN indicates that a drive is installed in Greeni the drive tray Power Status Red RED indicates that a drive has failed or is missing Table 4 3 Drive Tray LED Definitions 4 2 4 Controller Module LEDs The controller faceplate is shown in Figure 4 3 Nine 9 LEDs of different types are present and described in the following sub sections BBULED Restore default LED Indicators LED Ethernet Port LEDs Figure 4 3 Controller LEDs Status indicating LEDs 4 5 X4 Installation and Hardware Reference Manual 4 2 4 1 Controller Status LEDs The controller status LEDs are numbered from 1 to 6 and are located on the controller s rear facing faceplate The definitions are shown in Table 4 4 LED Name Color Status GREEN indicates that the controller is active and operating normally Ctrl Green 1 Status Amber AMBER indicates the controller is being initialized or has failed The controller is not ready ON indicates that data is currently cached 2 C_Dirty Amber in memory or is supported by the BBU during a power loss ON indic
38. Installation and Hardware Reference Manual Front Section peep tN RR 4 7 RRRSRRRRRRRRS Controller Module boards boards 1c a DIP switches aa ooog PSU qu PSU Cooling module Cooling module Figure 1 3 Dual controller Subsystem Overview Front Section Controller Module WISIN boards I O boards DIP switches PSU PSU Cooling module Cooling module Figure 1 4 Single controller Subsystem Overview Components accessed through the front panel are referred to as Front Panel Components and the components accessed through the rear panel are referred to as Rear Panel Components 1 4 Product Overview Chapter 1 Introduction 1 1 3 2 Physical Dimensions The X4 subsystem comes in an enhanced 3U chassis with the following dimensions f With handles 482 6mm x 131mm x 504 3mm 19 x 5 2 x 19 9 inches width x height x depth f Without handles 445mm x 130mm x 488 2mm 17 5 x 5 1 x 19 2 inches width x height x depth 1 1 3 3 Channels The X4 subsystem comes with either six 6 or four 4 4Gbps Fibre channels Each channel is routed through two 2 SFP ports to provide a total of up to twelve 12 FC ports See Figure 1 5 Shown below are details o
39. Introduction Expansion SBOD Host or SBOD PETINE eT Tm Tim m CHO CH2 CH4 CH3 5 CH1 Port 1 Porta 1 Port 1 Port 0 Port 1 Pon Porti Pona 1 Port 0 en f Fe gend de Jee Figure 1 7 Fibre Ports 6 Channel Model Single controller Expansion SBOD j CHO CH2 CH3 CH1 Port 1 Pert b Port 1 Port 0 Port 1 Port 0 Pon Port Figure 1 8 Fibre Ports 4 Channel Model Single controller X4 RAID Subsystem Installation and Hardware Reference Manual 1 1 3 4 Port Assignments 1 Taking CHO and as an example the controller port and controller B port definitions only apply in redundant controller configurations when their onboard hub is disabled Onboard Hub Disabled B port A port B port A port Figure 1 9 A Ports Ports a Dual controller Configuration A simplified view of onboard hub is shown below LD is short for Logical Drive Channel A port Hub Disabled Ex 2m Remp n E pes BE P e H9 contre 8 Channel B port Magen I LD1 Channel port _ LDO ET 5 E Channel port LD1 gy 1 8 Figure 1 10 Onboard Hub and Access Routes If the onboard hub is enabled the twin ports will be hubbed together Any of the twin ports provides equal access to both of the RAID controllers as shown in the lower half of the above diagram 2 T
40. LED definitions are shown in Table 4 7 Color Status Flashing Amber The LED flashes to indicate the BBU is being charged Static Amber The BBU has failed OFF The BBU is fully charged and is able to sustain cached data Table 4 7 BBU LED Definitions 4 2 6 PSU LEDs Each PSU comes with a single LED see Figure 4 6 located underneath the power switch that turns on the subsystem This LED indicates the operational status of the PSU Please refer to the PSU LED definitions shown in Table 4 8 PSU LEDs Figure 4 6 PSU LED 4 8 Status indicating LEDs Chapter 4 Subsystem Operation and Monitoring Color Status Intermittent Flashing Green Static Green The power supply has not been turned on The PSU LED flashes slowly when the subsystem is connected to a power source but not yet turned on The PSU is operating normally Static Red The PSU has failed and is unable to provide power to the subsystem Table 4 8 PSU LED Definitions 4 2 7 Cooling Module LEDs Each cooling module has two 2 red LEDs located on the PSU module Each LED corresponds to an individual cooling fan See Figure 4 7 Please refer to the cooling module LED definitions shown in Table 4 9 FanO Fan2 Figure 4 7 Cooling Module LEDs and Cooling Fan Locations Color Status Static Green The cooling fan is operating normally Static Red The c
41. Please Wait Power On Self Test Please Wait Power on Init Completed 4 512 RAM Wait X4 No Host LUN Ready This screen appears when the PSUs are turned on System is performing a self test System power on self test is completed System is accessing various interfaces Verifying installed memory System is ready You can now start to configure the subsystem System is ready for I Os X4 Installation and Hardware Reference Manual 3 6 Power Off Procedure If you wish to power down the subsystem please follow these steps If you wish to power down the subsystem please make sure that no time consuming processes like a logical drive parity check or a background scrub are running ua Step 1 7 Step 2 ua Step 3 Stop I O access to the system Close your applications to stop all IO accesses to the subsystem Please refer to the documentation that came with your applications Flush the cache Locate the C_Dirty LED on the controller module to check if there is still cached data in memory Use the Shutdown Controller function to flush all cached data This prepares the RAID subsystem to be safely powered down Turn off the power Once the subsystem has been powered down other enclosures attached to the subsystem may be sequentially powered down Power Off Procedure Chapter 4 System Monitoring 4 1 System Monit
42. Reference Manual 4 2 Configuration Client Configuration Client is a powerful sub module that runs as a software program independent from RAIDWatch and can be installed on different management stations It is used for event notification via email fax LAN broadcast SNMP traps MSN Messenger SMS Short Message Service and the configuration utility screen Configuration Client helps prevent blind time and keeps you constantly aware of system status Instructions on activating Configuration Client functionality are given in the RAIDWatch User s Manual LEDs Device status indicating LEDs are located on all active components The LEDs inform you of the integrity of a given component or a given link You should become familiar with different LEDs that are present on the subsystem and their functions See Section 4 2 Audible alarm A beeper comes with the RAID controller board and will be triggered if any of a number of threatening events occurs These events usually jeopardize the functional integrity of the subsystem and must be heeded at all times Events such as a violated temperature threshold will trigger the alarm If a subsystem manager is present he can use any of the management tools to determine the cause of the alarm and take appropriate measures PC An FC bus connects to sensors or detection circuits that reside on PSUs backplane cooling modules and RAID controller board See Section Error Reference source not found
43. Step 3 t Step 4 Figure 5 4 Installing the Controller Module Secure the controller module Once fully inserted lift up the levers at the back of the controller module This will ensure the controller back end connectors are properly mated to the backplane If you feel abnormal contact resistance try install the controller again Secure the controller module to the subsystem Secure the levers by fastening two 2 screws through holes underneath the levers to secure the controller module in place See Figure 5 5 Ejection Levers Ri Step 5 Figure 5 5 Securing Controller with Screws Re attach all the cables that were removed These include the cables that connect to the host and the expansion chassis any Ethernet cable that was previously attached to the LAN port and any cables that were attached to the COM ports Replacing Controller Module Components 5 3 5 3 1 Chapter 5 System Maintenance DIMM Module Replacement The subsystem comes with a pre installed 512MB capacity or above DDR RAM DIMM module on each controller The controller supports memory up to 2GB DDR RAM DIMM If a memory module fails a different size of DIMM module is preferred the pre installed module can be removed and the new one installed Replacement and installation instructions are described fully below q NOTE If you are going to replace or upgrade a DIMM module please follow the instructions below If you do not want
44. WY Nj e Table C 2 COM1 Adapter Cable CN1 and CN2 Pinout Definitions C 3 COM1 Cable DB9 Audio Jack Y Cable Pinouts The 2 audio jacks to DB9 Y cable connects the COMI serial ports on the redundant RAID controllers for maintenance free terminal emulation connection during controller failover failback IFT 9270A YCab Figure C 3 COM1 Cable CN1 and CN2 Connectors COMI Cable DB9 Audio Jack Y Cable Pinouts C 3 X4 Installation and Hardware Reference Manual C 4 C4 CON2 Serial Port Cable to UPS CNI Pin Number Pin Name 1 Ground TXD RXD CN2 Pin Number Pin Name NC RXD TXD DTR Shorted GND DSR Shorted RTS Shorted CTS Shorted WO clr aD MY BY WwW NR NC Table C 3 COM1 Y Cable CN1 and CN2 Pinout Definitions PN IFT 9270CUPSCab COM2 Serial Port Cable to UPS COM2 Cable Use this cable to connect the port to a UPS Figure C 4 Connector Pinouts Adapter Cable for COM2 CN1 Pin Number Pin Name 1 Ground 2 TXD 3 RXD CN2 Pin Number Pin Name 1 TXD 2 RXD 3 NA 4 NA Appendix Pinouts 5 NA 6 NA 7 NA 8 NA 9 Ground Table C 4 COM2 Adapter Cable CN1 and CN2 Pinout Definitions C 5 IFT 9011 Null Modem A null modem is used for wire swap and is necessary for connecting COM1 CN2 to a PC serial port PN IFT 901
45. ab G1030 Serial port cable for single controller subsystems 1 audio jack to 1 DB 9 IFT 9270A YCab R1030 Serial port cable for dual controller subsystems 2 audio jacks to 1 DB 9 Y cable Table B 2 Accessories Shipped with the Subsystem Accessories that can be purchased separately are listed in Table B 2 Model Name Description IFT Dummy Drive tray Type II bezel 9273CDTrayDmy IFT 9273CBTE Battery cell pack Li Ion 4 cell for X4 ASIC400 3U profile series IFT 9270CUPSCab Serial port cable to UPS device for single controller subsystems 1 audio jack to 1 DB 9 IFT 9270CUPS Y Cab Serial port cable to UPS device for dual controller subsystems 2 audio jacks to 1 DB 9 Y cable Accessories Appendix Spare Parts and Accessories IFT 9270CSFP4GA01 Agilent Fibre Channel 4 25 2 125 1 0625 GBd Small Form Pluggable Optical Transceiver LC wave length 850nm multi mode IFT 9270CFCCab01 Optical FC cable LC LC MM 62 5 125 Duplex LSZH O D 1 8mmx2 1 Meter IFT 9270CFCCab02 Optical FC cable LC LC MM 62 5 125 Duplex LSZH O D 1 8mmx2 5 Meters IFT 9270CFCCab03 Optical FC cable LC LC MM 62 5 125 Duplex LSZH O D 1 8mmx2 10 Meters IFT 9273Cslider32 Enhanced slide rail assembly for X4 3U series subsystem 28 to 32 inches rack depth IFT 9273CSlider36 Enhanced slide rail assembly for X4 3U series subsy
46. ables must be applied to protect against emissions Connect the other end of the Ethernet cable to a LAN port of your local Ethernet hub or switch y LED indicators Each rear panel comes with nine 9 LED indicators Please refer to Chapter 3 for information on LEDs f Levers Two 2 ejection levers on the sides of the controller can be used to gracefully remove or install the controller f Restore Default Button LED Pressing the restore default button while powering on the subsystem will restore firmware default settings A CAUTION The Restore NVRAM Default push button is a function that carries some risks Firmware restoration will not destroy the existing logical drive configurations however if the existing logical drives cannot be adequately associated with host ID LUNs after firmware default restoration data loss or inconsistencies may occur The Restore Default button is a non latch type push button accessed through a round opening underneath the Restore Default LED Listed below are the necessary procedures that should be completed before using this button 1 16 System Components Chapter 1 Introduction 1 Before pressing this button to restore firmware defaults it is highly advised to make a list of the existing ID LUN mapping information You will need the list for restoring ID LUN mapping after restoring defaults Default restoration will erase the ID LUN mapping associations e g which logical drive is
47. aceensseeenseaeessnseeensnseesenseeeeenaes A 1 Environmental 5 1 Power Requirements EH edente 1 Vibration Certifications Warning Alarms A 2 FUNCTIONAL SPECIFICATIONS scccssscessssseensecceessseeenssseessnseeeennseesenseeeeenaes A 2 Configuration Specifications esses tette tette treten tentent A 2 Architectural Specifications eter enne tenen A 3 DRIVE TRAY SPECIFICATIONS ss sccsssseeesssseeensseeensaceessseeensnseeeenseeeeensaeees A 3 A 4 POWER SUPPLY SPECIFICATIONS eese eene netta tttm tnnt ennnen nn A 3 A 5 COOLING MODULE SPECIFICATIONS eee eene nennen nennen 4 6 RAID MANAGEMENT e ee nnn nnne nennen nnn nnnm 7 FAULT TOLERANCE MANAGEMENT APPENDIX B SPARE PARTS AND ACCESSORIES Bi SPARE 1 2 m E MEER B 2 APPENDIX C PINOUTS C 1 4G FC CONNECTOR PINOUTS eere nana C 1 C 2 COM 1 SERIAL PORT CABLE eeeeeeennnn e a C 2 CaBrE DB9 AUDIO JACK Y CABLE PINOUTS nnn nnne C 3 C 4 COM SERIAL PORT CABLE TO C 4 C 5 IFT 9011 NULL MODEM eeenrn nnn nnn
48. acing a Faulty BBU The subsystem comes with two 2 or one 1 Li Ion BBUs that can sustain cache memory in the event of a power failure or in the extremely unlikely event that both PSUs fail The BBU provides additional data security and helps minimize the loss of data during power outages Each BBU consists of a metal bracket that encloses a battery cell pack and a adapter board that connects to the charger board mounted on top the controller main board Each BBU is secured to the controller module using two 2 retention screws If a BBU fails or is reaching its life expectancy by checking its EEPROM record it should be replaced Please read the BBU handling precautions below before replacing it Replacing a Faulty BBU 5 9 X4 Installation and Hardware Reference Manual 5 10 Fault Conditions A BBU failure can result from the following 1 BBU has lost its ability to hold electrical charge This may be the case after the battery cells have been recharged for many times regardless of how long the module has been used Therefore a stable power source is important for system operation The charger circuitry implemented within the controller has failed There are other conditions that might trigger the BBU fault events and trigger the BBU fault LED 1 The temperature sensor embedded with the charger circuit reports a temperature reading exceeding the preset threshold The charger circuits will enter a low powe
49. added online system firmware will only recognize the disk drives after a configurable Drive Check Time Please refer to firmware manual for more details 2 11 X4 Installation and Hardware Reference Manual This page is intentionally left blank 2 12 Drive Tray Installation 05 3 1 3 1 1 Subsystem Connection This chapter outlines some general configuration rules you should use when configuring a storage system and introduces basic information about Fibre Channel cabling and topologies for the X4 subsystems You can refer to these topologies or use them as a guide for developing your own unique topologies A complete description of the power on and power off procedures is also given in this chapter Host Connection Prerequisites The Fiber Optical Cables It is recommended to apply RAID s certified Fibre Channel transceivers and optical cables Shown below are some details of the standard cabling accessories IFT 9270CSFP4GAO01 Agilent Fibre Channel 4 25 2 125 1 0625 GBd Small Form Pluggable Optical Transceiver LC wave length 850nm multi mode IFT 9270CFCCab01 Optical FC cable LC LC MM 62 5 125 Duplex LSZH O D 1 8mmx2 1 Meter IFT 9270CFCCab02 Optical FC cable LC LC MM 62 5 125 Duplex LSZH O D 1 8mmx2 5 Meters IFT 9270CFCCab03 Optical FC cable LC LC MM 62 5 125 Duplex LSZH O D 1 8mmx2 10 Meters onnection Frerequisites E X4 Installation and Hardwar
50. and the Controller B is the secondary controller If Controller A should fail for any reason hardware error software error removal from chassis etc the Controller B will take over and become the new managing controller d40 Product Overview Chapter 1 Introduction If the failed Controller A restarts and successfully returns to service it will become the secondary controller If Controller is replaced and then the subsystem is rebooted Controller B will return the Primary role to Controller A the controller located in the upper slot f BBUs X4 models come with either one 1 or two 2 BBUs BBUs are designed to sustain cached data during a power outage to prevent data loss These BBUs are independent from controllers and separately hot swappable See Section 1 2 4 f PSUs The hot swappable PSUs provide power to the subsystem A power switch is provided with each PSU to turn the system on and off See Section 1 2 5 f Cooling modules The redundant cooling modules provide ventilation airflow across the subsystem See Section 1 2 6 f DIP Switches The subsystem DIP switches control some of the system configuration options f Host connection modules Each host connection module contains two 2 FC ports for host connection See Section 1 2 7 f Expansion modules Each expansion module provides extensions from a dual loop configuration and two 2 additional channels CH4 amp 5 6 channel m
51. annel Yes Ho Figure 3 5 View and Edit Channels Screen 7 Step 6 sure to reset the controller for the new selection to take effect To reset the controller without powering off the system choose System Functions in the Hyper Terminal main menu then press ENTER 3 6 Configuration Options amp t Step 7 ua 7 Step 8 A Chapter 3 Subsystem Connection Press the up or down arrow keys to Reset Controller option then press ENTER Press ENTER again to confirm The controller will now reset Questions related to Hyper Terminal program such as how to setup the program please refer to firmware Operation Manual that came with the product CD in your subsystem package Via RAIDWatch Manager amp t Step 1 Ss t Step 2 Step 3 Step 4 i Step 5 Configuration Options Open a RAIDWatch manager session and log in with an administrator password to access the Configuration category On the navigation tree panel on the left of the RAIDWatch screen open the Configuration category and click on the Channel option See Figure 3 6 L A Configuration I Quick Installation Create Logical Drive Ep Existing Logical Drives iE Create Logical Volume P Existing Logical Volumes t am HostLUN Mapping Configuration Parameters Figure 3 6 RAIDWatch Navigation Tree When the Channel window displays sel
52. ates that one of the preset Amber temperature thresholds is violated BBU 4 Link Green ON indicates BBU is present FLASHING indicates there is active traffic through the host ports 5 Hst Bsy Green OFF indicates there is no activity on the host ports FLASHING indicates there is active traffic on the drive channels 6 Drv Bsy Green 2 2 OFF indicates there is no activity on the drive channels Table 4 4 Controller Status LED Definitions 4 2 4 2 Fibre Port LEDs Each I O module provides 4G FC SFP ports Each of these ports has two 2 LEDs see Figure 4 3 for displaying the link and speed statuses Host port LEDs are used here as examples Host Connection Module Link Speed Link Speed apa ape Figure 4 4 Fibre Port LEDs 46 Status indicating LEDs Chapter 4 Subsystem Operation and Monitoring Steady GREEN indicates that channel link is valid Link Status Green OFF indicates no valid link is made through the FC port Steady GREEN indicates 4Gb s link speed Green Steady AMBER indicates 2Gb s link Speed pee Amber speed drive channels only Off indicates incongruous link status Table 4 5 Fibre Port LED Definitions 4 2 4 3 Restore Default LED A restore default LED is located above the Restore Default push button on the lower right corner of the controller faceplate See Figure 4 3 To restore firmware de
53. ators Figure 2 5 Front View of an Individual Drive Tray J Step 2 Open the front bezel on the drive tray see Figure 2 6 by pressing the release button The front flap will swing up into position Figure 2 6 Opening the Drive Tray Front Flap jf Step 3 Align the drive tray with the slot into which you wish to insert it Make sure that it is properly aligned with the tray slot and then gently slide it in Push the tray inside until it is Drive Tray Installation 2 9 2 10 X4 Installation and Hardware Reference Manual fully inserted This should be done smoothly and gently See Figure 2 7 Figure 2 7 Installing a Drive Tray Close the front bezel Make sure the front bezel is closed properly to secure the drive tray within chassis If the front bezel is not closed properly the connection between the hard drive and system backplane will not be secure I 0 j Figure 2 8 Closing the Front Bezel CD seep 5 Lock the flap into place by turning the rotary bezel lock until the groove on its face is pointing down vertical orientation See Figure 2 9 Drive Tray Installation t Step 6 Drive Tray Installation Chapter 2 Hardware Installation Figure 2 9 Drive Tray Key Lock Rotation Once the drive tray is inserted the subsystem should attempt to spin up and recognize the hard drives during system initialization process If one or more disk drives are
54. be Installed eene 2 6 2 7 RACKMOUNTING nnn R RR R4 anakan aiina 2 6 2 8 ENCLOSURE BAY NUMBERING AND DRIVE ID ALLOCATION 2 7 2 9 HARD DRIVE INSTALLATION eene nnn nnn nennen rra aaa ana 2 7 2 9 1 Hard Drive Installation Prerequisites eese 2 7 2 9 2 ee eire em etm eer cete es 2 8 2 10 DRIVE TRAY INSTALLATION 2 9 CHAPTER 3 SUBSYSTEM CONNECTION 3 1 HOST CONNECTION 3 1 3 1 1 The iber Optical Cables ro RUE e es 3 1 3 2 TOPOLOGY AND CONFIGURATION CONSIDERATIONGS een nnnm nnn 3 2 3 2 I Basic Gonfiguration Rules ttt eter o treten vee he Ue Ro RR REFS YER SEN FEX 3 2 3 3 CONFIGURATION OPTIONS 3 3 3 3 1 Port nennen nne i 3 3 332 DIP SW Ch si teet as iti ele AEE BRI ht RAR 3 4 3 3 3 Changing the Channel Mode 3 3 3 1 Via Hyper Terminal T 3 9 3 2 Via RAIDWatch MANA CEt oreinen ette eas rone A bed 3 7 3 4 SAMPLE TOPOLOG IES recreo cite Deere andes uu 3 9 3 41 Host side Connection uisa te eet tete e ab n eee teli ede eite 3
55. canisters Longer screws may damage the drive 2 8 2 Drive Installation 09 Step 1 Place the Fibre hard drive into the drive tray as shown in Figure 2 3 making sure that the interface connector is facing the open side of the drive tray and the label side is facing upwards Hard Drive Drive Tray Figure 2 3 Installing a Hard Drive Figure 2 4 Screw Hole Locations lel Step 2 Adjust the drive s location until the mounting holes in the drive canister are aligned with those on the hard drive Use the screw holes closest to the rear end of the drive tray Secure the drive with four supplied 6 32 flat head screws See Figure 2 3 2 8 Hard Drive Installation Chapter 2 Hardware Installation 2 9 Drive Tray Installation Once the hard drives have been installed in the drive trays the drive trays can be installed into the subsystem A WARNING All drive trays must be installed into the enclosure even if they do not contain a hard drive If the trays are not installed into the enclosure the ventilation required for cooling will not be normalized and the subsystem will overheat amp ie Step 1 Make sure the rotary bezel lock is in the unlocked position ie the groove on its face is in a horizontal orientation as shown in Figure 2 5 If the groove is in a vertical position then the bezel lock is locked and the front flap on the drive tray cannot be opened Rotary Lock Release Button LED Indic
56. ch The concerns for using the onboard hub in a dual controller configuration are 1 One drawback of using the onboard hub is that when two ports are hubbed together they share a 4Gb s bandwidth When the onboard hub is disabled each A or B port delivers a 4Gb s bandwidth 3 4 Configuration Options Chapter 3 Subsystem Connection Hub Enabled CHO CH2 CH4 CH3 CH5 CH1 4Gb s 4Gb s 4Gb s 4Gb s Figure 3 3 Port Bandwidth when the Onboard Hub is Enabled Hub Disabled CHO CH2 CH4 CH3 CH5 CH1 M hubbed M hubbed B port A port Aport Apon 8 Apon DTI 4Gb s 4Gb s 4Gb s4Gb s 4Gb s 4Gb s 4Gb s 4Gb s Figure 3 4 Port Bandwidth when the Onboard Hub is Disabled 2 In a dual controller configuration and when the onboard hub is disabled the SFP port on the right hand side is managed by controller and that on the left hand side by controller B Respectively in a dual controller configuration a RAID array managed by controller A is accessed through the A ports One that managed by controller B is accessed through the B ports A RAID array s ownership is determined by whether it is associated with controller A IDs or controller B IDs 3 CH2 and CH3 are drive extension channels by factory default CHA and CH5 can be manually configured as drive channels via firmware s configuration utility Use data paths from different drive channels to form a dual loop across expansion SBODs RAID s X4 SBOD series is
57. d Hardware Reference Manual System Weight Net Weight 33kg 72 6 pounds Gross Weight 35kg 77 pounds Shock Half sine Operating 5G peak 11ms duration Non operating 15G 11ms half sine Vibration Operating 0 5o0ct min 5 to 500Hz sinewave 02 G Non operating 0 5oct min 5 to 500Hz sinewave 1 0G Certifications FCC Class A CE UL60959 TEC 60950 BSMI Warning Alarms Audible alarms System LEDs RAIDWatch Manager LCD screen e RS 232C terminal Event notifications sent over email fax LAN broadcast SNMP traps MSN messenger SMS short messages A 2 Functional Specifications Configuration Specifications RAID Levels 0 1 0 1 3 5 6 10 30 50 and 60 Host O S C bility Host O S independent Host Interface FG FC Host Channels d i5 SENOK Peet channels via twelve FC 4G in a dual loop CH2 CH3 managed through atoop switch A 2 Functional Specifications Appendix A Specifications Drive Channels Defaults CH2 and CH H4 and CH5 can be 6 manually configured into drive loops Memory Caching Mode Write through or write back Default 512MB up to 2GB DDR RAM DIMM Cache Memory modules with EC Number of LUNs Up to 64 per host ID Multiple Target Y IDs Host Channel ii Aliases for Target IDs Yes Firmware on Flash Yes
58. d panel should illuminate indicating that power is supplied to the system Fibre Port LEDs The right hand side LED underneath each FC port should illuminate green indicating that the Fibre Channel link has been established BBU LEDs The LEDs on the BBU rear panel should start flashing amber indicating that the BBU is being charged PSU LEDs If the PSU is operating normally and experiencing no problem after power on the LEDs on the PSU should light green constantly Firmware and RAIDWatch Various aspects of the system operating information can be accessed through the firmware configuration utilities or the RAIDWatch GUL Audible alarm If any errors occur during the initialization process the onboard alarm will sound in a hastily repeated manner Drive BUSY LEDs should start flashing during the power up process indicating that the RAID controllers are attempting to access the hard drives The subsystem has been designed to run continuously If a component fails the fault can be corrected online Power On Power LCD Screen Chapter 3 Subsystem Connection When powering on the subsystem wait for the front panel LCD screen to show READY or No Host LUN before you power up the application servers Model Name Status Data Transfer Indicator Figure 3 17 The LCD Initial Screen The LCD screen startup sequence is shown and described in the sequence below Initializing
59. d via LAN WAN The manager communicates with the array via the connection of the existing host interfaces or Ethernet link to the array s Ethernet port Audible Alarms The X4 subsystems come with audible alarms that are triggered when a components failure occurs or when a preset controller or subsystem threshold is violated Whenever you hear an audible alarm it is imperative that you determine the cause and rectify the problem immediately Event notification messages indicate the completion of array configuration tasks or changes in status and are always accompanied by two 2 or three 3 successive and prolonged beeps A WARNING Failing to respond when an audible alarm is heard can lead to permanent damage of the X4 subsystem When an audible alarm is heard rectify the problem as soon as possible System Monitoring 1 4 1 4 1 1 4 2 1 4 3 Chapter 1 Introduction Hot swappable Components Hot swap Capabilities The X4 subsystem comes with hot swappable components that can be exchanged while the subsystem is still online without affecting the operational integrity of the subsystem These components should only be removed from the subsystem when they are being replaced At no other time should these components be removed from the subsystem Components The following components are hot swappable f BBUs Controller modules in a dual controller configuration Host connection modules Drive loop extension modules
60. dates on system status and individual components The following monitoring features are included in the subsystem I C bus The following X4 subsystem elements are interfaced to the RAID controller over a non user serviceable 12 bus f PSUs f Cooling modules f Temperature sensors and presence detection circuitries LED Indicators The following components come with LEDs to indicate the statuses of individual components Please refer to Chapter 3 for more information on System Monitoring f LCD panel 3 LEDs f Drive tray 2 LEDs on each tray f RAID controller 6 controller status LEDs 1 restore default LED and 2 Ethernet port status LEDs on each module f BBU 1 LED on each module X4 RAID Subsystem Installation and Hardware Reference Manual 1 24 Drive loop extension module 8 LEDs for FC ports Host connection module 4 LEDs for FC ports Cooling module 2 LEDs for individual cooling fans e 0 8 N PSU 1 LED on each module 1 3 3 Firmware and RAIDWatch GUI 1 3 4 Firmware The firmware is pre installed software that manages the subsystem The firmware can be accessed either through the LCD keypad panel or a terminal emulation program running on a management computer connected via the subsystem s COMI serial port Telnet via Ethernet port is also supported RAIDWatch RAIDWatch is a premier browser based or Java based graphical user interface GUI that can be installed on a remote computer and accesse
61. e Reference Manual CAUTION 1 fiber optical cables are sensitive and must be handled with care To prevent interference within a rack system the cable routing paths must be carefully planned and the cables must not be bent 2 If it becomes necessary to apply 2Gb s Fibre Channel devices in your storage network e g 2G HBAs you must manually configure your host link speed to 2Gb s 3 The Auto negotiation mode is not supported 4 Most 2Gb s devices are supported Please refer to the latest Interoperability Test Report for more information 3 2 Topology and Configuration Considerations Basic Configuration Rules The following are some basic rules that should be followed f When cabling pay attention to signal quality and avoid electronic noise from adjacent interfaces f The drives included in the same logical configuration should have the same capacity but it is preferred that all disk drives within the subsystem have the same capacity f If Spare drive is preferred for automatic rebuild in a multi enclosure environment use Enclosure Spare instead of Global Spare configuration Please refer to your firmware operation manual f certified transceiver and optical cables comply with laser eye safety Class 1 standard When handling optical cables pay attention to laser eye protection measures Though unseen laser light can still inflict damage to your eyes f Itis not recommended to change the cable l
62. e chassis can be installed into standard 19 rack cabinet using self purchased mounting rails rear attached brackets or RAID s JIFT 9273CSlider rackmount brackets See Section 2 5 2 2 Safety Precautions 2 2 1 Precautions and Instructions 1 If it is necessary to transport the subsystem repackage all hard drives separately Be sure the correct power range 100 240VAC 10 is supplied by your rack cabinet or power outlet Thermal notice All drive trays even if they do not contain a hard drive must be installed into the enclosure Leaving a drive bay or module slot open will seriously affect the airflow efficiency within the enclosure and will consequently lead to system overheating Keep a faulty module in place until you have a replacement unit and you are ready to replace it An enclosure without disk drives can weigh more than to 30 kilograms 66 pounds Two 2 people will be required to install or relocate the subsystem Drives should be removed from the enclosure before moving the subsystem Airflow considerations The subsystem requires an airflow clearance especially on the front and rear For proper ventilation a minimum of 2 5cm 1 inch is required between the front of the enclosure and rack cover a minimum of 5cm 2 inches is required between the enclosure and end of the rack Safety Precautions Chapter 2 Hardware Installation 6 Handle the system modules by the retention screws eject levers or
63. e or product CD Each packed box is separated into upper and lower levels Upper level box contents e Sixteen 16 drive canisters Lower level contents Three 3 boxes are placed in the lower level Sitting at the bottom is the enclosure chassis with all the pre installed components The other two 2 boxes contain the power cords and accessory items Accessory items include an RS 232C 2 audio jack to 1 DB9 Y cable or straight through cable null modem Quick Installation Guide screws and a CD containing the RAIDWatch Manager software and its manual Installation and Hardware Reference Manual this document and the interface oriented Operation Manual Firmware configuration utility Unpacking the Subsystem 2 5 X4 Installation and Hardware Reference Manual 2 6 2 5 Installation Overview 2 5 1 Preinstalled Components Following are pre installed components that do not need to be installed SR 1 LCD keypad panel mounted on the left side forearm handle 2 Subsystem handles left and right 1 Backplane board 2 X4 or 1 X4 Controller module s 1 DDR RAM DIMM module installed in each controller module 2 X4 or 1 X4 BBUs 2 PSUs 2 Cooling modules 2 Host connection modules m A M 79 9 9M 9 9 2 Expansion modules 2 5 2 Components to be Installed 2 6 You must install the following components f Hard drives separately purchased Fibre drives f Drive trays Rackmoun
64. ect a channel that you wish to change its mode Click on the Parameters tab on the right of the screen to open the Parameters page In the Channel Mode drag down menu select a channel mode X4 Installation and Hardware Reference Manual ED step 6 Click Apply button at the bottom of the Parameters page Channel 1 Hou Fibre Spoed 4 0GHz 3 Channel 2 Drive Fibre Speed 4 0GHz Channe Mode Host Y g Chanest 3 Driva Fibre Speed 4 0GHz Drive Channel 4 Hast Five Speed 4 0 Current Data Raie Channel 5 Host Fibre Speed 4 0GHz ne Defact Data Rate Current Transfer Width Senal Figure 3 7 Channel Window LED step 7 Reset the subsystem for the new configuration to take effect To reset the subsystem open the Configuration category and click on Configuration Parameters option Configuration Parameters Communication Controller System Password Threshold Redundan Mute Beeser Reset the controller Shutdown Contotiar Restore Factory Datauits Downioad Download Fy Daemisac We BR Download NVRAM Host i Upload NVRAM to Host Disk Same to Disk Festore NVRAM from Disk _ Figure 3 8 RAIDWatch Configuration Parameters Window i Step 7 1 Click the System tab to open the System Function window LEV sep 7 2 Click to select the Reset the controller check circle and then click the Apply but
65. em components A subsystem component even if it has failed should not be removed from the subsystem until a replacement is readily at hand and can be quickly installed Removing subsystem components without a replacement can cause the system to quickly overheat When replacing a hot swappable component caution should be taken to ensure that the components are handled in an appropriate manner Rough or improper handling of components can lead to irreparable damage If the single controller module in X4 fails it is necessary to power down the subsystem and replace the controller If a controller in a dual controller X4 fails the controller can be replaced online When removing a component from the subsystem ensure that the all previously stipulated precautions see Section 2 3 are strictly followed and adhered to Overview Chapter 5 System Maintenance 5 2 Replacing Controller Module Components 5 2 1 Controller Module Maintenance Overview f Itis not recommended to re use the DIMM module in a failed controller unless a similar RAID subsystem is nearby and can be used to test the DIMM module f Controller module can be replaced online only with a dual controller configuration For single controller configuration X4 4031 controller failure will result in interruptions to service f When replacing the controller module always remember that the controller board is one of the most sensitive components in the subsystem A
66. em series f Describes all the active components in the system f Provides recommendations and details about the hardware installation process of the subsystem f Briefly describes how to monitor the subsystem f Describes how to maintain the subsystem This manual does not f Describe components that are not user serviceable f Describe the configuration options of firmware using terminal emulation programs or the RAIDWatch GUI that came with your subsystem f Give a detailed description of the RAID processing units or the RAID controllers embedded within the subsystem Revision History Rev 1 0 Initial release Rev 1 1 Added backward compatibility with 2Gbps Fibre Channel devices For more information please refer to the latest Interoperability Test Report Rev 1 2 Updated controller model names Rev 1 3 Added configuration topologies X4 RAID Subsystem Installation and Hardware Reference Manual Who should read this manual This manual assumes that its readers are experienced with computer hardware installation and are familiar with storage enclosures Related Documentation f Generic Operation Manual f RAIDWatch User s Manual These two 2 documents are located in the CD included with your subsystem package Conventions Naming From this point on and throughout the rest of this manual the X4 series is referred to as simply the subsystem or the system Lists Bulleted Lists Bulleted lists are
67. ems Inc All other names brands products or services are trademarks or registered trademarks of their respective owners X4 RAID Subsystem Installation and Hardware Reference Manual Warnings and Certifications Restricted Access Location This equipment is intended to be installed in a RESTRICTED ACCESS LOCATION only AN Electric Shock Warning To Prevent Electric Shock Access to this equipment is granted only to trained operators and service personnel who have been instructed of and fully understand the possible hazardous conditions and the consequences of accessing non field serviceable units For example accessing the backplane may cause electric shock FC C applies in the U S and Canada FCC Class A Radio Frequency Interference Statement This device complies with Part 15 of the FCC rules Operation is subject to the following two conditions 1 this device may not cause harmful interference and 2 this device may accept any interference received including interference that may cause undesired operation NOTE This equipment has been tested and found to comply with the limits for a Class A digital device pursuant to Part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with
68. ences the alarm temporarily until the next controller event occurs The definitions of LEDs on the panel are given in Table 4 2 below y 4 Figure 4 1 LCD Keypad Panel Name Color Status PWR Power Blue ON indicates that power is supplied to the subsystem OFF indicates that no power is supplied to the the subsystem RAID controller has failed subsystem or BUSY White FLASHING indicates that there is active traffic on the host drive channels OFF indicates that there is no activity on the host drive channels ATTEN Attention Red ON indicates that a component failure status event has occurred OFF indicates that the subsystem and all its components are operating correctly Table 4 2 LCD Panel LED Definitions During the power on process the ATTEN LED will light up steadily Once the subsystem successfully boots up with no faults the ATTEN LED is turned off 4 2 3 Drive Tray LEDs Two 2 LED indicators are located on the right side of each drive tray See Figure 4 2 Refer to Table 4 3 for the LED definitions When notified by a drive failure message you should check the drive tray indicators to find the correct location of the failed drive Replacing the wrong drive can fatally fail a logical array Status indicating LEDs Chapter 4 Subsystem Operation and Monitoring Drive Busy LED Power Status LED
69. ength or tune the cables unless you have adequate equipment and received proper training Tuning the cables require a complete set of equipment including combination strip tool sapphire scribe tool die set heat cure oven etc Particles or poorly polished fiber can cause immanent problems 3 2 Topology and Configuration Considerations Chapter 3 Subsystem Connection 3 3 Configuration Options 3 3 1 Port Assignments CHO CH2 CH4 CH3 CH5 CH1 Always hubbed Always hubbed port Aport Bport A port Bport Aport 77 oe oda oe o Mele Figure 3 1 Port Assignments in a 6 channel Dual controller Configuration Bport Aport Port Assignments in Different Configurations Port assignments can vary with dual or single controller 6 or 4 channel configurations and with enabled or disable hub The 4 channel models do not have CH4 and CH5 Dual controller Single controller A port Shared To To controller A CHO CH1 access To controller B controller A Don t use Hub En Hub Dis Hub En Hub Dis CH2 amp CH3 Ports on an I O module are always hubbed and linked to a bypass No port designations Hub En Hub Dis Hub En Hub Dis CH4 CH5 Aport TocontollerA 1 To controller A Host mode B port icis To controller B controller A pog CH4 CH5 A port Shared Not To To controller A
70. extension 2 The expansion ports are then connected to the dual controller version of X4 SBODs These channels form a drive side dual loop across the expansion enclosures 3 Each enclosure should be assigned with a unique enclosure ID using the DIP switches on the rear panel 4 The onboard hub is enabled on the CH4 and CH5 channels If the onboard hub is disabled you will need FC switches for fault tolerant links to expansion enclosures Up to 6 SBODs 96 drives Up to 7 SBODs 112 drives Figure 3 11 Connecting 4G SBODs with a RAID Subsystem Dual controller Sample Topologies 3 13 X4 Installation and Hardware Reference Manual Single controller SBOD Connection 1 Shown below is a single controller RAID connected to single controller X4 SBODs The connections are not fault tolerant 2 Up to fourteen 14 SBODs can be connected while each SBOD should possess a unique set of enclosure IDs so that the disk drives within can properly operate with adequate AL PA IDs See the DIP switch settings discussed previously Single controller SBOD Connection Up to 6 SBODs 96 drives Figure 3 12 Connecting 4G SBODs with a RAID Subsystem Single controller S NOTE This topology does not provide path redundancy This massive capacity topology can be applied in off line or backup storage 3 14 Sample Topologies Chapter 3 Subsystem Connection Large Capacit
71. ey are installed in the rear section of the PSU modules Two 2 LEDs on the PSU faceplate indicate the corresponding cooling fan statuses Intelligent Dual Speed Operation The cooling fans in the cooling module operate with two rotation speeds Under normal conditions the cooling fans run at the low speed which is sufficient for maintaining airflow across components Under the following conditions cooling fans raise their rotation speed to increase airflow 1 Component Failure once a cooling fan a PSU or a temperature sensor fails the remaining cooling fans automatically raise its rotation speed 2 Elevated Temperature if the temperature reading breaches the upper threshold set for any of the interior temperature sensors the cooling fans automatically raise its rotation speed System Components Chapter 1 Introduction 3 During the subsystem initialization stage the cooling fans operate at the high speed and return to lower speed once the initialization process is completed and that the subsystem has not discovered any erroneous conditions NOTE f Cooling module specifications are listed in Appendix A 1 2 7 Host I O Modules FC Ports Cut through switch board Handle Figure 1 22 Host I O Module PN IFT 9273CF4HIO2L left side module CHO IFT 9273CF4HIO2R right side module CH1 Host I O modules are located along the upper edge of enclosure rear panel and are secured to the chassis by retention screws
72. f these I O ports Table 1 3 X4 Model Variations Model CHO amp CH1 CH2 amp CH3 CH4 amp CH5 X4 Dual 4 x SFP host 4 x SFP drive 4 x SFP host or extension drive expansion X4 Single 4 x SFP host 4 x SFP drive 4 x SFP host or extension drive expansion X4 Dual 4 x SFP host 4 x SFP drive N A extension X4 Single 4 x SFP host 4 x SFP drive N A extension f and are defaulted as host port modules Each channel is interfaced through two 2 SFP host ports on each controller f Disk drives within the X4 are linked across a Fibre Channel dual loop configuration controlled by a high efficiency loop switch CH2 and CH3 can be extended to Fibre Channel expansion SBODs f CH4 and CH5 can be manually configured either as host or drive channels You can change the channel mode of CH4 and CH5 via firmware configuration utilities Please see Chapter 4 for details X4 RAID Subsystem Installation and Hardware Reference Manual Expansion SBOD Host SBOD Host CHO CH2 CH4 CH3 CH5 CH1 E en rires Port 1 Porte 041 1 Pert Porta Figure 1 5 6 Channel Model Fibre Ports Redundant controller Expansion SBOD NI h Host CH2 CH3 CH1 Cur Cera CWB Ora Port Porto Port Port Fert 3 Port 0 Port 1 Porta Figure 1 6 4 Channel Model Fibre Ports Redundant controller Product Overview 1 6 Chapter 1
73. faults press and hold the button before powering on the subsystem Once the factory defaults are successfully restored the restore default LED lights green Al CAUTION Restoring default is more or less a last resort method Although logical drives remain intact after default restoration configuration data such as LUN associations and performance preferences will be erased Before using this button make sure you have a written record or a previously saved configuration profile one of firmware s functionalities Save Please refer to Chapter 1 for the correct procedures of default restoration 4 2 4 4 Ethernet Port LEDs A shielded Ethernet cable is recommended for connecting the RJ 45 Ethernet management port to a local network after you configure an IP address This enables you to manage your subsystem via LAN WAN Two 2 LEDs on the Ethernet port indicate connection statuses See Figure 4 5 for the locations of the LED indicators Refer to Table 4 6 for the LED definitions Status indicating LEDs 4 7 X4 Installation and Hardware Reference Manual Link Activity Figure 4 5 LAN Indicators Name Color Status Link Status Green ON indicates the management port is kine deyi LAN Activity Green BLINKING indicates active transmission Table 4 6 LAN Port LED Definitions 4 2 5 BBU LED Related locations of BBU LEDs are shown in the controller LED diagram above BBU
74. gned to the subsystem or different logical drives This enables ease of identification in a topology consisting of numerous arrays 1 2 2 Drive Tray Rotary Lock Release Button LED Indicators Figure 1 15 Drive Tray Front View ystem Components Chapter 1 Introduction PN IFT 9273CDTray The subsystem comes with sixteen 16 drive trays see Figure 1 15 designed to accommodate separately purchased standard 1 inch pitch 3 5 inch Fibre disk drives The drive bays are accessible from the front of the enclosure Two 2 LEDs on the front bezel indicate drive operating statuses A rotary bezel lock prevents accidental removal while a release button ensures fast and efficient drive swapping Screw holes on the sides can be used to secure hard drives to the drive tray A WARNING Be careful not to warp twist or contort the drive tray in any way e g by dropping it or resting heavy objects on it The drive tray has been customized to fit into the drive bays in the X4 subsystem If the drive bay superstructure is deformed or altered the drive trays may not fit into the drive bay When viewing from the front drive bay IDs are numbered from Slot 1 to Slot 16 see Figure 1 16 from left to right and then from top to bottom EN CAUTION f Tray numbering sequence is important if one disk drive fails and needs to be replaced Replacing a wrong drive can fatally fail a RAID3 5 array Failing three members destroys a RAID6
75. he A port and B port definitions only apply in dual controller models 3 CH2 and CH3 are the extension of the drive side dual loop There are no controller specific port definitions with CH2 and CH3 I O ports The dual loop is physically interfaced with dual ported Fibre drives and both of the RAID controllers Product Overview Chapter 1 Introduction 4 The twin ports on the CH2 and CH3 modules are always interfaced through bypass circuitries Any of them can be used for drive loop extension 5 On 6 channel models the default channel mode for CH4 and CH5 is host and can be manually set to the drive mode 1 1 3 5 Front Panel Overview The front section of the subsystem features a 4x4 layout for sixteen 16 3 5 inch drives The two 2 handles on the front of the subsystem enable you to easily extract the chassis from a rack or cabinet The LCD panel on the left handle provides an easy access to firmware functionalities The X4 front panel is shown in Figure 1 11 A description of each front panel component is given below LCD Panel Handle Drive Trays Figure 1 11 Subsystem Front View The front panel shown in Figure 1 11 accommodates the following components f Drive bays with drive tray canisters The subsystem houses sixteen 16 drive bays in the front section of the chassis f Forearm handles These front handles are conveniently placed and help retrieving the chassis out of a rac
76. ill do xii Chapter 1 Introduction 1 1 Product Overview 1 1 1 Product Introduction This hardware manual briefly introduces the X4 Fibre to Fibre RAID subsystem The X4 series comes with either six 6 or four 4 4Gbps Fibre channels on each RAID controller and supports sixteen 16 hot swappable Fibre hard drives in a 3U chassis The series is built around the 5 generation ASIC400 as the hardware RAID6 engine with a pre installed 512MB cache memory or another module of up to 2GB in size The 4Gb s Fibre Channels are interfaced through twelve 12 SFP ports to facilitate Figure 1 1 X4 Subsystem flexible fault tolerant host or expansion links More significant is the loop switch architecture that eliminates LIP overheads and improves FC loop performance Six 6 embedded SATA channels are used for cross controller communications providing exceptional bandwidth for synchronized cache operation The X4 series comes with redundant or single controller configurations and the most advanced fault tolerance features in the industry Host and drive channels are routed through separate I O boards Channels routed through an I O board are each from a different I O processor to reduce the chance of down time by component failure Dual redundant hot swappable cooling and power supply modules protect the subsystem from single point of failure The modular nature of the subsystem and the easy accessibility to all major components
77. isk drives in a dual loop consisting of two drive channels f Installing 4Gb disk drives in a dual loop e g CH2 and CH3 and 1 14 System Components Chapter 1 Introduction 2Gb disk drives in another dual loop e g CH4 and CH5 is allowed f not include both 4Gb and 2Gb disk drives in a logical drive configuration Cooling module speed detection If any of the embedded temperature sensors reports a reading breaching preset threshold the cooling modules will automatically raise its rotation speed RCC Redundant Controller Communications channels The X4 subsystem comes with six 6 dedicated SATA channels that are exclusively used for inter controller communications These paths are routed through a common backplane and are non user serviceable Docking connectors The FCI docking connectors at the rear of the controller boards connect the controller module to the backplane board 1 2 3 1 Controller Module Interfaces The controller interfaces are diagrammed and described as follows Ethernet Port Restore default LED Indicators button COM Ports Figure 1 18 RAID Controller Faceplate f COM ports Each controller module comes with two 2 COM ports 1 is used for accessing the firmware embedded text based configuration utility through RS 232 serial port connection management session should be invoked by a VT 100 compatible terminal emulation program An audio jack to DB9 cable is shipped with a
78. ith two 2 redundant hot swappable 530W PSUS which are located at the rear of the enclosure See Figure 1 12 The PSU is permanently mounted into a 2U canister especially designed to house both the PSU and a cooling module which is mounted at the rear end of the 2U bracket When a PSU is removed from the chassis the cooling module is also removed As shown in Figure 1 20 each PSU comes with a single power socket for power cord plug in and a power switch to turn the subsystem on and off A single LED indicates the PSU status When a power supply failure occurs such as over voltage the LED is lit constantly red An extraction handle at the rear of the PSU enables you to remove the PSU from the subsystem This should only be done if the PSU has failed and needs to be replaced X4 RAID Subsystem Installation and Hardware Reference Manual 1 20 A retention screw through the extraction handle secures the PSU to the enclosure To remove the PSU the retention screw must be removed first When installing a new PSU make sure that the retention screw has been firmly secured For the PSU specifications please refer to Appendix B 1 2 6 Cooling Modules Figure 1 21 Cooling Module PN IFT 9273ECFanMod The redundant cooling modules are contained within PSU modules When a PSU is removed from the chassis the cooling module within is also removed The subsystem is equipped with two 2 dual speed thermal fan cooling modules Th
79. k or cabinet A 2 rows x 16 characters LCD keypad panel is mounted on the left side and can be used for configuration and troubleshooting Please refer to Section 1 2 1 1 1 3 6 Rear Panel Overview The rear section for the dual redundant controller X4 subsystem is shown in Figure 1 12 and the single controller X4 subsystem is shown in Figure 1 13 The rear panel provides access to components located in the rear section A description of each rear panel component is given below X4 RAID Subsystem Installation and Hardware Reference Manual I O modules BBUs Controller module DP Switches e c PSU Cooling module Controller module PSU Cooling module Figure 1 12 X4 Dual controller Rear View modules BBU Controller module DIP Switches PSU Cooling module PSU Cooling module Figure 1 13 X4 Single controller Rear View The rear panel shown in Figure 1 12 accommodates the following components f RAID controller modules X4 comes with dual redundant RAID controllers and X4 comes with a single RAID controller Each controller contains a main circuit board associated interfaces a BBU slot and a DIMM socket See Section 1 2 3 About the redundant controllers in X4 For the dual controller subsystems the upper controller module is identified as Controller A while the lower controller module is identified as Controller B By factory default the Controller A is the primary controller
80. ll previously stipulated safety precautions see Section 2 3 must be strictly adhered to Failure to adhere to these precautions can result in permanent damage to the controller board resulting in lengthy delays f If one 1 controller fails in a dual controller configuration a transparent failover to the partner controller automatically takes place so that service is not interrupted When the failed controller is replaced a transparent failback will ensure that the I O workload is once again distributed between the partner controllers 5 2 2 Removing the Controller Module To remove the controller module step 1 Disconnect all cables from the controller module These include the Ethernet cable connected to the Ethernet port Fibre Channel host links and any cables connected to the serial ports e I 2 Remove the retention screws that secure the controller ejection levers to the chassis See Figure 5 1 Replacing Controller Module Components 5 3 X4 Installation and Hardware Reference Manual Ejection Levers Figure 5 1 Removing Screws from underneath Ejection Levers lel Step 3 Remove the controller module by pressing down the two 2 levers at the back of the controller module The controller module will automatically be eased out of the controller module bay See Figure 5 2 Figure 5 2 Pressing down the Ejection Levels EV step 4 Gently pull the controller module out of the subsystem Use an
81. ll times Although the cooling modules are fully redundant it is not advisable to run the X4 subsystem with fans in a single PSU module for an extended period of time If the cooling fans in the only remaining PSU module fail the subsystem will quickly overheat Detecting a failed cooling module If a cooling module fails the LEDs located at the back of the PSU module an audible alarm the firmware the RAIDWatch manager software or the Configuration Client software can notify you Replacing a cooling module Once you are notified that a cooling module has failed it should be replaced as soon as possible A failed cooling module should only be removed from the subsystem when you have a replacement module immediately available Replacing a Cooling Module If one of the cooling modules fails it must be replaced as soon as possible The cooling module is secured to the PSU module with the six 6 screws from the top To replace the cooling module follow the steps below Al WARNING The fan replacement process should be completed within five 5 minutes If the process takes too long the accumulated heat can damage the subsystem ua Step 1 remove the cooling module remove the PSU module first Please follow the PSU removal process listed in the previous discussion Cooling Module Maintenance 5 19 X4 Installation and Hardware Reference Manual t Step 2 Use a small size Phillips screwdriver to remove the six sc
82. ment The subsystem must be installed in a static free environment to minimize the possibility of electrostatic discharge ESD damage See Section 2 1 Use of anti static wristband and static control devices such as ionizers is recommended 2 Component check Before installing the subsystem you should first check to see that you have received all the required components See Section 2 3 If any items appear damaged contact your vendor for a replacement 3 Hard drives Up to sixteen 16 Fibre Channel interface hard drives 4Gb s or 2Gb s interface must be purchased separately and available prior to installing the subsystem See Section 2 7 2 1 X4 Installation and Hardware Reference Manual 2 2 4 Cabling All the fiber optical cables that connect the subsystem to the hosts SAN Storage Area Network and expansion enclosures must be separately purchased Please see Chapter 4 for sample topologies and configuration options RAID provides certified cables of different lengths and SFP transceivers Please refer to Appendix B for details SFP transceivers If the FC cables that were previously purchased do not come with SFP transceivers transceivers must be separately purchased and connected to the FC cables See Section 4 1 4 Memory modules If you wish to change the pre installed DDR RAM DIMM module the separately purchased module s must be installed before power up See Section 5 3 Rack installation The enclosur
83. ment When a PSU fails it should be replaced immediately However do not remove the PSU unless a replacement is readily available Removing a PSU without a replacement will cause severe disruptions to the internal airflow and the subsystem will overheat possibly causing irreparable damage to some of the subsystem components To replace a PSU please follow these steps E 7 Step 1 Turn off the PSU The power switch is located on each PSU s rear end panel See Error Reference source not found Disconnect the power cord that connects the faulty PSU to the main power source Remove the PSU retention screw that secures the extraction handle to the chassis See Figure 5 16 Figure 5 16 Removing the PSU Retention Screw 5 16 Replacing a Faulty PSU Chapter 5 System Maintenance 2 Step 4 Remove the PSU by grabbing the extraction handle and pulling the handle upwards The extraction handle should gracefully disconnect the PSU from the backplane connectors Once dislodged gently pull the PSU out of the subsystem If the subsystem is mounted in a rackmount rack use another hand to support its weight while removing the module See Figure 5 17 Figure 5 17 Removing the PSU Module amp t Step 5 Use the handle to gently pull the PSU out of the chassis WARNING f When a PSU is removed from the chassis the cooling module is also removed from the chassis f It is recommended that the replacement pr
84. mer step on it or throw it These actions could damage or deform it and internal short circuiting can occur possibly will cause functional defects acid leak and other hazardous results f If a BBU leaks gives off a bad odor generates heat becomes discolored or deformed or in any way appears abnormal during use recharging or storage immediately remove it from the subsystem and stop using it If this is discovered when you first use the BBU return it to RAID or your subsystem vendor 5 4 1 Replacement Procedure To replace a BBU please follow these steps amp Step 1 Remove the faulty BBU from the chassis Loosen the two 2 retention screws located on the sides of the BBU then pull out the BBU See Figure 5 8 Figure 5 8 Removing the BBU de dq Step2 Install the replacement BBU Align the BBU with the slot and then gently push the BBU into the slot Step 3 Secure the BBU to the subsystem by fastening the two 2 retention screws on the back of the BBU See Figure 5 9 eplacing a Faulty E X4 Installation and Hardware Reference Manual 5 12 Figure 5 9 Installing the BBU t Step 4 Reset the subsystem for the new BBU to take effect The LED should start flashing to indicate that BBU is being charged When the BBU is fully charged the LED will light amber constantly BBU LEDs Figure 5 10 BBU LEDs WV NOTE A new or replaced BBU takes at least 12 hours to charge to it
85. n Hard Drive Installation Prerequisites Hard drives for the subsystem must be purchased separately When purchasing hard drives the following factors should be considered Capacity MB GB Use drives with the same capacity RAID arrays use a Jeast common denominator approach The maximum capacity of each drive used in the array is the maximum capacity of the smallest drive Choose big drives with the same storage capacity Profile The drive trays and bays of the system are designed for 3 5 inch wide x 1 inch high hard drives Drive type The subsystem is compatible with Fibre Channel interface 4Gb s or 2Gb s hard drives Please ensure that you purchase the correct hard drives A CAUTION The hard drives and drive trays should only be installed into the subsystem after the subsystem has been mounted into a rack cabinet If the hard drives are installed first the subsystem will be too heavy to handle and the Enclosure Bay Numbering and Drive ID Allocation 2 7 X4 Installation and Hardware Reference Manual possible impact during installation may damage your disk drives A WARNING Handle hard drives with extreme care Hard drives are very delicate Dropping a drive onto a hard surface even from a short distance and hitting or touching the circuits on the drives with your tools may cause damage to the drives Observe all ESD prevention methods when installing hard drives Only use screws supplied with the drive
86. necting the SFP transceiver is based on the IFT 9270CSFP4GA01 If you are using a different SFP transceiver please refer to its related documentation Figure 5 11 Disconnecting the SFP Transceiver ds dq Step 2 Remove the I O module from the chassis Each host connection module is secured to the chassis by a retention screw that is closer to the center of the chassis as Replacing an I O Module 5 13 X4 Installation and Hardware Reference Manual diagrammed below Use a medium size Phillips screwdriver to remove the screw See Figure 5 12 CHO HO module CH2 amp CH4 module CH3 amp CHS I O module CH11 O module oo Qo oo oo OOo uj ojo 0 001000 000 amp 2 3 e Retention screws Retention screws Figure 5 12 Loosening the Retention Screw Do not remove the wrong screw Two screws can be found the faceplate One secures the module to the chassis while the other secures the faceplate to the metal bracket i Step 3 Remove the faulty module See Figure 5 13 Figure 5 13 Removing the Host Connection Module N NOTE A label with board serial number comes with the replacement board You may attach the sticker to the bottom side of the metal bracket before install the replacement The serial number can be used for future reference d Step 4 Install the I O module by aligning the host connection module to the module bay There a
87. not drop a hard drive Replacing a Failed Hard Drive Chapter 5 System Maintenance f Always be slow gentle and careful when handling a hard drive f Handle a hard drive only by the edges of its metal cover and avoid touching its circuits part and interface connectors 7 Step 1 Identify the location of the drive tray that contains a hard drive indicated as faulty You may use firmware utility or RAIDWatch software to locate a faulty drive The drive tray LED should also light red d Step2 Make sure the rotary bezel lock is turned to the unlocked position See Figure 5 22 i e the groove on its face is in a horizontal orientation Use a flathead screwdriver to turn the rotary lock to the unlocked orientation Figure 5 22 Drive Tray Bezel Lock Rotation 7 Step 3 Open the front flap by pushing the release button at the front of the drive tray See Figure 5 23 The front flap will automatically swings up into position Figure 5 23 Opening the Front Flap d Step4 Remove the drive tray by pulling it one inch away from the drive bay Wait for at least 30 seconds for the disk drive to spin down if the disk drive is removed for a different purpose e g cloning the members of a logical drive or Copy amp Replacing a Failed Hard Drive 5 23 X4 Installation and Hardware Reference Manual Replace and then gently and carefully withdraw the drive tray from the chassis Figure 5 24 Removing a
88. ocedure is completed in less than five 5 minutes to prevent the subsystem from overheating E dq Step 6 Insert the replacement module Make sure the extraction handle is held at its highest position so that the saddle notches on the sides of the handle can snap onto the metal protrusions along the interior walls of the PSU slot Push the PSU into chassis When you feel the contact resistance and the PSU is almost fully inserted use slightly more force and then push the handle downwards to secure the module Replacing a Faulty PSU 5 17 X4 Installation and Hardware Reference Manual Figure 5 19 Securing Using the Extraction Handle t Step 7 Secure the PSU to the subsystem by fastening the retention screw through the PSU extraction handle 09 Step 8 Replace the power cord that connects the PSU the main power source 09 Step 9 Power on PSU by flipping its power switch t Step 10 Ensure the replacement PSU is working properly by checking its LED The LED should light constant green when powered on 5 18 Replacing a Faulty PSU 5 7 5 7 1 5 7 2 Chapter 5 System Maintenance Cooling Module Maintenance Notes on Cooling Module Maintenance Redundant cooling modules The subsystem is equipped with four 4 cooling fans two 2 within each PSU module These cooling modules control the internal operating temperature of the subsystem and therefore their working integrity should be maintained at a
89. odels for host or drive connections See Section 1 2 8 1 1 3 7 Backplane Board An integrated backplane board separates the front and rear sections of the X4 subsystem This PCB board provides logic level signals and low voltage power paths Thermal sensors and devices are onboard to detect system temperature and PSU cooling module operating statuses This board contains no user serviceable components A WARNING The backplane board is not a user serviceable item Avoid contact with the backplane board for possible shorts with voltage traces can cause hazardous results X4 RAID Subsystem Installation and Hardware Reference Manual 1 2 1 2 1 System Components The X4 houses many active components and they can be accessed through either the front or rear panel The modular design of the active components facilitates their easy installation and removal Hot swap mechanisms are incorporated to eliminate power surges and signal glitches that might occur while swapping these modules Each component is further described below LCD Keypad Panel Figure 1 14 LCD Keypad Panel PN IFT 9273CHandLLCD The LCD keypad panel consists of a 2 rows x 16 characters LCD screen function keys and LED status indicators The LCD panel provides full access to all RAID configuration options and monitoring functions After powering up the subsystem the initial screen will display the subsystem s model name A different name can be assi
90. ologies 3 9 X4 Installation and Hardware Reference Manual Host side Connection DAS Physical Connections Sarvar 1 tJ RAID Subsystem gt Server 80 7 gt Figure 3 9 Host side Connection Dual controller 6 channel Version Configuration Details 1 2 CH4 and CHS are configured as host channels by factory defaults For simplicity of the diagram only one application server is connected through each Fibre Channel switch Many more servers can be attached in a switched fabric The onboard hub for each host channel is disabled Each host SFP port is defined as an A or B port In the event of hardware failure the following will occur f If one host link fails application servers can access an array through an alternate data path f If one controller fails application servers can access an array through an alternate data path and through an associated controller host channel ID passed down to the surviving controller f If an I O module fails data can travel through data links to the counterpart I O module Sample Topologies Chapter 3 Subsystem Connection 5 Switch zoning is one of the ways to create fault isolation You may also use a redundant pair of FC switches 6 The onboard hub for each channel can be manually enabled or disabled using the DIP switches There are no such options in firmware configuration utilities 7 For the relationship between RAID arrays and hos
91. on The subsystem requires an airflow clearance especially at the front and rear Handle subsystem modules using the retention screws ejection levers and the metal frames faceplates Avoid touching PCB boards and connector pins To comply with safety emission or thermal requirements none of the covers or replaceable modules should be removed Make sure that during operation all enclosure modules and covers are securely in place Be sure that the rack cabinet into which the subsystem chassis will be installed provides sufficient ventilation channels airflow circulation around the subsystem Provide a soft clean surface to place your subsystem on before working on it Servicing on a rough surface may damage the exterior of the chassis Dual redundant controller models come with two controller modules that must be installed into the subsystem Single controller modules ix X4 RAID Subsystem Installation and Hardware Reference Manual come with a single controller module and a metal sheet is placed over the lower controller bay at the rear of the subsystem Since single controller modules cannot be upgraded this metal sheet should NEVER be removed ESD Precautions Observe all conventional anti ESD methods while handling system modules The use of a grounded wrist strap and an anti static work pad are recommended Avoid dust and debris in your work area About This Manual This manual f Introduces the X4 RAID Subsyst
92. ooling fan has failed Table 4 9 Cooling Module LED Definitions The subsystem has a novel approach to stabilizing the temperature within the chassis 1 When temperature sensors detect an elevated temperature reading or the failure of any cooling fan power supply firmware will instruct the remaining cooling fans to operate at a high speed Status indicating LEDs X4 Installation and Hardware Reference Manual 2 Once the ambient temperature falls back within the safe range or the fault condition is corrected cooling fans will resume the low rotation speed 4 2 8 Default Threshold Values 4 3 4 10 The table below shows the default threshold values for various monitored aspects If any of these values are surpassed the alarm will sound Upper Threshold Lower Threshold 3 3V 3 6V 2 9V 5V 5 5V 4 5 12 13 2 10 8V CPU Temperature 90 C 5 troller Controller Board 80 5 Temperature Enclosure Ambient 40 C Temperature 0 C 35 C w BBU Table 4 10 Default Threshold Values The thresholds in Table 4 10 are default threshold values and may be changed To see how to change these values please refer to the Operation Manual on the CD that came with your system Audible Alarm Different controller environmental and operational parameters like temperature etc have been assigned a range of values between which they can fluctuate If either the upper or lower threshold is exceeded an a
93. oring Overview The subsystem is equipped with a variety of self monitoring features that help keep system administrators informed of the subsystem s operational status These monitoring features provide vital feedbacks to help you maintain the operational integrity Prompt response to warnings and notifications is necessary and helps ensure the longevity of the subsystem Self monitoring features include f Firmware The RAID controller s in the subsystem come with preinstalled firmware which can be accessed using either a PC hyper terminal connected through the COMI serial port or the LCD keypad panel Device status information can be obtained from the firmware The subsystem can be connected to a management computer through the COMI serial port using the included serial port cable Firmware functionalities are fully described in the firmware operation manual that came with your subsystem f RAIDWatch RAIDWatch is a fully integrated Java based Graphical User Interface GUI that came with the subsystem and can be used to monitor and maintain the subsystem over LAN WAN The RAIDWatch Panel View is customized to display a direct representation of subsystem components via its graphical interface RAIDWatch s graphical content panel allows you to quickly determine the operational status of all components Please refer to the RAIDWatch User s Manual for further details System Monitoring Overview 4 1 X4 Installation and Hardware
94. ory capacity are required the onboard DIMM modules must be replaced The DDR RAM DIMM module is installed on the back of the controller board Therefore to replace any of the memory modules the controller module must be removed from the subsystem and the controller board must be removed from the controller module To replace the DIMM module j t Step 1 Remove the controller module from the subsystem and place it on a clean static free surface For details please refer to the previous sections Figure 5 6 Removing the Controller Module Rear Panel ua t Step 2 Remove the previously installed DDR RAM DIMM module To remove the previously installed DDR RAM DIMM module press both DDR RAM DIMM socket latches outward the DDR RAM DIMM module will be ejected by the mechanism 5 8 DIMM Module Replacement Chapter 5 System Maintenance DIMM Socket Figure 5 7 Installing the DDR RAM DIMM module E Step 3 Insert the new DDR RAM DIMM module into the DIMM socket Align the new module to the DDR RAM DIMM socket Once the DIMM module has been correctly aligned with the DIMM socket gently push the DIMM module into the socket The latches on the sides of the socket will close automatically and secure the DDR RAM DIMM module into the socket i t Step 4 Install the controller module Once the new DIMM modules have been installed install the controller module back in its original location See Section 5 2 3 5 4 Repl
95. other hand its weight if the subsystem is mounted in a rack cabinet Place the controller module on a clean surface See Figure 5 3 5 4 Replacing Controller Module Components Chapter 5 System Maintenance Figure 5 3 Removing the Controller Module WARNING Unnecessary tampering with the controller module can cause severe and permanent damage Only move the controller module if it is absolutely necessary When replacing a controller module from the subsystem all anti static preventative techniques should be strictly adhered to 5 2 3 Installing a Replacement Controller To install a replacement controller ES dq Step 1 Remove the failed controller from the subsystem see Section 5 2 2 It is recommended to obtain a replacement with pre installed memory If the DIMM module is obtained otherwise refer to Section 5 3 for details on handling controller and DIMM module E me ivan your vendor and provide information of your surviving controller may access the System Information menu in the firmware configuration for details t E dq Step2 Install the replacement controller Make sure the levers at the back of the controller are at their lowest positions Align the controller module with the controller module bay Gently slide the controller module in See Figure 5 4 Replacing Controller Module Components 5 5 X4 Installation and Hardware Reference Manual 5 6 2 t
96. r and self protection state A BBU module has been charged for over twelve 12 hours A timer is embedded with the charger When this occurs the charger will enter a timer fault state The fault condition usually occurs with a brand new BBU or with a totally discharged BBU Charging will resume automatically if you remove and then re install the BBU If the charger detects elevated temperature during the charging process the charging process may also be prolonged BBU Warnings and Precautions f Install or replace the BBU with BBU s supplied by your X4 vendors only Use of battery cells provided otherwise will void our warranty Always dispose of a replaced battery in an ecologically responsible manner Dispose of used BBU s at authorized battery disposal sites only Do not use nor leave the BBU near a heat source Heat can melt the insulation and damage other safety features of battery cells possibly will cause acid leak and result in flames or explosion Do not immerse the BBU in water nor allow it to get wet Its protective features can be damaged Abnormal chemical reactions may occur possibly will cause functional defects acid Replacing a Faulty BBU Chapter 5 System Maintenance leak and other hazardous results f Do not disassemble or modify the BBU If disassembled the BBU could leak acid overheat emit smoke burst and or ignite f Do not pierce the BBU with a sharp object strike it with a ham
97. re guide rails along the interior of the module bay Insert the module properly and gently sliding it into until the back end connectors are mated See Figure 5 14 5 14 Replacing an I O Module Chapter 5 System Maintenance Guide rails Figure 5 14 Inserting the Host Connection Module amp ie Step 5 Fasten the screws previously removed to secure the I O module to the chassis LN ie Step 6 Connect the cabling and if necessary try reboot or manually issue a LIP from your application server across the links restored by the replacement module Some multi path software can automatically handle the failback process 5 6 Replacing a Faulty PSU 5 6 1 PSU Overview f Two 2 redundant PSUs The subsystem is powered by with two 2 530W fully redundant hot swappable PSUs These modules are accessed through the subsystem rear panel f PSU canister Each PSU is housed in a steel canister which also contains a removable cooling module When the PSU is removed the cooling module is also removed f PSU identification text Before you insert a replacement PSU be sure that it has the same identification ID text on its extraction handle as that shown on the remaining PSU Double check to avoid mixing a similar yet incompatible module from previous X4 series See Figure 5 15 Replacing a Faulty PSU 5 15 X4 Installation and Hardware Reference Manual ey NS SEA Figure 5 15 Label on the PSU Handle Immediate replace
98. rews from the top of the PSU module Figure 5 20 Removing a Cooling Module amp 7 Step 3 Remove the cooling fan assembly by the following steps Step 3 1 Use your thumb and middle fingers to seize the cooling assembly your thumb by the upper edge of the fan guard and your middle finger at the hemispheric indent Step 3 2 Tilt the fan a little bit to disengage the fan connector below and remove the fan assembly with a precisely vertical motion 5 20 Cooling Module Maintenance Chapter 5 System Maintenance 03 Step 4 i Step 5 Cooling Module Maintenance Figure 5 21 Removing a Cooling Module Install the replacement module by aligning it with the module bay on the PSU module and gently lowering it into The fan outlet should be aligned with the PSU faceplate and that the side with screw holes should be facing up Do this with a precisely vertical motion so that the cooling module s connector can correctly mate with the connector in the module bay Secure the module by fastening the screws you previously removed 5 21 X4 Installation and Hardware Reference Manual 5 8 5 22 5 8 1 5 8 2 Step 6 Reinstall the PSU module into chassis When powered on check if the fan fault LEDs are lit If not that means your cooling fans are operating properly Replacing a Failed Hard Drive Hard Drive Maintenance Overview f Hot swappable drive trays The drive trays are all hot swappable A
99. s full capacity Reset the subsystem whenever a BBU is replaced or added in order for the new BBU to take effect N NOTE The life expectancy of a BBU is more than one year Follow the procedures above to replace an old BBU with a new one in order to maintain fault tolerant subsystem functionalities An EEPROM will record the installation date and prompt you for a replacement when the one year expectancy is reached Replacing a Faulty BBU Chapter 5 System Maintenance 5 5 Replacing an I O Module The subsystem contains four 4 hot swappable I O modules Each module consists of SFP sockets mounted on a circuit board that connects to the backplane If any of these I O modules fails and your server has an alternate link to the array you can replace it online To replace an I O module please follow these steps NOTE The following instructions show only one of the I O modules You may follow the same procedures to handle other I O modules wv AN CAUTION The edges of FC ports without SFP transceiver can be sharp Wear a protective glove before working on these I O modules amp Step 1 Disconnect the SFP transceiver s and optical cables that are connected to the I O modules Press the latches on the transceiver The transceivers will be loosened from the SFP socket by the mechanism You may then pull out the transceiver module along with its fiber cable See Figure 5 11 S NOTE The procedure for discon
100. stem 32 to 36 inches rack depth Table B 3 Optional Accessories X4 Installation and Hardware Reference Manual This page is intentionally left blank B 4 Accessories Appendix Pinouts C 1 4G FC Connector Pinouts Each of the SFP host or expansion ports is comprised of a case bottom an EMI case and a 20 pin host connector These port sockets receive Small Form Factor SFP fiber optical and copper based transceivers Contact our technical support for an updated list of SFP transceiver modules that have been tested to comply with the sockets The pinouts are shown in Figure 1 and their definitions are shown below IEEE ver rxFauk rx Disable p MOD DEF 0 E Rate Select ros ven ven Figure C 1 4G FC Connector Pinouts 4G FC Connector Pinouts Pin Name Pin Description Transmitter Ground common with Receiver 1 VEET Ground 2 TraAuLT Transmitter Fault not supported Transmitter Disable Laser output disabled on 3 Tpis C 1 X4 Installation and Hardware Reference Manual high or open MOD DEH 4 i x Module Definition 2 Data line for Serial ID MOD DEH 5 x Module Definition 1 Clock line for Serial ID MOD DEF Module Definition 0 Grounded within the 6 0 module 7 Rate Select No connection required Loss of signal indication Logic 0 indicates 8 LOS
101. t IDs on individual host channels please refer to the firmware Operation Manual that came with your subsystem Expansion Links Enclosure ID Settings The first thing to do when connecting expansion SBODs is to properly configure an Enclosure ID on each expansion enclosure The Enclosure ID determines the physical loop IDs of the disk drives within the expansion enclosures Different ranges apply when using CH2 CH3 CH44CH5 for expansion links Usually it is not necessary to change the enclosure ID on your X4 RAID subsystem leave it as 0 0 0 Drive Channels Loop IDs in Expansion Enclosures CH2 CH3 Start from 16 to 111 IDs 0 to 15 already occupied by disk drives in the RAID enclosure CH4 CH5 Start from 0 to 111 if configured into drive mode Use a ball point pen to change the DIP switches 41 to 43 and select an appropriate combination See the diagram below for details Sample Topologies 3 11 X4 Installation and Hardware Reference Manual F16F RAID Subsystem Enclosure ID gt far n CH4 CH5 ES iQ zu niim s l als tc 17 rx UptozsBops Figure 3 10 Enclosure ID Settings and Physical Loop IDs 3 12 Sample Topologies Chapter 3 Subsystem Connection Dual controller SBOD Connection 1 In the configuration below CH4 and CH5 are manually configured as drive expansion channels CH2 and CH3 can also be used for drive loop
102. te DIP switch settings have been made The onboard hub has been enabled disabled as required and the speed of the host or drive loops selected as 4Gb s or 2Gb s if the need arises for the compatibility with 2Gb s devices Cable connections The subsystem has been correctly connected to host computer s FC switches or HBAs and SBODs o Power cables The power cords have been connected to the PSUs on the subsystem and plugged into the main power source Ambient temperature All the subsystem components have been acclimated to the surrounding temperature Power On Procedure When powering on the subsystem please follow these steps ua Step 1 Power on the Fibre Channel networking devices These devices include FC switches and any other such devices connected between application servers and storage Please refer to the documentation that came with your networking devices to see the power on procedure Power On Power Chapter 3 Subsystem Connection i Step 2 Power on the expansion enclosures that are not connected directly to the application servers if applied If you have connected the X4 subsystem to expansion SBODs or any external devices power on those devices before powering on the X4 RAID subsystem s d Step3 Power on the subsystem The subsystem should be powered on before the application servers To power on the subsystem please follow the description below f Using the power
103. ting PN IFT 9273CSlider36 PN IFT 9273CSlider32 The X4 subsystem is designed to fit into a standard 19 cabinet or rack Two 2 rackmount brackets are available from RAID for installing the subsystem into a rack or cabinet Please contact your system vendor for further details The subsystem should be installed in the rack or cabinet before the hard drives and the drive trays are installed If the drive trays with the associated hard drives are installed the subsystem will be too heavy to handle When installing the subsystem into a rack or cabinet it is advisable that three people assist in the mounting process To install the subsystem into a rack or cabinet please refer to the installation instructions that came with the rackmount brackets Installation Overview 2 7 2 8 2 8 1 Chapter 2 Hardware Installation Enclosure Bay Numbering and Drive ID Allocation The front panel of the X4 enclosure houses sixteen 16 hard drives in a 4x4 configuration as shown in Figure 2 2 When viewed from the front drive bays slots are numbered 0 to 15 from the left to the right and then from the top to the bottom w y s i Figure 2 2 Drive Slot Numbering Sequence 9 The drive numbering sequence is important when identifying a failed drive Removing the wrong drive can fatally fail a RAID array RAID3 5 Failing two members destroys a RAID6 array Hard Drive Installatio
104. ton at the bottom to reset the subsystem 3 8 Configuration Options Chapter 3 Subsystem Connection 2 NOTE Please refer to RAIDWatch User s Manual that came with the product CD for more information about the RAIDWatch manager 3 4 Sample Topologies io IMPORTANT Comparing with previous X4 series there are six 6 dedicated RCC Redundant Controller Communications channels strung between partner RAID controllers in X4 There are no longer configurable RCC or Drive RCC options These RCC SATA channels are not user configurable Fault tolerant Links f primary concern for configuring host side data links is to eliminate single points of failure It is therefore recommended that the data links between application servers and storage are configured as fault tolerant pairs including all devices such as FC switches and HBAs If a data path is disconnected the alternate data path can continue the service f Up to six 6 Fibre Channel SBODs can be added with CH2 and CH3 connection for capacity expansion Note that the 16 disk drives within the X4 chassis take up the first 16 physical loop IDs f Up to seven 7 SBODs can be added for capacity expansion if CH4 and CHS are manually configured as drive loops With fault tolerant host links it is also necessary to implement management software such as RAID s EonPath M packages to manage the fault tolerant data links to a RAID volume Sample Top
105. udible alarm will automatically be triggered The thresholds are default threshold values and can be adjusted To see how to change the values please refer to the firmware operation manual on the CD that came with your system The alarm will also be triggered when an active component within the subsystem fails If the subsystem manager is onsite and hears an alarm the manager must read the error message on the LCD keypad panel RAIDWatch session or a PC terminal to determine what has triggered the alarm After determining what has occurred the manager must take appropriate actions to rectify the problem Audible Alarm Chapter 4 Subsystem Operation and Monitoring Al WARNING If an alarm is triggered it is necessary for you to determine the cause of the problem If the audible alarm is ignored and the problem is not rectified unexpected damages may ensue 4 3 1 Failed Devices If any of the following devices fail the audible alarm will be triggered f f f f f f Audible Alarm RAID controller Cooling module PSU BBU Hard drive Sensors and presence detection circuitries 4 11 Chapter 5 System Maintenance 5 1 Overview 5 1 1 About Subsystem Maintenance Constant monitoring and maintenance of your X4 subsystem minimizes system downtime and preserves the working integrity of the system for a longer period of time If any of the subsystem components fail they must be replaced as soon as possible
106. y Configuration The configuration below uses CH2 CH3 CH4 and CH5 for making two separate dual loops to expansion enclosures When configured as drive loops the onboard hub with CH4 and CH5 should be enabled This configuration allows capacity expansion to terabytes of disk space and uses an in band SES monitoring method that requires no additional management links The maximum number of SBODs is limited to the available loop IDs 224 IDs on two dual loops across 4 drive channels gt Application Servers lc SAN CHO p CH2 M CHS iR CMS 2 Up to 6 58005 96 drives Up to 7 SBODs 112 drives Figure 3 13 X4 with Maximum Fault tolerant Capacity Expansion Sample Topologies 3 15 X4 Installation and Hardware Reference Manual 3 16 Single controller RAID to Dual controller SBODs A single RAID controller configuration can still enjoy the path redundancy by the dual controller SBODs The configuration below uses CH2 CH3 CH4 and CH5 for making two separate dual loops to expansion enclosures When configured as drive loops the onboard hub with CH4 and 5 should be enabled This configuration allows capacity expansion to terabytes of disk space and uses an in band SES monitoring method that requires no additional management links The maximum number of SBODs is limited to the available loop IDs 224 IDs on two dual loops across 4

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