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1. INDEX access 1 3 2 10 4 3 ASK 4 5 automatic startup 4 2 4 4 blocks 2 7 BOOT 1 2 2 5 2 10 4 2 B 1 boot slot 2 3 BOXCURSOR 4 5 CHAIN 4 7 chaining 3 9 CHAINSTUFF 3 9 CLEAR 4 4 CMDUNIT 3 1 3 2 COMMAND 3 4 3 5 command command 2 12 Command list C 1 CONSOLE 2 8 CONTINUE 4 6 CREATE 2 1 ctrl shift N 2 5 CVAL 2 5 3 9 4 1 83 ic INDEX deleting volumes 4 10 disclaimer ii disk controllers Pascal 2 3 DONEFLAG 3 6 drive status 2 4 2 8 drives 2 3 80 column cards 1 1 error messages A l lt ese gt lt return gt 2 5 extensions to operating system file server commands 2 5 GETPARM 3 10 initializing virtual diskettes keyboard network commands 2 5 l 2 2 12 4 1 83 INDEX library volume 1 3 4 14 locks 2 10 LOWERCASE 4 5 MININET 3 7 multiple file server commands 2 13 multiple file servers 2 13 NESTAR START 2 4 4 3 4 4 NET 1 2 2 1 4 5 NET inputs 2 11 network utilities 4 1 NETUNIT 3 1 3 4 NETWORK LIBRARY 3 1 NEWCMDFLAG 3 6 NEWS 4 7 NIL 3 4 3 5 NOCHECK 2 8 NOECHO 2 10 4 5 OFF 2 10 operating system extensions l 1 4 1 83 I 3 INDEX parm 3 9 Pascal diskette name 1 2 Pascal operating system 1 1 pathname 1 2 PRINT 2 2 4 4 PRINT lt anystring gt 2 12 PRINTER 2 9 programming 3 1 protection 1 3 QUIT 2 11 4 7 RC 3 4 3 5 reading a station address 3 8 REAL 2 7 2 9 real diskettes 1 3 real drives 2 4 REMIN 2 9 REMOUT 2 9 RESPONSE
2. ERRORS Show 59 69 59 TYPE SYSTEM Not an error The volume mounted on the drive for which you did a SHOW TYPE is a system volume T S 60 SHOW OPTION NOT RECOGNIZED The operand of a SHOW command was not recognized Check the spelling and make sure there are no extraneous items in the command 61 DRIVE REQUIRED For the SHOW TYPE command you must specify the drive number on which the volume is mounted Example SHOW TYPE D12 62 NOT CURRENTLY MOUNTED The drive number specified has no volume mounted on it by the file server 63 TYPE APPLE CP M not an error The volume mounted on the drive for which you did a SHOW TYPE is an Apple CP M volume T C 64 NO DEFAULT DIRECTORY SET Not necessarily an error This response to the SHOW DIR command indicates that there is no default directory established for this station by the file server A 10 4 1 83 ERRORS 65 TYPE APPLE PASCAL Not an error The volume mounted on the drive for which you did a SHOW TYPE is an Apple Pascal volume T P 66 TYPE APPLE DOS Not an error The volume mounted on the drive for which you did a SHOW TYPE is an Apple DOS volume T D 67 TYPE BINARY Not an error The volume mounted on the drive for which you did a SHOW TYPE is a binary volume T B 68 TYPE DIRECTORY Not an error The volume mounted on the drive for which you did a SHOW TYPE is a direc
3. If esc is pressed on the Apple keyboard while the BOOT program is downloading the station dependent profile is ignored and the default profile is used This is useful if a station is setup to autoboot a particular volume but you wish to interrupt the autoboot process and boot a different volume 4 1 83 B 5 COMMAND LIST Appendix C Quick Reference List File Server Commands CREATE pathname type size sectors protection drive usage creates and optionally mounts a new virtual disk DELETE pathname deletes a virtual disk from system HELP command name or command name displays list of commands or syntax of specified command LIST pathname VERBOSE NESTED lists entries in default or specified directory LOCK lockname usage locks lockname for exclusive EXC or shared SHR use Default EXC MOUNT pathname drive usage establishes correspondence between a virtual disk and drive number OFF initializes user station and downloads BOOT software 4 1 83 C 1 COMMAND LIST PROTECT pathname protection modifies passwords or access rights for a virtual disk or directory RENAME oldpathname newname renames specified FS file SET DIR pathname sets default directory SET GRPPW password PRVPW password sets default group or private password SHOW DATE displays date as MM DD YY SHOW INFO displays information about a virtual volume SHOW DI
4. PLAN 4000 File Server Apple II Pascal User s Guide SC40 0501 NESTAR SYSTEMS INCORPORATED PLAN 4000 TM FILE SERVER APPLE PASCAL USER S GUIDE DISCLAIMER OF WARRANTIES The information in this document has been carefully reviewed and is believed to be reliable nevertheless Nestar Systems Incorporated makes no warranties either express or implied with respect to this manual or with respect to the software described in this manual its quality performance merchantability or fitness for any particular purpose The entire tisk as to its quality and perforhan e is with the buyers The software herein is transferred AS Is Nestar Systems Incorporated reserves the right to make changes to any products described herein to mprove their functioning Me ai designs Nesta Programs are licensed Products whose use is d ffhned in the Nestat System Software License Agreement Server Programs usually require a separate license Tor each machine on which they run TE In no event will Nestar Systems Incorporated be liable for direct indirect incidental or consequential damages at law or in equity resulting from any defect in the software even if Nestar Systems Incorporated has been advised of the possibility of such damages Some states do not allow the exclusion or limitation of implied warranties or Papility for incidental or consequential dam
5. SETPROFILE The profile records are file server binary T B files each 2 blocks long size 2 B The record MAIN SYSTEM PROFILE nn is used when station Snn is powered on If a station s profile is not present in MAIN SYSTEM PROFILE the profile for a default MAIN SYSTEM PROFILE 00 is used by BOOT Therefore MAIN SYSTEM PROFILE 00 must be present The default 00 profile distributed with the system can also be changed using SETPROFILE 4 1 1 How To Use SETPROFILE To use SETPROFILE boot the virtual volume MAIN SYSTEM SETPROFILE The program will be executed automatically SETPROFILE will display the number of the Station being used and will ask for the number of the station for which a profile is to be set When modifying a profile a password may be specified for the profile by entering a colon and the password after the nn station number The program then prompts for each allowed default 4 2 4 1 83 SETPROFILE Boot volume MAIN Boot automatically NO Pascal access rights RW UPD DOS access rights RW UPD Library volume MAIN LIB APPLE2 UCSD PASCAL Station name Virginia If no profile has already been set for the indicated station the prompts display the defaults set in the system 00 profile shown in the example above which is used if no individual station profile exists Otherwise the prompts list those defaults currently set in the station When configuring a stations pr
6. see the description of NETUNIT for more information This error does not occur from most user level programs such as NET 99 USER ABORT The network abort key lt CTRL gt lt SHIFT gt N was pressed while a network transaction was queued up or in progress The transaction was aborted A 14 4 1 83 ERRORS File System Errors 100 140 101 END OF FILE OR RECORD OUT OF RANGE An attempt was made to read a block or sector of a volume which is outside the legal range for that volume 102 FILE NOT FOUND The volume specified by the pathname was not found or one of the directories in the pathname was not found Check the spelling of each filename in the pathname If the name does not begin with a slash check that the current default directory is the correct one 103 BAD DELIMITER IN PATHNAME A delimiter other than or was found ina pathname Make sure that you have not omitted a comma separating the pathname from other operands in the command 104 FILE NAME OR PASSWORD TOO BIG A single filename the part between slashes in a pathname or password the part after a colon in a pathname is longer than the maximum of 15 characters 105 NO ACCESS FOR READ TO DIRECTORY You have been denied read access to a directory which is part of the specified pathname 4 1 83 A 15 ERRORS 106 NON DIRECTORY FOUND IN PATHNAME One of the names in the pathname other than the last name identifies a volume which is not a
7. where nn is the station number on whose behalf you wish to issue the command file server console only 13 ILLEGAL NUMBER NEGATIVE OR TOO BIG The number was less than 0 or bigger than 32767 Number may be specified in decimal or in hexadecimal preceeded by Examples 42 1A3 19 HELP FILE NOT FOUND There is no HELP file for the word used as an operand of the HELP command Use the HELP command with any parameters to see what the possible HELP parameters are The system manager has the option of removing all HELP files to save space Create 20 25 20 TYPE PARAMETER REQUIRED T The type parameter was missing Example T D 4 1 83 A 5 ERRORS 21 SIZE OUT OF RANGE OB OR 32752B The value of the SIZE parameter was negative or greater than 32752 blocks Each block is 512 bytes Other units that can be specified are C characters S 256 byte sectors and K 1024 bytes If the units are omitted B 512 byte blocks is assumed Examples SIZE 280 SIZE 2000S 23 SIZE PARAMETER REQUIRED WITH T B T The SIZE parameter must be specified to create a binary volume The size may be an overestimate of the size of the data to be BSAVEd into the volume but it must not be less 24 SIZE OUT OF RANGE IC OR 48K The limits on the size of a binary T B file are between 1C one byte and 48K 49152 bytes regardless of the units used in the specification Delete 25 29 29 CURRENTLY MOUNTE
8. 1 is printed on the user station screen The user is then asked whether the startup program should continue or not Typing n return quits the program and the Pascal command line comes up Typing lt return gt causes the startup to continue The program then sets the Pascal system date to the current file server date The screen s boxcursor and the lowercase options are turned on if an MnR Superterm card is being used No indication of these two actions is given because noecho is specified A user id is then set in the system and drives 3 6 7 8 and 9 are set to virtual Chapter 2 discusses real and virtual drives in the Pascal environment A default partial pathname is set as well as a private password that may be required to access directories or virtual volumes 4 8 4 1 83 NESTAR START The virtual volume MAIN USERS ABC TEMP is mounted on drive 9 for shared read write use Finally the user is prompted to display the System s news Pressing lt return gt however is equivalent here to no 4 1 83 4 9 TREEWALK 4 3 TREEWALK Utility Program TREEWALK allows you to apply NET program network commands to more than one virtual volume and or directory at a time When you specify a command and directory TREEWALK will apply that command to the directory to all volumes and directories listed in that directory and to all volumes and subdirectories beneath that directory To use TREEWALK X ecute
9. 50 CMD NOT ALLOWED FROM THIS STATION The BSAVE BLOAD BRUN commands may only be executed from an Apple user station 51 NOT BINARY The pathname indentifies a volume which is not binary T B Only binary volumes can be used for BSAVE BLOAD or BRUN commands 52 NOT PREVIOUSLY SAVED The binary volume was created but has never had any data written into it using the BSAVE command It can not not be used with BLOAD or BRUN until it has been BSAVEd into A 8 4 1 83 ERRORS 53 FROM PARAMETER REQUIRED For BSAVE the FROM parameter which specifies the memory area from which data is to be taken must be provided Example FROMs 1000 54 SIZE PARAMETER REQUIRED For BSAVE you must provide the SIZE parameter on the BSAVE command to indicate how much data is to be saved This value must be less than or equal to the size of the volume specified on the original CREATE command Example SIZE 256 C 55 FILE WAS THERE REP NOT SPECIFIED Data has already been saved in the binary volume To replace that data you must specify REPLACE as a parameter in the BSAVE command Set List 56 58 57 FILE IS NOT A DIRECTORY The pathname given in a SET DIR command identifies a volume which is not a directory T Y 58 USE SET TIME YYMMDD HH MM If the date parameter was supplied it was incomplete or contained invalid fields If the time of day parameter was supplied it contained invalid fields 4 1 83 A 9
10. Volumes 1 2 Chapter 2 Using the Network 0 Virtual Diskettes of Variable Size 2 1 1 Drives cecccccccvcccccceseseccccecses 2273 2 The NET Program Entering File Server Commands from the Keyboard 2 5 2 3 Initializing a Virtual Diskette in Pascal eseoccoeceoeceoecoconuoaoeneoeoe ZZ12 2 4 Multiple File Servers 2 13 Chapter 3 Programming 3 1 Using File Server Commands Within a Pascal Program cecscccccccccccsccscces J 3 2 A Sample Program ccoccccccvcccccssccce J 7 3 3 Reading the Station Number from a Program Seer Cee eee E Te ee Cee QUO 3 4 The Nestar CVAL Convention 3 9 Chapter 4 Additional Utilities 4 0 Introduction eeococsecesecccceoccoueoseoo 4ml amp l VSETPROPILE 3s 200s is Quo E saaa 492 4 2 NESTAR START Command Program 4 4 4 3 TREEWALK Utility Program eeccccoccoocon 4210 CONTENTS 4 4 ZAPPASCAL Utility PYOgZramecccccccvecs 4 13 Appendices a A Error and Information Messages A 1 The Boot Progbddoisessisea yon kaa ois B 1 Descript on dee ee eee eee ee dese B 1 Operation of BOOE w er w w aaa anv RR en B 2 oj vj e Ne e Quick Reference List File Server Commands eoeooccoccececccceccccococe C 1 Index Bibliography Reader Comment Form C o vi 4 4783 STARTHE ARAS LAS Pout Chapter 1 Starting Up an quer tme 1 0 Introduction This guide assumes that you are familiar with the Apple microcomputer and
11. Y Same as CONTINUE except that a carriage return only response means no Sets a file server lock with the id specified The convention is that id are your initials and the lock name generated is USER id This allows a user to issue the FS command SHOW ALL LOCKS to determine the initials of the users currently using the network Displays the date and time on the screen The format is 4 1 83 NEWS NESTAR START Day dd Mon Year hh mm ss Displays general system information contents of LIB NEWS TEXT CHAIN program name parms Passes control to the SET DATE QUIT 4 1 83 program named Note that control is never returned to the startup program so commands following this command are not processed Sets the Pascal system date to the current date from the file server as if the user had used the D ate command in the Pascal Filer Exits the NESTAR START program NESTAR START Example this is abcl startcmd text PRINT PRINT lt gt THIS IS MAIN USERS ABC 1 lt PRINT continue y set date noecho boxcursor noecho lowercase noecho set user abc noecho net set drive 3 6 7 8 9 virtual net set dir main users prvpw xxx net mount abc temp d9 rw shr PRINT ask n news prompt display current news This list of program commands begins with a comment ignored by the startup program this is startcmd text When the volume is booted THIS IS MAIN USERS ABC
12. is turned off at a user station all file server virtual volumes that are mounted remain mounted Locks remain held and default directory if any remains set If files are mounted EXC RW for example they will not be available to other users It is the OFF command which is automatically issued by the Network BOOT program that unmounts all volumes Thus in order to free memory space and leave volumes available to other stations it is 2 10 4 1 83 NETWORK necessary to use the OFF command or to turn the machine off and on again to unmount volumes 2 2 7 SPOOL TO SPOOL OFF SPOOL TO specifies the device or file to which all file server responses will be routed The redirection will continue until SPOOL OFF is issued If the specified file already exists or is the same as the current spool file the user will be prompted to overwrite it To determine the current spool file simply enter SPOOL TO without a destination To specify device and file SPOOL TO device name file name where device name can be for example 6 or PRINTER and file name can be n filename where n is a unit number The file name will be appended with the suffix text if it is not already specified and if the last character is not a period When spooling to a file the file will be properly closed after any of the following 1 SPOOL OFF 2 SPOOL TO some other file or device 3 QUIT from NET 4 Write error 2 2 8 Other NET Inputs
13. operating system will be loaded into your machine just as happens when you boot a real diskette from a local minidisk drive Remember that a virtual volume has two names its pathname hard disk file name and its Pascal volume name which is used just as a real diskette s Pascal name is used Just as the network uses virtual volumes it uses virtual drives These are discussed in the File Server User s Manual and in Chapter 2 of this guide To use a virtual volume you must mount it on that is insert it into a virtual drive Volumes are created mounted and otherwise handled by executing a program called NET and issuing commands from it Just as the Pascal Filer program manipulates files within a diskette real or virtual the NET program manipulates virtual volumes and the drives they are mounted on In this respect the NET program is a Filer for the network s shared hard disks 1 22 4 1 83 D ET fou map Xe pisces STARTUP u In respotise to the VOLUME TO BOOT prompt enter the pathname of a virtual Pascal volume and press Return The Network Boot program Appendix B will recognize that a Pascal volume is to be booted and will mount the volume for you on drive 4 You can t mount it yourself using the NET program because the NET program isn t available until the boot process is complete Most networks use a shared library volume which contains programs and data useful to all network
14. the station number 1 to 255 from within a program To obtain the station number issue to the file server the command SHOW STATION and read the corresponding response parsing it to obtain the station number Using Pascal follow the examples given in the previous sections using one of the procedures in the NETUNIT unit to issue the command SHOW STATION The response string will have the form STATION IS nn By parsing this string you can obtain the station number in hexadecimal form The station number can be obtained in decimal form from any Pascal program that uses the unit NETUNIT When such a program is executed part of the initialization process for the NETUNIT unit is the loading of the station address of each network interface card into an array called MYSTN MYSTN ARRAY 0 7 OF INTEGER Thus if the NIC ina user s station is in slot 6 the address of the NIC can be found in MYSTN 6 3 8 4 1 83 PROGRAMMING A value of O in the MYSTN array for a particular slot indicates that the slot does not contain a network interface card 3 4 The Nestar CVAL Convention Pascal Release 1 1 allows one program to chain to another and provides for a global string called CVAL to be passed as a parameter See Pages 2 and 3 of the Addendum to the Apple Pascal Language Reference Manual Apple Part 031 0101 00 for a discussion of chaining programs in the Apple Pascal environment To use these procedures in th
15. the user wants to execute file server or local commands just as the NET utility program does then the Pascal procedure CMD or CMDLOOP in CMDUNIT should be used The CMD procedure has the form CMD command options where command is a string variable whose value is the file server command or local command to be executed options is an integer variable which that be set to O don t echo command if error 1 do echo command if error 222 4 1 83 PROGRAMMING Examples CMD show mounts 0 CMD show drives 0 CMD mount MAIN A D11 MOUNT MAIN B d12 1 For programs in which the user enters file server or local commands from the keyboard until the user types QUIT or lt escape gt the CMDLOOP procedure is provided It has the form CMDLOOP PROMPT where PROMPT is the string variable whose value is the prompt to be issued to the user Examples CMDLOOP CMDLOOP FS command or QUIT The following program COMMAND demonstrates the use of CMDLOOP to execute file server commands This is in fact the complete source listing of the NET ut lity program PROGRAM COMMAND USES U LIB NETWORK LIBRARY NETUNIT CMDUNIT BEGIN CMDLOOP END 4 1 83 3 3 PROGRAMMING 3 1 2 NETUNIT To execute a file server command and get the return code back for evaluation by the program use the NFSCMD procedure The procedure has the form RC NFSCMD NIL COMMAND RES
16. users such as NET If such a volume exists it will be mounted automatically at startup for READ ONLY use on drive 5 The actual name of the shared library volume is specified in the Profile volume corresponding to the address of your workstation Your boot volume is mounted for READ WRITE UPDATE use Usage access and protection are discussed in Chapter 3 of the File Server User s Manual The network SETPROFILE utility program allows you to set defaults and autoboot your volume if desired To use SETPROFILE see Chapter 4 After booting your volume you can use both real and virtual diskettes See Section 2 1 for a discussion of real and virtual drives mon 4 1 83 1 3 NETWORK Chapter 2 Using the Network 2 0 Virtual Diskettes of Variable Size The NET program is used to issue Filer like commands to create and manipulate files called virtual volumes on the network hard disks NET s CREATE command for example is used to create virtual volumes CREATE is discussed in Chapter 5 of the File Server User s Manual To use CREATE X ecute 5 NET or LIB NET from the Pascal Command line where 5 or LIB is the shared network library volume The NET program is described below in Section 2 2 Once a volume has been created it will look like a real blank diskette to your operating system formatted for Pascal Like a real blank diskette it will have to be Zeroed initialized To Zero a newly crea
17. with Apple Pascal The PLAN 4000 system supports Apple user stations running with Apple Pascal Version l l based on U C S D Version II 1 In order to use Pascal on a given user station the microcomputer must have a minimum 64K of RAM Three 80 column boards are supported ALS Smarterm M amp R Sup r term and Videx Videoterm Their use is optional but recommended A local 5 25 disk drive is optional and can be used to read and write data in standard Apple Pascal format The Pascal Operating System runs on the network just as it does on a standalone microcomputer However there are extensions which will be covered in this guide Virtual diskettes of variable size Chapter 2 Virtual and real disk drives Chapter 2 Issuing file server commands with the NET program Chapter 2 Issuing file server commands within a user s program Chapter 3 STARTUP PP AAT ab ef l l Starting Up Booting Virtual Volumes At power njot your station will Ma the N stat logo and prompt Ee es Ye Wigs vou To B007T s described in the File Server User s Manual m allows you to share hard disk space with other users Hard disk space is divided into virtual volumes which are files formatted to resemble real diskettes Instead of inserting a real diskette at startup you type in the pathname the hard disk file name of a virtual volume that is formatted to look like a Pascal diskette The Pascal
18. you attempt to write into a virtual volume that has not been mounted with READ WRITE access Error 64 occurs when for example you have created a volume and Zeroed it to a larger size than you created that is when the system attempted to read or write past the end of the volume This might also occur if a block number is given that is outside the range of the file Error 64 may also occur if the network hard disk has been damaged A 2 4 1 83 ERRORS General Syntax 0 19 0 0K Not an error The command was syntactically correct and was executed without error 1 ILLEGAL COMMAND The command verb cannot be recognized or cannot be executed from this user station operating system environment The command verb is the first word of the command and must be separated from the rest of the command with one or more blanks 2 NAME PARAMETER REQUIRED The first parameter of the command must be a non null pathname 3 UNRECOGNIZED PARAMETER A keyword parameter was not recognized Check the spelling carefully and make sure that it is properly separated from the previous and following items with commas 4 ILLEGAL DRIVE NUMBER A drive number must be specified with D followed by an integer in the range 3 to 12 Example D9 5 ILLEGAL STATION NUMBER A station number must be specified as a two digit hexadecimal number preceeded with in the range 1 to FE Example 2D 4 1 83 A 3 ERRORS 7 PARAMETER
19. 0 VIRT SLOT 6 STN SFE 6 VIRT SLOT 6 STN SFE 7 VIRT SLOT 6 STN SFE 8 VIRT SLOT 6 STN SFE 9 REAL 10 VIRT SLOT 6 STN SFE 11 VIRT SLOT 6 STN SFE 12 REAL Here a user station has used SET DRIVES to change drives 9 and 12 at his station to real These drives are now available for use with real floppy disk drives When set real drive 3 is unusable and drives 6 8 are used by the Pascal devices PRINTER REMIN REMOUT respectively 4 1 83 2 9 NETWORK 2 2 4 SET FS SLOT n STN nn Sets the default virtual channel for file server commands issued by NET or by subsequently run programs to the values specified The initial default file server channel is the slot booted from usually slot 6 and station SFE 2 2 5 NOECHO Commands from a file initiated by filename are usually displayed when they are executed NOECHO suppresses this 2 2 6 OFF OFF initializes your user station unmounts all MOUNTED files unlocks all locks resets any default directory and private or group passwords OFF BRUNS the BOOT program In order to increase overall system efficiency the OFF command should be given whenever a user is through using his or her Apple This frees the memory and other resources assigned to the user station Giving this file server command is equivalent to turning power off and on at the workstation Note that when the power
20. 12 ABC2 800 VIRT SLOT 6 STN SFE In this example the user has a virtual volume with the Pascal volume name ABC1 mounted on drive 4 and a virtual volume with the Pascal volume name ABC2 mounted on drive 12 Drives 3 through 12 have been set to virtual The file server station number is SFE The shared library virtual volume is mounted on drive 5 Normally SHOW DRIVES will read in all the volume names to make sure the information is current However the NOCHECK option can be used to suppress this check 2 2 2 SHOW FS This command displays the default virtual channel consisting of a network card slot number and file server station number to which file server commands are currently being sent 2 8 4 1 83 NETWORK 2 2 3 SET DRIVE S n n REAL VIRTUAL SLOT n STN Snn This command sets the drive number or numbers given to the status specified If REAL is specified then the real microcomputer disks are used if present If VIRTUAL is specified then the drive is a virtual drive connected to a file server The SLOT and STATION number of the file Server can be specified if the drive is to be set virtual to a file server other than the current default seen by issuing SHOW FS Drive numbers in the range 3 to 12 are available For example set drives 9 12 real show drives DRV T NAME BLKS STATUS 1 CONSOLE REAL 2 SYSTERM REAL 3 VIRT 4 ABCl 800 VIRT SLOT 6 STN SFE 5 LIB 180
21. 21 UNINITIALIZED DISK The disk unit has not been initialized All disks must be formatted and initialized using the file server Format Disk utility see the File Server Installation and Operation Manual 122 WRONG SOFTWARE VERSION The disk format is not compatible with version of the file server currently running This error cannot occur with any file servers so far released 123 FILE ALREADY EXISTS The file you have asked to create or the new mame used in a RENAME command already exists in the directory 124 DISK I O ERROR SUBCODES x y A hardware I O error was detected The details of the error are described in the subcodes see the table of I O errors for more information 125 VERIFY FAILED BAD MEMORY All disk write operations are verified by reading back the recorded data and comparing it to the data stored in memory This error indicates that the disk data did not compare correctly It sometimes indicates a memory error in the file server and not a disk error 4 1 83 A 19 ERRORS 128 BAD UNIT NUMBER IN PATHNAME The first item after the initial slash ina pathname is a number but it is not in the legal range for unit numbers 1 to 4 130 NEED PRIVATE PASSWORD FOR PROTECT In order to execute the PROTECT command for any volume the private password must be specified in the pathname or as a default private password The password must be specified whenvever the volume has a non null private password
22. 3 4 3 5 serial card SET DATE 4 7 SET DRIVES 2 9 2 14 SET FS 2 10 2 14 SETPARM 3 10 1 4 4 1 83 INDEX SETPROFILE 1 3 4 2 SETUSER 4 6 shared library volume 1 3 SHOW DRIVES 2 8 SHOW FORMDATE 4 6 SHOW FS 2 8 SHOW STATION 3 8 size volume 2 1 2 2 SLOT 2 10 slot 2 4 SPOOL 2 11 STARTCMD 2 12 4 4 starting up l 1 4 2 4 4 STARTUP program 4 3 STATION 3 8 Station address 3 8 Status drive 2 4 2 8 STN 2 8 2 10 SYSTEM LIBRARY 4 13 SYSTEM MISCINFO 4 13 SYSTEM PASCAL 4 13 SYSTEM STARTUP 4 13 SYSTERM 2 8 TREEWALK utility 4 10 unit number 2 7 usage 1 3 2 10 4 3 USES 3 2 using the network 2 1 utilities network 4 1 4 1 83 I 2 INDEX video cards l 1 VIRTUAL 2 7 2 9 virtual diskettes 1 1 1 2 2 1 2 12 virtual drives 1 1 2 3 volume name 2 7 volume to boot 1 2 volumes variable size 2 1 virtual 1 1 1 2 ZAPPASCAL 4 13 ZERO 2 1 Other filename 2 12 2 7 nn 2 10 3 8 lt anystring gt 2 11 4 4 1 6 4 1 83 PLAN 4000 PUBLICATIONS General Information Manual PLAN 4000 Physical Planning and Installation Manual File Server User s Manual File Server Apple Pascal User s Guide File Server Apple DOS User s Guide File Server Apple CP M User s Guide File Server Apple SOS User s Guide File Server IBM PC DOS User s Guide File Server IBM PC UCSD p System User s Guide File Server Installation and Operation Manual PLAN 4000 System Service Manua
23. 80B Numbers may be given in hex or decimal 222 4 1 83 NETWORK 2 1 Drives Each user station operating under Pascal has 10 minidisk drives volume numbers 3 12 that can be virtual Drives 9 12 can also be real Real drives are local private minidisks attached directly to the user station virtual drives are volumes that reside on a system hard disk connected to a file server station In addition drive 6 can be set real if a locally connected printer is to be used NOTE Only drives 9 10 11 and 12 can be real for use with minidisk drives and drive 6 can be real for use with a local printer Drives 7 and 8 are used for the Pascal devices REMIN and REMOUT respectively The BOOT program part of the PLAN 4000 software sets the drive status of each drive when a Pascal virtual diskette is booted at an Apple user station Whether a drive is set by BOOT to be real or virtual depends upon the presence or absence of network interface cards or standard Pascal Disk II controllers in certain slots The slot containing the network interface card for the network you are booting from is called the boot slot When you boot your Pascal drives 4 amp 5 will always be set virtual Drive 4 will hold your boot volume and drive 5 will hold the shared library volume for your network If you are connected to real minidisk drives by controller cards in other slots some drives will be set for use with them when you boot If no
24. AL for future convenience and asks that it be displayed SHOW DIR The user then creates the desired volume and quits the NET program NET commands are discussed in detail in the File Server User s Manual In addition to the commands that it sends to the file server NET responds to a number of local commands that it executes itself These commands discussed in the following sections are concerned with displaying and setting the drive status real or virtual and network interface card slot number associated with each Pascal drive 2 2 1 SHOW DRIVES NOCHECK This command displays the status of all the Pascal units The information displayed consists of the following the unit number a i character if the unit is a disk same convention as Pascal filer s V command volume name l number of blocks on device disks only REAL or VIRTUAL indication If VIRTUAL then the virtual channel i e the slot of the network card and station number of the file 4 1 83 2 7 NETWORK server is displayed The SHOW DRIVES display has the following format DRV T NAME BLKS STATUS 1 CONSOLE REAL 2 SYSTERM REAL 3 VIRT 4 ABCL 800 VIRT SLOT 6 STN SFE 5 LIB 1800 VIRT SLOT 6 STN SFE 6 VIRT SLOT 6 STN SFE 7 VIRT SLOT 6 STN SFE 8 VIRT SLOT 6 STN SFE 9 VIRT SLOT 6 STN SFE 10 VIRT SLOT 6 STN SFE 1l VIRT SLOT 6 STN SFE
25. APPEARS TWICE A keyword parameter appears more than once in a single command There can only be one occurence of a keyword parameter even if multiple occurences have the same value 8 ILLEGAL TYPE PARAMETER The T value is not one of the legal volume types It must be one of the following P Apple Pascal B binary D Apple DOS S system C Apple CP M Y directory 3 Apple SOS T text U IBM PC p SYSTEM PASCAL I IBM PC DOS Example T P 9 COMMAND TOO LONG A file server command must be no longer than 80 characters In unusual cases where this is a problem long commands can often be shortened by using a default directory or by assigning access rights in a subsequent PROTECT command 10 PARAMETER TOO LONG The new name given as the second parameter of the RENAME command must be no more than 15 characters long Remember that RENAME changes only the last name in the sequence of names which constitute a pathname If you wish to change the name of a directory give the pathname of the directory itself as the first parameter of RENAME ERRORS 11 ILLEGAL PROTECTION PARAMETER The value of the PUBACC GRPACC or PRVACC protection item is incorrect The value must be some combination of the letters RWECD read write erase create and delete or may be null For example GRPACC RW or PUBACC 12 NO STATION CMD USE NN PREFIX The station command has been removed Use Snn command
26. BER CAN NOT BE USED There are 12 drives also called volumes in Apple Pascal but only some of them can be made virtual with the SET DRIVE local command 92 NO MORE CHANNEL SPACE MAX 3 In the Apple Pascal environment a channel is established for each different file server you have simultaneous access to There is space for three channels so you may have drives virtual to no more than three file servers at the same time There also must be a channel established for the default file server to which commands are sent This error indicates that you have asked for more than three file server channels to be established System Errors 94 99 94 NOT CONNECTED This is a network error that indicates that the connection to another station has been terminated prematurely 4 1 83 A 13 ERRORS 95 UNRECOGNIZABLE NETWORK RESPONSE The last response message from file server did not contain a numeric error code as expected This may indicate incorrect logic in the use of NETUNIT procedures from within Pascal programs 96 NO NETWORK CARD IN SLOT The slot number specified does not have a Nestar network interface card installed or the card is defective 97 FILE SERVER MEMORY FULL The file server has no space left for tables needed to complete your request This does NOT refer to memory space in the user station 98 NETWORK ERROR The network routines were unable to complete the transaction The error may be transient
27. C ompiler and L inker to create Pascal programs just as on a standalone microcomputer For example suppose that an educator has a set of arithmetic courses which he previously ran on a standalone Apple Now he wants to present these same courses on the network Let s assume that there is a system disk called COURSES and that he wants to CREATE a virtual disk called ARITHMETIC on it He would give the CREATE command CREATE COURSES ARITHMETIC T P D9 RW Assume that no protection is desired and that the size of a real diskette is satisfactory CREATE is used here to mount as well as create the virtual disk Then using the Pascal Filer he would ZERO the directory on the virtual disk and transfer files from the real disk to his virtual one 2 4 Multiple File Servers PLAN 4000 systems may have more than one file server on the same network In addition user stations may be attached to more than one network A user station identifies file servers by the number of the slot containing the network interface card for the network that the file 4 1 83 2 13 NETWORK server is attached to and by the station number for the file server on that network User stations have two kinds of communications with file servers users may issue commands to the file server and may issue I O requests for virtual drives A user station may be configured so that it has virtual disks mounted on a number of different file servers at th
28. D OR DEFAULT DIR You cannot delete a volume which is currently mounted by any station or which is the default directory see the SET DIR command of any Station Mount 30 34 30 DRIVE REQUIRED You must specify what drive the volume is to be mounted on Example D4 A 6 4 1 83 ERRORS 31 IN USE The volume you asked to mount is in use by another station You are therefore denied exclusive use of that volume 32 IN EXC USE The volume you asked to mount is in exclusive use by another station You are therefore denied any use of the volume 34 RW NOT ALLOWED ON DIRECTORIES You are not allowed to mount a directory T Y volume for write access Unmount 35 39 35 DRIVE OR ALL REQUIRED You must specify a drive number or ALL on the UNMOUNT command Examples UNMOUNT DI UNMOUNT ALL l 36 NOT CURRENTLY MOUNTED The drive number specified in the UNMOUNT command does not have any virtual volume mounted on it by the file server Lock 40 44 40 ILLEGAL LOCK NAME A lock name must be 1 to 15 characters long 4 1 83 A 7 ERRORS 41 IN USE The lock name specified is in use by another Station You are therefore denied exclusive use of the lock 42 IN EXC USE The lock name specified is in exclusive use by another station You are therefore denied any use of the lock Unlock 45 49 45 NOT HELD The lock name specified is not currently held by your station BSAVE BRUN BLOAD 50 55
29. D TEXT and interprets each line as a command The format of each command is lt command gt lt verb gt lt blanks gt lt optional operand gt The legal lt verb gt lt operand gt sequences are as follows lt anystring gt Ignored as a comment PRINT lt anystring gt Prints the string on the screen CLEAR Clears the screen heat 4 1 83 NESTAR START NET lt fileserver command gt Executes file server or BOXCURSOR LOWERCASE NOECHO lt command gt ASK lt command gt ASK Y lt command gt ASK N lt command gt ASK PROMPT text 4 1 83 local command e g MOUNT or SET DRIVE Turns on the MGR 80 column video Sup R Terminal cards boxcursor Sets lower case mode on the M amp R card Executes lt command gt but doesnt print it Asks whether to execute lt command gt Same as ASK except that a carriage return only response means yes Same as ASK except that a carriage return only response means no The PROMPT option on ASK allows you to use your own prompt text The prompt is NOT quoted and consists of whatever follows the word PROMPT 4 5 NESTAR START CONTINUE CONTINUE Y CONTINUE N SET USER id SHOW FORMDATE Asks if it is ok to continue A reply of no means QUIT Same as CONTINUE except that a carriage return only response means yes The prompt on screen will be CONTINUE Y N and any typed response will replace the default
30. M PASCAL will see these changes In particular the following three files can be affected Original name New name Function SYSTEM STARTUP 5 NESTAR START Program executed when booting SYSTEM LIBRARY 5 NESTAR LIB Library used for l intrinsic units SYSTEM MISCINFO 5 NESTAR MISC Configuration information Remember if there is no SYSTEM PASCAL on the booted disk the BOOT program will then use the SYSTEM PASCAL on the library volume The recommended configuration then is for the shared version of SYSTEM PASCAL which is on 5 to be modified with ZAPPASCAL to use shared versions of the three files and for individual user s boot volumes not to contain SYSTEM PASCAL NOTE As shipped the SYSTEM PASCAL on the Apple Pascal shared library volume 4 1 83 4 13 ZAP PASCAL pa MAIN LIB APPLE2 UCSD PASCAL has been zapped so that it looks for 5 NESTAR START rather than SYSTEM STARTUP 5 NESTAR LIB rather than SYSTEM LIBRARY and 5 NESTAR MISC If you prefer to use a copy of SYSTEM PASCAL that has only been partially zapped so that SYSTEM PASCAL references the new file name rather than the original in one but not all of the three instances cited above you should read the following instructions The changes must be made to an unmodified SYSTEM PASCAL as received from Apple If any local changes are to be made such as the use of BINDER to change to GOTOXY module those changes must be made after execu
31. PONSE where RC is an integer representing the return code sent back by the file server see Appendix A for a list of return codes and their meanings A return code of 0 means no errors NIL is a virtual channel pointer Specify NIL for the default and perhaps only file server See the related Nestar Technical Note for a discussion of multiple file servers and virtual channels COMMAND is a string variable whose value is the file server command to be executed RESPONSE is a string VAR variable whose value is set to the last response line sent back by the file server If the command has been executed successfully then the last response is usually OK Otherwise the last response contains the error message text All intermediate response lines are written to the screen 3 4 4 1 83 PROGRAMMING NOTE The NFSCMD procedure may wait an arbitrarily long time for the command to be executed and the response returned This wait may be inappropriate if the program needs to check for other events frequently such as key presses For this reason there is alsoa NFSCMDO procedure The procedure has the form RC NFSCMDO NIL COMMAND RESPONSE which is identical to NFSCMD except that the procedure will not retry if the network is not immediately available The calling program should retry and check for other events For example repeat RC NFSCMDO NIL COMMAND RESPONSE until RC lt gt 98 re
32. R displays name of current default directory SHOW LOCK lockname lists all stations using specified lockname SHOW ALL LOCKS displays all locks set at own station or held in file server SHOW ALL MOUNTS pathname gives information on virtual disks mounted C 2 4 1 83 COMMAND LIST on the file server SHOW PROTECTION pathname displays group private and public access rights for virtual disk or directory addressed by pathname gt SHOW STATION displays own station number SHOW TYPE Dd displays type of virtual disk mounted on drive d SHOW TYPES displays types of virtual disks mounted on drives 3 12 SHOW VOLS displays names of system disk units currently operational TIMESTAMP returns encoded form of the current date and time UNLOCK lockname or UNLOCK ALL releases locked usage on a lockname or on all locknames currently held UNMOUNT Dd or UNMOUNT ALL cancels previous mount s 4 1 83 G 3 COMMAND LIST Parameters access rights set of letters from RWECD read write erase create and delete drive Dd where d number between 3 and 12 filepath name password filepath lockname name of lock same restrictions as name name name of disk unit directory or virtual disk 1 15 characters no commas control characters slashes colons returns or unprintable characters imbedded blanks ok first character any ok character number if decimal betwee
33. RM should be called even if the invoking program doesn t expect accept a parm This procedure should only be called once per program since multiple calls will unstack multiple parm program list entries SETPARM parm string program name string This procedure sets the parm for the next program which will be executed In addition the program name of the program to be executed after the next program has completed can be specified e g the program name could be the original program name to cause a return to the original program when the next program has completed SETPARM always returns and multiple SETPARM calls are legal to set up a list of programs to execute 3 10 4 1 83 PROGRAMMING PROCEDURE GETPARM VAR PARM STRING VAR P INTEGER CVAL PGM STRING BEGIN GETCVAL CVAL P POS CVAL find the end of our parm IF P O THEN BEGIN PARM CVAL CVAL END ELSE BEGIN PARM COPY CVAL 1 P 1 DELETE CVAL 1 P 1 P POS CVAL IF P O THEN BEGIN PGM CVAL CVAL 77 END ELSE BEGIN PGM COPY CVAL 1 P 1 DELETE CVAL 1 P END IF PGM lt gt THEN SETCHAIN PGM XCTL pgm name END SETCVAL CVAL END 4 1 83 3 11 PROGRAMMING PROCEDURE SETPARM PARM PGM STRING VAR CVAL STRING BEGIN GETCVAL CVAL SETCVAL CONCAT PARM PGM CVAL END 3 12 4 1 83 UTILITIES Chapter 4 Additional Utilities 4 0 Introduction In additio
34. The NET program also accepts the following inputs lt anystring gt Ignored as a comment 4 1 83 2 11 NETWORK PRINT lt anystring gt Displays the text on the console command command Multiple NET commands are allowed on the same input line if they are separated by a semi colon filename Causes commands to be read in from the Pascal text filename specified 2 3 Initializing a Virtual Diskette in Pascal Suppose that as a new user you want to write new Pascal programs or run existing ones on the network What must you do to get started In general you or the system manager must Boot an existing Pascal virtual disk CREATE a Pascal virtual disk using NET MOUNT it on drive 3 or 6 12 for RW access The drive must be virtual not real Remember that the default for drives 3 6 7 and 8 is real Use the Filer to ZERO its directory see the Apple Pascal Operating System Reference Manual Boot the new virtual disk If you want to be able to boot the volume use the Editor to create a STARTCMD TEXT file of startup commands on the virtual disk The commands will be executed automatically whenever the disk is booted Startup commands are discussed in Chapter 4 2 12 4 1 83 NETWORK Use the Filer to transfer files from a real disk inserted in a minidisk attached to the user station if desired Use the Filer to transfer files from another currently mounted virtual volume Use the E ditor
35. ages so the above limitation or exclusion may not applysto FOUL ams ES bere kn The Regent of the University S California Apple Computer Inc and International Business Machines Inc make no warranties setther express of implied regarding the computer Software programs idesi ribed herein their merchantability or their fitness for any particular purpose UCSD UCSD Pascal and UCSD paSygtem are all trademarks of th Regents of th University of UiCaliforn P M is a qegistered trademark 6 Digital Research tie Z 80 mue a regist red trademark of Zilog Inc Softcard is trademark of Microsoft Consumer Products ties This document is copyrighted and all rights are reserved This document may not in whole or part be copied photocopied reproduced translated or reduced to any electronic medium or machine readable form without prior consent in writing from Nestar Systems Incorporated Copyright 1981 1982 1983 by Nestar Systems Inc 2585 E Bayshore Palo Alto California 94303 415 493 2223 Telex 171420 Nestar PLA Publication number C40 0501 0 All rights reserved ii 4 1 83 HOW TO How t Use This Guide This guide provides a description of those PLAN 400075ystem functions that care specific to the Appie f Pascal environment Wo MS When iii lan yourself with the systen r
36. an be run against that private version so that any subset of three files can come from 5 and the others will come as private versions with the original names from the booted disk NOTE If you wish SYSTEM COMPILER and SYSTEM LINKER to look for 5 NESTAR LIB instead of SYSTEM LIBRARY on your boot volume use the Zappascal utility after moving SYSTEM COMPILER and SYSTEM LINKER to the shared library volume LIB APPLE2 UCSD PASCAL 4 1 83 4 15 ERRORS Appendix A Error and Information Messages When the file server receives a file server command from a user station it executes the command if possible and in any case returns two variables return code an integer between 0 and 200 return message such as OK ILLEGAL COMMAND or TYPE APPLE PASCAL Messages are of several types information such as OK IN USE TYPE BINARY user errors such as syntax errors or attempting to access a virtual volume without the necessary access rights system errors such as memory full or disk full these should be reported to the system manager In this list messages are classified as general syntax pertaining to a specific command System errors file system errors Some Pascal I O error messages may be returned as a result of network operations 4 1 83 A 1 ERRORS 16 Write protect error the specified diskette is write protected 64 Device error failed to complete a read or write correctly Error 16 occurs when
37. ath If you wish to traverse a specified subtree respond Y to the prompt Delete subtree or N if you don t wish to traverse that subtree You may optionally be prompted before deleting each directory or file by responding Y to the Prompt for each directory or file prompt 4 1 83 4 11 TREEWALK RENAME pathname This command issues a FS RENAME command for each directory or file found by traversing the specified path If you wish to traverse a specified subtree respond Y to the prompt Rename subtree or N if you don t wish to traverse that subtree If you wish to rename a directory or file type in the new name after the prompt RENAME SUBTREE If you don t want to rename that path then just enter a lt cr gt FS This command allows you to enter file server commands from TREEWALK Entering FS command causes one file server command to be issued Entering FS lt return gt causes the NET prompt to be displayed File server commands can be entered one at a time until Q return is entered 4 12 4 1 83 ZAPPASCAL 4 4 ZAPPASCAL Utility Program ZAPPASCAL is an online system utility program that runs on a network user station It can be used by the system manager to modify the SYSTEM PASCAL on any virtual volume so that certain system files which normally must be on the booted volume can come from a shared disk on 5 instead Any user station which boots using the modified SYSTE
38. directory T Y Only the last thing in a pathname can be other than a directory 107 END OF PATHNAME IS A DIRECTORY The pathname specifies a directory T Y in a context where a non directory volume is required 109 ROOT DIR NOT SPECIFIED NO DEFAULT The specified pathname does not begin with a slash and there is no default directory recorded for this station by the file server If you wish to completely specify the pathname begin with a slash and the name or number of the disk unit If you wish to use the current default directory do not begin the pathname with a slash You may use the SHOW DIR command to find out the current default directory and the SET DIR command to establish one 110 NO ACCESS FOR READ You have been denied read access to the volume specified by the pathname or to a directory along the path A 16 4 1 83 ERRORS 111 NO ACCESS FOR WRITE You have been denied write access to the volume specified by the pathname 112 NO ACCESS FOR APPEND not yet implemented You have been denied append access to the volume specified by the pathname 113 NO ACCESS FOR ERASE You have been denied erase access to the volume specified by the pathname Erase access is necessary to delete the file 114 NO ACCESS FOR CREATE You have been denied access to create or rename an entry in one of the directories specified in the pathname 115 NO ACCESS FOR DELETE You have been denied access to delete o
39. e FS environment with the Nestar shared library the line USES CHAINSTUFF that immediately follows the Program heading must be replaced by USES SU LIB NESTAR LIB CHAINSTUFF The Nestar definition of the CVAL variable allows it to be used both to specify a series of program to be executed and to supply parameters to those programs Programs which obey this convention can thus be called subroutines or be linked in a chain of consecutive program executions The general format of the CVAL string asa program begins execution is parm program2 parm2 program3 where parm is a parameter that is being passed to the current program When it terminates 4 1 83 3 9 PROGRAMMING programl is the next program to be executed and it is passed the string starting with parm2 For example if the CVAL string has the following value when program ABC is executed verbose DEF nosend then program ABC will be executed with verbose as a parameter after which program DEF will be executed with nosend as a parameter Complex CHAIN sequences may be implemented by programs which add to as well as remove names from the CVAL string Two procedures that manipulate the CVAL string in accordance with this convention are shown here GETPARM parm string This procedure sets parm string to the parm provided to this program In addition if a CHAIN program name was given then a SETCHAIN is done for this reason GETPA
40. e same time The Pascal system can then be used to transparently access any combination of these virtual disks just as if they were real disks regardless of what actual file server station they are stored on The commands SET FS and SET DRIVES allow the user to configure his or her Pascal drives to correspond to virtual disks on various file servers These commands can set drives 3 12 to be real or virtual to define which file server the drives are connected to and to set a default virtual channel that will be used when file server commands are issued There are many interesting and complex system configurations that can be constructed using multiple file servers but they are all built upon the same basic primitive operations As an example suppose that it is necessary to manually transfer a file within a Pascal volume from one file server to another on the same network Assume that in addition to the primary file server on station SFE the system manager has installed another file server on station SFD The following procedure will transfer a file called XREF TEXT from Pascal volume MAIN USERS LJS 1 on the primary file server SFE to the Pascal volume MAIN ARCHIVE PVOLS on the second file server SFD 2 14 4 1 83 l NETWORK BOOT a Pascal volume in the usual way You will be booting from your default file server which has address SFE From the command level of the Pascal system X ecute t
41. ead first the PLAN 4000 General Information Manual l For information pertaining to your network s file servers which allow you to share hard disk memory with other network users read the File Server User s Manual A bibliography of PLAN 4000 system manuals and guides appears at the end of this guide Bi o0 LI ON The matertar in this docuinent Pre to Version 24 0 9k the File Server software We wel ome criticisms and suggestions Forms for reporting program _ errors and documentation etrors or inadequacies are provided at the back of this manual 4 1 83 iii m m T Ae ox w M m nu m ae P6 waa Sout Ne tw Sou 4 a amp taes o o ANN ONE ge Ers Lom a ow XN bou x x 4 a eoa S na od eos t r Bou ROU M bou A x TUM ee onis se aie tu so e 45 san it er at Da 2 e a Dm f a t I d i D CONTENTS Contents Disclaimer sesecceeccsecececeenecoeccooeceaneeoeon Li How to Use This Guide eseeccoscecccocooccoooooon iii ContentS veseseeeeeceeecocceeoeoeoeoooceooonee V Chapter 1 Starting Up 1 0 Introductions ccccececcccccccccscceces l 1 1 1 Starting Up Booting Virtual
42. from the Pascal command line LIB TREEWALK Command Syntax command pathname options Legal commands are LIST PROTECT DELETE Q uit FS RENAME HELP SHOW PROTECTION TREEWALK commands for the most part are extensions of file server commands simply applied to the entire subtree of the specified path instead of the single path Type an lt esc gt to abort a TREEWALK command For a more detailed description of a command type HELP command 4 10 4 1 83 TREEWALK LIST pathname This command gives a nested listing of the specified pathname The pathname is a legal file server pathname SHOW PROTECTION pathname Issues a FS SHOW PROTECTION command for each directory or file found by traversing the specified path If you only wish to traverse a specific subtree answer Y to the Show path name of subtree and answer N to the subtrees you don t wish to see PROTECT pathname protection list Protects each file found by traversing the specified path with the protection list If you wish to traverse a specific subtree answer Y to the Protect path name of subtree prompt and answer N to the subtrees you don t wish to see You may optionally be prompted before protecting each directory or file by responding Y to the Prompt for each directory or file prompt DELETE pathname This command issues a FS DELETE command for each directory or file found by traversing the specified p
43. he NET program Issue the following commands SET DRIVE 11 VIRTUAL set D11 virtual to FE MOUNT MAIN USERS LJS 1 D11 mount the source volume SET FS STATION SFD change default file server MOUNT MAIN ARCHIVE PVOLS D12 UPD Mount the destination volume on file server SFD SET DRIVE 12 VIRTUAL Set D12 virtual to the default file server which is now station SFD SET FS STATION SFE Restore the default file server for future commands QUIT Exit from NET You can use the SHOW DRIVES and SHOW FS commands to see the status of drives and the file server command channel Use F to go to the Pascal filer and T ransfer from 11 XREF TEXT to 12 The file will be copied from the SFE file server to the SFD file server 4 1 83 2 15 NETWORK This example is manual in the sense that the commands are typed interactively The same operations can be performed from within a program by using the CMDUNIT unit provided with the system to issue the commands and then using Pascal I O of any kind to transfer the data Other interesting additions such as using symbolic or indirect names instead of the file server station numbers can be added at the same time 2 16 4 1 83 PROGRAMMING Chapter 3 Programming 3 1 Using File Server Commands Within a Pascal Program NESTAR provides Pascal units that allow the Pascal user to write programs that issue commands to the file server The unit libra
44. l Print Server User s Manual Print Server Installation and Operation Manual Messenger User s Manual Messenger Installation and Operation Manual 4 1 83 BIBLIOGRAPHY GA40 0 100 GA40 0101 C40 0200 SC40 0501 SC40 0502 SC40 0503 SC40 0504 SC40 0505 SC40 0506 SC40 0300 LA40 0401 SC40 0201 SC40 0301 SH40 0204 SH40 0304 BB 1 Reader Comment Form This manual is one in a series that describes the use of the PLAN 4000 system You are encouraged to use this form to communicate to Nestar any problems or suggestions associated with the system We would like your comments on improving the system itself as well as on this documentation Possible topics for comment are clarity accuracy completeness organization coding retrieval and legibility No postage stamp is necessary if mailed within the U S A Nestar installation location Submitter s name oe Address Description of problem or suggestion Please mail this form to Nestar Systems Incorporated 2585 E Bayshore Road Palo Alto California 94303 Attn PUBLICATIONS DEPT No Postage Necessary If Mailed In The United States BUSINESS REPLY CARD Permit No 239 POSTAGE WILL BE PAID BY ADDRESSEE First Class Palo Aito CA NESIAR SIEM INCORPORATED 2585 East Bayshore Road Palo Alto California 94303 e4eu Plog ejde1s jou op eseald ede Reader Comment Form This manual is one in a series that de
45. n 32768 and 32767 inclusive if hex between 0 and SFFFF inclusive password a secret word used to gain access to protected volumes Same restrictions as name except control characters allowed pathname unitname filepath or filepath 80 characters max An initial slash indicates first field is a unit name no initial slash indicates current default directory is to be prefixed to pathname protection protect item protection protect item GRPPW password PRVPW password PUBACC access rights Default R GRPACC access rights Default PUBACC PRVACC access rights Default varies C 4 4 1 83 COMMAND LIST size SIZE number size unit size unit C character 1 byte S sector 256 bytes B block 512 bytes blank block 512 bytes K oo 1024 bytes type T 3 Apple SOS T Y directory T C Apple CP M T B binary T P Apple Pascal T S system T D Apple DOS T I IBM PC DOS T U IBM PC p System Pascal T T text unitname l 2 3 or 4 password or name password usage EXC exclusive SHR shared or UPD update RO read only or RW read write Local NET Commands SHOW DRIVES NOCHECK SHOW FS SET DRIVE S n n REAL VIRTUAL SLOT n STN nn SET FS SLOT n STN nn SPOOL TO device name file name SPOOL OFF Other NET Inputs drive 3 12 drive status R REAL or V VIRTUAL slot default virtual slot 4 1 83 C 5
46. n to the BOOT program Appendix B and the NET program Section 2 2 the PLAN 4000 system provides a number of utility programs for use at the individual network stations Before attempting to execute them ask your System Manager for the names of the volumes on which they reside at your installation usually a volume called MAIN LIB APPLE2 UCSD PASCAL with the Pascal name LIB SETPROFILE allows configuration of a profile record for a particular station address so that defaults can be preset for the BOOT process available on MAIN SYSTEM SETPROFILE NESTAR START executes a file of commands on the user s boot volume at Pascal initialization time l TREEWALK CODE allows the Pascal user to use NET commands to manipulate entire subtrees of the shared hard disk rather than just single volumes ZAPPASCAL is a program that changes SYSTEM PASCAL so that certain operating system files can be used from the shared library volume on drive 5 rather than from the boot volume In this way space is freed up on the boot volume for other uses 4 1 83 4 1 SETPROFILE 4 1 SETPROFILE The BOOT program supports station dependent profiles virtual volume containing boot defaults for your station Each station can have its own autoboot defaults which are invoked when the station is powered on If a profile record is not present for a particular Station a systemwide default profile is used The system manager sets these defaults using
47. ng printout shows a sample run or session User responses are shown in lower case to distinguish them from information displayed by Pascal and NET Actually commands can be entered in either upper or lower case and output from Pascal on a microcomputer with upper lower case capability is usually upper and lower case COMMAND E DIT R UN F ILE C OMP L INK X ECUTE x EXECUTE WHAT FILE lib net ENTER NETWORK COMMAND create lunch t p 109 ROOT DIR NOT SPECIFIED NO DEFAULT set dir main pascal No message in response to a command indicates that the command was successfully executed show dir MAIN PASCAL create lunch t p q return COMMAND E DIT R UN F ILE C OMP L INK X ECUTE In this example a user executes the NET program which allows him or her to send commands to the file server The user wishes to create a virtual volume for use on the network This volume a portion of one of the network s shared hard disks will be of type P formatted to resemble a real Apple Pascal 2 6 4 1 83 NETWORK diskette and since no size is given by default the same size as a real diskette The user does not enter the volume s full pathname perhaps assuming that a part of the pathname will be added by a default set at startup by a SET DIR command No such default partial pathname has been set however and an error message is returned The user then sets a default partial pathname MAIN PASC
48. not running entering ctrl shift N will permit local processing to continue at the user station However if the user wishes to reboot it is necessary to press RESET 2 2 The NET Program Entering File Server Commands From the Keyboard The NET program is an interactive Pascal program supplied by Nestar which allows a user to enter file server commands at the keyboard NET is generally made available as a CODE file in the default library volume that is automatically mounted on drive 5 by BOOT If NET is not found there the system manager will know where it is installed Network commands are discussed in the File Server User s Manual The NET program sends each command as entered to the file server except for the local commands described below The file server executes the command If there is an error a numeric error code and an error message will be displayed A complete list of error messages is found in Appendix A NET then redisplays on the user station screen its prompt for another file server command to be entered The cycle repeats until Q lt return gt or lt ese gt lt return gt is entered then control returns to the Pascal command level NET obeys the Nestar CVAL convention which allows NET to be called and executed chained to from another Pascal program with control returned subsequently to that program The Nestar CVAL convention is discussed in Chapter 4 1 83 2 5 NETWORK 3 The followi
49. ofile for a Pascal boot volume ignore the lines labeled DOS access rights Pascal access rights Library volume Supplying a station name is optional Such information is very useful if the station for which the profile record is being configured is a server station i e file server or print server When the defaults have been entered the program displays a summary and asks OK to update profile Y N Enter Y to accept the defaults or N to re enter the defaults When you choose to exit the SETPROFILE utility program the network logo will appear on the screen Power your machine off and back on to get the Volume to Boot prompt 4 1 83 4 3 NESTAR START 4 2 NESTAR START Command Program NESTAR START is the program that automatically runs in the user station when the boot volume is mounted NESTAR START first checks the booted disk for a file named SYSTEM STARTUP If present it is chained to Otherwise NESTAR START reads a file from the booted disk called STARTCMD TEXT and interprets each line as a command Note that in the PLAN 4000 system users do not need to have SYSTEM PASCAL or SYSTEM APPLE on their boot volumes to run in the Pascal environment Instead all stations can use the Nestar provided equivalent code files on a shared library disk See Appendix B BOOT Program and the ZAPPASCAL Utility Program below for more details The NESTAR START program reads a file from the booted disk called STARTCM
50. peat until not network error busy To execute a file server command and get all the responses back for evaluation including those usually displayed on the screen without program intervention use the NFSCMDI procedure The procedure has the form to be typed on one line RC NFSCMD1 NIL COMMAND RESPONSE NEWCMDFLAG DONEFLAG where RC is an integer representing the return code sent back by the file server NIL is a virtual channel pointer Specify NIL for the default and perhaps only file server See the related Nestar 4 1 83 3 5 PROGRAMMING Technical Note for a discussion of multiple file servers and virtual channels COMMAND is a string variable whose value is the file server command to be executed when NEWCMDFLAG is set to TRUE When NEWCMDFLAG is set to false it is ignored RESPONSE is a string VAR variable whose value is set to the next or first response line sent back by the file server NEWCMDFLAG is a boolean variable whose value is TRUE when a command is initially sent to the file server It is FALSE on successive calls which get the next response lines DONEFLAG is a boolean VAR variable Its initial value is ignored and it is set to TRUE if this is the last response line and FALSE if there are more response lines For example a program fragment might contain COMMAND file server command RC NFSCMD1 NIL COMMAND RSP TRUE DONE REPEAT proce
51. r rename an entry in one of the directories specified in the pathname 116 CANT DELETE NON EMPTY DIRECTORY The pathname specified in a DELETE command identifies a directory and that directory is not empty that is it still points to other volumes Only empty directories can be deleted by a single file server DELETE command To delete non empty directories i e subtrees 4 1 83 A 17 ERRORS see the description of the TREEWALK utility in Chapter 4 of this manual 117 FILE SERVER MEMORY FULL The file server has no space left for tables needed to complete your request This does NOT refer to memory space in the user station 118 DISK FULL There is not enough contiguous space left on the disk unit to create the volume The LIST command when used to display the root directory will give information about the space available on a disk unit Example LIST MAIN 119 DIRECTORY FULL There is not enough space left to create more entries in the directory and the directory cannot be expanded Directories are automatically expanded as necesary to accomodate new entries 120 INTERNAL ERROR An internal error has been detected by the file server Additional information is written on the console of the file server That information and the circumstances surrounding the error should be transmitted to your support organization for diagnosis The file server should be restarted as soon as practical A 18 4 1 83 ERRORS 1
52. r shown on the screen agrees If not please consult your System Manager NOTE The boot program recognizes a large collection of Apple compatible serial or communications cards installed in slot 3 and B 2 4 1 83 BOOT directs its I O to them automatically Whenever I O is being directed to the slot 3 device the message I O BEING DIRECTED TO SLOT 3 DEVICE is displayed on the standard Apple video output as an indication to the user A user may disable the automatic recognition of a slot 3 terminal like card by pressing the space bar down between the time that the BOOT program is downloading and begins running If this is done the standard Apple video output and keyboard input will be used regardless of a card in slot 3 The user may now enter the volume name of a virtual Pascal volume he wishes to load his system from This name may be up to 40 characters long including the prefix A default prefix is displayed on the screen shown above as MAIN The user may backspace and edit this prefix exactly as if he had typed it himself or type lt CTRL gt X to erase the whole line You should note that use of the file server does not in any way modify the minimum features necessary to load and execute Pascal Any errors you would get from these standard systems will still be reflected in the system For example you cannot boot a Pascal system into a machine which does not have 64 RAM After you have entered the name of
53. re at the same level In the typical Pascal system Pascal looks for the three necessary files SYSTEM STARTUP SYSTEM LIBRARY and SYSTEM MISCINFO on the user s booted volume However as shipped the SYSTEM PASCAL file has been modified to search for 5 NESTAR START 5 NESTAR LIB and S NESTAR MISC rather than these SYSTEM files These NESTAR files may reside on the drive 5 B 4 4 1 83 BOOT library volume so that it is no longer necessary for all users to have the files on their boot volumes See the description of the utility program ZAPPASCAL in Chapter 4 of this manual for more details Pascal will now come up and follow its normal procedures It will recognize a serial or communications card in slot 3 and direct its subsequent input output to that card if present B 2 3 Autobooting at the Individual Station The BOOT program can be tailored to the needs of individual stations Using the utility SETPROFILE the System Manager can install a profile for any station The profile will specify which volume is to be booted for the station whether the boot is to be automatic the Pascal access rights and the name of the default library volume automatically mounted on drive 5 Individual users can install station profiles themselves using SETPROFILE if they have the access rights necessary to do so If no profile has been set for a station BOOT will use the defaults set by the System Manager in the system 00 profile
54. regardless of the access rights currently assigned to the volume 131 UNIT NAME NOT FOUND The name after the initial slash of a pathname is not the name of a disk unit currently recognized by the file server You can also use the unit number in place of a name if you wish 133 DISK NOT READY The disk unit specified is not ready The one minute warmup period after initial power up may not have elapsed It may also indicate a controller or disk drive failure A 20 4 1 83 BOOT Appendix B The BOOT Program B l Description The BOOT program is a standard part of the file server and provides a means for users to load Apple Pascal l l It is automatically loaded and run when an Apple with the autostart ROM and a Nestar network interface card is powered up If an Apple disk controller is in a higher slot than the network card however the Apple will boot from the local disk The BOOT program is a machine language program that executes in the memory area 800 to SJFFF It has been provided as a BSAVEd virtual Network file named MAIN BOOTS APPLE2 BOOT This section describes the action of BOOT as distributed by Nestar You should consult your System Manager to see if any local modifications have been made to the version on your file server BOOT is brought into a user station s memory and executed whenever the Apple Autostart ROM present on Apple Plus Apple e and Apple with Language Card or Integer machines
55. ry distributed is called NETWORK LIBRARY and it contains the following units CMDUNIT a Pascal regular unit that allows programs to issue file server or local commands i e any command accepted by the NET utility program In fact this is the unit that the NET utility program uses This unit requires the unit NETUNIT also contained in NETWORK LIBRARY i NETUNIT a Pascal regular unit that allows programs to issue commands to the file server local commands are NOT accepted here and optionally gets responses back for processing by the program In addition NETUNIT contains routines that allow direct station to station communication These routines are not described here but a description can be found in the related Nestar Technical Note NETWORK LIBRARY may be installed in SYSTEM LIBRARY at your local installation If not the Pascal program must use the SU option to specify the location of the unit library to the compiler During linking the same library name must also be given 4 1 83 3 1 PROGRAMMING A program using CMDUNIT and or NETUNIT must have the following USES in the source of the program USES U network library name NETUNIT CMDUNIT Note the order NETUNIT must come before CMDUNIT for the declarations to compile without errors If the program uses only NETUNIT then USES in the source of the program can be simplified to USES U network library name NETUNIT 3 1 1 CMDUNIT If
56. scribes the use of the PLAN 4000 system You are encouraged to use this form to communicate to Nestar any problems or suggestions associated with the system We would like your comments on improving the system itself as well as on this documentation Possible topics for comment are clarity accuracy completeness organization coding retrieval and legibility No postage stamp is necessary if mailed within the U S A Nestar installation location oe Submitter s name Address Description of problem or suggestion Please mail this form to Nestar Systems Incorporated 2585 E Bayshore Road Palo Alto California 94303 Attn PUBLICATIONS DEPT BUSINESS REPLY CARD First Class Permit No 239 Palo Alto CA POSTAGE WILL BE PAID BY ADDRESSEE NESIAR SES INCORPORATED 2585 East Bayshore Road Palo Alto California 94303 eJeu pio L ejdeijs jou op SL jd No Postage Necessary If Mailed In The United States ede
57. ss RSP note RC not valid until DONE TRUE RC NFSCMD1 NIL COMMAND RSP FALSE DONE UNTIL DONE process final RSP and RC 3 6 4 1 83 PROGRAMMING 3 2 A Sample Program The following program MININET demonstrates the use of NFSCMD to send commands to the file server with a Pascal program The MININET program will get an input line from the user and send it to the file server for execution MININET differs from NET in the following ways l Both the code number and reply returned by the file server are displayed on the console 2 The commands referring to the user s own drives SHOW DRIVES SHOW SLOT SET Sn and SET Dd drive status are not available in MININET They are executed by the NET program using CMDUNIT not by the file server PROGRAM MININET USES SU LIB NETWORK LIBRARY NETUNIT VAR RC INTEGER CMD REPLY STRING BEGIN WRITELN Mini Command Program REPEAT WRITE FS COMMAND READLN CMD IF LENGTH CMD lt gt 0 THEN BEGIN RC NFSCMD NIL CMD REPLY Send command to default FS WRITELN RC REPLY END All done if nothing typed WRITELN Ciao UNTIL LENGTH CMD 0 END 4 1 83 3 7 PROGRAMMING A sample execution of the MININET program Mini Command Program NFS COMMAND show date DATE IS 03 10 81 FS COMMAND foo 1 ILLEGAL COMMAND FS COMMAND Ciao i 3 3 Reading the Station Number From a Program It may be useful to read
58. such cards are present all drives will be available for use with virtual volumes on the network you boot from although drives 3 and 6 8 must be set virtual using the NET program or 4 1 83 93 NETWORK STARTCMD as described below At power on the drive status for each drive is as follows Drive Drive Status 3 Real May be set virtual by using NESTAR START program Chapter 4 or NET program Chapter 2 4 amp 5 Always virtual to booted slot typically 6 but can be 1 7 6 8 Real May be set virtual by user using NESTAR START program or NET program 9 amp 10 Real if slot 4 contains a standard microcomputer disk controller Otherwise virtual to booted slot 11 amp 12 Real if slot 5 contains standard Microcomputer disk controller Otherwise virtual to booted slot The convention for setting the initial drive status as described above will usually provide acceptable defaults for a wide variety of user station configurations In the normal case where the network card is in slot 6 and slots 4 and 5 are empty the drives 4 5 9 10 ll and 12 are all virtual to slot 6 The NET program described in the following section can be used at any time to display and or change the the current drive status values BOOT boots from the highest numbered slot containing a network card normally 6 and looks for second and third network cards in slots 4 and 5 CAM 4 1 83 NETWORK If the network is temporarily
59. ted volume mount it for READ WRITE usage using the NET program MOUNT command quit NET and go to the Filer Press Z for Zero answer N to the question about duplicate directories enter the size of the volume and name it Remember that a volume has two names its network pathname or hard disk file name and its Pascal volume name One name is for use with the NET program the other for use with the Pascal Editor Filer etc Size is an optional parameter when CREATEing a Pascal virtual volume Virtual volumes do not have to be the same size asa 5 25 or 8 diskette for instance 4 1 83 2 1 NETWORK If no size is specified each Pascal virtual diskette is the size of a real minidisk i e 280 blocks each 512 bytes long Otherwize size can be specified with the CREATE command using the parameter SIZE b where b is the number of 512 byte blocks The maximum size is limited by the size of the disk unit on which the virtual volume will be stored and by limitations in the Pascal operating System The number of blocks for a Pascal virtual diskette must be 20 minimum lt 32767 max for system hard disk NOTE The system also allows size to be specified in units of characters 1 byte each sectors 256 bytes each blocks 512 bytes each lank blocks 512 bytes each kilos 1024 bytes each Aewnon by appending the appropriate character to the end of the size specification e g SIZE 2
60. that have upgraded by installing the ROM recognizes a power on condition On machines which do not have the Autostart ROM you must explicitly enter CnOGG where n is the slot in which a network interface card is installed in response to the Apple Monitor prompt Entering PR 6 or 6 lt ctrl gt P will NOT cause the BOOT program to be run The Network interface card differs from 4 1 83 B 1 BOOT Apple Disk controllers in this respect an Apple disk controller will boot whenever any character is printed to the slot they are plugged into When a user station is powered up BOOT will automatically unmount all disks in use by that station free any locks held and reset any default directory or passwords This also happens when the OFF file server command is issued It is strongly recommended that this be done by every user who is finished using an Apple on the system This gives a clear indication to others that the station is not in use and also frees up resources other stations may need l B 2 Operation of BOOT BOOT will display on the Apple screen the Nestar logo followed by PLAN 4000 BOOT X X STATION ADDRESS NN SLOT N SERVER STT VOLUME TO BOOT MAIN where NN is your station address in hex from 00 to FE and N and TT are the SLOT and Server numbers that communications are directed to You should place a sticker with the station number on each user station and you should observe that the numbe
61. the volume you wish to boot the BOOT program attempts to locate that volume and issue a MOUNT command for drive 4 If successful the type of the disk is checked The volume is mounted read write update unless the individual station profile or system default profile files have been changed 4 1 83 B 3 BOOT for different access and usage discussed below in Section B 2 3 B 2 1 Booting Pascal Virtual Volumes In the case of booting a Pascal disk a check is made to see that the 64 K is available before attempting to load Pascal If a profile record exists for the station the pascal library volume is located and mounted RO and SHR on drive 5 of the users station The volume the user requested to boot is remounted on drive 4 for RW and UPD usage or for the usage specified in the station s profile in MAIN SYSTEM PROFILE The file SYSTEM APPLE must be present MAIN LIB APPLE2 UCSD PASCAL mounted on drive 5 the shared library volume or on the user s booted volume If SYSTEM APPLE is not found on either an error message is issued Once SYSTEM APPLE is loaded the Pascal system is started In the case of booting Apple Pascal Release 1 1 SYSTEM PASCAL need not be present on the booted disk and can be loaded from the library disk instead BOOT checks the version numbers of SYSTEM APPLE and SYSTEM PASCAL and will only accept Apple Pascal 1 1 systems It also verifies that the versions of SYSTEM APPLE and SYSTEM PASCAL a
62. ting ZAPPASCAL To run ZAPPASCAL mount the disk that contains the SYSTEM PASCAL with the RW option and X ecute ZAPPASCAL When it asks Name of disk respond with the Pascal volume name e g LIB or 5 of the volume which contains the SYSTEM PASCAL It will then ask separately for each file Change SYSTEM STARTUP Y N Change SYSTEM LIBRARY Y N Change SYSTEM MISCINFO Y N You can choose to do any subset of the modifications If the change is successful it will say SUCCESSFUL If the change had been previously made it will say ALREADY CHANGED 4 14 4 1 83 ZAPPASCAL If the proper place to change cannot be found it will say NOT FOUND These changes do not change the names of the files or the files themselves The changes are modifications to SYSTEM PASCAL that cause it search for LIB NESTAR MISC instead of SYSTEM MISCINFO Therefore after executing ZAPPASCAL be sure to create the NESTAR files which the modified SYSTEM PASCAL will be looking for In most environments the NESTAR LIB will simply be a copy of SYSTEM LIBRARY the NESTAR START will be the startup program by that name distributed by Nestar and the NESTAR MISC will be a copy of the SYSTEM MISCINFO used by most of the stations in the installation If a particular user station wants to use a different version of any of the three files it will need to have a private copy of SYSTEM PASCAL on its booted disk ZAPPASCAL c
63. tory 69 UNKNOWN TYPE The volume mounted on the drive for which you did a SHOW TYPE is not a standard volume type 70 yymmddhhmms sw Not an error Returns date and time information in encoded form For example the FS command TIMESTAMP returns the current year month day hour minute second and day of the week in the form 70 8104301859381 that is 6 59 P M Sunday April 30 1981 4 1 83 A 11 ERRORS 71 t tt t t Not an error Returns types of virtual disks currently mounted on drives 1 16 Y P D B C 3 U I T The system responds to the FS command SHOW TYPES using this format 72 TODAY IS DD MON YYYY HH MM SS Not an error This is the response to the SHOW TIME command 73 TYPE TEXT Not an error The volume mounted on the drive for which you did the SHOW TYPE is a text volume T T e 74 TYPE Apple SOS Not an error The volume mounted on the drive for which you did the SHOW TYPE is an Apple SOS volume T 3 75 TYPE IBM PC DOS Not an error The volume mounted on the drive for which you did the SHOW TYPE is an IBM PC DOS volume T I 76 TYPE IBM PC P SYSTEM PASCAL Not an error The volume mounted on the drive for which you did a SHOW TYPE is an IBM PC A 12 4 1 83 ERRORS p SYSTEM Pascal volume T U Local Commands 90 92 90 DRIVE S REQUIRED LOCAL COMMAND A drive number is required for this command Example SET DRIVE 3 VIRTUAL 91 DRIVE NUM

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