Adding a Peripheral to Any System

• Enter SYSGEN

• View the system's current configuration

• Activate the IO configurator

• Make the necessary I/O configuration changes

• Hold the changes

• Save the changes

• Verify the accuracy of the new configuration

1. Activate SYSGEN's global module.

   Enter the SYSGEN command at the system prompt.

   
     (/SYS/PUB)>sysgen
     SYSGEN version E.03.00 : catalog version E.03.00  WED, FEB 13, 2002, 10:51 AM
     Copyright 1987 Hewlett-Packard Co. All Rights Reserved.
             ** First level command **
             io                log (lo)       misc (mi)        spu (sp)
             sysfile (sy)
   
             basegroup (ba)    keep(ke)       permyes (pe)     show (sh)
             tape (ta)
   
             clear (cl)(c)     exit (ex)(e)   help (he)(h)     oclose (oc)
             redo sysgen>
   
   

2. Select the base group to modify.

   If you desire to modify the default configuration groups, copy the groups to other group names and modify the copies using the IO configurator. Copying the groups preserves uncorrupted versions of the default or current configurations.

   To copy configuration groups, use the BASEGROUP command to activate the desired configuration group. Use the KEEP command to save the group of files to another group name. Refer to Chapter 4 Using the System Generator (SYSGEN) for more information on using the BASEGROUP and KEEP commands.

   After deciding which copied configuration group to modify, use the global module BASEGROUP command to activate the group:

   
     sysgen>BASEGROUP groupname
   
   

   Use the I/O configuration contained in CONFNCL1 as an example configuration for this exercise.

3. Activate the IO configurator.

   Enter the global module command, IO, at the SYSGEN prompt to activate the IO configurator:

   
     sysgen> io
          ** IO configurator commands **
          aclass (ac)      adev (ad)       apath (ap)      avol (av)
          dclass (dc)      ddev (dd)       dpath (dp)      dvol (dv)
          lclass (lc)      ldev (ld)       lpath (lp)      lvol (lv)
          maddress(ma)     mclass (mc)     mdev (md)       mpath (mp)
          mvol (mv)
   
          clear (cl)(c)    exit (ex)(e)    help (he)(h)    hold (ho)
          oclose (oc)      redo
       io>
   
   

4. Obtain I/O configuration listings.

   Enter LCLASS, LDEV, and LPATH, at the IO configurator prompt to get current I/O configuration listings:

   
     io>LCLASS DEST=OFFLINE
   
     io>LDEV DEST=OFFLINE
   
     io>LPATH DEST=OFFLINE
   
     io>OCLOSE
   
   

   The OCLOSE command closes SYSGEN's listing file, SYSGLIST, and prints the information in the file.

   Refer to Chapter 5 Modifying Input/Output (I/O) Configurations for more information on using the LCLASS, LDEV, LPATH, and OCLOSE commands.

5. Decide on which LDEV to add the drive.

   View the LDEV command output. Choose any unused LDEV and consider assigning it to the disk drive. For this example, use LDEV 14.

6. Decide on the class of the added peripheral.

   View the LCLASS listing. If it contains a class (DISC) assigned to a particular type of peripheral (in this case, a disk drive), use that class for your addition. Remember, each device can simultaneously belong to up to eight classes.

   If your configuration does not contain a class name for the additional peripheral, the system will create a class name for you if you use a name that does not exist. Class names may not exceed eight characters and must begin with an alphabetic character.

7. Add the path.

   Since you are adding the drive to a newly installed PCI SCSI card, you must define the path down to the device adapter level. Use the APATH command to define the path.

   For example, add the drive to a newly installed PCI SCSI card (ID number, A5150A). Enter:

   
     io> ap 1/0/0/0 id=A5150A
   
   

   Refer to Chapter 5 Modifying Input/Output (I/O) Configurations for additional information on using the APATH command.

8. Add the device.

   Use the ADEV command to add the device, including the device address, to the path specified with the APATH command. Enter:

   
     io> adev 14 1/0/0/0.6.0 ST39103LC class=(DISC,SPOOL)
   
   

   Refer to Chapter 5 Modifying Input/Output (I/O) Configurations for additional information on using the ADEV command.

9. Hold all changes.

   Enter the IO configurator HOLD command at the IO configurator prompt:

   
     io>HOLD
   
   

   Refer to Chapter 5 Modifying Input/Output (I/O) Configurations for additional information on using the HOLD command.

10. Exit the IO configurator.

    Enter the EXIT command at the IO configurator prompt:

    
      io>EXIT
    
      sysgen>
    
    

11. Save changes in a permanent file.

    Enter the global module KEEP command at the SYSGEN prompt:

    
      sysgen>KEEP CONFIG
    
    

    CONFIG is the group name under which you save the modified files. Each time you start up the system, the group CONFIG will then be the default.

    Refer to Chapter 4 Using the System Generator (SYSGEN) for additional information on using the KEEP command.

12. Generate a boot tape.

    Mount a write-enabled tape on the tape drive. Enter:

    
      sysgen>TAPE
    
    

    The system may place a tape request similar to the following:

    
      ?11:10/#S1/46/LDEV# FOR "SYSGTAPE" ON TAPE (NUM)?
    
    

    If this message appears, respond:

    
      CTRL A
    
      =REPLY pin,7
    
    

    where pin is the PIN (in this instance 46) from the third location in the tape request.

    After all the files are stored, unload the tape, and write protect it. Label the tape, and store it, in a secure location, with any other backup materials.

13. Exit SYSGEN and reboot the system.

    
      sysgen>EXIT
    
    

NOTE: Any disk device smaller than 400 Mbytes should not be installed as the system disk (LDEV 1). A disk this size or smaller is too small to run the operating system and its subsystems. A 400-Mbyte or smaller disk, however, can be used as any other LDEV.