I am in serious need of some hardware and hardware setup redesign. Essentially, we have 30GB of disk all in the system volume set and want to add 20GB more and go to multiple volume sets. How do I do this?
This checklist can be used to add new disks and completely redesign the volume sets:
1. Perform two full system backups and verify each.
2. Create a new sysgen tape.
3. Check the new sysgen tape with CHECKSLT.
4. Copy @[email protected] to a separate tape and verify.
5. Verify all disk drives configured and working properly.
6. Create a BULDACCT job for each new volume set with just the accounts destined for that volume set.
7. Verify that a current full BULDACCT exists on tape.
8. Shut down the system.
9. Restart the system.
10. From the ISL prompt, INSTALL.
11. In VOLUTIL, scratch all drives except for ldev 1.
12. In VOLUTIL, do "NEWVOL volset:member# ldev# 100 100" for each volume in the system volume set (other than ldev 1).
13. In VOLUTIL, do "NEWSET volset member# ldev# 100 100" for the master volume for each new set.
14. In VOLUTIL, do "NEWVOL volset:member# ldev# 100 100" for each volume in each new
15. Restore SYS account files with ;KEEP;SHOW;OLDDATE options.
16. Stream all BULDACCT jobs to create accounts structure.
17. Restore all files with ;KEEP;SHOW;OLDDATE options.
18. Spot-verify applications.
19. Once everything appears OK, run a BULDACCT.
20. Perform a full system backup.
A few rules of thumb:
1. Don't mix unlike-size drives on a single volume set. This is mostly an operational consideration. Avoid having the small volumes in the set fill up first with plenty of space left on the larger volumes.
2. Put the more critical user accounts on faster, newer disk drives.
3. Set up the volume sets in a business-logical manner. In other words, put accounts in a volume set with other, related accounts, if possible.Try to clearly isolate the volume sets along boundaries.
4. If you're redesigning the disk environment and doing an INSTALL, be sure to have at least two verified backups.
5. Don't be afraid to have a volume set made up of drives configured on multiple controller paths. For example, you might have three single-ended IO controller cards (if it's an older 3000). On a few of your sets, you can have drives from each.