Replace internal disk

[Jeff Hagstrom]

My vg00 disk needs to be replaced. Keeps reporting write problems. I have the disk and have done a make_tape_recorery of vg00.
How do I restore the information that is on vg00, old drive, to vg00 new drive.
1. Can I make a backup of vg00? or is that what the make_tape_recovery did?
2. After I have my backup, do swap the drive and make the filesystem on vg00 again. Or do I restore the make_tape_recovery disk? Help.

[Christopher McCray_1]

Hello,

1. The make_tape_recovery tape is what you use to restore the vg00. It is a bootable tape that is in essence an HP-UX install, current up to the time the tape was cut.

2. I don't necessarily understand the question. Depending on how recent the make_tape_recovery is, it is possible that no restore from backup is necessary. The tape also restores the fs structure the server had at the time of creation. You only need to increase/decrease filesystems, if necessary, at this time.

Hope this helps

Chris

[James R. Ferguson · Accepted solution]

Hi Jeff:

From your post, I'm going to assume that your vg00 is not mirrored (shame!). If this is the case, my choice would be to take my good, current Ignite recovery tape (made before things went sour) and reinstall your server. Consider this a good time to resize any of your filesystems too, if you need to do so by toggling the advanced installation Ignite tab.

# make_tape_recovery -x inc_entire=vg00 -I -v -a /dev/rmt/0mn

The '-I' option of 'make_tape_recovery' ' causes the Ignite process to be interactive when booting from tape.

Regards!

...JRF...

[Rodney Hills]

Jeff,

If your vg00 is not mirrored and you have room to mount the new disk whilst the old disk still exists, then you could use mirroring to copy your existing failing vg00 disk to the new.

With a few more commands (using lvlnboot) you can make the new mirrored disk bootable.

Configure (within ISL) to use the new disk for booting and you are ready to go.

Recommend you replace bad disk with another new disk and use mirroring to copy onto it. Then leave it since it will give you some protection in the event your system disk goes really bad.

my 2 cents

-- Rod Hills