topic Re: hard disk recovery using Ignite recovery tape in Operating System - HP-UX

hard disk recovery using Ignite recovery tape

Constance — Fri, 22 Mar 2002 14:26:37 GMT

If I have an Ignite recovery tape created with the -a option and I replace a failed hard drive with an identical hard drive, same scsi id, will the Ignite recovery process automagically manage the new disk so as to recreate the volume group and logical volumes and file systems that were on the original disk?

Re: hard disk recovery using Ignite recovery tape

Clemens van Everdingen — Fri, 22 Mar 2002 14:29:08 GMT

Hi,

Yes it will.
Reboot from tape and your systems vg00 will be restored to the state of the system at the time the make_recovery tape was created.

Suc6.

Re: hard disk recovery using Ignite recovery tape

John Carr_2 — Fri, 22 Mar 2002 14:35:14 GMT

Hi

yes of course that what the make_recovery utility was designed to do

good luck
John.

Re: hard disk recovery using Ignite recovery tape

Helen French — Fri, 22 Mar 2002 14:35:29 GMT

Hi,

Some thoughts :

1) What do u mean by '-a' option ? If you are talking about '-A' and if you are using make_recovery, then your entire vg00 has been backed up with recovery. If you are using make_tape_recovery with '-a' then this option is used for specifying the device name. There are some differences in options of both commands.

2) If you just want to replace the failed disk and restore the VG informations, you don't need to recreate from recovery tape. You can just do 'vgcfgrestore'

# vgcfgrestore -n vg_name pv_name

HTH,
Shiju

Re: hard disk recovery using Ignite recovery tape

Christopher McCray_1 — Fri, 22 Mar 2002 14:35:52 GMT

Hello,

In addition to what Clemmens just said, you can let the ignite tape install by itself in batch mode, or interrupt batch process when told to by pressing enter. Then you can make some modifications prior to installing, like increasing filesystems, etc.

Good luck

Chris

Re: hard disk recovery using Ignite recovery tape

pap — Fri, 22 Mar 2002 14:36:32 GMT

Hi,
Yes, It will do verything necessary to create the system. In short it will make exactly same system as when you created your make_recovery tape. You need not to do anything else. Just boot the system through the tape. In some cases. after restoring ignite image from make_recovery you need to run vgchange -a y /dev/vgNN for activating the volume groups if they are not activated after restore.

Nothing else...

-pap

Re: hard disk recovery using Ignite recovery tape

Steven Gillard_2 — Fri, 22 Mar 2002 14:40:48 GMT

I agree with Shiju, booting from a recovery tape is a last resort only. If you've lost your boot disk and don't have a working mirror copy then maybe its time to pull it out.

Otherwise, vgcfgrestore will restore the LVM structures, then you can recover your data or resync the mirrors as necessary.

Regards,
Steve