[linux-lvm] Question on LVM and Bare Metal Restore?
mbroz at redhat.com
Sun Jun 12 09:01:41 UTC 2011
On 06/12/2011 12:44 AM, Michael D. Setzer II wrote:
> Backing up the regular partitions that contain an LVM has been
> always been available, and backing up the whole disk image.
> Recent versions have added the ability to backup the LVM dm
> partitions as well. Backing up and restore works fine as long as
> the LVM setup is already there, but it a disk completely fails one
> would need to recreate the LVM before being able to restore it.
Recovery is very easy with LVM (once you find how to do that:-)
I suggest you read the LVM documentation, mainly
the section 6. LVM troubleshooting.
All you need to recover LVM metadata is metadata backup
(automatically maintained in /etc/lvm or directory specified in lvm.conf)
and then something like
pvcreate -u <uuid> --restorefile <backup file> <PV> # only if PV header is lost!
vgcfgrestore -f <backup file> <VG>
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