Re: Copy data from a failed LVM drive

["M. Lewis" <cajun@cajuninc.com>]

Stefan Monnier wrote:
> > > > I had a drive failure (SMART errors) on a drive with LVM. I've replaced the
> > > > drive, but now need to copy the data from the old drive. How can I do this?
> > > > Vgscan only shows the VG of the 'current' drive.
> > > Are both drives connected?  If so, have you created different VGs on
> > > each drive?
> > Yes, both drives are connected and have different VGs.
>
> Hmm... so they have different VGs but `vgscan' only shows one of
> the two?
> That's odd.  How are the drives connected?  What does "pvscan -vvv" say?
>
> FWIW, here's how I'd ideally do the replacement:
> 1 - plug in the new drive.  Let's say it appears as /dev/sdb
> 2 - partition it with `fdisk' so I have 1 large partition /dev/sdb1.
> 3 - pvcreate /dev/sdb1
> 4 - vgextend VG /dev/sdb1 (where VG is your old volume group name)
> 5 - pvmove /dev/sda1 (where /dev/sda1 is the physical volume on the old drive)
> 6 - vgreduce VG /dev/sda1
> 7 - pvremove /dev/sda1
> 8 - remove old drive
>
>
>         Stefan

This worked perfectly Stefan. Thank you very much. This made it so easy.

Mike

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