[linux-lvm] one PV crashed
Heinz J . Mauelshagen
mauelshagen at sistina.com
Fri Feb 1 05:08:01 UTC 2002
On Fri, Feb 01, 2002 at 11:52:08AM +0100, Turbo Fredriksson wrote:
> >>>>> "Heinz" == Heinz J Mauelshagen <mauelshagen at sistina.com> writes:
>
> Heinz> On Fri, Feb 01, 2002 at 11:01:22AM +0100, Turbo Fredriksson
> Heinz> wrote:
> >> I have (had) 6 PV's in my VG. The last one crashed (the whole
> >> disk seems to have broken totaly).
> >>
> >> It don't seem possible to restore the information (not without
> >> spending $$$ to a data recovery company), so how do I get the
> >> data stored on the OTHER disks?
>
> Heinz> You don't spend a single dollar :-)
>
> I was referring to restore the lost data on the failed disk ..
Well, that's a different story :)
>
> Heinz> There's 2 solutions:
>
> Heinz> A: --
> Heinz> Buy a replacemeent drive (say /dev/sdg1 ;-) and run
>
> Heinz> fdisk # to partition it the same way the broken one was
> Heinz> pvcreate /dev/sdg1 vgcfgrestore -f /etc/lvmconf/vg1.conf -n
> Heinz> vg1 /dev/sdg1 vgscan
>
> I'll get a replacement from IBM (the disk is still on warranty), so I'd
> go for this...
Ok.
>
> Since I have data on the vg, will this still let me keep this, or will
> it be destroyed when doing the pvcreate/vgcfgrestore?
>
> Heinz> B: --
> Heinz> If you don't have a replacement drive at hand you can even
> Heinz> be faster by faking one (you must have loop configured in
> Heinz> the kernel and use LVM 1.0.2):
>
> Heinz> dd if=/dev/zero of=/tmp/my_sdg1.vgda bs=1k count=512
> Heinz> losetup /dev/loop0 /tmp/my_sdg1.vgda pvcreate /dev/loop0
> Heinz> vgcfgrestore -f /etc/lvmconf/vg1.conf -n vg1 /devloop0
> Heinz> vgscan
>
> I'll do this as a temporary solution, while waiting for the replacement.
> Knowing IBM, it can take a while :)
No comment.
>
>
> Same question here, will the content on the VG be destroyed?
>
> Heinz> Hope that helps :-)
>
> It does (at least in the sense that I'll won't loose MORE data :) Thanx.
Right.
Did you try it already with loop?
>
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>
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--
Regards,
Heinz -- The LVM Guy --
*** Software bugs are stupid.
Nevertheless it needs not so stupid people to solve them ***
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Heinz Mauelshagen Sistina Software Inc.
Senior Consultant/Developer Am Sonnenhang 11
56242 Marienrachdorf
Germany
Mauelshagen at Sistina.com +49 2626 141200
FAX 924446
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