[linux-lvm] one PV crashed
Turbo Fredriksson
turbo at bayour.com
Fri Feb 1 04:52:01 UTC 2002
>>>>> "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 ..
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...
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 :)
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.
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