[linux-lvm] Data loss - vg gone
Michael S. Fischer
michael at auctionwatch.com
Tue Jun 5 19:47:37 UTC 2001
Hello,
We presently have 10 systems, each of which is configured according to the
specs at the bottom (vgdisplay -v output included). One of the systems had
a common mode failure in which the RAID controller was not present to the
system on reboot; when we discovered this, we rebooted the system. The RAID
controller and its virtual disk came back but the volume did not.
vgscan found no volumes (and vgdisplay reports none), but according to
pvscan the physical volume signature is still there. If I try to recreate
the volume I get the error message that the physical volume already belongs
to the volume group.
Is there any way I can recover the volume? Any help would be sincerely
appreciated.
Thanks,
--Michael
Hardware:
- 2 x PIII processor
- 1GB RAM
- IDE boot disk
- 4 x 75GB IBM IDE drives, attached to a 3Ware Escalade 6410 RAID controller
in RAID 10 (stripe of mirrors) mode
LVM:
--- Volume group ---
VG Name vg0
VG Access read/write
VG Status available/resizable
VG # 0
MAX LV 256
Cur LV 1
Open LV 1
MAX LV Size 255.99 GB
Max PV 256
Cur PV 1
Act PV 1
VG Size 143.17 GB
PE Size 4 MB
Total PE 36652
Alloc PE / Size 30720 / 120 GB
Free PE / Size 5932 / 23.17 GB
VG UUID CQIxou-PFxE-pJbv-bslk-tkjy-BARP-c2toQB
--- Logical volume ---
LV Name /dev/vg0/lv0
VG Name vg0
LV Write Access read/write
LV Status available
LV # 1
# open 1
LV Size 120 GB
Current LE 30720
Allocated LE 30720
Allocation next free
Read ahead sectors 120
Block device 58:0
--- Physical volumes ---
PV Name (#) /dev/scsi/host2/bus0/target0/lun0/part1 (1)
PV Status available / allocatable
Total PE / Free PE 36652 / 5932
--
Michael S. Fischer / michael at auctionwatch.com /
http://www.auctionwatch.com
Systems Engineer, AuctionWatch.com Inc. / Phone: +1 650 808 5842
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