Hello. I am looking for advice on how to act in such a situation. Perhaps anyone has gone through something similar? We used lvm thin provisioning on one of our arrays. But after raid controller failure we got problem with activation of all thin volumes:
# lvchange -a y data/thin Check of pool data/thin failed (status:1). Manual repair required! I tried to use lvconvert --repair data/thin, but have this: # lvconvert --repair data/thin truncating metadata device to 4161600 4k blocks bad checksum in superblock, wanted 1494954599 Repair of thin metadata volume of thin pool data/thin failed (status:1). Manual repair required! I have seen recipes related to thin_dump but I cannot use them, since in particular thin_dump works with a mounted device. Аnd I, due to a faulty superblock, cannot achieve the presence of the LVM partitions in /dev/mapper/ for working such a device Are there any chances of a successful recovery? And what can be done in such a situation? Best regards, Pavel P.S. And some output: # pvscan PV /dev/sdc1 VG data lvm2 [<10.90 TiB / <4.87 TiB free] # vgs VG #PV #LV #SN Attr VSize VFree data 1 11 0 wz--n- <10.90t <4.87t # lvs -a LV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convert [lvol0_pmspare] data ewi------- 16.00g thin data twi---tz-- 6.00t [thin_tdata] data Twi------- 6.00t [thin_tmeta] data ewi------- 16.00g vm-105-disk-0 data Vwi---tz-- 40.00g thin vm-105-disk-1 data Vwi---tz-- 500.00g thin vm-107-disk-1 data Vwi---tz-- 40.00g thin vm-107-disk-2 data Vwi---tz-- 40.00g thin vm-107-disk-3 data Vwi---tz-- 500.00g thin vm-123-disk-0 data Vwi---tz-- 32.00g thin vm-148-disk-0 data Vwi---tz-- 1.17t thin vm-161-disk-0 data Vwi---tz-- 32.00g thin vm-166-disk-0 data Vwi---tz-- 32.00g thin vm-168-disk-0 data Vwi---tz-- 50.00g thin # lvscan -a File descriptor 7 (pipe:[224496]) leaked on lvscan invocation. Parent PID 24064: bash inactive '/dev/data/thin' [6.00 TiB] inherit inactive '/dev/data/vm-107-disk-1' [40.00 GiB] inherit inactive '/dev/data/vm-107-disk-2' [40.00 GiB] inherit inactive '/dev/data/vm-107-disk-3' [500.00 GiB] inherit inactive '/dev/data/vm-105-disk-0' [40.00 GiB] inherit inactive '/dev/data/vm-105-disk-1' [500.00 GiB] inherit inactive '/dev/data/vm-148-disk-0' [1.17 TiB] inherit inactive '/dev/data/vm-161-disk-0' [32.00 GiB] inherit inactive '/dev/data/vm-166-disk-0' [32.00 GiB] inherit inactive '/dev/data/vm-123-disk-0' [32.00 GiB] inherit inactive '/dev/data/vm-168-disk-0' [50.00 GiB] inherit inactive '/dev/data/lvol0_pmspare' [16.00 GiB] inherit inactive '/dev/data/thin_tmeta' [16.00 GiB] inherit inactive '/dev/data/thin_tdata' [6.00 TiB] inherit
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