Hello.
I am trying to move LVM setup from old RAID md0 to new RAID md1
I did "lvconvert -m 1 /dev/path/to/logical_volume /dev/md1" on bunch of
logical volumes.
Everything went without problems.
Then I tried to remove md0 from one of logical volumes by running command:
lvconvert -m 0 /dev/varlin/distfiles /dev/md0
I tried to mount this logical volume, but failed.
Then I checked first megabyte of logical volume it was zero filled.
Partial output of "lvs -o+devices":
LV VG Attr LSize Pool Origin Data% Meta%
Move Log Cpy%Sync Convert Devices
backup varlin -wi-ao---- 100,00g
/dev/md0(6304)
backup varlin -wi-ao---- 100,00g
/dev/md0(8544)
data varlin -wi-ao---- 20,00g
/dev/md0(28384)
distfiles varlin -wi-a----- 20,00g
/dev/md1(2738)
ftp varlin rwi-aor--- 10,00g
100,00 ftp_rimage_0(0),ftp_rimage_1(0)
ftpdown varlin rwi-aor--- 10,00g
100,00 ftpdown_rimage_0(0),ftpdown_rimage_1(0)
lvm2: 2.02.116
kernel: 4.4.2
Questions:
1) What I did wrong?
2) Is it possible to salvage /dev/varlin/distfiles or I must restore it
from backups?
3) What I should do now to get system to safe state?
Best regards,
Raimonds Cicans
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