Hi,
When I run repair on an MD-RAID1 sync_action, the speed slows down and it
stays like this (below) for hours.
The system is then completely unresponsive to user input. I have replaced a
failing SSD; however, after a check, mismatch_cnt seems to increase over
time. When I run repair, the system freezes to user-input. Has anyone else
run into this issue with a RAID-1 volume (2 x SSD) using 0.90 metadata?
Long ago I used to use this same configuration with two physical disks and
there was never a problem.
Even though I left a root shell open, this has no effect to break the
resync:
# echo idle > /sys/devices/virtual/block/md1/md/sync_action
Every 1.0s: cat /proc/mdstat Sun Jul 21 06:15:38
2013
Personalities : [raid1]
md1 : active raid1 sdc2[0] sdb2[1]
233381376 blocks [2/2] [UU]
[>....................] resync = 0.0% (151616/233381376)
finish=36171.5min speed=107K/sec
md0 : active raid1 sdc1[0] sdb1[1]
1048512 blocks [2/2] [UU]
unused devices: <none>
10 minutes later:
233381376 blocks [2/2] [UU]
[>....................] resync = 0.0% (151616/233381376)
finish=52219.3min speed=74K/sec
Where it hangs (151616) or elsewhere, has been different each time I watched
it, it does not appear to be hanging at the same block each time.
Justin.
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