Earlier today drive 4 was detected as faulty so I hotswapped it with a new one, except the rebuild never started, the volume is still in degraded mode.
I'm on firmware 4.2.6 for TS-639, the new drive is shown as GOOD in the list but the drive is still degraded.
What can I do to manually start a rebuild? Is there a log that can help to detect the issue?
I tried a few commands in the console but there's nothing I can discern from them:
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[~] # cat /sys/block/md0/md/sync_action
idle
[~] # cat /proc/mdstat
Personalities : [linear] [raid0] [raid1] [raid10] [raid6] [raid5] [raid4] [multipath]
md0 : active raid6 sda3[0] sdf3[5] sde3[4] sdc3[2] sdb3[1]
15621798400 blocks level 6, 64k chunk, algorithm 2 [6/5] [UUU_UU]
md6 : active raid1 sdf2[6](S) sde2[5](S) sdc2[3](S) sdb2[2] sda2[0]
530128 blocks super 1.0 [2/2] [UU]
md13 : active raid1 sda4[0] sde4[4] sdf4[3] sdc4[2] sdb4[1]
458880 blocks [6/5] [UUUUU_]
bitmap: 3/57 pages [12KB], 4KB chunk
md9 : active raid1 sda1[0] sdf1[5] sde1[4] sdc1[2] sdb1[1]
530048 blocks [6/5] [UUU_UU]
bitmap: 24/65 pages [96KB], 4KB chunk
unused devices: <none>