I have a need to kick a disk out of a RAID 5 array.
I can do a fdisk on 2 out of the 3 devices that form part
of the array, so I suspect I know which one is bad.
The problem is that mdstat shows the array as follows:
md3 : active raid5 sda6[0] sdc6[2] sdb6[1]
960863488 blocks level 5, 64k chunk, algorithm 2 [3/3] [UUU]
[>....................] resync = 0.7% (3444348/480431744)
finish=582280.4min speed=1K/sec
Doesn't this mean that all three disks are active and in use?
mdadm -D /dev/md3 shows:
Number Major Minor RaidDevice State
0 8 6 0 active sync /dev/sda6
1 8 22 1 active sync /dev/sdb6
2 8 38 2 active sync /dev/sdc6
So, my question is as follows: can I remove sdc6 and be sure the
array will not stop?
To make things worse, I see no disk failures in any log file. So
I am not sure how sdc is actually failing.
Thanks,
Alberto
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