Hey,
I've a weird issue with a RAID6 setup, /proc/mdstat says:
> md126 : active raid6 sda1[3] sdh1[6] sdg1[0](F) sdf1[5] sdi1[1] sdc[8] sdb[7]
> 9767559680 blocks super 1.2 level 6, 512k chunk, algorithm 2 [7/6] [_UUUUUU]
So sdg1 is (F)ailed, yet `mdadm --remove` yields:
> md: cannot remove active disk sdg1 from md126 ...
in dmesg...
`mdadm --examine` shows:
> /dev/sdg1:
> Magic : a92b4efc
> Version : 1.2
> Feature Map : 0x0
> Array UUID : ff9e032c:446ed0bd:fc9473f3:f8e090ed
> Name : media:store (local to host media)
> Creation Time : Tue Sep 13 21:36:43 2011
> Raid Level : raid6
> Raid Devices : 7
>
> Avail Dev Size : 3907024896 (1863.01 GiB 2000.40 GB)
> Array Size : 19535119360 (9315.07 GiB 10001.98 GB)
> Used Dev Size : 3907023872 (1863.01 GiB 2000.40 GB)
> Data Offset : 2048 sectors
> Super Offset : 8 sectors
> State : clean
> Device UUID : 4bcee8e2:709419b6:fbeb3a8e:5c9bb68a
>
> Update Time : Sat May 12 21:57:27 2012
> Checksum : ffb03189 - correct
> Events : 304564
>
> Layout : left-symmetric
> Chunk Size : 512K
>
> Device Role : Active device 0
> Array State : AAAAAAA ('A' == active, '.' == missing)
So that superblock thinks it's active, but that's normal, right? It
wasn't updated due to fail? Others correctly show:
> dev/sdc:
> Magic : a92b4efc
> Version : 1.2
> Feature Map : 0x0
> Array UUID : ff9e032c:446ed0bd:fc9473f3:f8e090ed
> Name : media:store (local to host media)
> Creation Time : Tue Sep 13 21:36:43 2011
> Raid Level : raid6
> Raid Devices : 7
>
> Avail Dev Size : 3907027120 (1863.02 GiB 2000.40 GB)
> Array Size : 19535119360 (9315.07 GiB 10001.98 GB)
> Used Dev Size : 3907023872 (1863.01 GiB 2000.40 GB)
> Data Offset : 2048 sectors
> Super Offset : 8 sectors
> State : clean
> Device UUID : b713fd2b:eef145b0:ce91de0a:9077554b
>
> Update Time : Sat May 12 21:57:57 2012
> Checksum : 80345876 - correct
> Events : 304581
>
> Layout : left-symmetric
> Chunk Size : 512K
>
> Device Role : Active device 2
> Array State : .AAAAAA ('A' == active, '.' == missing)
Any ideas?
Cheers,
--
Michał Sawicz <michal@xxxxxxxxxx>
Attachment:
signature.asc
Description: This is a digitally signed message part
