Hi,
I finally backed up all my data, and switched from a RAID5 with spare
to a RAID6.
After putting back the data, I performed a check on my RAID array.
Note that it was with a timeout of 30".
In the dmesg, I noticed a bunch (92 !) of read errors.
[113036.865662] ata3.00: exception Emask 0x0 SAct 0x3 SErr 0x0 action 0x0
[113036.865671] ata3.00: irq_stat 0x40000008
[113036.865679] ata3.00: failed command: READ FPDMA QUEUED
[113036.865692] ata3.00: cmd 60/00:00:88:ab:c5/04:00:e3:00:00/40 tag 0
ncq 524288 in
[113036.865692] res 41/40:00:a8:ae:c5/00:00:e3:00:00/40 Emask
0x409 (media error) <F>
[113036.865699] ata3.00: status: { DRDY ERR }
[113036.865703] ata3.00: error: { UNC }
[113036.866993] ata3.00: configured for UDMA/133
[113036.867111] sd 2:0:0:0: [sdc] Unhandled sense code
[113036.867116] sd 2:0:0:0: [sdc]
[113036.867120] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[113036.867124] sd 2:0:0:0: [sdc]
[113036.867127] Sense Key : Medium Error [current] [descriptor]
[113036.867134] Descriptor sense data with sense descriptors (in hex):
[113036.867137] 72 03 11 04 00 00 00 0c 00 0a 80 00 00 00 00 00
[113036.867153] e3 c5 ae a8
[113036.867161] sd 2:0:0:0: [sdc]
[113036.867167] Add. Sense: Unrecovered read error - auto reallocate failed
[113036.867171] sd 2:0:0:0: [sdc] CDB:
[113036.867174] Read(10): 28 00 e3 c5 ab 88 00 04 00 00
[113036.867189] end_request: I/O error, dev sdc, sector 3821383336
[113036.867240] ata3: EH complete
They all are on the same drive : sdc (WD Red).
Here is a "smarctl -a /dev/sdc" : http://pastie.org/8491779
It's a recent drive (3000 hours => 4 months), is it currently dying ?
Thanks,
gUI
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