How this is possible ?
seems that sdc has some failed sectors but disk is still active in the array
[Mon May 2 03:36:24 2022] sd 0:0:2:0: [sdc] Unhandled sense code
[Mon May 2 03:36:24 2022] sd 0:0:2:0: [sdc]
[Mon May 2 03:36:24 2022] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[Mon May 2 03:36:24 2022] sd 0:0:2:0: [sdc]
[Mon May 2 03:36:24 2022] Sense Key : Medium Error [current]
[Mon May 2 03:36:24 2022] Info fld=0x10565570
[Mon May 2 03:36:24 2022] sd 0:0:2:0: [sdc]
[Mon May 2 03:36:24 2022] Add. Sense: Unrecovered read error
[Mon May 2 03:36:24 2022] sd 0:0:2:0: [sdc] CDB:
[Mon May 2 03:36:24 2022] Read(10): 28 00 10 56 51 80 00 04 00 00
[Mon May 2 03:36:24 2022] end_request: critical medium error, dev
sdc, sector 274093424
[Mon May 2 03:36:25 2022] sd 0:0:2:0: [sdc] Unhandled sense code
[Mon May 2 03:36:25 2022] sd 0:0:2:0: [sdc]
[Mon May 2 03:36:25 2022] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[Mon May 2 03:36:25 2022] sd 0:0:2:0: [sdc]
[Mon May 2 03:36:25 2022] Sense Key : Medium Error [current]
[Mon May 2 03:36:25 2022] Info fld=0x10565584
[Mon May 2 03:36:25 2022] sd 0:0:2:0: [sdc]
[Mon May 2 03:36:25 2022] Add. Sense: Unrecovered read error
[Mon May 2 03:36:25 2022] sd 0:0:2:0: [sdc] CDB:
[Mon May 2 03:36:25 2022] Read(10): 28 00 10 56 55 80 00 04 00 00
[Mon May 2 03:36:25 2022] end_request: critical medium error, dev
sdc, sector 274093444
[Mon May 2 04:06:32 2022] md: md0: data-check done.
# cat /proc/mdstat
Personalities : [raid1]
md0 : active raid1 sdc1[2] sda1[0] sdb1[1]
292836352 blocks super 1.2 [3/3] [UUU]
bitmap: 3/3 pages [12KB], 65536KB chunk
unused devices: <none>
