Pravděpodobně se loučí disk. Co vypíše smartctl -a /dev/sdd?
root@debian:/home/supervisor# smartctl -a /dev/sdd
smartctl 6.4 2014-10-07 r4002 [x86_64-linux-3.16.0-4-amd64] (local build)
Copyright (C) 2002-14, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF INFORMATION SECTION ===
Vendor: /2:0:0:0
Product:
Compliance: SPC-5
User Capacity: 600,332,565,813,390,450 bytes [600 PB]
Logical block size: 774843950 bytes
scsiModePageOffset: response length too short, resp_len=47 offset=50 bd_len=46
scsiModePageOffset: response length too short, resp_len=47 offset=50 bd_len=46
>> Terminate command early due to bad response to IEC mode page
A mandatory SMART command failed: exiting. To continue, add one or more '-T permissive' options.
tady jde vidět, že s dikem je vážně něco špatně, na
/dev/sdc to proběhne v pořádku ...sdc a sdd je SW RAID 1