Install the smartmon tools.
Run smartctl -a on the drive. It may tell you something. Has the disk ever been dropped? Is the "on time" in smart too high compared to when you bought it (have they sold you a second hand drive)?

Sendt fra min Sony Xperia™-smarttelefon



---- jd1008 skrev ----

Hi all,
on a new drive, installed about 3 months ago ... fsck shows:



Pass 5: Checking group summary information
117.650425] ata5.00: exception Emask 0x0 SAct 0xc0 SErr 0x0 action 0x0
117.650678] ata5.00: irq_stat 0x40000008
117.650840] ata5.00: failed command: READ FPDMA QUEUED
117.651523] ata5.00: cmd 60/80:30:68:08:40/00:00:be:00:00/40 tag 6
ncq 65536 in
117.651523]          res 41/40:00:b0:08:40/00:00:be:00:00/40 Emask
0x409 (media error) <F>
117.652872] ata5.00: status: { DRDY ERR }
117.653547] ata5.00: error: { UNC }
117.655604] ata5.00: configured for UDMA/133
117.655825] sd 4:0:0:0: [sdb]
117.655991] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
117.656631] sd 4:0:0:0: [sdb]
117.657288] Sense Key : Medium Error [current] [descriptor]
117.657966] Descriptor sense data with sense descriptors (in hex):
117.658652]         72 03 11 04 00 00 00 0c 00 0a 80 00 00 00 00 00
117.659381]         be 40 08 b0
117.660065] sd 4:0:0:0: [sdb]
117.660703] Add. Sense: Unrecovered read error - auto reallocate failed
117.661349] sd 4:0:0:0: [sdb] CDB:
117.661981] Read(10): 28 00 be 40 08 68 00 00 80 00
117.662667] blk_update_request: I/O error, dev sdb, sector 3191867568
117.663323] ata5: EH complete
129.095402] ata5.00: exception Emask 0x0 SAct 0x3000000 SErr 0x0
action 0x0
129.095663] ata5.00: irq_stat 0x40000008
129.095826] ata5.00: failed command: READ FPDMA QUEUED
129.096434] ata5.00: cmd 60/00:c0:e8:08:00/01:00:c2:00:00/40 tag 24
ncq 131072 in
129.096434]          res 41/40:00:90:09:00/00:00:c2:00:00/40 Emask
0x409 (media error) <F>
129.097727] ata5.00: status: { DRDY ERR }
129.098393] ata5.00: error: { UNC }
129.100528] ata5.00: configured for UDMA/133
129.100768] sd 4:0:0:0: [sdb]
129.100935] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
129.101530] sd 4:0:0:0: [sdb]
129.102128] Sense Key : Medium Error [current] [descriptor]
129.102728] Descriptor sense data with sense descriptors (in hex):
129.103349]         72 03 11 04 00 00 00 0c 00 0a 80 00 00 00 00 00
129.103998]         c2 00 09 90
129.104645] sd 4:0:0:0: [sdb]
129.105280] Add. Sense: Unrecovered read error - auto reallocate failed
129.105911] sd 4:0:0:0: [sdb] CDB:
129.106567] Read(10): 28 00 c2 00 08 e8 00 01 00 00
129.107271] blk_update_request: I/O error, dev sdb, sector 3254782352
129.107954] ata5: EH complete

So, I am puzzled as to how quickly were the spare sectors consumed so that
automatic sector forwarding ran out os spare sectors? So quickly on a
brand new drive??
When someone buys a brand new drive, how many spare sectors is it guaranteed
to have? ZERO? ONE??  How many?


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