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Иван Пономарев @gumanzoy

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Профиль Публикации 11Комментарии 88Закладки

Костыли для ddrescue. Что делать если SSD перестает отдавать данные

А вот и еще один пациент SATA SSD 500GB. Отваливается на каждом битом секторе.
При этом определяется снова если немного подождать.
Указал ddrescue читать по одному сектору -b 4096 -c 1

Мой скрипт работает как с реле так и без. Разница только в том что с реле чуть быстрее.

ddrescue-loop -ata 6 -loop 9999 -pwc -wait 2 -act 2 /dev/loop0 goldenfir500.log -b 4096 -c 1 -O -P

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Вывод dmesg

ata6.00: ATA-9: SSD 500GB, HPS2227O, max UDMA/133
ata6.00: 976773168 sectors, multi 1: LBA48 NCQ (depth 32), AA
ata6.00: configured for UDMA/133
scsi 5:0:0:0: Direct-Access     ATA      SSD 500GB        227O PQ: 0 ANSI: 5
sd 5:0:0:0: Attached scsi generic sg3 type 0
sd 5:0:0:0: [sdc] 976773168 512-byte logical blocks: (500 GB/466 GiB)
sd 5:0:0:0: [sdc] Write Protect is off
sd 5:0:0:0: [sdc] Mode Sense: 00 3a 00 00
sd 5:0:0:0: [sdc] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
 sdc: sdc1 sdc2 sdc3 sdc4
sd 5:0:0:0: [sdc] Attached SCSI removable disk
ata6.00: exception Emask 0x0 SAct 0x20000000 SErr 0x0 action 0x6 frozen
ata6.00: failed command: READ FPDMA QUEUED
ata6.00: cmd 60/08:e8:20:01:28/00:00:01:00:00/40 tag 29 ncq dma 4096 in
         res 40/00:ff:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
ata6.00: status: { DRDY }
ata6: hard resetting link
ata6: link is slow to respond, please be patient (ready=0)
ata6: COMRESET failed (errno=-16)
ata6: hard resetting link
ata6: link is slow to respond, please be patient (ready=0)
ata6: COMRESET failed (errno=-16)
ata6: hard resetting link
ata6: link is slow to respond, please be patient (ready=0)
ata6: COMRESET failed (errno=-16)
ata6: limiting SATA link speed to 1.5 Gbps
ata6: hard resetting link
ata6: COMRESET failed (errno=-16)
ata6: reset failed, giving up
ata6.00: disabled
ata6: EH complete
sd 5:0:0:0: [sdc] tag#30 FAILED Result: hostbyte=DID_BAD_TARGET driverbyte=DRIVER_OK cmd_age=62s
sd 5:0:0:0: [sdc] tag#30 CDB: Read(10) 28 00 01 28 01 20 00 00 08 00
blk_update_request: I/O error, dev sdc, sector 19398944 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0
Alternate GPT is invalid, using primary GPT.
 loop0: p1 p2 p3 p4
sd 5:0:0:0: [sdc] Stopping disk
sd 5:0:0:0: [sdc] Start/Stop Unit failed: Result: hostbyte=DID_BAD_TARGET driverbyte=DRIVER_OK
ata6: SATA link down (SStatus 0 SControl 300)
ata6: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
ata6.00: ATA-9: SSD 500GB, HPS2227O, max UDMA/133
ata6.00: 976773168 sectors, multi 1: LBA48 NCQ (depth 32), AA
ata6.00: configured for UDMA/133
scsi 5:0:0:0: Direct-Access     ATA      SSD 500GB        227O PQ: 0 ANSI: 5
sd 5:0:0:0: Attached scsi generic sg3 type 0
sd 5:0:0:0: [sdc] 976773168 512-byte logical blocks: (500 GB/466 GiB)
sd 5:0:0:0: [sdc] Write Protect is off
sd 5:0:0:0: [sdc] Mode Sense: 00 3a 00 00
sd 5:0:0:0: [sdc] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
 sdc: sdc1 sdc2 sdc3 sdc4
sd 5:0:0:0: [sdc] Attached SCSI removable disk