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Failing Harddisk SATA Issues

Hello folks.

The Preamble

Bit of advice required. I have a failing HDD (probably failed in all honesty) that I'm trying to recover data from. If I coect the drive to a SATA port, I can see it, and mount it read only. I have tried to copy the drive to an image with ddrescue, but, it is taking an amazing amount of time (the drive is 2TB and it's doing about <1kByte/s).

I am currently using `rsync --ignore-errors -rtv /media/crappydrive /media/gooddrive` to copy the data back, but the Keel is going mad with errors. The filesystem is in good order aside from the bad blocks, but it appears the drive is timing out or something and the keel keeps on hard resetting the SATA bus. Something like:

Code:

[  +1.071966] ata6: SATA link up 1.5 Gbps (SStatus 113 SControl 310)
[  +1.777824] ata6.00: configured for UDMA/133
[  +0.000015] ata6: EH complete
[  +7.034099] ata6.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen
[  +0.000008] ata6.00: failed command: SMART
[  +0.000008] ata6.00: cmd b0/da:00:00:4f:c2/00:00:00:00:00/00 tag 7
                       res 40/00:ff:00:00:00/00:00:00:00:00/40 Emask 0x4 (timeout)
[  +0.000004] ata6.00: status: { DRDY }
[  +0.000009] ata6: hard resetting link
[Jun11 02:49] ata6: softreset failed (1st FIS failed)
[  +0.000008] ata6: hard resetting link
[  +9.999770] ata6: softreset failed (1st FIS failed)
[  +0.000010] ata6: hard resetting link
[  +2.919850] ata6: SATA link up 1.5 Gbps (SStatus 113 SControl 310)
[  +1.193028] ata6.00: configured for UDMA/133
[  +0.000015] ata6: EH complete
[Jun11 02:58] ata6.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen
[  +0.000010] ata6.00: failed command: SMART
[  +0.000010] ata6.00: cmd b0/d0:01:00:4f:c2/00:00:00:00:00/00 tag 29 pio 512 in
                       res 40/00:01:00:4f:c2/00:00:00:00:00/00 Emask 0x4 (timeout)
[  +0.000004] ata6.00: status: { DRDY }
[  +0.000005] ata6: hard resetting link
[  +9.999721] ata6: softreset failed (1st FIS failed)
[  +0.000009] ata6: hard resetting link
[  +9.999734] ata6: softreset failed (1st FIS failed)
[  +0.000008] ata6: hard resetting link
This will carry on, working for a while, slowly, copying the files, and resetting the bus - rsync will wait while the bus is reset, and carry on after it retus. However, after a while, it goes mad, and I get something like:

Code:

[  +0.000002] blk_update_request: I/O error, dev sdk, sector 3509806344
[  +0.000833] sd 5:0:0:0: [sdk] tag#8 FAILED Result: hostbyte=DID_BAD_TARGET driverbyte=DRIVER_OK
[  +0.000004] sd 5:0:0:0: [sdk] tag#8 CDB: Read(10) 28 00 d1 33 65 08 00 00 08 00
[  +0.000002] blk_update_request: I/O error, dev sdk, sector 3509806344
[  +0.000814] sd 5:0:0:0: [sdk] tag#9 FAILED Result: hostbyte=DID_BAD_TARGET driverbyte=DRIVER_OK
[  +0.000003] sd 5:0:0:0: [sdk] tag#9 CDB: Read(10) 28 00 d1 33 65 08 00 00 08 00
[  +0.000002] blk_update_request: I/O error, dev sdk, sector 3509806344
[  +6.360839] scsi_io_completion: 5452 callbacks suppressed
[  +0.000010] sd 5:0:0:0: [sdk] tag#6 FAILED Result: hostbyte=DID_BAD_TARGET driverbyte=DRIVER_OK
[  +0.000006] sd 5:0:0:0: [sdk] tag#6 CDB: Write(10) 2a 00 6e 84 0d 48 00 00 18 00
[  +0.000003] blk_update_request: 5452 callbacks suppressed
[  +0.000003] blk_update_request: I/O error, dev sdk, sector 1854147912
[  +0.000079] Aborting joual on device sdk2-8.
and rsync just reports I/O error.

I just want to salvage as much data as is possible. I have the data backed up in several places, so I won't loose it, but it's inconvenient and slow to restore, so I would like to salvage as much as I can. But I can't wait for the 30 days that ddrescue wants to take. I'm not that keen.

The Question

Is there anything I can tell the Keel to speed this process up? I assume the OS knows the disc has had it, I'd rather it gave up on dead sectors quickly, and got to those that it can read, rather than hanging on for millions of hours trying to get an extra byte out of a dead sector.

Maximum fast recovery is required.

Suggestions greatly welcomed.

Thanks, all... I know nothing about HDD and that kind of thing...

برچسب: نویسنده: استخدام کار تاريخ: شنبه 22 خرداد 1395 ساعت: 10:47

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