Hi,
I recently tried to re-format a couple of 520byte/sector SCSI harddisks to 512bytes/sector. Most of them worked fine; however, two formats have been aborted halfway through. One of them always reported "medium format corrupted", and I was able to fix this one by re-formatting the disk which worked on the 3rd try or so.
The other disk keeps reporting "not ready" and I can't seem to re-start the format on this disk. Here's the output of sg_format for this disk:
-------------------------------------------------------------------
lavie:~# sg_format --format -vvv --count=-1 --size=512 /dev/sg1
open /dev/sg1 with flags=0x802
inquiry cdb: 12 00 00 00 24 00
duration=4 ms
SEAGATE ST314680 CLAR146 7A10 peripheral_type: disk [0x0]
PROTECT=0
mode sense (10) cdb: 5a 00 01 00 00 00 00 00 fc 00
duration=0 ms
mode sense (10): Fixed format, current; Sense key: Not Ready
Additional sense: Logical unit not ready, cause not reportable
Field replaceable unit code: 2
Raw sense data (in hex):
70 00 02 00 00 00 00 0a 00 00 00 00 04 00 02 00
00 00
requested 252 bytes but got 0 bytes
MODE SENSE (10) command, device not ready
-------------------------------------------------------------------
Test Unit Ready also reports "not ready":
-------------------------------------------------------------------
lavie:~# sg_turs -vvv /dev/sg1
open /dev/sg1 with flags=0x800
test unit ready cdb: 00 00 00 00 00 00
duration=0 ms
test unit ready: Fixed format, current; Sense key: Not Ready
Additional sense: Logical unit not ready, cause not reportable
Field replaceable unit code: 2
Raw sense data (in hex):
70 00 02 00 00 00 00 0a 00 00 00 00 04 00 02 00
00 00
device not ready
-------------------------------------------------------------------
And "start unit" doesn't work either:
-------------------------------------------------------------------
lavie:~# sg_start -vvv /dev/sg1
open /dev/sg1 with flags=0x802
Start stop unit command: 1b 00 00 00 01 00
duration=0 ms
start stop unit: Fixed format, current; Sense key: Not Ready
Additional sense: Logical unit not ready, cause not reportable
Field replaceable unit code: 2
Raw sense data (in hex):
70 00 02 00 00 00 00 0a 00 00 00 00 04 00 02 00
00 00
START STOP UNIT command failed
-------------------------------------------------------------------
(The controller is an MPT FC card, /proc/scsi/mptfc/* says "LSIFC919 B0", just in case it matters)
Anyone know of any other method I could try to recover from this condition? Or is the disk eternally broken?
Thanks,
-Michael
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