MO trouble (2048 bytes/sector)

Joerg Plate (plate@psyche.kn-bremen.de)
15 Feb 1999 06:41:04 +0100


Hello-hello,

I have problems with my MO-drive...

Kernel 2.2.1-ac5
fdisk v2.9i
mke2fs 1.14, 9-Jan-1999 for EXT2 FS 0.5b, 95/08/09
Using EXT2FS Library version 1.14

fdisk -b 2048 /dev/sdb worked
mke2fs -b 2048 /dev/sdb1 worked
cp something /dev/sdb1 failed... horribly...

Excepts from "/var/log/syslog"

kernel: SCSI device sdb: hdwr sector= 2048 bytes. Sectors= 310352 [606 MB] [0.6 GB]
Looks good (afaik)

kernel: sdb: Write Protect is off
kernel: sdb: sdb1
kernel: ll_rw_block: device 08:10: only 2048-char blocks implemented (1024)
Why does something try to read 1024 bytes from /dev/sdb ?

kernel: scsi0: MEDIUM ERROR on channel 0, id 4, lun 0, CDB: Read (6) 04 b0 5b 0f 00
kernel: Current error sd08:11: sense key Medium Error
kernel: Additional sense indicates Unrecovered read error
kernel: scsidisk I/O error: dev 08:11, sector 1229048
kernel: SCSI disk error : host 0 channel 0 id 4 lun 0 return code = 28000002
kernel: extra data not valid Current error sd08:11: sense key Hardware Error
kernel: Additional sense indicates Positioning error detected by read of medium
kernel: scsidisk I/O error: dev 08:11, sector 1229072
[more errors with different sectors removed]
kernel: scsi0: MEDIUM ERROR on channel 0, id 4, lun 0, CDB: Write (6) 04 b0 66 37 00
kernel: extra data not valid Current error sd08:11: sense key Medium Error
kernel: Additional sense indicates Write error - auto reallocation failed
kernel: scsidisk I/O error: dev 08:11, sector 1229080

I suspect a bad disk, except for the ll_rw_block error. Maybe I should

-- 
"I'm working on it."

"There should be more math. This could be mathier."

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