problemy se SCSI

[Jan X. Postransky]

dobry vecer
nedavno jsem si poridil Ultra-Wide SCSI radic (Diamond Fireport 40) a Fast
SCSI disk (Quantum Atlas XP32150). Disk je pripojen na narrow (50 pin)
ksande (asi 1 m dlouha) a je to jedine zarizeni na radici. Na disku mam
naswitchovany terminator (aktivni) i termination power. Pro radic mam v
jadre (2.0.36) ovladac ncr53c8xx. Pomoci lila mu pri bootu predavam
nejbezpecnejsi parametry (vypnute ultra, wide, disconnecting, tagged
queing, ...). Disk se mi dari naformatovat pouze bez kontroly bad blocku
(funguje to jenom po predchozim "low level" formatu z BIOSu radice). Po
nejake dobe provozu (cca 30 min az 2 hod) se ale disk zacne divne chovat a
objevevuji se hlasky:

scsi : aborting command due to timeout : pid 313, scsi0, channel 0, id 0, lun 0 0x08 02 7b 18 02 00 
ncr53c8xx_abort: pid=313 serial_number=321 serial_number_at_timeout=321
ncr53c875J-0: SCSI phase error fixup: CCB already dequeued (0x0001c820)
scsi : aborting command due to timeout : pid 313, scsi0, channel 0, id 0, lun 0 0x08 02 7b 18 02 00 
ncr53c8xx_abort: pid=313 serial_number=322 serial_number_at_timeout=322
SCSI host 0 abort (pid 313) timed out - resetting
SCSI bus is being reset for host 0 channel 0.
ncr53c8xx_reset: pid=313 reset_flags=2 serial_number=323 serial_number_at_timeout=323
ncr53c875J-0: resetting, command processing suspended for 5 seconds
ncr53c875J-0: restart (scsi reset).
ncr53c875J-0: enabling clock multiplier
ncr53c875J-0: command processing resumed
ncr53c875J-0-<0,0>: FAST-10 SCSI 10.0 MB/s (100 ns, offset 15)
scsi0: MEDIUM ERROR on channel 0, id 0, lun 0, CDB: 0x08 02 7f 1c 02 00 
Current error sd08:02: sns = f0  3
ASC=11 ASCQ= 0
Raw sense data:0xf0 0x00 0x03 0x00 0x02 0x7f 0x1d 0x0a 0x00 0x9a 0x00 0x86 0x11 0x00 0x00 0x80 
scsidisk I/O error: dev 08:02, sector 30684, absolute sector 163612
VFS: Disk change detected on device 02:00

Muze nekdo poradit jak tento problem vyresit? Muze to byt zpusobeno vadnym
hardwarem?

Honza


-----
 Jan X. Postransky, PhD student
 Faculty Of Mechanical Engineering, Czech Technical University, Prague
 e-mail: postry na gandalf.fsih.cvut.cz
 phone: +420(0)2/24915319 ext. 116, 328