[ale] SCSI problems

[Mike Kachline]

	Guys,

	I'm getting a slew of errors to the tune of (see below .signature
here). Has anyone seen these before? These occur on a fairly frequent
basis, and I suspect are also related to the load encurrent on the drive.
My questions are as follows:
	1. Is "badblocks" really worth using? Does it cause the OS to
avoid using "bad" parts of the drive?
	2. Does this look like a dead drive to you too?
	3. What is a good way to map SCSI ID's to /devs/sdbX's?


						Thanks,
							- Mike
====================================================================
Michael Kachline - CS, Georgia Tech
kachline at cc.gatech.edu
http://brightstar.gt.ed.net/kachline/
====================================================================



<snip>
ncr53c810-0: have to clear fifos.
ncr53c810-0: unexpected disconnect
ncr53c810-0-<2,0>: COMMAND FAILED (8a 0) @c0006020.
SCSI disk error : host 0 channel 0 id 2 lun 0 return code = 27070000
scsidisk I/O error: dev 08:12, sector 16
EXT2-fs error (device 08:12): ext2_write_inode: unable to read inode block
- ino
de=2, block=8
ncr53c810-0: SCSI parity error detected: SCR1=64 DBC=1e000000 SSTAT1=e
ncr53c810-0: restart (scsi reset).
ncr53c810-0-<0,*>: FAST-10 SCSI 10.0 MB/s (100 ns, offset 8)
scsi0 channel 0 : resetting for second half of retries.
SCSI bus is being reset for host 0 channel 0.
ncr53c8xx_reset: pid=120933 reset_flags=1 serial_number=0
serial_number_at_timeo
ut=0
ncr53c810-0: restart (scsi reset).
ncr53c810-0:2: ERROR (0:4) (8-0-0) (0/3) @ (script 6c:1e000000).
ncr53c810-0: script cmd = 860b0000
ncr53c810-0: regdump: da 00 80 03 47 00 02 1f 71 08 00 00 00 20 0e 02.
ncr53c810-0: have to clear fifos.
ncr53c810-0: unexpected disconnect
ncr53c810-0-<2,0>: COMMAND FAILED (8a 0) @c0006020.
ncr53c810-0: SCSI parity error detected: SCR1=64 DBC=1e000000 SSTAT1=f
ncr53c810-0: restart (scsi reset).
ncr53c810-0-<0,*>: FAST-10 SCSI 10.0 MB/s (100 ns, offset 8)
SCSI disk error : host 0 channel 0 id 2 lun 0 return code = 2603007f
scsidisk I/O error: dev 08:12, sector 2
scsi0 channel 0 : resetting for second half of retries.
SCSI bus is being reset for host 0 channel 0.
ncr53c8xx_reset: pid=121151 reset_flags=1 serial_number=0
serial_number_at_timeo
ut=0
ncr53c810-0: restart (scsi reset).
ncr53c810-0:2: ERROR (0:4) (8-0-0) (0/3) @ (script 6c:1e000000).
ncr53c810-0: script cmd = 860b0000
ncr53c810-0: regdump: da 00 80 03 47 00 02 1f 71 08 00 00 00 20 06 02.
ncr53c810-0: have to clear fifos.
ncr53c810-0: unexpected disconnect
ncr53c810-0-<2,0>: COMMAND FAILED (8a 0) @c0006020.
ncr53c810-0: SCSI parity error detected: SCR1=64 DBC=1e000000 SSTAT1=7
ncr53c810-0: restart (scsi reset).
ncr53c810-0-<0,*>: FAST-10 SCSI 10.0 MB/s (100 ns, offset 8)
ncr53c810-0-<2,*>: FAST-10 SCSI 10.0 MB/s (100 ns, offset 8)
ncr53c810-0-<4,*>: FAST-10 SCSI 10.0 MB/s (100 ns, offset 8)
SCSI disk error : host 0 channel 0 id 2 lun 0 return code = 28000002
extra data not valid Current error sd08:12: sense key Not Ready
Additional sense indicates Logical unit is in process of becoming ready
scsidisk I/O error: dev 08:12, sector 2
<snip>