scsi reset problem

[mobidyc]

Hello,

i had twice a day some scsi reset so, i've installed scsi terminator and now, i've these error messages:
May 30 07:24:17 nr0u0442 vmunix: SCSI: Target detected parity error -- lbolt: 24386, dev: cb049002
May 30 07:24:18 nr0u0442 above message repeats 24 times
May 30 07:24:18 nr0u0442 vmunix: SCSI: First party detected bus hang -- lbolt: 24413, bus: 4
May 30 07:24:18 nr0u0442 vmunix: lbp->state: 3060
May 30 07:24:18 nr0u0442 vmunix: lbp->offset: 2a8
May 30 07:24:18 nr0u0442 vmunix: lbp->uPhysScript: a0010000
May 30 07:24:18 nr0u0442 vmunix: From most recent interrupt:
May 30 07:24:18 nr0u0442 vmunix: ISTAT: 29, SIST0: 00, SIST1: 00, DSTAT: 84, DSPS: 00000005
May 30 07:24:18 nr0u0442 vmunix: lsp: 0000000000000000
May 30 07:24:18 nr0u0442 vmunix: lbp->owner: 000000004aaeac00
May 30 07:24:18 nr0u0442 vmunix: bp->b_dev: cb049002
May 30 07:24:18 nr0u0442 vmunix: scb->io_id: 4000188
May 30 07:24:18 nr0u0442 vmunix: scb->cdb: 12 00 00 00 80 00
May 30 07:24:18 nr0u0442 vmunix: lbolt_at_timeout: 24410, lbolt_at_start: 23910
May 30 07:24:18 nr0u0442 vmunix: lsp->state: 5
May 30 07:24:18 nr0u0442 vmunix: scratch_lsp: 000000004aaeac00
May 30 07:24:18 nr0u0442 vmunix: Pre-DSP script dump [ffffffffa0010028]:
May 30 07:24:18 nr0u0442 vmunix: 41090000 a0010290 980dff00 0000000a
May 30 07:24:18 nr0u0442 vmunix: 78351800 00000000 0e000005 a0010540
May 30 07:24:18 nr0u0442 vmunix: SCSI: Target detected parity error -- lbolt: 24406, dev: cb049002
May 30 07:24:18 nr0u0442 above message repeats 14 times
May 30 07:24:18 nr0u0442 vmunix: Script dump [ffffffffa0010048]:
May 30 07:24:18 nr0u0442 vmunix: e0100004 a00107f8 870b0000 a00102d8
May 30 07:24:18 nr0u0442 vmunix: 98080000 00000005 721a0000 00000000
May 30 07:24:19 nr0u0442 vmunix: SCSI: Resetting SCSI -- lbolt: 24513, bus: 4
May 30 07:24:19 nr0u0442 vmunix: SCSI: Reset detected -- lbolt: 24513, bus: 4

ioscan is extremely slow and all is CLAIMED (except a pci display).

model: 9000/800/rp3440

any advices?

Regards,
Cédrick Gaillard

[Robert-Jan Goossens · Accepted solution]

Hi Cédrick,

SCSI: Target detected parity error -- lbolt: 24406, dev: cb049002

cb 049002

$ printf "%#d\n" 0xcb
203
$ /usr/sbin/lsdev 203
Character Block Driver Class
203 -1 sctl ctl

This seems a scsi to be a scsi controller problem, do you have changed something on the scsi controller (added a tape drive)?

Regards,
Robert-Jan

[Fabio Ettore]

Hi,

I suppose your system has an HW problem on dev cb049002 which corresponds to cb=203 c4t9d0. It should be the picker.
Verify by lsdev which driver is for 203.

Then check cable and all about that device.

Hope this helps you.

Best regards,
Fabio

[mobidyc]

thanks for your help.

i've receive the EMS alert:
http://docs.hp.com/hpux/content/hardware/ems/disk_em.htm#17
on the disk /dev/dsk/c4t10d0

i'm going to remove this disk to see if the problem persists or not.

thanks
Regards,
Cédrick Gaillard

[Fabio Ettore]

Hi,

if the problem was on disk then you would see something like dev: 1f049002, where 1f=31 ---> sdisk, instead we see cb=203, so I would suggest checking that path though.

Best regards,
Fabio