topic Re: scsi reset problem in Operating System - HP-UX

scsi reset problem

mobidyc — Fri, 30 May 2008 07:41:49 GMT

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

Re: scsi reset problem

Robert-Jan Goossens — Fri, 30 May 2008 08:02:46 GMT

Hi CÃ©drick,

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

Re: scsi reset problem

Fabio Ettore — Fri, 30 May 2008 08:05:41 GMT

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

Re: scsi reset problem

mobidyc — Fri, 30 May 2008 08:57:57 GMT

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,
CÃ©drick Gaillard

Re: scsi reset problem

Fabio Ettore — Fri, 30 May 2008 09:09:35 GMT

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