SCSI tape deck errors

[Ravinder Singh Gill]

If a server's tape deck is getting SCSI errors this would be in the server's syslog would it not?

[Arunvijai_4]

Check /var/adm/syslog/syslog.log and # dmesg for more information.

-Arun

[RAC_1]

Yes. Unless you configured syslog.conf to go it somewhere else.

[Stephen Keane]

Yes. It might also be displayed on the console. Depends on how /etc/syslog.conf is setup.

[Devender Khatana · Accepted solution]

Hi,


Yes it would be in syslog.log and dmesg. Also if EMS alerts are configured then for EMS messages in syslog.log, corresponding entries will be found in /var/opt/resmon/log/event.log

HTH,
Devender

[Muthukumar_5]

scsi errors will come using dmesg. You have to redirect as,

/usr/sbin/dmesg - >> /var/adm/messages using cron schedular.

hth.

[Muthukumar_5]

You have to configure /etc/syslog.conf regardingly.

*.debug /var/adm/syslog/syslog.log

and do,

kill -HUP `cat /etc/syslog.pid`

It will log all informations there.

hth.

[Ravinder Singh Gill]

We are having problems with the tape deck on one of our servers. It has been recently replaced but kept failing during a restore last week. My colleague has told me to raise a call with HP to look into the SCSI tapedeck errors. I have looked in syslog and I can only see the following relating to syslog:

Sep 28 16:11:11 hp10 vmunix: SCSI: Resetting SCSI -- lbolt: 1534055, bus: 6
Sep 28 16:11:11 hp10 vmunix: SCSI: Reset detected -- lbolt: 1534055, bus: 6
Sep 28 16:17:59 hp10 syslog: HP Advanced Disk Array serial number 0000000FBA0B:
Optimization in progress: Product Revision: HP56: Product ID: C5447A
Sep 28 16:23:17 hp10 syslog: HP Advanced Disk Array serial number 0000000FBA0B:
Optimization completed: Product Revision: HP56: Product ID: C5447A
Sep 28 17:27:01 hp10 vmunix: SCSI: Resetting SCSI -- lbolt: 1989037, bus: 6
Sep 28 17:27:01 hp10 vmunix: SCSI: Reset detected -- lbolt: 1989037, bus: 6

Are these SCSI errors or am I looking at the wrong thing?

[Stephen Keane]

Yes those are SCSI errors. But they seem to be bus errors rather than any specific device. Do you have any other SCSI errors in your log(s)?

[Devender Khatana]

Hi,

The errors can come sometime when you remove/attach the drive. The same should not come under normal operation of the drive. What is your case?

HTH,
Devender

[Muthukumar_5]

Refer this:

http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=745182

http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=722132

Check this:

# vgdisplay -v | grep stale
# ioscan -fnC disk check NO_HW

hth.

[Arunvijai_4]

# ioscan -fnkC ext_bus

instance 0 is the hardware path of the SCSI controller reporting the errors. try to find out what devices are attached to this SCSI controller.

[Ravinder Singh Gill]

we did not disconnect the tape deck.

We did have 2 disks fail on the same array prior to this but these are now all okay.

[Stephen Keane]

Do you have the tape drive and disks on the same SCSI bus? It can cause problems if you have a mix of slow and fast devices on the same bus.

[Ravinder Singh Gill]

thanks