topic Re: IOSCAN -f hanging, no response, not able to kill it - HP-UX 11.11 in Operating System - HP-UX

IOSCAN -f hanging, no response, not able to kill it - HP-UX 11.11

Michele (Mike) Alberton — Tue, 18 Jul 2006 07:18:34 GMT

Hi,

a strange one. Trying to ioscan -f an rp8400 running HP-UX 11.11. I did not get any response.
Same thing via SAM (Disks section).

I could not even kill the process, since it got adopted by PID 1.

Nothing strange in the syslog:

vmunix I/O hardware probe time out.

Have you had this behaviour ?

Thanks in advance !

Mike

Re: IOSCAN -f hanging, no response, not able to kill it - HP-UX 11.11

Jaime Bolanos Rojas. — Tue, 18 Jul 2006 07:32:21 GMT

Michelle,

Is everything else on the server working fine?

At first view, it looks like a hardware problem to me.

Can you reboot your machine, is it possible?

Run also some hardware testing with stm in the machine.

Regards,

Jaime.

Re: IOSCAN -f hanging, no response, not able to kill it - HP-UX 11.11

Sandman! — Tue, 18 Jul 2006 07:33:46 GMT

Usually caused when HP-UX has exhausted all bus instances available thereby causing ioscan hangs. You might need to install PHKL_31018; if possible could you post the output of:

# ioscan -funC ext_bus

~thanks

Re: IOSCAN -f hanging, no response, not able to kill it - HP-UX 11.11

Sandman! — Tue, 18 Jul 2006 07:34:40 GMT

Re: IOSCAN -f hanging, no response, not able to kill it - HP-UX 11.11

Peter Godron — Tue, 18 Jul 2006 07:56:40 GMT

Mike,
I have only had this type of problem if a hardware item, normally disk, did not respond. Reasons could be faulty disk (check with dmesg) or device termination fault.

Re: IOSCAN -f hanging, no response, not able to kill it - HP-UX 11.11

Michele (Mike) Alberton — Tue, 18 Jul 2006 07:58:03 GMT

Jaime,

Sorry for the disturb.

We verified that there was huge activity on the drives, so that maybe that was the cause.

Now everything is fine.

Thanks again !

Mike

Re: IOSCAN -f hanging, no response, not able to kill it - HP-UX 11.11

Michele (Mike) Alberton — Tue, 18 Jul 2006 08:02:10 GMT

Thanks a lot Folks!

Re: IOSCAN -f hanging, no response, not able to kill it - HP-UX 11.11

rick jones — Tue, 18 Jul 2006 20:08:15 GMT

99 times out of 10, one doesn't need to perform a real rescan of the I/O tree. As such, I find that adding 'k' to the command line to get what the kernel already knows sufficient:

ioscan -fk

it is particularly useful on larger systems - like the rp84XX's