topic Re: dmesg log in Operating System - HP-UX

dmesg log

mark.M — Thu, 08 Mar 2007 19:12:13 GMT

Hi, running rp7400.
i'm find of dmesg is follow.

HP Advanced Disk Array serial number 000800A0B809507 A: Disk drive removed: Disk 1:2: :vender: :product ID unknown state 0x23

HP Advanced Disk Array serial number 000800A0B809507 A: Disk drive unknown state 0x23: Disk 1:2:Vender:product ID

vmunix : No Timer IN_USE, Called stop_timers,Calling la

why?????

Re: dmesg log

Reshma Malusare — Thu, 08 Mar 2007 20:10:46 GMT

HI Mark,
Here error indicating that disk ie removed so product is in unknown state.but i suggest have a look on syslog messages.
Reason:
dmesg used to collect system diagnostic messages to form error log.dmesg looks in a system buffer for recently printed diagnostic messages and prints them on the standard output. The messages are those printed by the system when unusual events occur.
---->The system error message buffer is of small, finite size. dmesg is run only every few minutes, so there is no guarantee that all error messages will be logged.

Thanks & Regards
Reshma

Re: dmesg log

James R. Ferguson — Thu, 08 Mar 2007 20:11:12 GMT

Hi:

The 'dmesg' buffer is a finite circular buffer used to hold critical kernel diagnostic messages.

There is no timestamp associated with the message and what you see at any time could be very, very old.

If you like, you can run 'dmesg' with an '-' as an argument. This causes 'dmesg' to write only *new* messages since its last execution. Usually one 'cron's every 10-minutes to a log of its own, like:

date >> /var/adm/messages
/usr/sbin/dmesg - >> /var/adm/messages

Regards!

...JRF...

Re: dmesg log

Ashish Parashar — Fri, 06 Apr 2007 17:20:57 GMT

Hello Mark

It seems that any disk was removed from the system,as we have seen most of the time dmesg has error which is too old hence check syslog and try to find disk information,if disk is not in use remove device file also to avoid this error or

if disk in used then contact HP to restore disk.

Regards

Ashish