OS auto reboot

[j773303]

Has anyone experience in OS auto reboot?
Our HP-UX 10.20 will auto reboot around 1 weeks. Is it memory failed or kernel paramers
exceed max number? Thanks for your comments.

[Kellogg Unix Team]

There can be many reasons -

Does it happen at any particular time of the week? If yes, then check root's crontab entries. Also check /etc/shutdownlog. If your system is crashing, check /var/adm/crash directory contents.

Also, check the recent thread "greatest blunders"! (sorry, couldn't resist it! :-) )

...Manjeet

[Bill Hassell]

Auto reboot means that the system has crashed. You need to get a crash dump and have it analyzed by HP. Or put on all the patches, assuming that the crash is not due a hardware failure. You can look at /var/tombstones/ts99 to see if a hardware error was detected.

[j773303]

How to check /var/adm/crash directory contents. They're binary files. Thanks.

[Kellogg Unix Team]

If you have HP support, send it to them and have them analyze. There are utilities available but that's the safer bet.

...Manjeet

[T G Manikandan]

You can examine the crash files located at /var/adm/crash directory using adb.

check the man pages of adb

The -m option has the details.