topic Re: Instance Number exceeded in Operating System - HP-UX

Instance Number exceeded

James Mazzaro_1 — Tue, 23 Nov 2004 15:49:45 GMT

I have an issue on a large database server with a great deal of SAN disks. It seems that the HBA's were reconfigured several times and the disks were moved to different ports for performance reasons. Now we are in a situation where we cannot add any new disk instance numbers due to an error from the kernel indicating we have exceeded our fcpdev instance number of 255. Will ioinit -c in conjunction with removal of /etc/ioconfig and /stand/ioconfig solve this problem?

Will I need to import my volume groups?

Re: Instance Number exceeded

Steven E. Protter — Tue, 23 Nov 2004 16:00:19 GMT

Yes, you are headed in the right direction. You probably have a number of inactive instance numbers from the various changes that were made to your san over the years.

Here is a procedure to deal with that issue.

Do a make_tape_recovery backup before you begin, this procedure is destructive.

Any applications that use raw disk will have to be reconfigured.

There is also a good procedure on this in Keenen's book HP CSA.
Procedure is linked in this thead:
http://search.hp.com/redirect.html?url=http%3A//forums1.itrc.hp.com/service/forums/questionanswer.do%3FthreadId%3D475027&qt=Renumber+hardware+instance+ioinit&hit=2
http://docs.hp.com/cgi-bin/fsearch/framedisplay?top=/hpux/onlinedocs/B2355-60103/B2355-60103_top.html&con=/hpux/onlinedocs/B2355-60103/00/06/672-con.html&toc=/hpux/onlinedocs/B2355-60103/00/06/672-toc.html&searchterms=instance%7cnumber%7cioinit&queryid=20041123-135838

SEP

Re: Instance Number exceeded

Robert-Jan Goossens — Tue, 23 Nov 2004 16:04:47 GMT

Hi James,

Take a look at this doc.

Document description: Remapping ext_bus instances above 255
Document id: KBRC00013394

Europe
http://www5.itrc.hp.com/service/cki/docDisplay.do?docLocale=en_US&docId=200000074020850

US
http://www2.itrc.hp.com/service/cki/docDisplay.do?docLocale=en_US&docId=200000074020850

Regards,
Robert-Jan

Re: Instance Number exceeded

Sanjay_6 — Tue, 23 Nov 2004 16:09:28 GMT

Hi James,

Maybe this link will help,

http://www1.itrc.hp.com/service/cki/docDisplay.do?docLocale=en_US&docId=200000072951460

The itrc doc id is KBRC00009415.

Hope this helps.

Regds