topic Re: Linux LUN Auto Discovery in Operating System - Linux

Linux LUN Auto Discovery

Fred Kashtiban — Thu, 09 Feb 2006 13:25:01 GMT

Hi all,

Here is the env.

RH 3, and 4
XP1024

Is there any tool that I can run to auto discover new created LUNs without rebooting the box(s).

Thanks,

Re: Linux LUN Auto Discovery

Ivan Ferreira — Thu, 09 Feb 2006 13:50:25 GMT

You can try hp's fibreutils package (hp_rescan -a), or the rescan-scsi-bus.sh script available at http://www.garloff.de/kurt/linux/rescan-scsi-bus.sh

Re: Linux LUN Auto Discovery

Fred Kashtiban — Fri, 10 Feb 2006 00:49:34 GMT

Ivan, Thanks for your replay, but none of those cmds worked. any other suggestion.

tks.

Re: Linux LUN Auto Discovery

Andrew Cowan — Fri, 10 Feb 2006 02:55:52 GMT

Fred,

Its a long shot but does running "kudzu" or "fdisk -l" yield anything interesting?

Re: Linux LUN Auto Discovery

Fred Kashtiban — Fri, 10 Feb 2006 03:52:16 GMT

No, unfortunatly that did not not work.
Thanks anyways.

Re: Linux LUN Auto Discovery

Andrew Cowan — Fri, 10 Feb 2006 05:37:55 GMT

How about pvscan or vgscan?

Re: Linux LUN Auto Discovery

Andrew Cowan — Fri, 10 Feb 2006 05:44:03 GMT

lvmdiskscan is another possibility.

Did you have to install any software for driving your SAN?

Re: Linux LUN Auto Discovery

Andrew Cowan — Fri, 10 Feb 2006 05:59:45 GMT

Fred sorry to sspam you but this could be interesting:

http://publib.boulder.ibm.com/infocenter/dsichelp/ds8000ic/index.jsp?topic=/com.ibm.storage.ssic.help.doc/f2c_linuxlunconfig_2hsaga.html
http://www.vicengle.org/linux/linux_eva.php

Re: Linux LUN Auto Discovery

Alan_152 — Fri, 10 Feb 2006 11:01:58 GMT

for QLA HBAs, there is a tool called "hp_rescan". I also use a script that I downloaded from somewhere called "rescan-scsi-bus.sh"

Re: Linux LUN Auto Discovery

Craig Gilmore — Fri, 10 Feb 2006 12:11:37 GMT

Fred,

Tools depends on what type of HBA's are installed in the system. And the software level on the XP.

hp_rescan is usually effective if you are using the Qlogic cards.

Sometimes a partprobe will work.

Failing these, a restart may be your only option.

Good luck!