Linux LUN Auto Discovery

[Fred Kashtiban]

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,

[Ivan Ferreira]

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

[Fred Kashtiban]

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

tks.

[Andrew Cowan]

Fred,

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

[Fred Kashtiban]

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

[Andrew Cowan]

How about pvscan or vgscan?

[Andrew Cowan]

lvmdiskscan is another possibility.

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

[Andrew Cowan]

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

[Alan_152]

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"

[Craig Gilmore]

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!