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Odd drive assignment for HBA

Neil Watson
Advisor

Odd drive assignment for HBA

Our SAN group performed some hardware upgrades over the weekend. Now I have a Redhat AS4-64Bit system that is assigning SAN drives in a most unusual way. Prior to this upgrade the Qlogic HBA card assigned the SAN drive to /dev/sda. Now, the kernel reports that /dev/sda is unavailable and assigns the SAN drive to /dev/sdb instead. The drive /dev/sdb does work normally. However, this server is a node for a cluster. The other member is suffering the same problem. I'd rather determine the cause and fix it rather than change all references in the configuration files to the new drive location. Does anyone have any suggestions?
2 REPLIES
Ivan Ferreira
Honored Contributor

Re: Odd drive assignment for HBA

Hello Neil, please see this link:

http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=1068223
Por que hacerlo dificil si es posible hacerlo facil? - Why do it the hard way, when you can do it the easy way?
Neil Watson
Advisor

Re: Odd drive assignment for HBA

I believe the dev labelling you mentioned has been superceded by udev:
http://kbase.redhat.com/faq/FAQ_43_8082.shtm