RE: 10gR2 RAC on AIX shared disk device names issue

[ I am able to access these disks rac_dsk1-3 using dd command. ]  

If there is some left over junk in the header of the devices ASM will not want to use them. Try formatting the header using the dd command. It should be something like this:  

    dd if=/dev/zero of=/dev/sda1 bs=8192 count=25600  

Of course this will vary depending on your configuration.

From: oracle-l-bounce_at_freelists.org [mailto:oracle-l-bounce_at_freelists.org] On Behalf Of Venkata Giri PG
Sent: Tuesday, July 24, 2007 10:37 AM
To: oracle-l_at_freelists.org
Subject: 10gR2 RAC on AIX shared disk device names issue

Hi,

I am in the process of setting up 2node RAC with the following components:

Oracle 10g R2 RAC
Oracle Clusterware
AIX 5L 5.3
HP Storage
ASM Following are shared disks for storage:

on Node1:

/dev/rhdisk10 -- for voting disk
/dev/rhdisk11 -- for OCR
/dev/rhdisk12 -- for ASM
/dev/rhdisk13 -- for ASM
/dev/rhdisk14 -- for ASM

on Node2:

/dev/rhdisk10 -- for voting disk
/dev/rhdisk11 -- for OCR
/dev/rhdisk15 -- for ASM
/dev/rhdisk16 -- for ASM
/dev/rhdisk18 -- for ASM

Shared disk names are not same accross my nodes.

we have created new common device name file for non-common disks dev/rhdisk12-14 & /dev/rhdisk15-18.

new device names are : rac_dsk1, rac_dsk2, rac_dsk3

I am able to access these disks rac_dsk1-3 using dd command.

But Cluster verfication utility fails with error ERROR: /dev/rac_dsk1 Storage operation failed.

I have used the following cluvfy command.

./cluvfy comp ssa -n node1, node2 -s /dev/rac_dsk1,/dev/rac_dsk2

Are there any known issues with cluvfy?

Is it possible to use shared storage with different device names during ASM instance / Disk group creations?

Thanks
Venkata Giri

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