Oracle on RHEL4 with ASM problem

[Tom Callahan]

Now it's my turn for a late response.....

What kind of Fibrechannel HBA's are you using, and what driver version?

Are you using multipathing or card based failover mechanisms?

Thanks,

Tom Callahan
TESSCO Technologies
Desk: (410)-229-1361
Cell: (410)-588-7605
Email: callahant at tessco.com

A real engineer only resorts to documentation when the keyboard dents on the forehead get too noticeable.



Mike Ault wrote:

>Anything in the OS level logs?
>
>Mike
>
>-----Original Message-----
>From: redhat-list-bounces at redhat.com [mailto:redhat-list-bounces at redhat.com]
>On Behalf Of Lunt, Nick
>Sent: Wednesday, April 26, 2006 10:19 AM
>To: General Red Hat Linux discussion list
>Subject: RE: Oracle on RHEL4 with ASM problem
>
>Hi Mike,
>
>  
>
>>-----Original Message-----
>>From: Mike Ault [mailto:mike at ault.cc]
>>Sent: 26 April 2006 15:03
>>To: 'General Red Hat Linux discussion list'
>>Subject: RE: Oracle on RHEL4 with ASM problem
>>
>>
>>I haven't seen the rest of the problem....maybe I can help.
>>
>>Mike Ault
>>Author: Oracle9i RAC, Oracle10g RAC and Grid from Rampant Press
>>    
>>
>
>any help greatly received ;)
>
>Heres our setup -
>
>Software -
>RHEL4 Update 2
>kernel 2.6.9-22 
>Oracle 10.1.0.4
>
>Hardware -
>HP Integrity RX4640 IA64 server
>ASM using disks on an EVA6000
>
>Problem -
>ASM randomly loses access to it's disks. It knows the disks are there but
>cannot write to them.
>We discovered that by stopping and restarting the init.cssd service in
>/etc/inittab ASM sorted itself out.
>Here is the line from /etc/inittab -
>
>h1:35:respawn:/etc/init.d/init.cssd run >/dev/null 2>&1 </dev/null
>
>This is the only way (without a reboot) that we have found to get ASM
>working again. The DBA's say there are no error messages from oracle and I
>can't find any on the system.
>
>When we get the problem cssd is still running (as it should respawn anyway)
>but a clean stop/start of it with 'init q' fixes the ASM problem
>(temporarily).
>
>The DBA's have raised a tar but not received a response in over a week. If
>we cant resolve the issue we will have to run oracle without ASM.
>
>Any help you can offer would be appreciated.
>
>Cheers,
>Nick .
>
>
>
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