Home » Server Options » RAC & Failsafe » Suggestion to store clusterware files (oracle 11g RAC, OEL5)
Suggestion to store clusterware files [message #428688] Thu, 29 October 2009 08:29 Go to next message
hpaccess
Messages: 17
Registered: October 2005
Junior Member
We are installing 5 node 11g RAC on OEL5.

1. All Oracle (clusterare, asm and oracle) binaries are in local disks
2. database datafiles will be in ASM (in SAN)
3. Oracle log and tracefiles will be in NAS
4. Now i need help/suggestion regarding clusterware files (ocr and voting disk) - Can somebody guide me whats the best practive to place OCR and Voting disk (I only Know they need to be in some shared file sytems, so that all nodes can access). But would like to hear from some one who really implemented.

Please guide me.

Thanks,
Reddy
Re: Suggestion to store clusterware files [message #428691 is a reply to message #428688] Thu, 29 October 2009 08:41 Go to previous messageGo to next message
Mahesh Rajendran
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Registered: March 2002
Location: oracleDocoVille
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With 11gR2 you can put OCR/Voting inside ASM.
Until you reach there, good old raw partitions with external redundancy will do the job.
Re: Suggestion to store clusterware files [message #428696 is a reply to message #428691] Thu, 29 October 2009 08:55 Go to previous messageGo to next message
hpaccess
Messages: 17
Registered: October 2005
Junior Member
Thanks Mahesh for the reply.

OK - We are planning for 11gR1 and I like to know the options to place in RAW/Block devices. Heard, Linux vendors are recommending to use Block devices rather than RAW

Would you recommed to place the clusterware files on OCFS2 or someother CFS?
Re: Suggestion to store clusterware files [message #428733 is a reply to message #428696] Thu, 29 October 2009 12:25 Go to previous messageGo to next message
Mahesh Rajendran
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RAW is simple and it just works.
Historically, OCFS had a few issues (check metalink). The later versions are much more stable.
But in your case, it seems you are are just adding one more complexity by adding OCF and using it ***only*** for crs/voting disks.
Re: Suggestion to store clusterware files [message #428737 is a reply to message #428733] Thu, 29 October 2009 13:50 Go to previous messageGo to next message
hpaccess
Messages: 17
Registered: October 2005
Junior Member
So, you mean I can use just RAW devices with out any clustered file system and can be seen my all nodes?
Re: Suggestion to store clusterware files [message #428744 is a reply to message #428737] Thu, 29 October 2009 15:19 Go to previous message
Mahesh Rajendran
Messages: 10613
Registered: March 2002
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Yes. It should in be "shared area" so as to be accessed across all nodes.
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