11gR2 – raw and block devices – no longer supported
I was just reading up on the 11gR2 documentation for Grid Infrastructure Installation and finally we have a closure on the topic of RAW and BLOCK devices for OCR and VOTING disks:
With this release, OUI no longer supports installation of Oracle Clusterware files on block or raw devices. Install Oracle Clusterware files either on Automatic Storage Management diskgroups, or in a supported shared file system.
For new installations, OCR and voting disk files can be placed either on ASM, or on a cluster file system or NFS system. Installing Oracle Clusterware files on raw or block devices is no longer supported, unless an existing system is being upgraded.
REFERENCE: What’s New in Oracle Grid Infrastructure Installation and Configuration?
Perfect timing! I was just mulling over what to do with OCR/VOTING on my upcoming SAN-based RAC install — now it’s clear — use 11gR2 and store them on ASM.
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February 24th, 2010 at 4:49 pm
Dude,
You can’t put the OCR and vote/quorum devices in ASM…
Clusterware must be up before ASM, so you need to put them on OCFS2…
Cheers!
February 24th, 2010 at 8:44 pm
According to the 11gR2 documentation — “OCR and voting disk files can be placed either on ASM, or on a cluster file system or NFS system“
February 28th, 2010 at 10:13 pm
Douglas – your comment about ASM after Clusterware was true for 11gR1 and older.
With 11g Release 2, ASM is part of clusterware install. MVE’s statement is correct for 11gR2.