Should i store my OCR in OCFS or RAW

Hi
as general question
should i store my OCR in OCFS or RAW ?
how many OCR disks usually is the best , i have red we should multiplex and do 3 OCR , is the normal redundancy can give me 3 copy of OCR?
Thanks for any contribution

Same question was asked just yesterday in the RAC forum.
My recommendation is NOT using ocfs or any other cluster file system (cfs) for storing the OCR and voting disks. Reason: this requires that cfs s/w to successfully load before CRS at boot time, and should it fail, CRS (and all its dependent services) will fail.
So using a cfs introduces another software layer - and the more moving parts there are, the more complex it becomes and the better the chance for stuff to go wrong.
Oracle also recommended for 10g that raw be used instead of a cfs.
As Hans mentioned, the exception is ASM. With 11.2g ASM you can create a ASM-based cfs. ASM also loads before CRS, making the OCR and voting disks available for CRS. And ASM is anyway part of the cluster software stack and does not introduce an additional software layer. (disclaimer: have not tried it and this is what I understood from a discussion with Oracle)

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