Is RAC really HA on Linux
- From: Stephen Evans <evans036@xxxxxxxxxxx>
- To: oracle-l@xxxxxxxxxxxxx
- Date: Mon, 13 Sep 2004 10:11:41 -0400
i hope i addressed this right - its my first post.
i am looking at RAC to provide an HA environment on Linux (most likely
Redhat AS3)
assuming we dont want to use raw file system, are my only options OCFS or
OCFS with ASM (my understanding is that even with ASM we still need OCFS
for the CRS part).
what about Redhat's GFS? - is that certified for RAC? i've tried to find
info on this at metalink but they refer to something called 'Oracle OSD
Clusterware' - whatever that is.
i'm also VERY concerned about true HA. Can we have one linux machine down
in the cluster so that we can upgrade all or any of the moving parts (ie
ASM; OCFS; CRS; RAC; Linux etc) - or do they all need to be at the same
version for the cluster to operate?
or for improved HA (ie less upgrades) are we safer going with raw?
i'm going to pose these same questions in a tar to oracle, but thought i'd
ask here first
thanks in advance,
steve
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