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03-14-2020 02:36 PM
03-14-2020 02:36 PM
CFS on an Oracle RAC
Hello all.
We have a two node Oracle RAC cluster.
Each node is running RHEL 6.10.
This Oracle RAC cluster has been in place for years.
It shares a single file system called /ora_backup.
This file system is mounted on a single node at a time.
There is no "autofs" set up as the original design was to have /ora_backup manually mounted after a DB health check in the event one of the nodes failed.
Don't ask me why it was configured that way.
I didn't built it - just supporting.
Anyway, we are now implementing a new backup client on these two servers (Dell Avamar).
Dell Avamar requires a shared directory that each node can access.
/ora_backup is only mounted on one node at a time, so it can't be used for this purpose.
We thought of using NFS but that would require setting up an NFS server and these two nodes as NFS clients.
We're now thinking a clustered file system (CFS) would be the best approach.
We already have a LUN presented to both nodes that would be shared but since I've never configured a CFS before, I'm not sure how to go about doing it.
I did a few Google searches but didn't really find anything appropriate for our circumstances - trying to configure a CFS on an existing two node Oracle RAC.
Any guidance provided would really be appreciated.
Thanks everyone.
-Tom
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03-19-2020 10:20 AM
03-19-2020 10:20 AM
Re: CFS on an Oracle RAC
Hello Tom ,
In RHEL 6.10 you can use gfs2 fs as CFS . For that you can configure redhat cluster on same node . and the gfs filesystem will be added as resource to the redhat cluster.
Note : both RAC cluster and REDHAT cluster can coexist on same nodes.
Few thing you need to consider before opting for GFS2 fs on cluster .
1: This fs should configured on LVM only.
2: You must configure fencing .
I work for HPE