Hi list,
I need to implement a High available NFS server. Since we already have OCFS2
here for RAC, and already have a virtual IP on the RAC server that failovers
automatically to the other node, it seems a natural choice to use it too for
our NFS needs. We are using OCFS2 1.2. (Upgrade to 1.4 is not on our current
plans)
We did a preliminary failover test, and the client that mounts the
filesystem (Actually a solaris box) doesnt like the failover. We expect some
errors and minor data loss and can tolerate them as a transient condition, but
the problem is that the mounted filesystem on the client becomes useless until
we umount and remount it again.
I suspect that NFS uses inode numbers on underlying filesystem to create
"handles" that it passes on to clients, but I am not sure on how this is done.
Anyone know if we can achieve a failover without needing to remount he nfs
share on the clients? Any special options are needed mounting the OCFS2
filesystem and also for exporting it as NFS, or on the client?
Best Regards,
Luis
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