[Linux-cluster] NFS HA

[Equipe R&S Netplus]

> I had the same problem with nfs ha with rhcs, i solved using udp when
> i mounted the shares in client side.

Thank you, but I prefer a TCP NFS mount.

> On the original question, you need to specify the fsid for the
> file system.  Otherwise you get an fsid that's derived in part
> from the device numbers, so different device numbers on the
> failover leads to a different fsid.

For my test, I specify a fsid for all nfs mount, it doesn't seems to be the
root problem.
Example :
<<
/exports                *(rw,fsid=0,insecure,no_subtree_check)
/exports/test
192.168.0.0/24(rw,nohide,fsid=1,insecure,no_subtree_check,async)
>>

> Having "hard" mounting seems to allow failover to work for us.
> I'd rather not though as we have VPN laptop client machines that we'd
> rather didn't hang if the connection drops (maybe soft with a suitable
> timeo and retrans options would be good for these boxes).

What configuration do you use on "hard" mounting to allow failover NFS
service export ?

Thank you for your response.
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