[Linux-cluster] NFS client failover

[crypto grid]

On Tue, Aug 25, 2009 at 8:19 AM, Mike Cardwell <
linux-cluster at lists.grepular.com> wrote:

> Hi,
>
> I have a small cluster which shares a filesystem via GFS on a SAN, with
> iSCSI. There are a couple of hosts external to this cluster which I would
> like to have access to the GFS filesystem via NFS. I have exported the same
> mountpoint on each of the hosts that have the GFS mount.
>
> I can connect via NFS to one of these cluster hosts, but when it goes down,
> I have to unmount it, and then remount against another host. I suspect I
> could do something with a floating IP? but I was wondering if it would be
> possible to do this with client side logic so that the nfs mount
> automatically moves to a different working host if one stops responding?


I don't see why you want to resolve this from the client side. You must
configure an ip address resource.
Take a look at this document:
http://www.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/5/pdf/Configuration_Example_-_NFS_Over_GFS.pdf
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