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Re: [Linux-cluster] NFS client failover





On Tue, Aug 25, 2009 at 8:19 AM, Mike Cardwell <linux-cluster 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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