From: "Saurabh Sehgal" <saurabh.r.s@gmail.com>
Subject: Nfs Failover
Date: Tue, 9 Oct 2007 15:40:22 -0400
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Hi all,

I am trying to do an nfs failover from one server to another in a 4 node
cluster . During this failover, I have a link from /var/lib/nfs directory to
a mount that resides on a shared disk. When i want to move the "resources"
from one node to the other ... this is how I go about initiating the move :

1) /etc/init.d/nfsserver stop
2) mount /var/lib/nfs on the failover node
3) move IP address to failover node
3) /etc/init.d/nfsserver start
4) /sbin/sm-notify -v <failover ip address>

Are these the correct steps ? What I end up getting is a Stale NFS File
handle on all client nodes, until I unmount and remount them again. For the
purpose of my application this mount/unmount of clients is undesirable .
What should I do ? Any help would be appreciated.

( I am using SLES 10 SP 1 as a platform :
uname -a
Linux mach1 2.6.16.46-0.12-smp #1 SMP Thu May 17 14:00:09 UTC 2007 x86_64
x86_64 x86_64 GNU/Linux  )


Thank you,

Saurabh

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Hi all, <br><br>I am trying to do an nfs failover from one server to another in a 4 node cluster . During this failover, I have a link from /var/lib/nfs directory to a mount that resides on a shared disk. When i want to move the &quot;resources&quot; from one node to the other ... this is how I go about initiating the move :
<br><br>1) /etc/init.d/nfsserver stop<br>2) mount /var/lib/nfs on the failover node<br>3) move IP address to failover node<br>3) /etc/init.d/nfsserver start<br>4) /sbin/sm-notify -v &lt;failover ip address&gt;<br><br>Are these the correct steps ? What I end up getting is a Stale NFS File handle on all client nodes, until I unmount and remount them again. For the purpose of my application this mount/unmount of clients is undesirable . What should I do ? Any help would be appreciated.
<br><br>( I am using SLES 10 SP 1 as a platform :<br>uname -a<br>Linux mach1 2.6.16.46-0.12-smp #1 SMP Thu May 17 14:00:09 UTC 2007 x86_64 x86_64 x86_64 GNU/Linux&nbsp; )<br><br><br>Thank you, <br><br>Saurabh<br>

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