[Linux-cluster] Configuring NFS on Red Hat Enterprise Linux 4AS / Cluster Suite / GFS 6.1
Kovacs, Corey J.
cjk at techma.com
Wed May 24 14:40:42 UTC 2006
Bob, in looking through your document, first I'd like to say "Thanks". Job
Second, I have a question about how RHCS (either version) handles the rmtab.
At a glance it appears that the cluster simply keeps a copy of the rmtab for
a given NFS instance sync'd wioth a copy on the exported filesystem itself.
For a single point of entry for NFS failover, it's a no-brainer and simply
However, for a multi server config like you describe where all servers have a
piece of the pie so to speak, how do does the cluster keep from killing the
rmtab file on the failover target.
That is if I have serverA and serverB, both running clusterred NFS services,
buys the farm, it seems that when the rmtab from serverA gets sync'd over to
serverB's rmtab gets squashed.
That's a very simplistic view of things but I've not taken the time to go
to ge the answer of "How, at a low level, is the rmtab handled"...
Thanks again for a good read.
From: linux-cluster-bounces at redhat.com
[mailto:linux-cluster-bounces at redhat.com] On Behalf Of Robert S Peterson
Sent: Tuesday, May 23, 2006 6:27 PM
To: linux clustering
Subject: Re: [Linux-cluster] Configuring NFS on Red Hat Enterprise Linux 4AS
/ Cluster Suite / GFS 6.1
On Tue, 2006-05-23 at 16:53 -0400, Sutton, Harry (MSE) wrote:
> This seems like a fairly straightforward thing to do, but I'm having a
> heck of a time accomplishing it.
Since I've got some experience in this matter, earlier in the year, I tried
to write an "NFS/GFS Cookbook" that was a nuts-and-bolts
("example-driven") approach to configuring NFS to work with Cluster Suite and
GFS exactly as you're describing.
So far, I haven't had much time to refine it and make it into an officially
sanctioned "Red Hat Document." It's just a draft. However, because I'm
seeing more questions about this lately, I've decided to make it available on
our cvs source directory here:
I hope this helps.
Just keep in mind: This is a draft. There may be mistakes.
If you let me know what they are, I can fix the doc though...
Hope this helps.
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