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Re: [Linux-cluster] Bind mounts with HA ext3



Hi,

On Mon, 2009-09-28 at 16:55 -0500, Johnson, Eric wrote:
> I've got an RHEL 5.4 NFSv4 failover cluster that uses cluster controlled
> ext3 file systems on CLVM. In order to bring all the mount points into
> the NFS root, I have to use a bind mount.
> 
> Eg. Cluster mounts the file system at /fs1 then I have a script resource
> that creates the bind mount to /nfsroot/fs1
> 
> However, this seems to confuse the resource manager into thinking the
> file system is mounted in a location it is not configured to:
> 
> Sep 28 14:33:12 node1 clurgmgrd: [4150]: <warning> Device
> /dev/nfsvg/fs1lv is mounted on /nfsroot/fs1 instead of /fs1
> Sep 28 14:33:12 node1 clurgmgrd: [4150]: <warning> Device
> /dev/nfsvg/fs2lv is mounted on /nfsroot/fs2 instead of /fs2
> Sep 28 14:33:12 node1 clurgmgrd: [4150]: <warning> Device
> /dev/nfsvg/fs3lv is mounted on /nfsroot/fs3 instead of /fs3
> 
> I can't set the real mount point into the /nfsroot directory due to an
> application that expects them somewhere else on the same cluster.
> 
> This warning doesn't *seem* to impact actual operation of the cluster,
> so I've just suppressed the messages through an rsyslog rule, but is
> there a way to inform the cluster to ignore the bind mount? I'm using
> RHEL 5.4 32-bit with all the latest updates as of today, including:
> 
> kernel-2.6.18-164.el5
> cman-2.0.115-1.el5_4.2
> rgmanager-2.0.52-1.el5
> openais-0.80.6-8.el5
> 
> Eric
> 
I'd suggest filing a bugzilla report. It should be able to cope with
bind mounts,

Steve.

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