Hi,
Short explanation of NFS:
- NFS mounts from client end should be setup, as a general rule of thumb,
with the following considerations:
1) MOUNT now, add entry to /etc/filesystems or both? both
>>> This allows for cmdline mounting of the NFS filesystem but it
will not be automatically mounted at system reboot... change
/etc/filesystems to 'true' if automount is required...
2) MODE for this NFS file system read-only
>>> analness on my part... some NFS mounts require read-write...
3) Mount file system soft or hard soft
>>> NEVER mount an NFS filesystem 'hard'... if the NFS client EVER
looses contact with the NFS server, it will hang and it WILL take a
reboot to recover.
>>> By mounting 'soft', if the NFS clinet looses contact with the NFS
server, the mount can be dealt with, ie. unmounted, with a little work.
These steps have kept many AIX NFS client's from the required reboot to
recover, thx.
HTH, a little...
lt
On Mon, 1 Jul 2002, Rolf Meyer wrote:
> Hallo,
>
> I don't think, it's expected but true. We have the same situation on HP-UX
> clients 4.2.1 and TSM server 4.2.2.4 on Solaris. The only way to resolve
> this, is to reboot the client to clean up the nfs problem.
>
> I think, it's a failure in the nfs code.
>
> Greetings
>
> Rolf Meyer
> Info Business Systems GmbH
> Hamburg, Germany
>
> On Monday, 1. July 2002 12:11, you wrote:
> > All,
> >
> > Over the weekend I have seen that if an NFS filesystem is not working
> > properly then incremental backups will not work.
> >
> > This happened on 3 AIX 4.3.3 servers which lost some of their NFS mounts,
> > i.e. df command was hanging on them. If I tried to do incrementals but they
> > just sat there doing nothing. After rebooting one server, it forgot about
> > the NFS mounts, i.e. df command completed ok, then incrementals on it ran
> > fine.
> >
> > Is this the expected behaviour of TSM client?
> > (TSM client is 4.1.3 , TSM server is 4.1.5)
> >
> > Regards
> >
> > Chris
> >
> >
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