Hi Lewis,
On 2013-05-29 J. Lewis Muir wrote:
> The error looks like it's coming from the autosave module. I'm guessing
> maybe the RPC error suggests something wrong with communicating with the
> NFS server where the auto_settings.sav file is being written, but I
> don't know. The NFS server log doesn't show any problem. Once the
> problem starts, it doesn't seem to go away until I reboot the IOC.
Once it has started, does an 'ls' (or any other file operation) at the IOC
console work against the NFS disk?
> This problem has not always existed; it used to work fine. I initially
> thought it was a problem with autosave 5-0, since it seemed the problem
> showed up for the first time after I had upgraded to 5-0. But then I
> rolled back to 4-8, and the problem is still appearing. It's possible
> the NFS server changed somehow, or maybe a network adapter, cable,
> switch, etc. is failing, or none of these.
We have seen other problems ('ls' failing) against a Linux NFS server when
using NFSv3, but this problem goes away if we revert back to NFSv2. You can
select the NFS version if you're mounting the drive manually, just use the
nfs2Mount (or nfs3Mount) command instead of nfsMount. However autosave calls
nfsMount automatically in some cases which Tim Mooney can explain (probably
related to I/O failures) and that could undo the manual mount.
I would prefer to fix the problem inside the NFSv3 code, but that could take
some time so in the meanwhile I've produced some OS images that don't contain
the NFSv3 client. I can send you a copy of the mv5100 image if you want to
see if that helps.
- Andrew
--
It is difficult to get a man to understand something, when his salary
depends upon his not understanding it. -- Upton Sinclair
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