Re: RHEL4 NFS

["Derek T. Yarnell" <derek umiacs umd edu>]

Stephen John Smoogen wrote:
> On 4/27/06, Derek T. Yarnell <derek umiacs umd edu> wrote:
>   
> > How stable do you view the NFS implementation is in RHEL4, at U1-U2 time
> > frame we had just a basic 2850 with disks in belly serving NFS that
> > would randomly just hang or crash.  The same chassis now runs RHEL3
> > serving the same data and content with no problems at all. (it was
> > re-installed numerous times to make sure we just didn't have a bad
> > kernel or sectors or whatever)
> >
> > I have a hard time justifying trying NFS again on RHEL4 after the
> > disaster we had before with it.  Anyone with any thoughts on this?
> >
> >     
>
>
> Hard to tell. havent seen this problem with hangs. It is probably
> dependant on a lot of matters: (read/write) what kind of NFS was being
> done (V4,v3,v2) and the backbone network architecture.
>
>   
This is a lot of reads ( remote nfs mounted /usr/local and /opt ) and 
very few writes.  It is all other RHEL3/RHEL4 nodes talking to it so v3 
by default.  The connections are LAN speeds >100MB/sec. (gig in some 
places to it, 100meg in others)


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Derek T. Yarnell
University of Maryland
Institute for Advanced Computer Studies
derek umiacs umd edu