Further Information: NFS problem

From: <Andrew.Raine_at_mrc-dunn.cam.ac.uk>
Date: Mon, 2 Jul 2001 10:46:43 +0100 (BST)

Dear Managers,

Further to my earlier posting about problems mounting a Tru64 disk on a
RedHat Linux workstation: Larye Parkins pointed out that Linux NFS
used to be limited to version 2, which might be expected to gave
problems on files/partitions larger than 2 GB.

However, the documentation with my user's RH7.1 machine claims that
NFSv3 is supported, and tests on a 2.6 GB text file show that his
machine can indeed read the whole file, while a 6.2 machine with an
older version of mount truncates it at 2 GB.

So I'm still stuck! Any further suggestions? One further symptom is
that once once the RedHat machine has triggered the lock-up, other
(e.g. IRIX, normally unaffected) machines also freeze when trying to
access the same partition.

Original question appended:

Many thanks,

Andrew

--
Dr. Andrew Raine, Head of IT, MRC Dunn Human Nutrition Unit, 
Wellcome Trust/MRC Building, Hills Road, Cambridge, CB2 2XY, UK
phone: +44 (0)1223 252830   fax: +44 (0)1223 252835
web: www.mrc-dunn.cam.ac.uk email: Andrew.Raine_at_mrc-dunn.cam.ac.uk
> Dear All,
> 
> I have a user, running their own Linux (7.1) workstation, who is having
> problems NFS-mounting from my ES40.  Other clients in the Unit, running
> IRIX or Tru64 have had no problems mounting from the same server, but
> they probably don't put such a heavy load on the system.
> 
> Server:
> 
> 4-processor ES40, Tru64 UNIX V5.1 (Rev. 732), also running TruCluster
> Server V5.1 (Rev. 389), but currently the only machine in the "cluster".
> 
> Exported disks are a single 180GB RAID5 volume in an HSZ80, attached by
> SCSI (not fibre)
> 
> Client:
> 
> 800MHz PIII running RedHat 7.1
> 
> Symptom on Client:
> 
> During intensive use, access to the NFS volume freezes.  In
> /var/log/messages I see things like -
> 
> Jun 28 08:32:48 bioinf kernel: nfs_notify_change: attr=1134896, fattr=1146880??
> Jun 28 08:37:59 bioinf kernel: nfs: server cluster.mrc-dunn.cam.ac.uk not responding, still trying
> 
> Symptom on server:
> 
> in /var/adm/messages I see things like -
> 
> Jun 27 19:31:50 beta vmunix: NFS server: stale file handle fs(2633,839795) file 433277 gen 32771
> Jun 27 19:31:50 beta vmunix:  RFS3_WRITE, client address = 193.60.81.170, errno 70
> 
> A reboot clears the problem, but it recurs pretty quickly once the user
> starts work again.  The same code works fine on files NFS mounted from
> other makes of server (as far as I can gather - we can't easily test
> this as we don't have a non-Tru64 server with enough disk space to test
> this).  I don't think the individual files are disappearing from under
> the user.
> 
> Does anyone have any clues as to what's going on, or where I can look
> next?  I'm new to Tru64 (I'm more familiar with IRIX).
> 
> I will, of course, summarize.
> 
> Many thanks,
> 
> Andrew

Received on Mon Jul 02 2001 - 09:42:22 NZST