NFS problems between RHEL4 U3 and RHEL4U6

[jerry.feldman at algorithmics.com]

My primary NFS server is running RHEL4 Update3 (unpatched). I just added
a few servers running U6. (The specific release I run is specified by
our IT department). The problem I am seeing is:
When I save an 8MB file from our application on a client RHEL4U3 machine
the save time is about 1 second. When I perform the same test on a
client running RHEL4U6, the save takes about 2 minutes. 

As a test, I exported a directory from one of the RHELU6 systems, and
the save times were good on both an update 3 and update 6 client. So,
one solution is to upgrade U3 to U6. (I would probably do a fresh
install). But, that requires some downtime, and the server room is not
accessible after hours. (All disks are removable so I probably could
move the volume group to one of the existing servers to minimize
downtime).

I would like to know if there is some existing NFS issue between U3 and
U6. If I could provide a temporary fix, that would be a better interim
solution until the additional drives I ordered arrive. 

--
Jerry Feldman <Jerry.Feldman at algorithmics.com>
Algorithmics (US), Inc
Suite 2-400
275 Grove St.
Newton, MA 02466
617-663-5220
617-663-5391 (fax) 



 
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