Alpha OSF Managers,
My AS 2100A running DU 4.0, is experiencing hangs of interactive
processes of a few seconds to a several minutes. This began
after I upgraded my computer. I made the following changes:
- Added Seagate hard disks
- Added 0.5 GB RAM (now: 1.25 GB)
- Added two more processors (for a total of three)
At first, I pulled the hard disks (which remain off). No change.
Then, checking patches, I found this:
PROBLEM: (7MPBA0854, QAR 46525, QAR 38394) (Patch ID: OSF400-055)
********
Multi-processor systems using the AdvFS file system, particularly
systems also using AdvFS for the root and usr file systems, may
experience intermittent freezing of interactive processes when the
system has a moderate to heavy I/O load. The freezing of
interactive processes may last from a few seconds to many minutes
but will eventually return to normal.
This problem may also occur on multiprocessor systems using the
NFS client or graphics sub-systems.
The description of the problem is about as on target as possible (we
are using AdvFS, although not for / and /usr and this is an NFS client,
as well as server). I installed the complete patch kit dated 6/10/98,
which included this patch. The problem persists.
Any ideas? I have called DEC for support (we have a support contract),
but they have not been able to help me.
Ralph Rodriguez rrodrigu_at_ssc.wisc.edu
UNIX System Administrator (608) 263-5204
Social Science Computer Cooperative Office hrs: Wed 1-2pm
University of Wisconsin, Madison
Received on Mon Jul 20 1998 - 17:19:39 NZST