Since I forgot to tell everyone when I dumped XFS, I don't think I
should forget to tell them that I think I found the cause of the
problems I had before, and it doesn't seem to have been XFS.

Recently I had the chance to take the server offline, coinciding with
electrical work on the building. One of the things I did was run a full
memory scan using MemTest86. The tests found faulty bits in one of the
modules I had installed, confirming my pre-hindsight that the OOPSes I
had gotten before -- a couple of times with XFS, and surprisingly once
with ext3 after a hundred days or so of uptime -- were caused by faulty
memory. I had never done full MemTest86 scans before, but had done an
extensive BIOS-based memory test. Obviously the latter was not enough.

With the faulty memory out, Gusi has been running 2.4.20-xfs with a
combination of XFS and ReiserFS as before, for 6 and a half days now
with no problems at all. Performance has gone up in general, and
noticably with Zope, which stores all of its data in a large file named
Data.fs.

Hopefully this setup will fare well, with downtime in sight only when we
get the new UPS units to replace the existing one, and perhaps if we add
more RAM. I'll let the list know how things go.

I still have not done extensive testing of the combination of Con
Kolivas's patchset and XFS. I don't have the time to do that now, so I'm
leaving my workstation which runs 2.4.20-ck3 on ext3. I might find time
to do testing over the summer, though, and I'll remember to share my
findings when I get to that.

:)

 --> Jijo

-- 
Federico Sevilla III  : http://jijo.free.net.ph      : When we speak of free
Network Administrator : The Leather Collection, Inc. : software we refer to
GnuPG Key ID          : 0x93B746BE                   : freedom, not price.
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