Outlook2003 pst file access

A

Andrew

Since September 8th, our Corporate File Server's CPU runs around
98-100% during business hours then around 5pm-6pm this gradually drops
back down to 0-10%.

On this day, we upgraded our users from Outlook2000 to Outlook2003
(running Exchange2003 on another Server),
This File Server in question holds each of the 400 users PST files in
their respective Home Directories, some are between 500-900Meg each,
most are less than 20Meg.
I beleive this could be the problem but any suggestions are welcome.

When running PerfMon, the "% Priviliged Time" runs at the same
percentage as the "Processor time". "System" is the process that is
taking all the resources.
We have been running PST files from this File Server for a couple of
years before the Oulook2003 upgrade, Maybe Outlook2003 handles these
in a different way?
I know Microsoft do not recommend PST files for on-line use across a
network This is the way we have been using pst files prior to
Outlook2003 and did not experience these issues.
The Servers stats are: COMPAQ/HP ML370 2x 2.8G XEON 2 Gig RAM,
Attached Storage 9x146Gig Drives
 

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