SQL Server 2000 (we don't have a lot of money and the licence was
cheaper... but we are planning to upgrade sometime soon)

Anyway.. I just noticed the drive configuration on the server is C:
and D: on one RAID array, and E: and F: on the second.  Which means my
data files and OS files are all on the same set of physical disks,
probably in a mirror (I've asked the person who ordered the server to
get me the physical configuration, I'm not entirely sure how to find
that info)

So I'm using perfmon to monitor % disk read and write on the two
physical sets of disks.

WHENEVER there is a spike, I see the disk WRITE on the C/D drive jump
to 100% while the disk read jumps up and down between 100% and 0%...
during this time, I see disk activity on the E/F drive

C:  OS and page file
D:  SQL Server Data
E:  SQL Server transaction logs
F:  SQL Server backups

It can't be a coincidence that when these spikes occur are also the
ONLY time I see disk write activity to the E/F drives, where the
transaction logs are.

ALSO... I'm seeing errors like this during the slow periods:

Error Executing Database Query. [Macromedia][SQLServer JDBC
Driver][SQLServer]Transaction (Process ID 110) was deadlocked on lock
resources with another process and has been chosen as the deadlock
victim. Rerun the transaction.

This kind of error message has only happened 8 times today... but
maybe it's related.  I don't have a CLUE how to deal with SQL Server
deadlocks!


-- 
Rick Root
New Brian Vander Ark Album, songs in the music player and cool behind
the scenes video at www.myspace.com/brianvanderark

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