I realize that the reader doesn't have all of the info for my situation, and 
that there are ways to verify true bottlenecks in a databaes system with Perf 
Mon and other tools that I will address when I can. That said, I'm hoping that 
others can share their experiences if they've been down this path. Here is my 
situation:

I have one DB server that will host my main site DB and the CFSessions DB that 
is created by the CF Servers to use database-based client variables. I would 
like to maximize performance of the database but I am unsure as to the best 
starting point for allocating hard drives to raid volumes. Client variables get 
moderate usage, although the data contained within is not mission critical. The 
MainDB gets relatively heavy usage, mostly reads. The system looks like this:

SQL Server 2000
10 drive raid
system memory maxed out
Fast CPUs

The database files look like this:

Main DB
Main DB Translog
CF Sessions DB
CF Sessions DB Tlog

What RAID config would you use for the databases?

Main DB = 4+1 parity RAID 5
Main DB tlog = 1+1 mirrored RAID 1
CF Sessions DB = 1
CF Sessions DB tlog = 1
Hot spare = 1

or splitting the drives based on sequential vs non-sequential reads:

Main DB and CFSessions DB = 6+1 parity RAID 5
Main DB tlog CF Sessions DB tlog = 1+1 mirrored RAID 1
Hot spare = 1

or something else??

How important is (battery backed) write cache for the raid? The main database 
doesn't write very much, but the CFSessions DB should be writing every 
pageload. Would you use this?

Thanks very much in advance,
Matt

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