Thanks to those of you who sent a response. I already have the hardware in my computer room, so I don't have any flexibility to look at anything other than 979/200 or 400 (currently has 4 processors configured but I don't know that we need that much more power than what the 200 can offer). The biggie of course is how much Cognos will charge for the upgrade. 
The info that Craig provided was the direction I was looking for and the cpu bottleneck issue is something I will need to analyze. I've been a system admin for nearly 15 years and never had a good understanding how to interprete the performance chart when upgrading (shame on me).
Still looking for more input. Thanks again!
 Wes

-- Dave <[log in to unmask]> wrote:
And to add to what Craig wrote:

If you have Glance or SOS, take a good look at your bottlenecks. If you 
are heavily IO bound and you don't/can't add more FW SCSI channels, you 
are probably not going to see that much of an increase.

Having a faster processor waiting on IO only means it can process what 
it gets faster, when it gets it....


Craig Lalley wrote:
> Wesley,
>
> It means you will see and overall performance increase of about 300%.
>


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