Hey guys,

I'm looking at moving away from our old AX4-5i to a new SAN, and Compellent has been at the top of the list.  I recently came across someone selling a Series 20 for what appears to me to be a very good price.  I really don't know enough about this stuff though to say whether I'd be wasting money going with a Series 20, or if it would be good enough for what our business needs.  I've seen some comparisons between the hardware on the 20/30/40, and understand that they are single/dual/quad core and 2.5g/3.5g/4g on the data cache.  Does all that really matter though, or is the bottleneck still in the drives primarily?  Are the upgrades mainly in the software?  Any advice on this would be greatly appreciated.   Kind of hard trying to find an unbiased opinion on this in a sea of vendor sourced information.