Sun's UltraSPARC T1/2 servers are amazing

I completed an upgrade of our production web and app servers a couple of months ago. For webservers we moved from using Sun E250’s to T1000’s and for the application servers (Weblogic) we moved from V880s to T5220. The change in system load has far exceeded expectations!

Webservers

E250
T1000
CPU's
2x400MHz
6x1000MHz
Peak CPU
100%
2.4%
Peak Load Average
2.7
0.58

Application Servers

V880
T5220
CPU's
8x900MHz
8x1200MHz
Peak CPU
89%
7.9%
Peak Load Average
11.4
4.9

As an added bonus, the T5220’s, with 3 years maintenance, cost us less than a single years maintenance on theV880’s, and we freed up a lot of rack space.