On May 20, HP regained the TPC-C performance crown for non-clustered (you know, "Big Iron") , using Microsoft Windows server 2003 Datacenter Edition and SqlServer 2000 Enterprise Edition 64-bit. It almost also nailed the clustered (you know, "Little Iron") record, also HP/Windows/SqlServer, result which was submitted September 2001. A stunning 707,102 transactions per minute were clocked on this beast with 64 Itanium 2 processors.
And who was that little fellow who said Microsoft's products do not scale well? :)