It also depends on what you are doing with SQL (duh!, I know). Anyway, we use a 4x Proliant (HT to 8x) for a datawarehouse SQL server using DTS. Well...
There are a few that work on the iseries. The one we use is DataMirror TS. We do Real-Time replication w/minimal transform from an AS400 OLTP system to a SQL...
We had this same problem a while back and did a quick test (transferred a 4gig file) from server a then server b. There was a significant difference and...