I've got 2 x DL580G2's with Quad Xeon MP 2GHz, 8GB RAM, 4x72GB Ultra320 disks RAID1+0. Each server is running Win2k3 Ent with Sql 2k5 Ent. Both have close to 1M+ Lock Requests/sec with ~0 deadlocks and ~0 lockwaits. ... no lock bottleneck 1000+ Write/sec, Disk Queue Length = ~10 ... negligible disk bottleneck CPU = ~20% ... no CPU bottleneck With teamed network cards on GB switches the network is 1% utilized. ... no network bottleneck I've tuned everything I can think of but I can't seem to get any more out of these boxes. Am I missing something? Next step: install RAID controller and external drive enclosure to split filegroups over 3 channels (Data, Index, Log). Thoughts? Any suggestions on a ****-kicking dual channel RAID controller?