Responding to several of your posts here. I understand your need for stability, but can't you set StorSave down and see what it does to your speed? Some of my 95MB/Sec was achieved with some of the suggested ext3 journal settings. Look back through my previous thread. Memory interleaving on my system (Supermicro X7DVL-E) is turned on automatically when you install two pairs of memory sticks. With 16GB on your system, I *assume* you have at least 4 sticks. Check the manual and see if there is a BIOS setting. Bowie Bailey wrote: > Kirk Bocek wrote: >> What's the motherboard or manufacturer and model? > > Knew I was forgetting something... :) > > > OS: CentOS-4.4 (fully patched) > Motherboard: Tyan Thunder K8HM > CPU: dual Opteron 280 > Memory: 16GB > Raid card: 3ware 9550SX-8LP > Raid volume: 4-disk Raid 5 with NCQ and Write Cache enabled >