Write back vs.Write through? Common wisdom is WB always faster? Not always so! WT is usually faster for heavy loads If you cannot configure an optimal disk configuration: select WT RAID-5may be best with WB Only when performing sequential loads WB is usually faster for light loads If server is properly configured: Select WB
I currently own the following drives so I decided I would put a few arguments to rest and lay down some facts with proof. 1x WesternDigital VelociRaptor 300GB 1x WesternDigital Black Edition 2 TeraByte 2x WesternDigital Black Edition 1 TeraByte Test Box Processor: AMD Phenom II 965 BE Motherboard: MSI 870A-G54 Memory: Adata DDR3 Raid Controller: Onboard AMD SB850 Taking a random guess I could tell you before any testing that the WD Black Raid 0 configuration will be fastest Burst and Sustained speed unless the controller is holding the drives back. I was amazed at the jump in speed