Karanbir Singh wrote: > Chris Mauritz wrote: >> I threw caution to the wind and updated my firmware (turns out the >> machines were using 9550SX controllers, not 9500) from 3.04 to 3.08 >> on a couple of production CentOS 4 and my test CentOS 5 machines. >> EXT3 performance seems to have improved noticeably on the RAID 0 >> devices I tested so it might be worth the update. > > Some numbers would be good... like bonnie++ results, and some feedback > as to what the config of your raid setup is like. Sorry, I'm not at the office anymore. The configuration of my test CentOS 5 machine looks like this: Dual Opteron 270 (4 cores total) 2gig RAM OS on a standalone 80gig SATA disk 3Ware 9550SX with 8 x 500gig Seagate 7200rpm SATA drives (firmware is now 3.0.8.00.016) The RAID device is configured as a large RAID0 device (it's mostly scratch uncompressed video and other temporary data) and is formatted as an EXT3 filesystem. According to bonnie++ (with a data set of 4GB), I was seeing writes around 325mb/sec and reads around 430mb/sec. Best,