Quoting Joshua Baker-LePain <jlb17 at duke.edu>: > Needless to say it's not giving me that warm fuzzy feeling. The one > caveat is that not all the members of my array were the same size -- > one disk is 180GB while all the rest are 160GB. I'm going to test > overnight with identically sized RAID members, but I also wanted to > see if anyone else is using RAID6. I was testing RAID-5 with identical disk drives. Got the same thing. If I attempt to access it while it rebuilds, sooner or later I get errors. If I reboot while it rebuilds, it doesn't start it after the reboot (forgot the actuall error message). I needed to manually kick it again using mdadm to force-start it. If it was root file system, the machine would probably fail to boot completely. You might want to stick to your 3ware for now. BTW, any particular reason not to use hardware RAID on 3ware? I was testing software RAID-5 only because I had an old and slow Adaptec 2400 RAID controller. Software RAID-5 (on an older 1.8GHz CPU) across 4 drives connected to it in JBOD config was about 60% faster than hardware RAID-5. But as I said, because of the described problems, I decided to stick with hardware RAID. Adaptec 2400 is a slow card, but it allowed me to use the array while it was rebuilding (and I could safely reboot machine while it was rebuilding too). ---------------------------------------------------------------- This message was sent using IMP, the Internet Messaging Program.