first off..if you are using the on bios raid turn it off. Secondly black drives form WD intentionally put themselves into deep cycle diags every so often. This makes them impossible to use in hardware and FRAID setups. I have 4 of them in raid 10 under mdraid and i had to disable bios raid for them to not go nuts. I still get the occasional error but usually the kernel is smart enough to let them take their breather they want to take. unfortunately the only drives that don't do this are their "enterprise" drives. this is the primary reason i have discontinued my use of all western digital products. On 2/28/2012 8:08 PM, Kahlil Hodgson wrote: > Hi Scott, > > On Tue, 2012-02-28 at 16:48 -0800, Scott Silva wrote: >> First thing... Are they green drives? Green drives power down randomly and can >> cause these types of errors... > These are 'Black' drives. > >> Also, maybe the 6GB sata isn't fully supported >> by linux and that board... Try the 3 GB channels > Yer, I was thinking that might be the case. I'll give that a go. > > Thanks, > > Kal > > > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos