Hiya, I seems to have a hard disk problem and I can't seem to solve it. Can anyone advise? Basically, I have two identical disks, purchased at the same time for the purpose of creating a Stripe Raid. For a while (two months) they've worked without a glitch and recently I've encountered a huge problem.. After a reboot, the system wouldn't actually complete a full reboot, instead it would shut down. After switching on (again) the system it would try, only to shut down!! Later I created a new partition on a attached data drive, where I installed very small and light partition from there I can startup as normal but the Stripe drive wouldn't mount, until I load up Disk Utility. And then I could be greeted but a error message informating me that the drive has been temporary mounted. It suggests I should backup my data, format and reinstall I ofcourse tried this three times.. only to encounter the same identical problem. It seems there could be a disk error on one of the drives... thought it's not at the beginning Does anyone know are there any utilities I can use to find the fault? So i can return that drive to the store? Cause both drive seems to work flawlessly when working as single volumes.