Jim if you are using SATA drives (small cable instead of wide ribbon cable), then you have Raid capability already. You would need two drives identical in size to do this. What happens is when anything changes on one disk the other is automatically updated. This is called mirroring (I forget what raid level it is but can find out if you want to try it). If drive 0 fails drive 1 takes over and automatically becomes the working drive. You get a warning message that the drive has failed, but the computer keeps on working.
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Dale Douglass 2nd Generation Karaoke I am not a member of the MTU Staff.
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