popefelix

So I recently purchased a pair of 1.5 TB hard drives to serve as storage for my backup server. Shortly thereafter, the 1 TB hard drive in my personal machine started warning of imminent failure. I replaced it with one of the 1.5 TB drives and sent the failing drive off for warranty replacement. I got the drive back recently. Should I sell the 1 TB drive and buy another 1.5, or should I replace the 1.5 I'm currently using with the 1 TB drive and put the 1.5 back into the backup server? Note that the 1.5 TB drives in the backup server are configured as RAID 0 (mirrored).