Hello All I have very little knowledge when it comes to raid other than the type of configurations. Currently got a workstation in that had a problem with one of its 500GB HDDs in RAID 1. Now that drive was removed and found faulty, now is it possible to just add another identical HDD in its place and it'll all work dandy again? Or can I remove the RAID option altogether and have just 2 HDD without RAID? Rep for better support
You can boot from the existing drive & break the array if you don't want RAID on the HDD. or you can add another drive & let the array rebuild.
Ditto to what SASPRO said, because you've been running RAID1, you've mirrored the drives you should be able to break the array and use it as a normal drive. If you do however want to keep the redundancy (as it's saved you already!), add a new drive at least as big as the original and tell it to rebuild it in the raid software. it'll take hours (has to copy all the data to the new drive + any changes made in realtime) but will get you back to protected.