Need help to UnRaid a Mirrored set

Contributor II

So we have 1 machine that has a pair of 2gb drives set as RAID 1. That machine has no need for that right now & we can actually make use of the 2nd drive as storage. We want to separate them from the RAID, but leave the Data intact. One would be an old backup, & the other we want to install a fresh new OS.

Please help!