I have a Unix server running with 2 disks with the same capacity, but 1 is being used only for backups storage.
I would like to temporarily use that secondary disk as a mirror of the first, and move the backups to the main disk (which will obviously then be mirrored to the secondary disk too).
Is this a good idea? If yes, I am just not sure on how to install the RAID 1 (as software) to start using the secondary disk as a mirror of the first. Could you please help me here?