I had to replace a failed HD in my Pegasus 2R8 unit. It was the same make and type of the other HD in the array.
However, it is not been added to the array, and come up on the desktop, as a separate disk. Have run all the checks and the HD is OK. The following are not turned ON, Media Patrol, Initialization,& Migration.
I have a lot of data on the array and can not afford to lose it, so any solution as to be that I do not lose this dater. I am running Mac OS 10.14.3.
What is the solution?