Greetings!

I am adding 4 TB x 1 SATA HDD hot-plug hard disk to add more storage in our Dell PowerEdge T440 Server, that currently has RAID-1 (GB x 1 SATA SSD) .  The added new HDD is in the current state Ready (not Online).  

Question:  What is the best way to add this additional hard disk?  Can I add this to the existing  , will it be better to create a new Virtual Disk?  I am okay either way and I really appreciated any guidance.

Thanks a  lot for your help!