Should I have just installed the 900 GB while the server was on? ->does the server have hotswap?
So I've logged into OMSA and the drives are good, however the customer knows the age of the server and just bought 2 new drives to replace the existing GOOD drives.  Is there any specific process to replace the 2 GOOD drives with newer hard drives. it's the same make/model drive.  Thanks  
PowerEdge T410 need to install 2 drives