Yes this is possible.  To make life easier you should clear the controller config before pull it out of the spare server because otherwise you have to deal with 2 more than one config. The RAID infos are stored in the controller as well as on the drives. The controller will recognize is there is a inknown raid config comming from the disks and will show this as a "foreign" config within the Dell Perc Config tool(its on the last tab). There you can import the RAID back from disk into the Controller. Regards,Joerg  
I have an older T420 with a single H710 Perc inside.  There is a RAID1 setup for  a system partition and a RAID5 setup for the data drives.  The controller seems to be completely dead.  My question is - if I take a H710 perc out of another old server and replace the dead one, is there a shot that I will still have my containers and virtual drives?  Or will I need to recreate the containers and then restore all the data from a backup?  Thanks for any help.
Can I Swap Poweredge T420 Perc H710 out and keep containers