Since the disks are unbound and not part of a RAID group, removing them will not be seen as a failure but a removal of disk. The slot on the enclsoure will read as Empty now instead of containing an unbound disk. As a general rule it is best to allow for a little bit of delay when removing multiple disks to allow the array to register the removal of the disks. I usually wait about 10 - 15 seconds between each removal. When inserting it is best to let the drive spin up and come online before inserting the next one. Also ensure that you have the filler modules in the empty slots to ensure proper airflow.
I have a DAE populated with unused but spinning FC drives and one DAE completely unpopulated.  Both DAEs are in a single CX4-480 array.  I want to take a number of the unused drives and move them to the unpopulated DAE.  When removing the drives will the array see this as drive failures causing hot spares to take over?  Is there a certain procedure that should be followed in moving the drives from one DAE to another?  Thanks, Tim
How to move unused drives