HPE ProLiant DL320 Gen11 Maintenance And Service Manual page 118

12. Remove the optical drive from the drive cage.
Retain the screw. This screw will be used to secure the new optical drive spare.
13. Remove the optical drive bracket.
Retain the screws and bracket. These screws will be used to secure the bracket on the new optical drive spare.
HPE ProLiant DL320 Gen11 Server Maintenance and Service Guide 118