Apple Xserve Intel (Late 2006) - Manual (Page 25)

Chapter 2 Installing or Replacing Components 25
2 Remove the blank drive module or the drive module that’s currently installed.
If there is a blank drive module in the bay, press the handle on the front to pop it out.
Then pull the module out and put it in a safe place.
Important: Save the blank drive module. Always keep a blank drive module in any
unused drive bay to maintain proper airflow through the Xserve.
Press the blank drive
module to pop out the handle.