Raritan Computer DOMINION KSX II - Manual (Page 113)

Chapter 5: Virtual Media
103
Disconnecting Virtual Media
To disconnect the virtual media drives:

For local drives, choose Virtual Media > Disconnect Drive.

For CD-ROM, DVD-ROM, and ISO images, choose Virtual Media >
Disconnect CD-ROM/ISO Image.
Note: In addition to disconnecting the virtual media using the Disconnect
command, simply closing the KVM connection closes the virtual media
as well.