Dell PowerVault DR6000 - Manual (Page 50)

50 Setting up NetVault Backup Native Virtual Tape Library on the Dell™ DR4X00 Disk Backup
Appliance
10. Click on Yes to perform the Force Scan.
11. Media volumes will need to be loaded and unloaded into the drives in order to scan
the media. Right click on the media volume and select Load.
12. To unload the media volume, right click on the drive and select Unload.