HP Visualize B1000 Owner's Manual page 152

Changing Your Computer Hardware Configuration
Hard Disk Drives
7. Click on Remove in the Actions menu. In the window that next
appears, click on the Yes button. This will unmount the file system
located on the hard disk drive you are removing from the system unit.
You will need to wait for a short time before the new file system is
unmounted. The file system is successfully unmounted when you see
Unused in the Use column of the Add Disk without LVM window.
152 Chapter 5