To unmount/deactivate VOBs

Unmounting/deactivating a VOB frees resources on your computer.

Unmount VOBs in a dynamic view when you no longer need to use them or if you need to reclaim system resources.

When you unmount a VOB, the view-private files in the VOB namespace are inaccessible until you reactivate it.

Windows tip: Unmounted VOBs do not remount when you log on.

You can perform this operation from the command line on the UNIX system and Linux and from either Rational® ClearCase® Explorer or Windows Explorer on the Windows system.

Unmount/deactivate VOBs from the command line on the UNIX system and Linux:
Use cleartool umount vob-tag. For example:
```
cleartool umount /rel4
```
This command unmounts the VOB that is registered with VOB tag /rel4. The VOB tag by which an individual VOB is referenced is the same as the full path to its mount point.
Unmount/deactivate VOBs from Rational ClearCase Explorer on Windows systems:
1. In the Shortcut pane, click Views and click the shortcut of the view containing the VOB.
2. In the Folder pane, right-click an entry and click Unmount VOB.
3. In the Unmount window, select a VOB or VOBs and click Unmount.
Unmount/deactivate VOBs from Windows Explorer:
1. Right-click the dynamic-views drive. Then click Unmount VOB.
2. In the Unmount window, select a VOB and click Unmount.