红帽全球峰会14.2.2. Adding Unallocated Volumes to a Volume Group
Once initialized, a volume will be listed in the 'Unallocated Volumes' list. The figure below illustrates an unallocated partition (Partition 3). The respective buttons at the bottom of the window allow you to:
To add the volume to an existing volume group, click on the button.
- create a new volume group,
- add the unallocated volume to an existing volume group,
- remove the volume from LVM.
图 14.7. Unallocated Volumes
Clicking on the button will display a pop-up window listing the existing volume groups to which you can add the physical volume you are about to initialize. A volume group may span across one or more hard disks.
例 14.3. Add a physical volume to volume group
In this example only one volume group exists as illustrated below.
Once added to an existing volume group the new logical volume is automatically added to the unused space of the selected volume group. You can use the unused space to:
The figure below illustrates the logical view of 'VolGroup00' after adding the new volume group.
- create a new logical volume (click on the button),
- select one of the existing logical volumes and increase the extents (see 第 14.2.6 节 “Extending a Volume Group”),
- select an existing logical volume and remove it from the volume group by clicking on the button. You cannot select unused space to perform this operation.
图 14.8. Logical view of volume group
In the figure below, the uninitialized entities (partitions 3, 5, 6 and 7) were added to 'VolGroup00'.
图 14.9. Logical view of volume group
