VERITAS Volume Manager 3.5 User's Guide - VERITAS Enterprise Administrator (June 2002)

Chapter 6, Cluster Tasks 143
Creating a Shared Dynamic Disk Group
Creating a Shared Dynamic Disk Group
The New Dynamic Disk Group procedure creates an additional dynamic disk group.
Disks must be placed in dynamic disk groups before they can be used by VxVM. The
default disk group (rootdg) is usually created during VxVM installation and always
exists on a system running VxVM. You can create additional dynamic disk groups to
organize your disks into logical sets of disks.
When you place a disk under VxVM control, the disk is initialized. Initialization destroys
any existing data on the disk. (You can use encapsulation to preserve disk data.)
The steps for creating a new dynamic disk group are:
1. Right-click the Disk Groups folder, or right-click a disk.
2. Select Actions > New Dynamic Disk Group.
The New Dynamic Disk Group wizard screen appears.
3. Click Next to continue. A new screen appears.
4. Enter a name for the dynamic disk group and check the Create Cluster Group
checkbox.
5. If your system supports Activation Mode, then select Activation Mode and choose
the mode from the displayed submenu. Click OK.
6. Select which disks you want to include in the group. Make sure the disks you want to
include are in the right pane of the window, and click Next.
When you have provided all necessary information in the dialog box, click OK.
7. The next screen confirms the disks you have selected. Choose Yes to continue if you
are satisfied with the disk selection. If you are not satisfied, you can click the No
button to go back to the previous screen in order to modify your disk choices.
8. Normally, you would add all the disks you want in the group at this point. You can
always add more disks later with the Add Disk to Dynamic Disk Group command.