Prerequisites
Before you start to set up the necessary file systems , carefully plan their distribution to available disks. Decide whether one or more volume groups (VGs) should be used.
Procedure
1. Enter the command smitty.
2. Select:
Physical & Logical Storage → Logical Volume Manager →
Volume Groups → Add a Volume Group
3. Enter a volume group name, for example, sapr3vg.
Press F4 to get a list of disks, which have not yet been assigned to a volume group.
4. With F7, mark the disks you want to be included in the volume group and press ENTER.
5. Press F10 to exit.
Repeat these steps for each volume group that has to be created.