Veritas Volume Manager 4.1 Administrator's Guide (HP-UX 11i v3, February 2007)

Chapter 1, Understanding VERITAS Volume Manager
How VxVM Handles Storage Management
13
A VM disk can contain multiple subdisks, but subdisks cannot overlap or share the same
portions of a VM disk. “Example of Three Subdisks Assigned to One VM Disk” on
page 13 shows a VM disk with three subdisks. (The VM disk is assigned to one physical
disk.)
Example of Three Subdisks Assigned to One VM Disk
Any VM disk space that is not part of a subdisk is free space. You can use free space to
create new subdisks.
VxVM release 3.0 or higher supports the concept of layered volumes in which subdisks
can contain volumes. For more information, see “Layered Volumes” on page 34.
VM Disk with Three Subdisks
disk01
disk01-01
disk01-02
disk01-03
Subdisks
disk01-01 disk01-02 disk01-03