VERITAS Volume Manager 4.1 Administrator's Guide

Understanding VERITAS Volume Manager
How VxVM Handles Storage Management
Chapter 116
NOTE VxVM uses the default naming conventions of vol## for volumes and
vol##-## for plexes in a volume. For ease of administration, you can
choose to select more meaningful names for the volumes that you create.
A volume may be created under the following constraints:
• Its name can contain up to 31 characters.
• It can consist of up to 32 plexes, each of which contains one or more
subdisks.
• It must have at least one associated plex that has a complete copy of
the data in the volume with at least one associated subdisk.
• All subdisks within a volume must belong to the same disk group.
See Figure 1-10, “Example of a Volume with One Plex,”.
Figure 1-10 Example of a Volume with One Plex
Volume vol01 has the following characteristics:
• It contains one plex named vol01-01.
• The plex contains one subdisk named disk01-01.
• The subdisk disk01-01 is allocated from VM disk disk01.
Subdisk
Plex
vol01-01
vol01
Volume
disk01-01