Veritas Volume Manager 5.0 Administrator's Guide (September 2006)

257Administering volumes
Displaying volume information
Note: If you enable enclosure-based naming, and use the vxprint command to display
the structure of a volume, it shows enclosure-based disk device names (disk access names)
rather than c#t#d# names. See “Discovering the association between enclosure-based disk
names and OS-based disk names” on page 94 for information on how to obtain the true
device names.
The following section describes the meaning of the various volume states that may be
displayed.
Volume states
The following volume states may be displayed by VxVM commands such as vxprint:
ACTIVE volume state
The volume has been started (kernel state is currently ENABLED) or was in use (kernel
state was ENABLED) when the machine was rebooted. If the volume is currently
ENABLED, the state of its plexes at any moment is not certain (since the volume is in
use).
If the volume is currently DISABLED, this means that the plexes cannot be guaranteed to
be consistent, but are made consistent when the volume is started.
For a RAID-5 volume, if the volume is currently DISABLED, parity cannot be guaranteed
to be synchronized.
CLEAN volume state
The volume is not started (kernel state is DISABLED) and its plexes are synchronized.
For a RAID-5 volume, its plex stripes are consistent and its parity is good.
EMPTY volume state
The volume contents are not initialized. The kernel state is always DISABLED when the
volume is EMPTY.
INVALID volume state
The contents of an instant snapshot volume no longer represent a true point-in-time image
of the original volume.
NEEDSYNC volume state
The volume requires a resynchronization operation the next time it is started. For a RAID-
5 volume, a parity resynchronization operation is required.