VERITAS Volume Manager 3.5 Administrator's Guide (September 2004)

Creating and Administering Plexes
Displaying Plex Information
Chapter 6198
SNAPDIS Plex State
This state indicates a snapshot plex that is fully attached. A plex in this
state can be turned into a snapshot volume with the vxplex snapshot
command. If the system fails before the attach completes, the plex is
dissociated from the volume. See the vxplex(1M) manual page for more
information.
SNAPDONE Plex State
The SNAPDONE plex state indicates that a snapshot plex is ready for a
snapshot to be taken using vxassist snapshot.
SNAPTMP Plex State
The SNAPTMP plex state is used during a vxassist snapstart operation
when a snapshot is being prepared on a volume.
STALE Plex State
If there is a possibility that a plex does not have the complete and
current volume contents, that plex is placed in the STALE state. Also, if
an I/O error occurs on a plex, the kernel stops using and updating the
contents of that plex, and the plex state is set to STALE.
A vxplex att operation recovers the contents of a STALE plex from an
ACTIVE plex. Atomic copy operations copy the contents of the volume to
the STALE plexes. The system administrator can force a plex to the
STALE state with a vxplex det operation.
TEMP Plex State
Setting a plex to the TEMP state eases some plex operations that cannot
occur in a truly atomic fashion. For example, attaching a plex to an
enabled volume requires copying volume contents to the plex before it
can be considered fully attached.
A utility sets the plex state to TEMP at the start of such an operation
and to an appropriate state at the end of the operation. If the system fails
for any reason, a TEMP plex state indicates that the operation is
incomplete. A later vxvol start dissociates plexes in the TEMP state.