Veritas Volume Manager 5.0.1 Troubleshooting Guide, HP-UX 11i v3, First Edition, November 2009

Figure 1-1

Main plex state cycle

PS: CLEAN

PKS: DISABLED

PS: ACTIVE

PKS: ENABLED

Start up

(vxvol start)

Shut down

(vxvol stop)

PS = plex state

PKS = plex kernel state

For more information about plex states, see the Veritas Volume Manager

Administrator’s Guide.

At system startup, volumes are started automatically and the vxvol start task

makes all CLEAN plexes ACTIVE. At shutdown, the vxvol stop task marks all

ACTIVE plexes CLEAN. If all plexes are initially CLEAN at startup, this indicates

that a controlled shutdown occurred and optimizes the time taken to start up the

volumes.

Figure 1-2 shows additional transitions that are possible between plex states as

a result of hardware problems, abnormal system shutdown, and intervention by

the system administrator.

Recovering from hardware failure

The plex state cycle