4.1.0 HP PolyServe Matrix Server administration guide (T5392-96073, October 2010)

host is configured on the Primary. At i3, the monitor start script begins on the Primary
and probing begins on the backups. At i4, probing begins on the Primary.
When a failure occurs on the Primary, the virtual host needs to fail over to a backup.
Matrix Server now looks for the best location for the virtual host. Because the probe
status on the first backup is “down,” Matrix Server selects the second backup, where
the probe status is “up.”
At i5 in the following example, the probe fails on the Primary. At i6, the virtual host
is deconfigured on the Primary. At i7, the monitor stop script begins on the Primary.
At i8, the virtual host is configured on the second backup. At i9, the monitor start
script begins on the second backup. At i10, probing begins on the second backup.
Advanced monitor topics234