HP StorageWorks Clustered File System 3.6.0 Windows Storage Server Edition Administration Guide (403103-005, January 2008)

Chapter 18: Advanced Monitor Topics 228
When a failure occurs on the Primary, the virtual host needs to fail over to
a backup. HP Clustered File System now looks for the best location for
the virtual host. Because the probe status on the first backup is “down,”
HP Clustered File System chooses 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.
Primary
First Bac k up
Second Backup
Vhost status
Probe status
Monitor activity
down
stopping
active
Vhost status
Probe status
Monitor activity
inactive
down
Vhost status
Probe status
Monitor activity
inactive
inactive
i5 i6 i9 i10
inactive
starting
active
inactive
up
up
active
inactive
active
i7 i8
Time