Ipswitch WhatsUp Gold User Guide - Ipswitch Documentation Server

Ipswitch WhatsUp Gold User Guide
An example of the dependent system would be a passive, or standby server, in support of a
high-availability (HA) database cluster that has a down dependency on the active server. If
the database management system (DBMS) on the standby server fails to start on a reboot,
WhatsUp Gold will not show this failure until the active server fails and the standby server is
polled.
Reading dependencies
There are several ways to "read" dependencies to ensure they are applied as you want them.
1 Review the description of the dependency in the Device Properties dialog.
2 Read the dependency arrows in the Map View.
The map above displays several Up and Down dependencies. The green arrows indicate an
Up dependency, and the red arrows indicate a Down dependency.
Using the "behind" and "in front" terminology you can follow the graphical arrow in the map
above to read a dependency. For example, the server dependencies are read as, "only poll the
servers if the switch is up." The servers are behind the switch, and will only be polled if the
switch is also responding to polls. If the switch goes down, the server is assumed unavailable
and is no longer be polled. Since the server is unavailable, the server's state then changes to
Unknown.
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