Location of Dependency

The location of the dependency determines the relative location of parent and child groups. In the following examples, parent and child groups can be failover or parallel, as described in Service Groups.

Local Dependency

In a local dependency, an instance of the parent group depends on an instance of the child group being online or offline on the same system. For example, in an online local dependency, a child group must be online on a system before the parent group can come online on the same system.

Global Dependency

In a global dependency an instance of the parent group depends on one or more instances of the child group being online on any system. In an online global dependency, the child group must be online somewhere in the cluster before the parent group can come online.

Remote Dependency

In a remote dependency an instance of parent group depends on one or more instances of the child group being online on any system other than the system on which the parent is online. For example, for the parent to come online on System A, the child must be online on any system in the cluster except System A.