Maintaining Cluster Communication
iSTAR eX Installation and Configuration Guide 2–11
Maintaining Cluster Communication
Maintaining cluster communications involves establishing and maintaining
connections via the primary communication path or (optional) secondary
communication path. If the primary connection is lost, the secondary
communication path is used to re-establish cluster communications.
Single Master Configurations
If a configuration with a single master loses its connection with the host, as
shown in Figure 2.7:
Cluster members continue to communicate with the master.
The master continues to pass cluster members’ messages to the host.
The master uses the secondary path to communicate with the host.
Example:
If the secondary path is an alternate network connection between the
master and host, the master uses the alternate network to communicate
with the host.
Figure 2.7: Communication Failure with Single Master Configuration
Host
Master
Network Failure
Member
Member
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