Copyright © TIBCO Software Inc. All Rights Reserved
Copyright © TIBCO Software Inc. All Rights Reserved


Chapter 9 System Redundancy : Overview

Overview
System redundancy eliminates the potential for a single point of failure in a message routing network by allowing the network administrator to define two P-7500 systems as a redundant pair. The TIBCO Messaging Appliance P-7500 offers active/active redundancy, whereby both systems can be active and simultaneously provide service to clients. This allows for load-sharing while both systems are functional. However, if one of the systems is taken out of service or fails, the other system automatically takes over responsibility for the clients typically served by the failed system. Both of these paired systems must be located on the same broadcast subnetwork.
The active/active redundancy feature is largely transparent to clients, RV services, and other P-7500 systems in the network. Only the two systems that are paired as mates require explicit configuration to take advantage of the feature.
Similarly, there is no configuration needed on client host computers to take advantage of the P-7500 redundancy facility. The only visible impact to clients during a redundancy failover is non-delivery of messages for a short period of time, as the clients are forced to reconnect.
Note: Only a one-to-one redundancy pairing is supported at this time. Many-to-1, 1-to-many, and many-to-many groupings are not supported.

Copyright © TIBCO Software Inc. All Rights Reserved
Copyright © TIBCO Software Inc. All Rights Reserved