An IPFE that has a mate and at least two Target Set Addresses can handle different failure and recovery scenarios.
Note: The following failover scenarios describe what happens with the IPFE-A1 and IPFE-A2 pair. A failover involving the IPFE-B1 and IPFE-B2 pair is handled exactly the same way.
This section discusses how the following IPFE setup can gracefully handle the failure and recovery of various components in the system:
- Two IPFEs, IPFE-A1 and IPFE-A2, each responsible for one Target Set Address. IPFE-A1 is primary for TSA1, and IPFE-A2 is primary for TSA2.
- Two Target Sets, each with three application servers and the Target Set Addresses TSA1 and TSA2.
- TSA1 has application servers Server1, Server2, and Server3
- TSA2 has application servers Server4, Server5, and Server6
- Two clients, each configured with TSA1 and TSA2.
These failure and recovery scenarios apply to a single component outage.