Failure and recovery scenarios

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 public for TSA1, and IPFE-A2 is public 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.