The VIPA takeover feature associates an individual VIPA with a TCP/IP stack, allowing the VIPA to be moved from a failing z/OS image to a backup image. This is functionally similar to replacing a computer but keeping the same IP address. Using this feature, all applications that are moved to the backup image can be reached by the same IP address that they were associated with on the failed image.

If this method is used for IOAGATE recovery, IOAGATE should be restarted on the backup image which has taken over the VIPA address.

IOAGATE transparently supports VIPA takeover, and therefore no special definitions are required in IOAGATE to implement it.