Persistent LU-LU session support can be used to manage
the recovery or the planned takeover of an application program that
has enabled persistence.
When a failure occurs, the application program has several
ways to manage the recovery:
- Another instance of the failing application program can restart,
recover the connection to the active VTAM®,
and restore sessions.
- An alternate application program that has been started already
can recover the connection to the active VTAM and restore sessions.
- Using multinode persistence, another instance of the application
program can restart on the same node or a different node in the sysplex,
connect to the VTAM on that
node, and restore sessions.