After the loss of the connection to the coupling facility structure, CA TPX does not rebuild the connection and has to be restarted.
A 'System Managed Rebuild' of the TPX structure will occur when all of the following are true:
- TPX must be on a currently supported release. (Support for system managed rebuild was added as of CA TPX 5.1.)
- The TPX CF structure must be defined with 'ALLOWAUTOALT(YES)'.
- "ITEM NAME(SMREBLD) NUMBER(1)" must be specified when the CFRM couple data set is formatted.
Without these prerequisites you will see messages like the following:
CF-EVT-EXIT: tpx_name CONNECTIVITY LOST, STRUCT xxxxxx
In this case, the TPX started tasks must be restarted in order to rebuild the connection to the structure.