If connectivity is lost to the coupling facility whose structure is being altered, the alter process continues as long as there is one SP 5.2 system that has retained connectivity to that coupling facility and the structure remains allocated. If all SP 5.2 systems have lost connectivity, the structure is placed in an “alter in progress” state. Each connector to the structure is presented with the EEPLALTEREND event with the EEPLALTERENDLOSSCONN bit set to indicate that the alter did not complete normally.

When the first SP 5.2 system in the sysplex regains connectivity to the coupling facility, the structure alter that was in progress is stopped.