Diagnosing global resource serialization

Occasionally, situations will arise during the operation of a global resource serialization complex where workload slows down or comes to a complete halt. There are times when these situations are due to problems with the allocation of global resource serialization managed (ENQ) resources. This topic describes strategies to aid in the diagnosis and correction of these problems in a sysplex environment for either a global resource serialization ring complex or a global resource serialization star complex.