Mustgather: How to collect and review the HANDLEHEAPS macro output from system service tools

​Handle heap is a type of temporary storage that an application and the operating system use.  This document describes how to use the system service tools macro HANDLEHEAPS output to determine the jobs that own the largest handle heap and the current sizes.  This support can also be used to monitor for growth of the heaps.  If the heap fills, this will result in MCH6903 F/#hmalcmi with an activation group mark that is zero .  See the following reference for additional details on this type of heap:  Single Level Storage Heap Read More 

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