Use the ISM_ERROR_BLOCKS parameter in CQMPARMS to control the ISM messaging behavior of your Query Monitor Subsystem.
- The number of ISM error blocks (n) that are allocated when Db2 Query Monitor initializes. If this value is too low, message CQM1219W might be issued. ISM error blocks are used to communicate a storage constraint event from somewhere in the product to the task that issues storage constraint messages. If you run out of ISM error blocks, it means that the storage constraint message will not be issued. However, an abend table entry will be created to document this event. It is important to realize that this is most likely a temporary situation and it does not impact overall performance.
- Integers in the range 16 - 8192