Snap dumps

Snap dumps are always sent to the data set defined by the CSQSNAP DD statement. They can be issued by the adapters or the channel initiator.

• Snap dumps are issued by the batch, CICS, IMS, or RRS adapter when an unexpected error is returned by the queue manager for an MQI call. A full dump is produced containing information about the program that caused the problem.

  For a snap dump to be produced, the CSQSNAP DD statement must be in the batch application JCL, CICS JCL, or IMS dependent region JCL.

• Snap dumps are issued by the channel initiator in specific error conditions instead of a system dump. The dump contains information relating to the error. Message CSQX053E is also issued at the same time.

  To produce a snap dump, the CSQSNAP DD statement must be in the channel initiator started-task procedure.