ONABEND control statement

The ONABEND statement specifies the action to take if an unexpected IMS Queue Control Facility abend occurs in the IMS control region.

Syntax

Read syntax diagramSkip visual syntax diagramONABEND=(DUMPNODUMP)

Keywords

The following keywords are available:

DUMP
IMS Queue Control Facility issues an SDUMP of the IMS control region and any associated IMS Queue Control Facility address space if IMS Queue Control Facility resides on the same LPAR as the IMS on which the abend occurred. When the SDUMP is complete, IMS Queue Control Facility terminates processing in the IMS control region. IMS remains active and operational; however, no further IMS Queue Control Facility manipulation of IMS message queues can be done by that IMS until the IMS Queue Control Facility extensions are restarted.
NODUMP
IMS Queue Control Facility does not issue an SDUMP. IMS Queue Control Facility terminates processing in the IMS control region, and IMS subsystem remains active and operational. No further IMS Queue Control Facility manipulation of IMS message queues can be done by that IMS until the IMS Queue Control Facility extensions are restarted.

This NODUMP option provides for the minimum disruption of IMS with no interference from SDUMP processing. However, NODUMP might result in no diagnostics being available to solve the abend.