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the dataset SYS1.DUMP at the time of failure as well as a console dump requested by the operator. A job may assign an arbitrary dsname to the ddname SYSMDUMP for an unformatted ABEND dump, or define that ddname as SYSOUT. The newer transaction dump is very similar to the older SVC dump. The Interactive Problem Control System (IPCS), added to OS/VS2 by Selectable Unit (SU) 57 and part of every subsequent MVS release, can be used to interactively analyze storage dumps on DASD.

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