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Unit 7, Section 4: IMS TM scheduling, part 3: block loader and resident pool

This video describes the block loader (or block mover) and resident pools. The block loader is responsible for working with the storage manager (Variable Pool Storage Manager) to acquire contiguous…

From  5500031CVP 5500031CVP

Unit 7, Section 3: IMS TM scheduling, part 2: allocating resources and scheduling steps

This video describes how transactions are selected for processing and resource allocation, and how these processes can affect IMS TM performance.

From  5500031CVP 5500031CVP

Unit 4, Section 5: Checkpoint and restart

This video describes the program flow of checkpoint (CHKP) and restart (XRST). The CHKP and XRST DL/I service calls are frequently used together so that a failed batch or BMP or JBP program can be…

From  5500031CVP 5500031CVP

Unit 2, Section 8: Alternate output and PCBs

This video provides an example of an application that processes a single input message segment but creates three output messages, only one of which is the direct response to the originating LTERM. In…

From  5500031CVP 5500031CVP