Defining spare elements

Spare elements must exist in the current IMSGEN before DELTA PLUS can add new VTAM terminals, LTERMs, or subpools to an IMS system. Spare elements are not required for DBCTL regions, since these control blocks do not exist in DBCTL regions.

Spare elements are unused terminal, LTERM, and subpool control blocks which you define with Stage-1 macros and include in your IMSGEN.

The number of spare elements which you should include in your IMS system depends on the number of terminals, LTERMs, and subpools you expect to add between regularly-scheduled IMSGENs.

This section contains the following topics:

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