SYSTEMACTION keyword


The SYSTEMACTION keyword enables you to indicate the action that should occur the next time the data set is opened or loaded.

 

Parameter

Description

Components

Non-VSAM component

VSAM component

REGISET Entries

Data set entry (discrete or generic)

Usage

Optional

Functions

ADD - add an entry

CHANGE - change an entry

Alias

SA

Syntax

SYSTEMACTION (value)

SA(value)

Values

Use one of the following values:

COMPRESS - Begin compressing the data set the next time the data set is opened or loaded. When you also select the Generate Discrete Entries option, a discrete entry is added to the REGISET the next time the data set is recreated or completely rewritten.

CHECK - Use CHECK with the VSAM component only. Examine all data read from the data set. If compressed data is encountered, expand it. Report whether compressed data existed in the data set

SIMULATE - Intercept and compress records in a data set for statistical purposes only. This option enables you to test the effectiveness of a compression technique before applying it to a data set.

EXCLUDE - Exclude from compression processing a data set that might otherwise be compressed as part of a generic option specification.

NONE - Use NONE to stop compression processing for a single component. Deleting the entry deletes the VSAM component and non-VSAM component options

Default

SYSTEMACTION (COMPRESS)



 

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