ECZ.COMPRESSION.LEVEL = 1 | n
This parameter determines the level of compression. The valid value range is 1–9. The default is 1, which usually provides sufficient compression. The data goes through the compression code the number of times indicated by the value specified for the parameter.
CAUTION:
Compression consumes significant CPU resources.
To avoid degrading performance in your production environment by changing
the global, default settings for the extended compression parameters,
you should: (1) Review Using Extended Compression to
view test results that describe how changing the global, default values
affects performance, and (2) Review Testing the Effects of Changing
Values for Extended Compression Parameters in IBM® Sterling Connect:Direct® for z/OS® User
Guide for information on using the DGASACMP offline utility to
perform tests to determine whether changing the default values of
the extended compression parameters at the global level or by overriding
them at the Process level will significantly improve your system performance.
Modifiable through MODIFY INITPARMS command: YES