Initialization › Initialization Parameter Statement Descriptions › SPOOLCMP

SPOOLCMP

Syntax

SPOOLCMP=NO | YES | MBLOCKS

Description

This parameter specifies whether spool data compression must be used as default, if it is not specified in the ESFOPEN statement list. Valid values are:

• NO—(Default) No spool data compression is performed unless it is requested in the ESFOPEN statement list.
• YES—All spool files, with a record length less than 251 bytes are compressed in the spool data sets. If compression is activated, expect a reduction in DASD space usage and I/O activity, and an increase in CPU time.
• MBLOCKS—The first spool block of each spool file is not compressed, unless specified in the ESFOPEN statement list. All additional spool blocks are compressed, so that only spool files exceeding approximately 100 records are compressed.