Description

The DATA_COMPRESSION option specifies whether or not data in standard I/O file transmissions across the network should be compressed.

Optionally, it also can specify the compression method to use.

Usage

Method	Syntax	IBM i	UNIX	Windows	z/OS
Command Line, Short Form	-k option[,method]
Command Line, Long Form	-compress option[,method]
Environment Variable	UDMCOMPRESS=option[,method]
Configuration File Keyword	compress option[,method]
STRUDM Parameter	COMPRESS(*option) and CMPRSMTH(*method)

option is either of the following values:

yes
Data compression is required. All data in standard I/O file transmissions is compressed regardless of the UDM Server DATA_COMPRESSION option value.
no
Data compression is not required. However, data compression still can be requested via the UDM Server DATA_COMPRESSION option.
no,force
Data compression is not used, even if the UDM Server DATA_COMPRESSION option is set to yes.

Default is no.

method is either of the following values:

zlib
Data is compressed using ZLIB compression algorithm. This method usually results in a very high compression rate, but tends to be somewhat CPU-intensive. It is recommended in environments where controlling a process's CPU usage is not necessarily a priority.
hasp
Data is compressed using the HASP compression algorithm. This method is less CPU-intensive than the ZLIB method. It is recommended in environments where controlling CPU usage is a priority. With HASP, the compression rate, while still very good, tends to be a little less than what is possible with the ZLIB.

Default is zlib.