COMPRESS
The COMPRESS option allows you to override the COMPRESS installation option that tells
BMC AMI Copy
if compression of disk image copies is enabled. This option provides synergy with the BMC
PACLOG
utility, which uses the BMC Extended Compression Architecture (XCA) technology. The compressed disk image copies can be used by the IBM Db2 RECOVER and DSN1COPY utilities and the
BMC AMI Recover
and UNLOAD PLUS utilities.
This option can also be set with the OPTIONS command (see COMPRESS).
To enable compression, the PACLOG load library must be in the BMC AMI Copy STEPLIB or JOBLIB. For more details, see the PACLOG for DB2 documentation .
If you do not specify COMPRESS in the COPY command, BMC AMI Copy uses the value of the COMPRESS installation option as the default.
Values of COMPRESS
Value | Description |
|---|---|
COMPRESS YES | Specifying COMPRESS YES tells BMC AMI Copy to compress disk image copies. COMPRESS YES can be used in conjunction with the SQUEEZE YES of the COPY and COPY IMAGECOPY commands for additional savings. If COMPRESS YES is specified but the compression libraries are not available or there is a problem registering the data set to XCA, a warning is issued and the copy continues without compression. If COMPRESS YES is specified and the data set being copied is on tape, an informational message is issued to indicate that compression will not be invoked. |
COMPRESS NO | Specifying COMPRESS NO tells BMC AMI Copy not to use compression for the disk image copies. Also, see SQUEEZE for further compression information. |