Previous Topic: CHPID FailoverNext Topic: How Virtual Volume Compression Works


Virtual Volume Compression

Virtual Volume compression lets you compress data that is written to Virtual Volumes. Compressed volumes occupy less disk space. Compressed data requires fewer I/Os to read or write at the expense of more CPU overhead to perform the actual data compression.

Virtual Volume Compression is activated and controlled through attributes that are defined in the Dynamic Options Section of the OSPARMS member of Parmlib. The following Parmlib attributes control how and when compression is activated: