Introduction

Introduction

CA Compress is a mainframe software product that transparently compresses and expands the following type of data sets:

• VSAM KSDS and ESDS
• Physical Sequential
• Compressed data sets under CICS

CA Compress supports data sets under the control of the IBM Storage Management Subsystem (SMS). No special procedures are required to compress SMS-controlled data sets.

CA Compress offers the following advantages:

• A choice of compression routines
• Maximum compression (up to 80 percent)
• Custom compression routines for specific data sets to achieve increased compression.
• Performance enhancement feature that optimizes VSAM data sets to improve elapsed time for sequential and direct access operations.
• Significantly reduced DASD requirements
• Reduced backup and restore times
• Improved data security
• Easy-to-use and interactive ISPF interface
• Choice of maximum compression or minimum CPU overhead
• Transparency to application programs