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Tivoli Storage Manager for Macintosh Backup-Archive Client Installation and User's Guide

Compression

System Administrator

The compression option compresses files before you send them to the server. Compressing your files reduces data storage for backup versions and archive copies of your files. It can, however, affect Tivoli Storage Manager throughput. A fast processor on a slow network connection benefits from compression, but a slow processor on a fast network connection does not.

If you set the compressalways option to yes, compression continues even if the file size increases. To stop compression if the file size grows, and resend the file uncompressed, set the compressalways option to No.

If you set the compression option to yes, you can control compression processing in the following ways:

This option controls compression only if your administrator specifies that your client node can compress files before sending them to the server.

Note:
The server can also define this option.

Preferences File

Place this option in the TSM System Preferences file within a server stanza.

Syntax

               .-No--.
>>-COMPRESSIon-+-----+-----------------------------------------><
               '-Yes-'
 
 

Parameters

No
Files are not compressed before they are sent to the server. This is the default. For options with a No parameter, acceptable alternatives are 0, false, and off.

Yes
Files are compressed before they are sent to the server. For options with a Yes parameter, acceptable alternatives are 1, true, and on.

Examples

TSM System Preferences:
compression yes


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