Using Compression for BRMS Save Files

The type of data compression can be specified for save files using the following commands:

To override the save file data compression:

where '*xxxxxxx' is one of the options: 

To remove the save file data compression override:

To display the save file data compression override:

Using Software Compression for Tape and Optical

IBM i 7.5 and IBM i 7.4 has enabled software data compression for tape, optical, virtual tape and virtual optical.

The following PTFs are required to enable software data compression support for tape, optical, virtual tape and virtual optical:

7.5

• 5770SS1-SI84525

• 5770999-MF71323

• 5770BR1-SI84643

7.4

• 5770SS1-SI84526

• 5770999-MF71322

• 5770BR1-SI84629

For additional details reference Compression with ZLIB Algorithm.

The type of software data compression used by BRMS can be specified for backup to tape, optical, virtual tape and virtual optical using the DTACPR command detailed below:

To override the device data compression:

where '*xxxxxxx' is one of the options: 

To remove the device data compression override:

To display the device data compression override: