Use Compaction on Tapes Duplicated with DUPMEDBRM - Q1ADUPCOMP

Data compaction is supported for the to volume on the Duplicate Media using BRM (DUPMEDBRM) command.


In releases IBM i 6.1 and later, the Data compaction (COMPACT) parameter on the DUPMEDBRM command can be used to indicate whether to use data compaction on the to volume.

NOTES:

  1. In releases IBM i 6.1 and later, the following PTFs or their superseding PTFs are required:
              7.1 SI38740
              6.1 SI38739
  2. Help text for the COMPACT parameter is not available until 7.2.
  3. The new auto duplication feature in release IBM i 6.1 and later will not directly support the new parameter on the media policy as not all the parameters are being put on this feature. However, by changing the DUPMEDBRM command default to *YES for the Compact parameter, the behavior can be acquired.


In release V5R4M0, these commands can be used to create data area Q1ADUPCOMP to indicate whether to use data compaction on the to volume:

This would cause *YES behavior (which is desired on the TS7650 to physical 3584 tape)

CRTDTAARA DTAARA(QTEMP/Q1ADUPCOMP) TYPE(*CHAR) LEN(9) VALUE('*YES')

This would cause *NO behavior:

CRTDTAARA DTAARA(QTEMP/Q1ADUPCOMP) TYPE(*CHAR) LEN(9) VALUE('*NO')

This would cause the current behavior (i.e. if the data area did not exist):

CRTDTAARA DTAARA(QTEMP/Q1ADUPCOMP) TYPE(*CHAR) LEN(9) VALUE('*FROMFILE')

NOTES:

  1. In release V5R4M0, the following PTF or their superseding PTFs are required:
              V5R4M0 SI38733
  2. This data area must be created for each job that runs the DUPMEDBRM command. If the DUPMEDBRM command is run in batch, the data area must also be created in library QTEMP for the batch job.