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 The Data compaction (COMPACT) parameter on the DUPMEDBRM command can be used to indicate whether to use data compaction on the to volume.
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parameter on
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the DUPMEDBRM command
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can be
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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')
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