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Parallel parallel format indicates the data for each library is written to multiple volumes at the same time. The following command can be run to indicate that BRMS should use parallel parallel format when Parallel device resources are specified for BRMS save command or control group:
CRTDTAARA DTAARA(QTEMP/QSRPARFMT) TYPE(*CHAR) LEN(1)
NotesNOTES:
- A serial save is done instead of a parallel save when the save does not support writing to parallel devices, for example if *ALLUSR, *IBM or *NONSYS is specified for the Library (LIB) parameter on the Save Library (
SAVLIBBRM) command. - In releases IBM i 7.1 and IBM i 6.1, the following PTFs or their superseding PTFs are required:
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- 7.1 SI47935
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- 6.1 SI47934
- In release V5R4M0, parallel saves of *IBM, *ALLUSR, generic libraries or a list of libraries may result in either parallel-parallel or serial-parallel format. To force serial-parallel format for *IBM, *ALLUSR, generic libraries or a list of libraries, run the following command:
CRTDTAARA DTAARA(QUSRBRM/Q1APRLNONE) TYPE(*CHAR) LEN(1)
Performance considerations when saving and restoring data in parallel-parallel format
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