Multiple Volume Report
What you can do with the report
It is often necessary to allocate data sets across multiple volumes (for space or performance reasons). However, multiple-volume support adds overhead, and some of the data sets might not need to be allocated on multiple volumes.
To aid in moving data sets to a single volume, the Multiple Volume Report displays the following:
- Data set characteristics
- Data set size for each volume and for the data set as a whole
Organization of the report
The Multiple Volume Report is organized by data set. Within each data set, volumes are listed in order of occurrence in the data set’s allocation.
Usage notes for creating the report
Consider the following information when creating the Multiple Volume Report:
- Data set selection by volume and pool is supported, but BMC Software does not recommend this method for selection. If a volume is omitted in the selection parameters, any data sets with extents or copies on that volume are not reported. BMC Software recommends using the DSN parameter for data set selection for this report.
The DFSMSHSM migration control data set (MCDS) is required if migrated data sets are to be included in the report. If the ddname MCDS is not in the JCL, migrated data sets (ML1 or ML2) are not included. Omitting the MCDS data set has the same effect as specifying EXCLUDE MIGRATED DS=YES.
Available fields on the report
The following fields are available for the Multiple Volume Report:
Column heading | Description |
|---|---|
DATASET-NAME | Indicates the name of pool or storage group, volume, and data set by which the report is organized |
TYP | Indicates the data set type (M=cataloged; U=uncataloged) |
VOLSER | Indicates the volumes on which the data set resides |
LRECL | Indicates the record length of the data set |
BLKL | Indicates the block size of the data set |
RECFM | Indicates the record format of the data set |
DSORG | Indicates the organization of the data set |
SIZE | Indicates the size of the data set |
Sample report
The following figure is a sample of the Multiple Volume Report:
DATASET-NAME TYP VOLSER LRECL/BLKL /RECFM/DSORG SIZE CREATED LASTREF
==================================================================================================================================
AP5A.ACCUM.YTD.TRANS M EMP103 3120/ 3120/FB /PS 26 MB 30/01/1998 21/02/1998
EMP021 3120/ 3120/FB /PS 15 MB 30/01/1998 21/02/1998
EMP056 3120/ 3120/FB /PS 11 MB 30/01/1998 21/02/1998
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SUMMARY FOR AP.ACCUM.YTD.TRANS TOTAL NUMBER OF VOLUMES = 3 TOTAL SIZE OF DS = 52 MB
DXUWW7.MPER.VSAM.DATA M EMP005 / 4096/U /VS 12 MB 14/01/1998 --/--/--
EMP011 / 4096/U /VS 43 MB 14/01/1998 24/02/1998
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SUMMARY FOR DXUWW7.MPER.VSAM.DATA TOTAL NUMBER OF VOLUMES = 2 TOTAL SIZE OF DS = 55 MB
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GLOBAL REPORT SUMMARY TOTAL NUMBER OF DS = 2 TOTAL SIZE OF DS = 107 MB