Exclude volumes or a storage group from PDS Compression
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Exclude volumes or a storage group from PDS Compression

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Article ID: 10760

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Updated On:

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Issue/Introduction

How is it possible to exclude volumes or a storage group from PDS Compression?

Resolution

Today there is no EXCLUDE parameter available with the SCAN or COMPRESS command to exclude volumes or a storage group from the PDS Compression utility, but you could use the following workaround:

  1. Use the CMDGENDSN parameter of the REPORT command to generate a data set that contains entries consisting of the data set names that are to be excluded later from the PDS Compression utility:
    SCAN REALVOLS
    SELECT CRITERIA=(DSORG,EQ,PO)
    EXCLUDE VOL=(volsr1,volsr2,…),SGNAME=sgname
    REPORT MVD,CMDGENDSN=dsn.excludes

  2. Copy the data set dsn.excludes to a parmlib member dsnexcl
  3. Run the PDS Compression utility excluding the selected data sets by specifying the previously created member in the EXTABLE parameter of the SCAN command:
    SCAN VOLUMES=(/),
    DSNAMES=(/), 
    THRESHOLD=(90,5,95,0,0), 
    EMPTY,
    ALLOCATE=(80,10,80), 
    EXTABLE=dsnexcl