Perform the following steps to define new storage classes with the PAV option enabled:

1. Use ISMF to access the Storage Class application.

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2. Select option 3, Define a Storage Class.

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3. On page 2 of the Storage Class Define panel, set the Parallel Access Volume Capability value to one of the following values:
   • R (required)
   • P (preferred)
   • S (standard)
   • N (no preference)

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4. Complete the remaining entries on the Storage Class Define option panel.

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5. Update the ACS routines to include the new storage class.

   For more information, see Defining ACS routines in the z/OS DFSMSdfp Storage Administration.

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6. Activate the updated configuration using one of the following methods:
   1. On the CDS Application Selection panel in ISMF, complete one of the following actions:
      • Select the Activate option, or
      • Enter the ACTIVATE operator command on the command line.

        Example: ACTIVATE SCDS dsname

   2. From the operator console, enter the SETSMS command.

      Example: SETSMS SCDS dsname

Result: The new storage class is activated.

NaviQuest tip: You can specify the PAV option using the NaviQuest sample JCL, ACBJBAS1, to define, alter, or display a storage class.