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Implementing the PAV option enhancement z/OS DFSMSdfp Storage Administration SC23-6860-01 |
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Before you begin: Ensure that your system is running at z/OS® V1R6. Migration actions: If you do not plan to exploit the PAV volume selection capability, you do not need to perform any migration actions. However, if you plan to exploit the PAV capability, you must make changes to the SMS configuration. Perform the following steps to implement the PAV volume selection capability in the storage class:
Result: Now you have more control over the volume selection process for a SMS-managed data set, depending on whether a volume is PAV enabled. You can update automatic class selection (ACS) routines to use the new or modified storage classes with the PAV capacity enabled. Restriction: Striped data sets and best-fit data set allocations support the PAV option in a limited way. If PAV capability is required, all volumes that do not have this capability are rejected. However, if you specify a PAV capability of Preferred, Standard, or Nopreference for a striped or best-fit data set, this PAV option is ignored. |
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