z/VSE Parallel Access Volume (PAV) enhancements
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Parallel Access Volume (PAV) is an optional licensed feature on the IBM System Storage DS6000/DS8000/ESS series. Parallel access volumes are managed by creating multiple addresses for a single logical device. z/VSE supports one base device and up to 7 alias devices. With basic PAV support for ECKD devices z/VSE can access such a PAV device in parallel, which allow more than one I/O operation to be processed for a single logical device. This may give significant performance benefits dependent on your workload.
Now we improved our PAV support - especially the error recovery - and released the APARs just today..
We also have a PAV white paper for more information or our z/VSE Planning and z/VSE Administration books.
Have a good weekend.