Parallel Access Volumes

The parallel access volumes (PAV) features establish the extent of IBM® authorization for the use of the parallel access volumes function.

Parallel Access Volumes (PAVs), also referred to as aliases, provide your system with access to volumes in parallel when you use an IBM Z host.

A PAV capability represents a significant performance improvement by the storage unit over traditional I/O processing. With PAVs, your system can access a single volume from a single host with multiple concurrent requests.