Storage Device Management Software

Do you need concurrent access to mainframe volumes on your XP7 Storage? HP XP7 for Compatible Parallel Access Volumes (PAV) Software and HP XP7 for Compatible Hyper PAV Software enable high performance concurrent access of your mainframe volumes by permitting a mainframe host system to issue multiple I/O requests in parallel to individual logical devices within the HP XP7 Storage system. Without PAV, mainframe systems can initiate only one I/O request per device at a time, and must wait for the I/O to complete before starting another I/O request to the same device. PAV enables the host system to start several I/O requests simultaneously to the same device, thus greatly improving your overall performance. The XP7 Storage supports static PAV, dynamic PAV, and Hyper PAV; the number of aliases assigned to each base device does not change. With dynamic PAV, high workload base devices can borrow idle PAV aliases from other base devices, increasing their I/O capability.

Features

Improved Data Access Performance

HP XP7 for Compatible Parallel Access Volumes (PAV) Software enables high performance concurrent access of your mainframe volumes by permitting a mainframe host system to issue multiple I/O requests in parallel to individual logical devices within the HP XP7 Storage system.

The HP XP7 for Compatible Parallel Access Volumes (PAV) Software permits multiple paths to the same logical device. The software greatly enhances the performance of data accesses to the HP XP7 Storage by mainframe hosts.

Compatible Hyper PAV enhances the efficiency of PAV by selecting the alias IDs from a pool and binding them to base IDs only for the duration of the I/O operation. Since the pool allows fewer aliases than are required for conventional PAV, more addresses are available for use as base devices.