Logical Volume Images; Logical Units; Mainframe Operations; Mainframe Compatibility And Functionality - HP XP P9500 Owner's Manual

The mainframe data management features of the P9500 may have restrictions on CU image
compatibility.
For further information on CU image support, see the Mainframe Host Attachment and Operations
Guide, or contact HP.

Logical Volume images

The P9500 supports the following mainframe LVI types:
The LVI configuration of the P9500 disk array depends on the RAID implementation and physical
data drive capacities. The LDEVs are accessed using a combination of logical disk controller number
(00-01), CU number (00-FE), and device number (00-FF). All control unit images can support an
installed LVI range of 00 to FF.

Logical Units

The P9500 disk array is configured with OPEN-V logical unit types. The OPEN-V logical unit can
vary in size from 48.1 MB to 4 TB. For information on other logical unit types (e.g., OPEN-9),
contact HP support.
For maximum flexibility in logical unit configuration, the P9500 provides the VLL and LUN Expansion
(LUSE) features. Using VLL, users can configure multiple logical units under a single LDEV. Using
Virtual LVI or LUSE, users can concatenate multiple logical units into large volumes. For further
information on VLL and Virtual LVI, see the HP XP P9000 Performance for Open and Mainframe
Systems User Guide and the HP XP P9000 Provisioning for Open Systems User Guide

Mainframe operations

This section provides high level descriptions of mainframe compatibility, support, and configuration.

Mainframe compatibility and functionality

In addition to full System Managed Storage (SMS) compatibility, the P9500 disk array provides
the following functions and support in the mainframe environment:
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3390-3, -3R, -9, L, and -M. The 3390-3 and 3390-3R LVIs cannot be intermixed in the same
disk array.
3380-3, -F, -K.
Sequential data striping
Cache fast write (CFW) and DASD fast write (DFW)
Enhanced dynamic cache management
Extended count key data (ECKD) commands
Multiple Allegiance
Concurrent Copy (CC)
Peer-to-Peer Remote Copy (PPRC)
Compatible FlashCopy
Parallel Access Volume (PAV)
Enhanced CCW
Priority I/O queuing
Red Hat Linux for IBM S/390 and zSeries
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Mainframe operations 21