The mainframe data management features of the HP XP7 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 HP XP7 supports the following mainframe LVI types - 3390-3, -3R, -9, L, and -M. The 3390-3
and 3390-3R LVIs cannot be intermixed in the same disk array.
The LVI configuration of the HP XP7 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 HP XP7 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 HP XP7 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 XP7 Performance for Open and Mainframe Systems
User Guide and the HP XP7 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 HP XP7 disk array provides
the following functions and support in the mainframe environment:
• 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
Mainframe operating system support
The HP XP7 disk array supports most major IBM Mainframe operating systems and Open System
operating systems, such as Microsoft Windows, Oracle Solaris, IBM AIX, Linux, HP-UX, and
VMware. For more complete information on the supported operating systems, go to: http://
www.hp.com
Mainframe operations 21
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