Overview Of Mainframe Operations; Mainframe Compatibility And Functionality; Connectivity - HP XP P9500 Operation Manual

1 Overview of mainframe operations

This chapter provides an overview of mainframe host attachment issues, functions, and operations.

Mainframe compatibility and functionality

The P9500 disk arrays provide full System-Managed Storage (SMS) compatibility and support the
following features 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)
Extended Remote Copy (XRC)
FlashCopy
Parallel Access Volume (PAV)
Enhanced Channel Command Word (CCW)
Priority I/O queuing
The following table lists the mainframe operating systems currently supported by the storage system.
Contact your HP representative for the latest information on mainframe operating system support.
Table 1 Mainframe operating system support
Vendor
IBM
Red Hat
Fujitsu

Connectivity

The storage system supports all-mainframe, all-open-system, and multi-platform configurations. The
CHAs process the channel commands from the hosts and manage host access to cache. In the
mainframe environment, the channel adapters (CHAs) perform CKD-to-FBA and FBA-to-CKD
conversion for the data in cache.
Each CHA feature (pair of boards) is composed of one type of host channel interface: FICON/zHPF
or Fibre Channel Protocol (FCP). The channel interfaces on each board can transfer data
simultaneously and independently.
Operating systems
OS/390
MVS/ESA, MVS/XA
VM/ESA, VSE/ESA
z/OS, z/OS.e, z/VM, z/VSE
TPF
Linux for IBM S/390 and zSeries
Novell SuSE for IBM S/390 and zSeries
MSP
Mainframe compatibility and functionality 5