XP10000 (HITA737-96003, March 2007)

10 HPAV for the XP1024/XP128/XP12000/XP10000

The two device types for HPAV operations are:

• Base device – 3390B: A base device is a formatted LVI that contains user data and to which one or

more alias devices can be assigned. A base device must be defined to the host as a 3390B device type

(for example, 3390B-3 or 3390B-9).

CAUTION: The device used as a journal volume of Universal Replicator for z/OS® cannot be used

as a base device.

• Alias device – 3390A: An alias device is a formatted but unused logical device whose LDEV ID

(address) can be used as an alias for a base device. Alias devices cannot be modified online. Each

alias must be within the same logical CU image as the base device to which it is assigned. An alias

device must be defined to the host as a 3390A device type (for example, 3390A-3 or 3390A-9).

NOTE: The 3390A and 3390B devices are not related to the 3390-3A/B/C multiplatform devices.

Controller Emulation Type

The IBM® 2105 or 2107 controller emulation type is required for HPAV operations. Each logical CU image

on the XP1024/XP128/XP12000/XP10000 that contains HPAV base and alias devices must be set for

2105 or 2107 controller emulation.

NOTE: To configure copy devices and HPAV devices under the same logical CU image, refer to Table 3

on page 14 for important information and instructions. Copy devices include TrueCopy (TC390), Universal

Replicator for z/OS®, PPRC, and XRC devices.

Command View XP or XP Remote Web Console based HPAV

HPAV running under Command View XP or XP Remote Web Console configures the HPAV devices on

XP1024/XP128/XP12000/XP10000 that have been registered with Command View XP or XP Remote

Web Console. HPAV displays the LDEVs in use and the unassigned LDEV IDs that are available for use as

aliases. You can use HPAV to assign aliases to base devices and cancel aliases.

NOTE: HPAV will not function for an XP1024/XP128/XP12000/XP10000 that does not have the HPAV

option enabled on it (see ”Enabling the HPAV Options” on page 17).

HCD Definitions for the XP1024/XP128/XP12000/XP10000 HPAV Devices

The HPAV base and alias devices on the XP1024/XP128/XP12000/XP10000 must be defined to the host

system using HCD. The XP1024/XP128/XP12000/XP10000 base devices must be 3390B devices (for

example, 3390B-3) and the XP1024/XP128/XP12000/XP10000 alias devices must be 3390A devices

(for example, 3390A-3). The required controller emulation for each XP1024/XP128/XP12000/XP10000

CU image that contains HPAV devices is 2105 or 2107 emulation. ”Using HCD to Define and View

XP1024/XP128/XP12000/XP10000 LCUs and HPAV Devices” on page 27 provides sample instructions

on using HCD to define an HPAV device.

NOTE: The 3390A and 3390B devices are not related to the 3390-3A/B/C multiplatform devices. HPAV

operations require that one SSID be set for each set of 256 LDEVs.

WLM Host Software Definitions for Dynamic Alias Management

The Workload Manager (WLM) software component of the MVS/ESA, z/OS, or OS/390 operating

system enables the host to interface with the HPAV functionality of the

XP1024/XP128/XP12000/XP10000. WLM compatibility mode provides static HPAV functionality and