XP10000 (HITA737-96003, March 2007)

HPAV for z/OS user guide for the XP128/XP1024/XP12000/XP10000 23

NOTE: When each base device is assumed to be assigned the same number of aliases, the

recommended ratio of base devices to aliases is 1:3.

Verifying Base and Alias Device Definition

After defining the mapping between base devices and alias devices to the host operating system (see

”Definition of XP1024/XP128/XP12000/XP10000 Base and Alias Devices” on page 22), verify that the

host recognizes the XP1024/XP128/XP12000/XP10000 devices as specified.

To verify that the host system recognizes the settings for the XP1024/XP128/XP12000/XP10000 base and

alias devices:

1. At the MVS console display information about the base devices and the corresponding alias addresses

using the DEVSERV (DS) command. See ”Example: Verifying the Base Devices and Alias Addresses” on

page 23.

DS QPAV, XXXX,VOLUME (XXXX = address of the base device)

2. Verify that the information displayed by the DS command matches your definitions of base devices and

alias addresses.

NOTE: The information displayed by the DS command should match the HPAV settings that you specified

at the Command View management station or XP Remote Web Console for base devices and alias

addresses. If it does not match, redefinition is required. After dynamic HPAV has been used, the

information may not match, but the mismatch will not cause any problems. For dynamic HPAV, the

mismatch occurs because the host system can change the number of aliases assigned to each base device.

Example: Verifying the Base Devices and Alias Addresses

Verifying the Status of the Devices

After verifying the generation definition for the XP1024/XP128/XP12000/XP10000 devices, verify the

status of the devices for each channel path (CHP).

To verify the status of the XP1024/XP128/XP12000/XP10000 devices by CHP ID:

1. At the MVS console display the status of the XP1024/XP128/XP12000/XP10000 devices by issuing

the Display Matrix command for each CHPID connected to the XP1024/XP128/XP12000/XP10000.

See ”Example: Verifying the Status of Devices Defined by CHP ID” on page 24.

D M=CHP(XX) (XX = CHP ID)

2. Verify that the displayed information matches the device status that was defined when the generation

definition was made:

• If the information is correct, the XP1024/XP128/XP12000/XP10000 is now ready for HPAV

activities. For information on monitoring HPAV activities, see ”Monitoring HPAV Activities” on

page 24.

DS QPAV, D222,VOLUME

IEE459I 08:20:32 DEVSERV QPATHS 591

Host Subsystem

Configuration Configuration

------------- -------------

UNIT UNIT UA UNIT

NUM UA TYPE STATUS SSID ADDR TYPE

--- --- --- --- --- --- ---

D222 22 BASE 0102 22 BASE

D2FE FE ALIAS-D222 0102 FE ALIAS-22

D2FF FF ALIAS-D222 0102 FF ALIAS-22

***3 DEVICE(S) MET THE SELECTION CRITERIA