HP StorageWorks XP Remote Web Console Software - Manual (Page 35)

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 you have defined the mapping between base devices and alias devices to the host operating
system (see
“Defining Base and Alias Devices” (page 34) ), you need to verify that the host
recognizes the storage system devices as specified.
To verify that the host system recognizes the settings for the storage system base and alias devices:
1. At the MVS or z/OS console display information about the base devices and the corresponding
alias addresses using the DEVSERV (DS) command) (see output sample in
Figure 19 (page
35) ):
DS QPAV, XXXX,VOLUME (XXXX = address of the base device)
The relationship between base and alias devices is not fixed for the OS using Compatible
Hyper PAV. Therefore, only the information about the base devices is displayed (see output
sample in
Figure 20 (page 35) ).
2. Make sure that the information displayed by the DS command matches your definitions of
base devices and alias addresses.
The information displayed by the DS command should match the Compatible PAV settings
that you specified at the Remote Web Console computer for base devices and alias addresses.
If it does not match, redefinition is required. After dynamic Compatible PAV has been used,
the information may not match, but the mismatch will not cause any problems. For dynamic
Compatible PAV, the mismatch occurs because the host system can change the number of
aliases assigned to each base device.
Figure 19 Verifying the Base Devices and Alias Addresses (Compatible PAV)
Figure 20 Verifying the Base Devices (Compatible Hyper PAV)
Considerations for Defining the Storage System Devices to the Host System 35