XP10000 (HITA737-96003, March 2007)

22 HPAV for the XP1024/XP128/XP12000/XP10000

NOTE: To cancel the alias included in another CU group, switch the CU group by step 1 and the follow

step 2 to step 5.

Figure 6 Canceling aliases

Considerations for Defining the XP1024/XP128/XP12000/XP10000 Devices to the

Host System

For XRC, do not intermix the 2105 or 2107 controller emulation type with other emulation types within the

XP1024/XP128/XP12000/XP10000. If the XP1024/XP128/XP12000/XP10000 has existing XRC

volumes and you want to implement HPAV, complete the following steps to change to 2105 or 2107

emulation:

1. Stop all jobs and delete all XRC pairs.

2. Change the DKC emulation type of all CHA packages in the XP1024/XP128/XP12000/XP10000 to

I-2105 or I-2107.

3. Restart jobs and re-establish XRC pairs.

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

Definition of XP1024/XP128/XP12000/XP10000 Base and Alias Devices

The unit address mapping for base and alias devices must be defined to the host operating system and

must match the address mapping defined at the Command View management station or XP Remote Web

Console. If the mappings do not match, serious failures can occur during data processing. The following

shows examples of mappings between base devices and alias devices.

(A) x00-x3F:Base (B) x00-x3F:Base (C) x00-x7F:Alias (D) x00-x3F:Alias

x40-xFF:Alias x40-x7F:Alias x80-xFF:Base x40-x7F:Base

x80-xBF:Base x80-xBF:Alias

xC0-xFF:Alias xC0-xFF:Base