HP XP Continuous Access Software User Manual
Page 92
Figure 40 Configuration of the Delta Resync Operation that utilizes Remote Command Devices
To create above configuration, perform following operations:
1.
Configure paths between external ports and target ports.
For details about external ports, see the HP XP24000/XP20000 External Storage Software
User's Guide. For instructions on setting paths, see theHP XP24000/XP20000 LUN Manager
User Guide.
2.
Create command devices in all sites.
For instructions on setting command devices, see the HP XP24000/XP20000 LUN Manager
User Guide.
3.
Map the command devices in all sites as remote command devices in all paired sites.
For instructions on mapping remote command devices, see the HP XP24000/XP20000 External
Storage Software User Guide.
4.
Assign remote command devices to mirrors in all sites so that you can use command devices
via remote command devices.
For details on assigning remote command devices to mirrors, see
Devices to Mirrors” (page 175)
.
If the XP Continuous Access Synchronous pair, the XP Continuous Access Journal pair, and the XP
Continuous Access pair for delta resync operation are deleted, their assigned remote command
devices to mirrors are automatically released.
92
Preparing for XP Continuous Access Journal Operations