HP XP External Storage Software - Manual (Page 14)

Figure 4 XP External Storage Components
This section describes the details on the storage systems, cross-subsystem paths, volumes and
mapping paths as shown in
Figure 4 (page 14) .
Storage Systems and Cross-subsystem Paths
Before using XP External Storage, connect the Fibre Channel port of the local storage system to
the external storage system port with the fiber cable. The route between the ports that are connected
with the cable, is called the cross-subsystem path.
The Fibre Channel port of the local storage system is set to connect to a host by default. The Fibre
Channel port can be connected to an external storage system if you change the attribute of the
Fibre Channel port to make it an external port. The external storage system port can be a target
port, that is, a port that would be connected to a host if the storage system were not being used
as external storage.
Two or more external storage systems can be connected to one external port. You can add an
external storage system to a port that is being used by another external storage system.
To manipulate XP External Storage, you need to install XP External Storage using the license key.
Use your Remote Web Console computer to access the local storage system via SVP (web server)
and perform the XP External Storage operations.
Volumes and Mapping Paths
Volumes in the external storage system (see C in Figure 4 (page 14) ) are called external volumes.
Mapping is necessary to manipulate an external volume from the local storage system. The system
administrator maps an external volume as an internal volume (see B in
Figure 4 (page 14) ) in the
14 About XP External Storage Operations