Performing Universal Volume Manager Operations 5-25
Hitachi Universal Storage Platform V/VM Universal Volume Manager User’s Guide
Changing the Cross-subsystem Path

To change the cross-subsystem path, cancel the current cross-subsystem path,

and configure another cross-subsystem path as a new cross-subsystem path.

Replacing All the Cross-subsystem Paths with Newly-added Cross-subsystem Paths

This section explains how to change all the current cross-subsystem paths to

newly-added cross-subsystem paths with an example.

Figure 5-12 shows the overview of the operation and the status of the cross-

subsystem paths. When you delete the current cross-subsystem paths (A and

B) and add new cross-subsystem paths (C and D), you cannot delete both the

current cross-subsystem paths (A and B) in one operation because at least one

current path which functions normally has to be configured. In this case, you

need to delete the cross-subsystem path A and add the cross-subsystem path

C, and then apply the setting. After that, you need to delete the cross-

subsystem path B and add the cross-subsystem path D.

Legend
：Internal volume where external volume is mapped
Internal
Volume
External
Volume
A
B
C
D
：Cross-subsystem path whose status is Normal
：Cross-subsystem path whose status is Disconnect
：Added cross-subsystem path
Internal
Volume
External
Volume
A
B
C
D
Internal
Volume
External
Volume
A
B
C
D
Internal
Volume
External
Volume
A
B
C
D
Internal
Volume
External
Volume
A
B
C
D
Execute the Disconnect Pathscommand
on the cross-subs ystem path A.
Delete the cross-subsystem path A,
add the cross-subsystem path C,
and then apply the setting.
Execute the Disconnect Paths command
on the cross-subsystem path B.
Delete the cross-subsystem path B,
add the cross-subsystem path D,
and then apply the setting.

Figure 5-12 Overview of Operation to Replace All the Current Cross-

subsystem Paths with Newly-added Cross-subsystem Paths