Change Main CM
Overview
This function switches the Main CM. The Main CM is the Controller Module with the currently enabled LAN port used for device management.
This function can only be used when a Web GUI is connected to a Sub CM.
Log in again from Web GUI after switching the Main CM.
When multiple controllers are present, the CM with access privileges to manage the storage system is called the Main CM. All others are called Sub CMs. When an error occurs in a CM or a LAN, the Main CM is automatically switched, and the IP address of the old Main CM is passed to the new Main CM. By specifying the IP address of the Sub CM, the Main CM can be forcibly switched to the Sub CM when an error occurs and the Main CM cannot be connected.
Device configuration cannot be continued if the IP address to connect to the CM is changed. Logging in again with the new IP address is required.
Display Contents
This function switches the Main CM.
CM Information
| Item | Description |
|---|---|
Current Main Controller Module |
The current Main CM is displayed. CE#n CM#n or CM#n |
Controller Module connected to GUI |
The CM that is logged in with Web GUI (Sub CM) is displayed. The displayed CM changes to the Main CM. CE#n CM#n or CM#n |
Operating Procedures
Switch the Main CM.
Click [Change Main CM] in [Action].
Click the [Change] button.
→ A confirmation screen appears.
Click the [OK] button.
→ The Main CM is switched.
Click the [Done] button to return to the [Utility] screen.
After the process is completed successfully, log in again using Web GUI.