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Changing a Host LUN ID
A host LUN ID is an ID allocated by the storage system to a LUN mapped to a host. This ID is visible on the host. You can manually change host LUN IDs based on site requirements.
Prerequisites
- A mapping view has been created.
- The LUN group in the existing mapping view contains LUNs.
- Host services running on the LUN have been stopped. In addition, the LUN's physical disks and virtual disks generated by multipathing software have been uninstalled.
Context
- A host LUN ID is uniquely allocated to each LUN of a host.
- LUNs of different hosts can have the same host LUN ID.
Procedure
- Log in to DeviceManager.
- Choose
Provisioning >
Mapping View.
- Select a mapping view and click the LUN Group tab in the lower part of the left function pane.
- In the LUN group list, select the LUN whose host LUN ID you want to change and click Change Host LUN ID.
The Change Host LUN ID dialog box is displayed.
- Select a new host LUN ID and click OK.
- Confirm the information in the dialog box and select I have read and understand the consequences associated with performing this operation.
- Click OK.
A message is displayed, indicating that the operation succeeded.
- Click OK.
Provisioning > 
Mapping View.Follow-up Procedure
After modifying the host LUN ID, scan disks on the host again.