Modify LUN: Mapped to Specific Hosts

Remap the LUN to restrict access to one or more specific SAN hosts, or map additional hosts to the LUN.

1. Click the Mapping tab.
2. Select the appropriate Access Protocol: Fibre Channel (FC), iSCSI, or both.
   This selection determines the protocols that will be permitted for accessing the LUN.

   Important! When you select both FC and iSCSI protocols, the system uses FC optimized and non-optimized paths as a preference over iSCSI paths. Also, the system does not mix load balancing between protocols.
3. Click the Only selected hosts option.
4. In the Ports Masked for this LUN table, you can select Yes or No in the Masked column to determine whether a port should be masked.
5. In the LUN Controller Assignment section, two Controller settings appear. The Current Controller field is informational only. From the Assigned Controller drop-down list, select a CU or select auto assign.
   The system auto-assigns the LUN to an available Controller.
6. Click Create to create a new host mapping.
   Select values for the LUN mapping fields:

   • Host Name: Select the ESX host to associate with the LUN.

   • LUN Number: Select the number to assign to the LUN for the selected host, and click OK. This number must be unique for that particular host. It need not be unique across all hosts.

   • (Optional) Limit available LUN numbers to LUN numbers not in use by ESX hosts: In the Create LUN Mapping dialog, the LUN numbers listed are LUN numbers available for the selected Oracle FS System host. Select this option to further restrict this list to only those LUN numbers not in use by that host as an ESX host in the vSphere environment. Selecting this option initiates a scan of the vSphere environment that might take several seconds to complete.

7. (Optional) Click OK and Continue to select additional hosts to map to the LUN.
8. Click OK to save all of your updates, or continue on to the Data Protection tab to make additional updates to the LUN.