Create SAN LUN, Mapping Tab

Navigation: SAN > Storage > LUNs > Actions > Create > Mapping

Creates the LUN-to-host mapping settings for a LUN.

Access Protocol

Specifies the protocols that are allowed for accessing the logical volume.

Valid options:

Fibre Channel (FC): Specifies that hosts can use the FC protocol to access this LUN.
Tip: The system always uses FC paths at a preference over iSCSI paths. Also, load balancing is not mixed between these two protocols.
iSCSI: Specifies that hosts can use the iSCSI protocol to access this LUN.

Only selected hosts (via maps)

Specifies that only designated SAN hosts can access this LUN using a specific, possibly different, LUN number on each of those hosts. If the LUN is mapped, the LUN number must be unique to the mapped SAN host.

All hosts may access this LUN using LUN Number

Specifies all SAN hosts accessing this LUN use the same LUN number. Select this option to activate the LUN number selection drop-down list.

LUN Controller Assignment

The LUN Controller Assignment option allows you to home the LUN copy on a Controller other than the Controller on which the source LUN is homed. The default is to home the copy on the same Controller as the source LUN.

Current Controller

Identifies the current Controller on which the LUN is homed.

Note: For new source LUNs, this field is not available; instead, use the Assigned Controller option.

Assigned Controller

Identifies the Controller to which the system should assign the LUN. Choose an available Controller node from the list.

Auto-assign: Assigns your LUN to an available Controller. This option allows the Pilot to move resources to the other Controller node in the event of a failover and maximizes performance by balancing the system load with existing logical volumes. You can modify this field after the LUN has been created.
Note: If you select this option, you cannot set up port masking and port mapping until after the LUN is created.
Controller Name: Select a Controller node from the drop-down list. Use this option when you want to access the data from a particular port (port masking).

Ports Masked for this LUN

Displays the physical Controller ports to exclude (mask) so they cannot access the LUN.

Masked: Indicates whether the port for the LUN is masked.
Protocol: Identifies the type of access protocol, FC or iSCSI.
Controller: Identifies the name of the Controller.
Slot: Identifies the slot number of the Controller HBA.
Port: Identifies the Controller port number.
Controller Port Address: Identifies the unique identifier of each Controller network port. For FC networks, this identifier is the World Wide Name (WWN). For iSCSI networks, this identifier is the Media Access Control (MAC) address.

LUN Mapping

Manages the LUN‑to‑Host mapping assignments.

Note: The LUN mapping table only displays when you select the Only selected hosts (via maps) option.

You can map a LUN or Clone LUN to either a single host or a host group.

Hosts Mapped to this LUN

Name: Identifies the SAN host that accesses LUNs configured on the Oracle FS System. If the Oracle FS Path Manager is not installed, the system displays the WWN of the FC HBA or the IP address of the iSCSI device.
Map via LUN Number: Identifies the number to assign to the LUN for the associated SAN host. This number must be unique for that particular host. It need not to be unique across all hosts.

Create

Opens the dialog that allows you to create the LUN-to-host mapping based on your selections for host name and assign the LUN number that the host uses.

Modify

Opens the dialog that allows you to change the LUN mapped to the associated host.

Remove

Removes the LUN mapping for the selected SAN host.