1. Oracle VM Server for SPARC 3.6 Administration Guide
  2. Creating an I/O Domain by Using PCIe SR-IOV Virtual Functions
  3. Using Fibre Channel SR-IOV Virtual Functions
  4. Fibre Channel Device Class-Specific Properties
  5. World-Wide Name Allocation for Fibre Channel Virtual Functions

World-Wide Name Allocation for Fibre Channel Virtual Functions

The Logical Domains Manager supports both the automatic allocation and the manual assignment of world-wide names for the Fibre Channel virtual functions.

Automatic World-Wide Name Allocation

Logical Domains Manager allocates a unique MAC address from its automatic MAC address allocation pool and creates IEEE format node-wwn and port-wwn property values. 

port-wwn = 10:00:XX:XX:XX:XX:XX:XX
node-wwn = 20:00:XX:XX:XX:XX:XX:XX

XX:XX:XX:XX:XX:XX is the automatically allocated MAC address.

This automatic allocation method produces unique WWNs when the control domains of all systems that are connected to the same Fibre Channel fabric are also connected by Ethernet and are part of the same multicast domain. If you cannot meet this requirement, you must manually assign unique WWNs, which is required on the SAN.

Manual World-Wide Name Allocation

You can construct unique WWNs by using any method. This section describes how to create WWNs from the Logical Domains Manager manual MAC address allocation pool. You must guarantee the uniqueness of the WWNs you allocate.

Logical Domains Manager has a pool of 256,000 MAC addresses that are available for manual allocation in the 00:14:4F:FC:00:00 - 00:14:4F:FF:FF:FF range.

The following example shows the port-wwn and node-wwn property values based on the 00:14:4F:FC:00:01 MAC address: 

port-wwn = 10:00:00:14:4F:FC:00:01
node-wwn = 20:00:00:14:4F:FC:00:01

00:14:4F:FC:00:01 is the manually allocated MAC address. For information about automatic MAC address allocation, see Assigning MAC Addresses Automatically or Manually.

Note:

It is best to manually assign the WWNs to ensure predictable configuration of the SAN storage. You must use the manual WWN allocation method when all systems are not connected to the same multicast domain by Ethernet. Use this method to guarantee that the same WWNs are used when Fibre Channel virtual functions are destroyed and re-created. Automatically allocated WWNs are not saved for later recovery.