Spectra Logic Spectra T950V User Manual page 63

Chapter 2 — Architecture Overview
World Wide Names for Fibre Channel Partitions
The World Wide Name (WWN) displayed for each partition on the Shared
Library Services screen is the WWN of the controller (RIM2 or drive) that
provides the robotic control path for the partition (the exporting
controller). The WWN is based on the physical location of the controller in
the library and remains constant even if the controller is replaced. The new
controller assumes the location‐based WWN.
For Partitions with RIM2s as the Exporting Controller
 The partition WWN is actually the World Wide Node Name (WWNN)
 If multiple partitions use the same Fibre Channel port on the RIM2, all
 If you create two partitions and configure one partition to use Port A
 If you export the same partition out both port A and port B on a RIM2,

August 2019
If multiple exporting controllers are configured in a partition,
Note:
there are multiple WWNs for the partition. Click Summary to
display the Partition Settings screen, which lists all of the
WWNs.
Figure 21 The WWN assigned to the partition.
for the exporting controller.
of the partitions have the same WWNN and the same World Wide Port
Name (WWPN). However, the partitions will have different LUNs
under those controllers, starting at LUN zero (0).
and another to use Port B, the WWNN/WWPN of port A will start with
21 and the WWNN/WWPN of port B will start with 22. In this case the
ports are independent. However, both of the partitions will show the
WWN for Port A only.
the WWNN will be the same for both ports but the WWPN will be
different. This scenario is a type of redundant path to the robotics.
For more information about WWNs, log on to the portal (see Accessing
the Technical Support Portal on page 447), open the Knowledge Base,
and in the KBA field, enter 01764 to access the article Spectra Library
World Wide Names (WWNs) for QIPs (the article discusses F‐QIPs; the
concepts are the same for a RIM2).
Fibre Channel Connectivity
User Guide—Spectra T950V Library
63