Dell POWEREDGE M1000E - Manual (Page 426)

426 Fabric OS Administrator’s Guide
53-1002745-02
User- and auto-assigned FA-PWWN behavior
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NOTE
For the server to use the FA-PWWN feature, it must be using a Brocade HBA or adapter. Refer to the
release notes for the HBA or adapter versions that support this feature.
Some configuration of the HBA must be performed to use the FA-PWWN.
User- and auto-assigned FA-PWWN behavior
An FA-PWWN can be either user-generated or automatically assigned by the fabric. The
automatically assigned FA-PWWN is created by default when you enable the feature without
explicitly providing a virtual PWWN.
Each switch port and Access Gateway port can be assigned up to two WWNs, one assigned
automatically and one assigned by the user. Only one FA-PWWN can be active at any given time.
The user-assigned FA-PWWN takes precedence over the automatically assigned FA-PWWN. This
means the switch will bind the user-assigned FA-PWWN to the port if both a user-assigned and an
automatically assigned FA-PWWN are available. If you want to select the automatically assigned
FA-PWWN over the user-assigned FA-PWWN, you must delete the user-assigned FA-PWWN from the
port to which it has been assigned.
Checking for duplicate FA-PWWNs
The switch ensures that automatically assigned FA-PWWNs are unique in a fabric. However, it is the
responsibility of the administrators to ensure that user-assigned FA-PWWNs are also unique
throughout the fabric.
CAUTION
The administrators should ensure that the same user-assigned FA-PWWN is not used in multiple
chassis. There is no fabric-wide database, and adding the same FA-PWWNs in multiple chassis
causes duplicate PWWNs.
Configuring FA-PWWNs
Use the faPwwn command to create and manage FA-PWWNs. The faPwwn command supports the
following management tasks:
• Binding an automatically assigned or a user-assigned FA-PWWN to a switch port.
• Overriding an automatically assigned FA-PWWN with a user-assigned FA-PWWN.
• Binding an Access Gateway port with an automatically assigned or a user-assigned FA-PWWN.
• Deleting any existing FA-PWWN bindings.
• Moving an FA-PWWN from one port to another port.
• Moving an FA-PWWN assigned to an Access Gateway port to another Access Gateway.
• Displaying information about configured FA-PWWN bindings.
Refer to the Fabric OS Command Reference for information about using the faPwwn command.