Displaying Fdmi; Rscn; About Rscn Information - Cisco Nexus 5000 Series Configuration Manual

Managing FLOGI, Name Server, FDMI, and RSCN Databases
• Manufacturer, model, and serial number
• Node name and node symbolic name
• Hardware, driver, and firmware versions
• Host operating system (OS) name and version number
All FDMI entries are stored in persistent storage and are retrieved when the FDMI process is started.

Displaying FDMI

This example shows how to display all HBA details for a specified VSAN:
switch# show fdmi database detail vsan 1

RSCN

The Registered State Change Notification (RSCN) is a Fibre Channel service that informs hosts about changes
in the fabric. Hosts can receive this information by registering with the fabric controller (through a State
Change Registration (SCR) request). These notifications provide a timely indication of one or more of the
following events:
• Disks joining or leaving the fabric
• A name server registration change
• A new zone enforcement
• IP address change
• Any other similar event that affects the operation of the host
A switch RSCN (SW-RSCN) is sent to registered hosts and to all reachable switches in the fabric.
The switch sends an RSCN to notify registered nodes that a change has occurred. It is up to the nodes to
Note
query the name server again to obtain the new information. The details of the changed information are
not delivered by the switch in the RSCN sent to the nodes.

About RSCN Information

A switch RSCN (SW-RSCN) is sent to registered hosts and to all reachable switches in the fabric.
The switch sends an RSCN to notify registered nodes that a change has occurred. It is up to the nodes to
Note
query the name server again to obtain the new information. The details of the changed information are
not delivered by the switch in the RSCN sent to the nodes.
OL-27583-01
Cisco Nexus 5000 Series NX-OS SAN Switching Configuration Guide, Release 5.2(1)N1(1)
Displaying FDMI
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