1 HV Installation and Operations Guide

Chapter 4 Perform Configuration 87

Chapter 4

Note For In-Band Management to be operational, World Wide Name

(WWN) schemes MUST be compliant with IEEE Fibre Channel

Format 1, where the left-most hexadecimal character (the NAA

field) of the WWN is ‘1’. Further, the upper nibble of the third

byte (the sixth hexadecimal value from the right) must be a value

of ‘0’ or ‘1’.

■ Select 1) to enter a new value for the World Wide Name High.

Ordinarily, this value should not be changed.

■ Select 2) to enter a new value for the World Wide Name Low.

Ordinarily, this value should not be changed.

■ Select 3) to toggle the discovery mode among the following options:

Auto Discovery on Reboot Events

Auto Discovery on Link-Up Events

Manual Discovery Only

Discovery OFF

Discovery mode determines how the bridge will discover new Fibre

Channel devices. It enables the bridge to access Fibre Channel target

devices. For use in a tape library or MO jukebox, the Discovery Off mode

is the recommended and default setting.

Auto Discovery allows the bridge to automatically discover all Fibre

Channel devices when the bridge reboots or whenever link-up events

occur, such as connecting cables or rebooting network hubs.

Reboot Events will discover both the ports and the devices behind the

ports.

Link-up Events will discover both the ports and the devices behind the ports

for the first link-up event. Subsequent link-up events will only discover the

ports and not the devices behind the ports.

Manual Discovery sets discovery of new devices to only occur after the

user selects the “initiate FC discovery” option from the SCSI to Fibre

Channel Configuration menu. With this option, the ports are discovered,

but the devices behind the ports are not discovered.

Discovery OFF is the same as Manual Discovery except it does not receive

Registered State Change Notification (RSCN) from the fabric and thus

does not initiate discoveries for state changes. Discovery OFF is the default

setting for Discovery Mode.