1 HV Installation and Operations Guide

Chapter 6 Main Menu 137

Chapter 6

■ Discovery Mode toggles the Discovery Mode among the following

options:

Auto Discovery on Reboot

Discovery on Link Up

Manual Discovery Only

Discovery OFF

Discovery Mode determines how the bridge will discover new FC devices.

— 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 is the default selection. Both the ports and the devices

behind the ports are discovered.

— Link-up Events discovers 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.

Note SCSI devices attached to a Fibre Channel port do not need to be

mapped as sequential FC LUNs. If the device in question supports the

REPORT LUNS command, then any mapping desired by the user is

acceptable. However, if the device does NOT support the REPORT LUNS

command, the discovery process will stop whenever the LUN scan finds

an empty 16-LUN block, starting on a 16-LUN boundary. If such a

block is found, FC Discovery discovers only the LUNs up to the empty

block; LUNs after the empty block are not discovered.

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

the user selects the

[Discovery] option from the Main menu or when a

Registered State Change Notification (RSCN) is received from a fabric.

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 Notifications (RSCN) from the fabric and thus

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

setting for Discovery Mode.

■ FC Port Mode can be set to either Auto Sense (default setting or N_Port

Mode.