Falcon 24 Dual Fibre Installation and Hardware Reference Manual
4.3 Fibre Channels
4.3.1 Onboard Hub Settings
The FALCON subsystem comes with embedded hub on their host I/O
modules. Channel bus and access routes configurations with different DIP
switch settings are diagrammed below. The onboard hub helps avoid system
down time caused by a single path failure.
4.3.2 Jumper Assignments
Figure 4
-
1: Location of the Onboard Hub Pin
•
UP:
hub enabled
•
Down:
hub disabled
Pin-4 on the DIP switch located on the upper left corner of the FALCON
subsystem rear panel controls the following:
DIP Switch Configurations and Host Port Connectivity:
•
Up
:
The host channels of the partner controllers are connected
together from the partner controllers, through a common
backplane, host I/O modules, and to the host SFP ports.
Every host I/O port connects to both of the RAID controllers.
Figure 4
-
2: FALCON-R2224 - Channel Buses When Hub is Enabled
4-6
Fibre Channels