Specifications

Chapter 2. Technical description 17
Fan Module
Two Fan Modules, each containing three fans, provide cooling for the Director FRUs, as well
as redundancy for continued operation if a fan fails.
A Fan Module can be replaced while the Director is powered on and operating. An amber
LED illuminates if one or more fans fail or rotate at insufficient angular velocity.
SBAR assembly
The Director is delivered with two SBAR assemblies. The active SBAR is responsible for Fibre
Channel frame transmission from any Director port to any other Director port. Connections
are established without software intervention. The assembly accepts a connection request
from a port, determines if a connection can be established, and establishes the connection if
the destination port is available. The assembly also stores busy-source connections and error
status for each Director port.
The backup SBAR takes over operation if the active assembly fails and provides the ability to
maintain connectivity and data frame transmission without interruption. Failover to the backup
assembly is transparent to the attached devices.
Each SBAR assembly consists of a card and steel carriage that mounts flush on the
backplane. The carriage provides protection for the back of the card, distributes cooling air
flow, and assists in aligning the assembly during installation. The rear of the carriage contains
a green LED that illuminates if the assembly is operational and active, and an amber LED that
illuminates if the assembly fails. Both LEDs are extinguished on an operational backup
assembly. The amber LED blinks if FRU beaconing is enabled.
Backplane
The backplane provides 48 VDC power distribution and connections for all logic cards.
2.1.5 FICON Director configurations
McDATA FICON Directors can be configured in 4-port increments, and are available in two
different models (see Figure 2-2):
򐂰 Intrepid 6064, which supports a minimum of 24 ports and a maximum of 64 ports
򐂰 Intrepid 6140, which supports a minimum of 64 ports and a maximum of 140 ports
The Intrepid 6040 supports FPM and UPM cards, however, the Intrepid 6140 only supports
UPM cards. All port cards (FPM or UPM) are hot-pluggable.
Attention: A failing Fan Module must be replaced within ten minutes after its removal,
otherwise, internal software will power off the Director.
Important: The backplane is a non-concurrent FRU. The Director must be powered off
prior to FRU removal and replacement.