Power/System Led Assembly; Ctp Card - IBM TotalStorage SAN140M Installation And Service Manual

Power/system LED assembly

CTP card

6 SAN140M Installation and Service Manual
The bezel at the top front of the director includes an amber system
error light-emitting diode (LED) and a green power LED. These LEDs
are actuated and controlled by a Power/System LED Assembly
which is accessed from the rear of the director.
The power LED lights up when the director is powered on and
operational. If the LED turns off, a facility power source, alternating
current (AC) power cord, or director power distribution failure is
indicated.
The system error LED lights up when the director detects an event
requiring immediate operator attention, such as a FRU failure. The
LED remains illuminated as long as an event is active. The LED turns
off when the Clear System Error Light function is selected from the
Element Manager application. The LED blinks if unit beaconing is
enabled. A lit system error LED (indicating a failure) takes
precedence over unit beaconing.
The director is delivered with two CTP cards. The active CTP card
initializes and configures the director after power on and contains the
microprocessor and associated logic that coordinate director
operation.
The CTP card provides an initial machine load (IML) button and a
RESET button (recessed) on the faceplate.
When the IML button is pressed, held for three seconds, and
released, the director performs an IML that reloads the firmware from
FLASH memory. This operation is not disruptive to Fibre Channel
traffic.
When the RESET button is pressed and held for three seconds, the
director performs a reset. A reset is disruptive and resets the:
• Microprocessor and functional logic for the CTP card and reloads
the firmware from FLASH memory.
• Ethernet LAN interface, causing the connection to the
management server to drop momentarily until the connection
automatically recovers.