FW 07.00.00/HAFM SW 08.06.00 McDATA Sphereon 4300 Fabric Switch Installation and Service Manual (620-000171-010, April 2005)

1
General Information
1-5
General Information
Controls, Connectors, and Indicators
Controls, connectors, and indicators for the switch include the:
• Combined initial machine load and reset (IML/RESET) button.
• Ethernet LAN connector.
• Green power (PWR) and amber system error (ERR) light-emitting
diodes (LEDs).
• Green, blue, and amber status LEDs associated with Fibre
Channel ports.
• RS-232 maintenance port.
IML/Reset Button
When the IML/RESET button (Figure 1-2 on page 1-3) is pressed,
held for three seconds, and released, the switch performs an IML that
reloads the firmware from FLASH memory. This operation is not
disruptive to Fibre Channel traffic.
When the IML/RESET button is pressed and held for ten seconds, the
switch performs a reset. After three seconds, the ERR LED blinks at
twice the unit beaoning rate. 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 SANpilot interface
connection to drop momentarily until the connection
automatically recovers.
• Ports, causing all Fibre Channel connections to drop momentarily
until the connections automatically recover. This causes attached
devices to log out and log back in, therefore data frames lost
during switch reset must be retransmitted.
A reset should only be performed if a CTP card failure is indicated.
As a precaution, the IML/RESET button is flush mounted to protect
against inadvertent activation.