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5 – Managing I/O Blades
Displaying Hardware Status
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The Fibre Channel ports are numbered based on the I/O blade identity. For
example, ports on I/O blade IO0 are always numbered 0–15; IO1 ports are always
numbered 16–31, and so on up to a maximum of 127. Fibre Channel ports can
also be identified by I/O blade and port number. For example, port 0 is also known
as IO0-0.
I/O Blade Good LED (Green) — indicates the I/O blade is operational
I/O Blade Fault LED (Amber) — indicates the I/O blade has a fatal error. This
LED and the Chassis Fault LED illuminate together.
I/O Blade Beacon LED (White) — illuminates in response to a command
issued from the management workstation to help locate an I/O blade
I/O Blade Power LED (Green) — indicates that the I/O blade is receiving
power.
I/O Blade Error Code LED (Green) — indicates an error code
I/O Blade Hotswap LED (Blue) — indicates the I/O blade insertion status. A
flashing LED indicates that the I/O blade is not fully seated or that the latch
has just been moved from closed to open, or open to closed. Continuous
illumination indicates that I/O traffic has ceased and the I/O blade can be
removed.
FC Port LEDs:
Logged-in LED (Green) — indicates the logged-in or initialization
status of the connected devices. After successful completion of the
POST, the switch extinguishes all Logged-In LEDs. Following a
successful loop initialization or port login, the switch illuminates the
corresponding Logged-In LED. This shows that the port is properly
connected and able to communicate with its attached devices. The
Logged-In LED remains illuminated as long as the port is initialized or
logged in. If the port connection is broken or an error occurs that
disables the port, the color changes to gray.
Activity LED (Green) — indicates that data is passing through the port.
Each frame that the port transmits or receives causes this LED to
illuminate for 50 milliseconds. This makes it possible to observe the
transmission of a single frame. When extending credits, the Activity
LED for a donor port will reflect the traffic of the recipient port.