26462a
Figure 24 Installing an SFP in the upper row of port slot
Diagnostic Tests
In additi
on to POST, Fabric OS includes diagnostic tests to help you troubleshoot the hardware and
firmware.
This includes tests of internal connections and circuitr y, fixed med ia, and the transceivers and
cables in use. The tests are implemented by command, either through a telnet session or through a
console set up to the serial connection to the switch. Some tests require the ports to be connected by
externa
l cables, to allow diagnostics to verify the serializer/deserializer interface, transceiver, and
cable. Some tests require loopback plugs.
Diagnostic tests run at link speeds of 1, 2, 4 and 8 -Gbps.
IMPORTANT:
Diagnostic tests might temporarily lock the transmit and receive speed of the links during diagnostic
testing. For information about specific diagnostic tests, see the
Fabric OS command reference manual
.
8Gb SAN Switch hardware reference manual
55
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