HP StorageWorks 2/64 - Core Switch Reference Manual page 65

Table 5. 16-Port Card LED Patterns
Location of Purpose
LED of LED
Left of each Port
port, lower Status
LED and
Activity
Operating the Switch
Color of LED Status of Hardware
No light Either the 16-port card does
(LED is off) not have incoming power or
there is no light or signal
carrier detected.
Steady green Port is online (connected to
an external device) but has
no traffic.
Slow-flashing Port is online but
green: segmented, indicating a
on 1 second; loop back cable or an
off 1 second incompatible switch.
Fast-flashing Port is in internal loop back
green: (diagnostic).
on 1/4 second;
off 1/4 second
Flickering Port is online, with traffic
green flowing through port.
Steady yellow Port is receiving light or
signal carrier, but is not yet
online.
Slow-flashing Port is disabled (diagnostic
yellow: tests or
on 2 seconds; command).
off 2 seconds
Fast-flashing Transceiver or port is faulty. Change transceiver or reset
yellow:
on 1/2 second;
off 1/2 second
Alternating Port is bypassed.
green and
yellow
portDisable
Recommended Action
Verify that Power LED is
lit, and check transceiver
and cable.
No action required.
Verify correct device is
connected to port.
No action required.
No action required.
No action required.
Reset port from
workstation.
switch from workstation.
Reset port from
workstation.
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