Chapter 3 Subsystem Monitoring
3.2.9
FC Ports LEDs
Figure 3-8: LEDs on FC Ports (SFP Cages)
Each FC port on the host I/O modules has two (2) green LEDs. The LED on the left
is left undefined while the LED on the right indicates Fibre Channel link status. (See
Figure 3-8
)
Green
Status
Link Activity
Green
ON
indicates the FC link is okay.
OFF
indicates the FC link is broken.
Table 3-9: FC Port LED Definitions
3.3. Audible Alarm
Different controller environmental and operational parameters (such as temperature,
etc.) have been assigned a range of values between which they can fluctuate. If either
the upper or lower thresholds are exceeded, an audible alarm will automatically be
triggered. The alarm will also be triggered when an active component of the
subsystem fails. If the subsystem manager is onsite and is alerted by the alarm, the
manager needs to read the error message on the LCD screen or on the PC terminal to
determine what has triggered the alarm and then take appropriate actions to rectify
the problem.
WARNING!
Whenever an alarm is triggered, you must determine the problem. If the audible
alarm is ignored or not taken seriously and the problem is not rectified, permanent
damage to the system can result.
Audible Alarm
3-9
