Smc Service Led States; Smc Busy Led States - Cisco ASR 5000 Series Installation Manual

Applying Power and Verifying the Installation

SMC Service LED States

The Service LEDs on the SMCs indicate that the system requires maintenance or service. Examples are that the system
could not locate a a valid software image at boot-up, or that a high temperature condition exists.
This LED is off during normal operation.
The possible states for this LED are described in the following table. Use the troubleshooting information in the table to
diagnose the problem.
Table 54. SMC Service LED States
Color Description
Yellow System requires maintenance (fan filter, temperature
warning, PFU outage etc.)
None Card is not receiving power

SMC Busy LED States

The Busy LEDs on the SMCs indicate that there is activity on one of their memory devices:
 CompactFlash module
 PCMCIA device
 Nand Flash (used to store SMC firmware)
 Hard drive
The possible states for this LED are described in the following table. If the LED is not green, use the troubleshooting
information in the table to diagnose the problem.
Table 55. SMC Busy LED States
Color Description
Green/ Data is being read from or
Blinking Green written to one of the memory
devices.
None The memory devices are not in
use.
Troubleshooting
Refer to the appropriate section of this guide for
troubleshooting information.
No maintenance needed.
Troubleshooting
No maintenance needed.
NOTE: If you are removing an SMC from the chassis, it is
recommended that you wait until this LED is off to ensure the integrity
of all data being transferred to or from the memory device.
No maintenance needed.
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