Sun Microsystems 820-4733-10 service manual Troubleshooting CMCs, Powering Off CMCs

5.1Troubleshooting CMCs

The chassis management controllers (CMCs) have several status LEDs that can provide some troubleshooting assistance. See TABLE 5-1.

TABLE 5-1CMC Status LEDs

Glyph	Name	Color	State and Meaning
	Attention	Amber	On – A fault has been detected.
			Off – Normal operation.
			Flashing – A critical error has happened.
	Ready-to-Remove	Blue	On – CMC is ready to be removed.
			Off – Do not remove the CMC.
			Flashing – No function.
	OK	Green	On – CMC is operating normally.
			Off – No power is being supplied to the CMC.
			Flashing – No function.
N/A	NET MGT Link	Green	On – Link is operating as a 100 Mbps connection.
	(right)		Off – Link is operating as a 10/100 Mbps connection.
			Flashing – No function.
N/A	NET MGT Activity	Amber	On – Link is established.
	(left)		Off – No link established.
			Flashing – Activity on the port.

Additionally, the following commands can help troubleshooting CMCs:

■i2ctest

■clia shmstatus

■clia sensordata

■clia getfruledstate

5.2Powering Off CMCs

So long as standby power is present, the CMCs are on. A CMC can’t be powered off, but it can be deactivated with the clia deactivate command. Deactivating means to stop administration from that CMC.

5-2Sun Datacenter Switch 3456 Service Manual • August 2008