Nortel Networks 400 4.0, BCM200 manual Module power and status LED states

218Chapter 19 System monitoring and troubleshooting

All modules have power and status LEDs, as described in Table 77. When the modules are working properly, these LEDs are both solid green.

Table 77 Module power and status LED states

LED
Label	Description	Green LED On	Green LED Flash	Red LED On (Only)	Green LED Off
	Indicates state	OK	N/A	A minimum of 1 PS	N/A
	of system			needs attention
	power.
	Indicates	All monitored	In startup/shutdown	N/A	Not all services are
	condition of	services are	mode		working
	system status	functioning

Some types of modules also have LEDs beside the jacks or for data indicators. Refer to the information on individual modules for a description of the function of these LEDs.

The BCM system status monitor allows you to view the status of the system LEDs on your PC. This status display allows you to make preliminary decisions regarding the type of intervention required without necessarily having to inspect the BCM hardware.

Monitoring standard configuration hard disk status using Element Manager

Use the procedure described in this section to monitor the operational status of systems equipped with the standard hard disk configuration. The standard configuration uses a single hard disk.

The procedures describe monitoring and diagnosis techniques for the standard hard disk configuration.

Note: If you are using the Element Manager system status monitor function, ensure the hard disk monitoring configuration settings are set correctly.

Use the system status monitor from Element Manager to determine the operational status of the hard disk. Alternatively, examine the LED display panel on the front of the base function tray (see “Base function tray system status display LEDs” on page 77).

Note: If the hard disk fails completely in a standard configuration, the system either fails to respond or performs a software shutdown. Replace the hard disk and perform a backup using the backup and restore utility (BRU). See “Using the backup and restore utility” on page 248.

The system status monitor indicator shows hard disk access activity. A flashing green indicator signifies normal disk access activity.

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