Nortel BCM200 Installation And Maintenance Manual page 223

Table 79 Primary/Mirror master hard disk LED description (Sheet 2 of 2)
Primary/Mirror
LED color Description
Orange Channel activity (read/write)
Solid Red Drive not installed or failed
2 Examine the mirror mode Status LED on the BCM400 advanced function tray faceplate.
Alternatively, examine the hard disk cover access panel on the rear of the BCM200. Use
Table 80 to interpret the operational state of the disk mirror function. Perform any associated
maintenance action if required.
Table 80 Status LED description
Status LED
description Description
Solid green Drives are in mirror mode. Data is
identical.
Orange Copy or compare is in progress.
Flashing green Drives may not be identical.
Solid red • Drives are not in mirror mode.
• Missing or bad hard disk (1 or both).
• Occurs on newly installed RAID card
or hard disk (first 10 min). SSM
begins mirror process — no action
required.
• SSM determined BCM is not
initialized (core software, WAN,
MSC).
Chapter 19 System monitoring and troubleshooting
Maintenance action
Normal operation during disk mirror function
— no maintenance required
Immediate action required:
• Check the RAID operational status
• Check hard disk power and data
connections
• Replace the hard disk if required
Maintenance action
Normal operation -— no maintenance
required
Normal operation — no maintenance
required
Indicates a data comparison fault. For 3.5x
version software (and later), the system
automatically adapts for data mismatches
and unequal hard disk capacity. The system
attempts a disk mirror rebuild.
The system continues to operate. Nortel
recommends that you perform the following:
• Examine the status report to determine
which hard disk has the smaller capacity.
• Replace the smaller hard disk (primary
master or mirror master) with a new hard
disk of the correct size. Equipment
provided by Nortel assures correct hard
disk capacity requirements.
Immediate action required:
• Check the RAID operational status.
• Check hard disk power and data
connections.
• Replace the hard disk if required.
• Initialize the BCM system.
BCM200/400 4.0 Installation and Maintenance Guide
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