Nortel Networks BCM200/400 - Manual (Page 223)

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BCM200/400 4.0 Installation and Maintenance Guide
Chapter 19
System monitoring and troubleshooting
This chapter describes monitoring and troubleshooting options to determine the operational status
of, or cause of malfunctions in, the BCM hardware.
This section describes the following troubleshooting topics and issues:
• “System status display LEDs” on page 224
• “Resolving alarm conditions” on page 225
• “Monitoring media bay module LEDs” on page 226
• “Monitoring the RAID LEDs” on page 228
• “RAID disk mirroring” on page 230
• “Monitoring or configuring disk mirror settings using Element Manager” on page 230
• “BCM system does not function” on page 235
• “Emergency telephone does not function” on page 235
• “ATA2 does not function” on page 235
Use Element Manager, or remote access interfaces, in conjunction with the faceplate LEDs to
determine the operational state of the system hardware components.
Hardware problems are indicated by the following:
• The LEDs on the BCM base function tray, advanced function tray (RAID upgrade), or the
media bay modules (MBMs) do not display normal operational status.
• The BCM system does not function at all.
• The emergency telephone does not function.
• The ATA2 does not function.
Danger: Electrical shock warning.
Disconnect the power cord, telephone cables, and network cables before opening the main
unit. Read and follow installation instructions carefully.
Warning: Protect the hardware components against damage from electrostatic discharge.
Always wear a grounded wrist strap before you handle components. Always place the
components in a static-free container.