User`s guide

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5: Troubleshooting
Using Storage System LEDs for Troubleshooting
This section summarizes LED functions and gives instructions for solving storage system
problems in these subsections:
• “ESI/Ops Panel LEDs and Switches” on page 79
• “Power Supply/Cooling Module LEDs” on page 84
• “RAID LRC I/O Module LEDs” on page 85
• “RAID Loopback LRC I/O Module LEDs” on page 89
• “Drive Carrier Module LEDs” on page 90