3-3
Cisco UCS C460 Server Installation and Service Guide
OL-22326-01z
Chapter 3 Maintaining the Server
Status LEDs and Buttons
Ta b l e 3-1 Front Panel LEDs
LED Name State
Hard drive activity • Off—There is no hard drive in the hard drive sled (no access, no fault).
• Green—The hard drive is ready.
• Green, blinking—The hard drive is reading or writing data.
There are activity LED differences between SATA and SAS hard drives. For SATA
drives, the LED stays off during the reading or writing activity.
• Amber and steady—The hard drive is in fault.
The LED will also turn amber and steady when the locate hard drive function is
used.
• Amber and blinking—The hard drive is in predictive failure.
DVD drive activity • Green and steady—The drive is not accessing data.
• Green and blinking—The drive is accessing data.
Hard drive fault • Off—The hard drive is operating properly.
• Amber—This hard drive has failed.
• Amber, blinking—The device is rebuilding.
Power supply fault • Green—All power supplies are operating properly.
• Off—One or more power supplies are not operating properly.
Memory fault • Green—All DIMMs are operating properly.
• Off—One or more DIMMs are not operating properly.
CPU fault • Green—All CPUs are operating properly.
• Off—One or more CPUs are not operating properly.
Network activity • Off—The Ethernet link is idle.
• Green and blinking —The Ethernet link is active.
• Green and steady—The Ethernet link is detected but not active.
The blink rate gets faster as network activity increases.
Operations panel LEDs See Operations Panel LEDs and Buttons, page 3-4.
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