LED Name

States

1

SAS

SAS/SATA drive fault

• Off—The hard drive is operating properly.

• Amber—Drive fault detected.

• Amber, blinking—The device is rebuilding.

• Amber, blinking with one-second interval—Drive locate function activated in the software.

2

SAS

SAS/SATA drive activity LED

• Off—There is no hard drive in the hard drive tray (no access, no fault).

• Green—The hard drive is ready.

• Green, blinking—The hard drive is reading or writing data.

1

NVMe

NVMe SSD drive fault

• Off—The drive is not in use and can be safely removed.

• Green—The drive is in use and functioning properly.

• Green, blinking—The driver is initializing following insertion or the driver is unloading following an eject command.

• Amber—The drive has failed.

• Amber, blinking—Drive locate function activated in the software.

2

NVMe

NVMe SSD activity

• Off—No drive activity.

• Green, blinking—There is drive activity.

3

Power button or LED

• Off—There is no AC power to the server.

• Amber—The server is in standby power mode. Power is supplied only to the Cisco Integrated Management Controller (Cisco IMC) and some motherboard functions.

• Green—The server is in main power mode. Power is supplied to all server components.

4

Unit identification

• Off—The unit identification function is not in use.

• Blue, blinking—The unit identification function is activated.

5

System health

• Green—The server is running in normal operating condition.

• Green, blinking—The server is performing system initialization and memory check.

• Amber, steady—The server is in a degraded operational state (minor fault). For example:

  • Power supply redundancy is lost.

  • CPUs are mismatched.

  • At least one CPU is faulty.

  • At least one dual in-line memory module (DIMM) is faulty.

  • At least one drive in a RAID configuration failed.

• Amber, 2 blinks—There is a major fault with the system board.

• Amber, 3 blinks—There is a major fault with the DIMMs.

• Amber, 4 blinks—There is a major fault with the CPUs.

6

Power supply status

• Green—All power supplies are operating normally.

• Amber, steady—One or more power supplies are in a degraded operational state.

• Amber, blinking—One or more power supplies are in a critical fault state.

7

Fan status

• Green—All fan modules are operating properly.

• Amber, blinking—One or more fan modules breached the non-recoverable threshold.

8

Network link activity

• Off—The Ethernet Lights Out Management (LOM) port link is idle.

• Green—One or more Ethernet LOM ports are link-active, but there is no activity.

• Green, blinking—One or more Ethernet LOM ports are link-active, with activity.

9

Temperature status

• Green—The server is operating at normal temperature.

• Amber, steady—One or more temperature sensors breached the critical threshold.

• Amber, blinking—One or more temperature sensors breached the non-recoverable threshold.

LED Name

States

1

1-Gb or 10-Gb Ethernet link speed (on both LAN1 and LAN2)

• Off—Link speed is 100 Mbps.

• Amber—Link speed is 1 Gbps.

• Green—Link speed is 10 Gbps.

2

1-Gb or 10-Gb Ethernet link status (on both LAN1 and LAN2)

• Off—No link is present.

• Green—Link is active.

• Green, blinking—Traffic is present on the active link.

3

1-Gb Ethernet dedicated management link speed

• Off—Link speed is 10 Mbps.

• Amber—Link speed is 100 Mbps.

• Green—Link speed is 1 Gbps.

4

1-Gb Ethernet dedicated management link status

• Off—No link is present.

• Green—Link is active.

• Green, blinking—Traffic is present on the active link.

5

Rear unit identification

• Off—The unit identification function is not in use.

• Blue, blinking—The unit identification function is activated.

6

Power supply status (one LED for each power supply unit)

AC power supplies:

• Off—No AC input (12 V main power off, 12 V standby power off).

• Green, blinking—12 V main power off; 12 V standby power on.

• Green, solid—12 V main power on; 12 V standby power on.

• Amber, blinking—Warning threshold detected, but 12 V main power on.

• Amber, solid—Critical error detected; 12 V main power off (for example, over-current, over-voltage, or over-temperature failure).

DC power supplies:

• Off—No DC input (12 V main power off, 12 V standby power off).

• Green, blinking—12 V main power off; 12 V standby power on.

• Green, solid—12 V main power on; 12 V standby power on.

• Amber, blinking—Warning threshold detected, but 12 V main power on.

• Amber, solid—Critical error detected; 12 V main power off (for example, over-current, over-voltage, or over-temperature failure).

1

Fan module fault LEDs (one behind each fan connector on the motherboard)

• Amber—Fan has a fault or is not fully seated.

• Green—Fan is OK.

3

DIMM fault LEDs (one behind each DIMM socket on the motherboard)

These LEDs operate only when the server is in standby power mode.

• Amber—DIMM has a fault.

• Off—DIMM is OK.

2

CPU fault LEDs (one behind each CPU socket on the motherboard).

These LEDs operate only when the server is in standby power mode.

• Amber—CPU has a fault.

• Off—CPU is OK.

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