Question
How do I determine hardware faults based on indicators of a Huawei server?
Answer
Figure 6-1 shows the indicators and buttons on the front panel of a server with eight 2.5-inch drives.
Figure 6-1 Indicators and buttons on the front panel of a server with eight 2.5-inch drives![]()
1
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LOM port connection status indicators (1 to 4 from top to down)
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2
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NMI button
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3
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Fault diagnostic LED
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4
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Health indicator
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5
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UID button/indicator
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6
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Power button/indicator
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Table 6-1 Indicators and buttons on the front panelSilkscreen
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Indicator/Button
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State Description
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Fault diagnostic LED
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Power button/indicator
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Power indicator
- Steady yellow: The server is ready to power on.
- Steady green: The server is properly powered on.
- Blinking yellow: The iBMC is starting.
- Off: The server is not connected to a power source.
Power button
- When the server is powered on, you can press this button to shut down the OS.
- When the server is powered on, you can press and hold this button for 6 seconds to force the server to power off.
- When the server is ready to power on, you can press this button to start the server.
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UID button/indicator
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The UID button/indicator helps identify and locate a server. You can turn on or off the UID indicator by pressing the UID button or remotely using iBMC.
UID indicator
- Steady blue/Blinking blue: The server is being located.
- Off: The server is not being located.
UID button
- You can press this button to turn on or off the UID indicator.
- You can press and hold this button for 4 to 6 seconds to reset the iBMC.
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Health indicator
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- Steady green: The server is operating properly.
- Blinking red at 1 Hz: A major alarm has been generated on the server.
- Blinking red at 5 Hz: A critical alarm has been generated on the server.
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NMI button
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The NMI button triggers a server to generate a non-maskable interrupt. You can press this button or control it remotely on the iBMC web UI.
NOTE: - Use the NMI button only when the OS is abnormal. Do not use this button when the server is operating properly.
- The NMI button is for internal commissioning only. Before using the NMI button, ensure that the OS has an NMI processing program. Otherwise, the OS may crash. Exercise caution when using this button.
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LOM port connection status indicator
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Each indicator shows the status of an Ethernet port on the LOM.
- Steady green: The network port is properly connected.
- Off: The network port is not in use or has failed.
NOTE: - The indicators correspond to the two 10GE and two GE LOM ports.
- The LOM has a standby power supply and is not powered off after the service system is powered off. If the network ports are properly connected to other working network devices, the network ports are still connected and the indicators are on.
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Figure 6-2 shows the indicators on the rear panel of the server.
Figure 6-2 Rear panel indicators![]()
1
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PSU indicator
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2
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UID indicator
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3
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Connection status indicator
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4
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Data transmission status indicator
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5
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Connection status indicator/Data transmission status indicator
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6
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Transmission rate indicator
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7
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Transmission rate indicator
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8
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Connection status indicator/Data transmission status indicator
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Table 6-2 Indicators on the rear panelIndicator
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State Description
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10GE electrical port
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Transmission rate indicator
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- Steady green: The data transmission rate is 10 Gbit/s.
- Steady yellow: The data transmission rate is 1 Gbit/s.
- Off: The network port is not connected.
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Connection status indicator/Data transmission status indicator
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- Steady green: The network port is properly connected.
- Blinking green: Data is being transmitted.
- Off: The network port is not connected.
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10GE optical port
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Connection status indicator/Data transmission status indicator
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- Steady green: The network port is properly connected.
- Blinking green: Data is being transmitted.
- Off: The network port is not connected.
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Transmission rate indicator
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- Steady green: The data transmission rate is 10 Gbit/s.
- Steady yellow: The data transmission rate is lower than 10 Gbit/s.
- Off: The network port is not connected.
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GE electrical port
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Connection status indicator
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- Steady green: The network port is properly connected.
- Off: The network port is not connected.
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Data transmission status indicator
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- Blinking yellow: Data is being transmitted.
- Off: No data is being transmitted.
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UID indicator
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The UID indicator helps identify and locate a server. You can turn on or off the UID indicator by pressing the UID button or remotely running a command on the iBMC CLI.
- Steady blue/Blinking blue: The server is being located.
- Off: The server is not being located.
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PSU indicator
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- Steady green: The power input and output are normal.
- Steady orange: The input is normal, but no power output is supplied due to overheat protection, overcurrent protection, short circuit protection, output overvoltage protection, or failures of some components.
- Blinking green at 1 Hz:
- The input is normal, the server is standby, and the PSU is in MV6 mode. (The output voltage is 6.7 V.)
- The input is overvoltage or undervoltage.
- The PSU is in deep hibernation mode.
- Blinking green at 4 Hz: under online firmware upgrade.
- Off: No AC power is supplied.
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