Front LEDs

The following illustration shows LEDs on the front of the solution. By viewing the status of LEDs, you can often identify the source of the error.

Figure 1. SD650-N V3 tray front LEDs

Table 1. Front LEDs
`1` Network board link activity LED (green) on the OSFP module	`6` Identification LED (blue)
`2` Network board link status LED (yellow) on the OSFP module	`7` Drive activity LED (green)
`3` 1 Gb Ethernet port activity LED (green)	`8` Node power button with LED (green)
`4` 1 Gb Ethernet port link LED (green)	`9` 25 Gb Ethernet port link and activity LED (right) (green)
`5` Check log LED (yellow)	`10` 25 Gb Ethernet port link and activity LED (left) (green)

1 Network board link activity LED (green) on the OSFP module: Use these green LEDs to distinguish the link activity of the four ConnectX-7 chip sets on the network board in the GPU node.

For one-processor configuration: from left to right, these LEDs represent ConnectX-7 chip sets 0, 1, 3, and 2.
For two-processor configuration: from left to right, these LEDs represent ConnectX-7 chip sets 1, 0, 3, and 2.

Off: Network is disconnected from switch.
Blinking: The network link is connected and active.

2 Network board link status LED (yellow) on the OSFP module: Use these yellow LEDs to distinguish the link status of the four ConnectX-7 chip sets on the network board in the GPU node.

For one-processor configuration: from left to right, these LEDs represent ConnectX-7 chip sets 0, 1, 3, and 2.
For two-processor configuration: from left to right, these LEDs represent ConnectX-7 chip sets 1, 0, 3, and 2.

Off: Network is disconnected from switch.
On: The network is connected and active.

Note

Using command to light up locating LED is available when transceiver or cable is attached to the OSFP port.

3 1 Gb Ethernet port activity LED (green): Use this green LED to distinguish the network status.

Off: The ConnectX-7 chip sets link is disconnected.
On: The ConnectX-7 chip sets link is established.

4 1 Gb Ethernet port link LED (green): Use this green LED to distinguish the network status.

Off: The network link is disconnected.
On: The network link is established.

5 Check log LED (yellow): When this yellow LED is lit, it indicates that a system error has occurred. Check the XCC event log for additional information.

6 Identification LED (blue): Use this blue LED to visually locate the node among other nodes. This LED is also used as a presence detection button. You can use Lenovo XClarity Administrator to light this LED remotely.

7 Drive activity LED (green): If the LED is lit, it indicates that the drive is powered, but not actively reading or writing data. If the LED is flashing, the drive is being accessed.

8 Node power button with LED (green): Press this button to turn the node on and off manually. The states of the power LED are as follows:

Off: Power is not present or the power supply, or the LED itself has failed.
Flashing rapidly (4 times per second): The node is turned off and is not ready to be turned on. The power button is disabled. This will last approximately 5 to 10 seconds.
Flashing slowly (once per second): The node is turned off and is ready to be turned on. You can press the power button to turn on the node.
On: The node is turned on.

9 10 25 Gb Ethernet port link and activity LED (green): Use this green LED to distinguish the network status.

Off: The network is disconnected.
Blinking: The network is accessing.
On: The network is established.

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