Use this information for details about the controls, connectors, and LEDs.
The following illustration identifies the buttons, connectors, and LEDs on the control panel.
1 USB 3.2 Gen 1 connector | 6 Drive status LED (yellow) |
2 KVM connector | 7 Power button/LED (green) |
3 Drive activity LED (green) | 8 Identification LED (blue) |
4 Drive status LED (yellow) | 9 Fault LED (yellow) |
5 Drive activity LED (green) | 10 USB management button |
1 USB connector
Connect a USB device to this USB 3.2 Gen 1 connector.
It is best practice to connect a USB device to the front of only one compute node at a time in each Flex System chassis.
2 KVM connector
Connect the KVM cable to this connector (see KVM cable for more information).
It is best practice to connect the KVM cable to only one compute node at a time in each Flex System chassis.
3 5 Drive activity LED (green)
When this LED is flashing, it indicates that the drive is actively reading or writing data.
For all types of drive, this LED is solid on when the drive is powered but not active.
The drive activity LED might be in a different location on the front of the drive, depending on the drive type that is installed.
4 6 Drive status LED (yellow)
7 Power button/LED (green)
When the compute node is connected to power through the Flex System chassis, press this button to turn on or turn off the compute node.
After the compute node is removed from the chassis, press and hold this button to activate the system-board LEDs and light path diagnostics. See the Viewing the light path diagnostics LEDs for more information.
The power LED blink rate slows when the compute node is ready to be turned on.
When the compute node is on, pressing this button causes an orderly shutdown of the compute node so that it can be removed safely from the chassis. This includes shutting down the operating system (if possible) and removing power from the compute node.
8 Identification LED (blue)
The system administrator can remotely light this blue LED to aid in visually locating the compute node. When this LED is lit, the identification LED on the Flex System chassis is also lit. The identification LED can be lit and turned off through the CMM led command, the CMM web interface and the Lenovo XClarity Administrator application (if installed).
There are four states of identification LED:
LED state | Operation required for this state | Description |
Off | This is the default state, no operation required | Compute node is in the normal state. |
Solid On |
|
Compute node is in locally manual operation status. To return LED to Off state, press USB management button again or change state through CMM or Lenovo XClarity Controller. |
Blinking (blink one time per second) | Use CMM or Lenovo XClarity Controller | Compute node is in the locally manual operation status (same
as solid On state). To return LED to Off state, press USB management button again or change state through CMM or Lenovo XClarity Controller. |
Slow blinking (blink one time every two seconds) |
|
Compute node is in the status, where USB port is connected
to the Lenovo XClarity Controller. In this state, you can access the Lenovo XClarity Controller directly via a mobile device connected to the USB connector of the compute node. To return LED to Off state, press USB management button again or change state through CMM or Lenovo XClarity Controller. |
9 Fault LED (yellow)
When this yellow LED is lit, it indicates that a system error has occurred in the compute node. In addition, the fault LED on the chassis system LED panel is lit. You can check the CMM event log and the light path diagnostics LEDs to determine the source of the condition. See Light path diagnostics LEDs for more information about the LEDs on the compute node.
The fault LED turns off only after the error is corrected. When the fault LED turns off, you should also clear the XClarity Controller event log. Use the Setup utility to clear the XClarity Controller event log.
10 USB management button
Press the button and held for 3 seconds;to switch the USB 3.2 Gen 1 port between default mode and Lenovo XClarity Controller management mode.
It is best practice to connect a USB device to the front of only one compute node at a time in each Lenovo Flex System chassis.
When enabling the USB port for system management, do not insert USB 3.2 Gen 1 devices.