Lite Server Node Fault Diagnosis

Scenario

Lite Server task center provides one-click fault diagnosis, including parameter plane network diagnosis and Ascend software diagnosis. You can quickly diagnose the network and Ascend software on Lite Server without learning about specific diagnosis commands. The parameter plane network diagnosis allows you to query the network status, IP address, and subnet mask of the PU. The Ascend software diagnosis allows you to diagnose the driver firmware version compatibility. You can batch start diagnosis tasks on multiple servers at the same time, improving efficiency to a large extent.

Constraints

• Currently, only Ascend Snt9b and Ascend Snt9b23 nodes are supported.
• The NodeTaskHub plug-in is required for the node where the task is to be created. Ensure that the plug-in is installed before task creation. For details, see Managing Lite Server AI Plug-ins.
• Only one diagnosis task can be executed on a node at the same time. The task cannot be interrupted once started. Plan the task priority.
• Ensure that no services are running on the nodes you are going to diagnose. Running commands during diagnosis can cause service interruptions or errors.
• Install the MCU, driver, and firmware for Ascend HDK 23.0.0 or later before starting the diagnosis. A preconfigured OS is already installed. If you use a custom OS, ensure that the software has been installed correctly.
• The diagnosis requires the Ascend-docker-runtime development kit. This software is pre-installed on the default OS. If you use a custom OS, ensure the software has been installed correctly.

Procedure

1. Log in to the ModelArts console.
2. In the navigation pane on the left, choose Lite Servers under Resource Management. On the displayed page, click the Task Center tab.
   Figure 1 Task center
   

3. Click Create Task in the upper left corner. On the displayed Job Templates page, locate Ascend Fault Diagnosis, and click Create Task.
   Figure 2 Task templates
   

4. On the Ascend Fault Diagnosis page, enter the task name and description. Set server model and type, select a diagnosis item, select the notice, and click Create now.

   Table 1 Parameters for creating a task

   Parameter	Description
   Name	The system automatically enters the name of the pressure test task. You can customize the task name.
   Description	Enter the task description for quick search.
   Server Model	Only Ascend Snt9b and Ascend Snt9b23 are supported.
   Type	You can select Single node or Integrated rack, or search for a specific node by keyword.
   Diagnosis Item	You can select Parameter Plane Network Diagnosis, Ascend Device Diagnosis, or both. Parameter Plane Network Diagnosis: Check and record parameter-plane network metrics and information. Ascend Device Diagnosis: Check the health and compatibility of Ascend software and chip metrics.

5. View the task execution status in the Task Center tab.
   Figure 3 Viewing the task status
   

6. Click the task name to access its details page, where you can view the task details.
   Figure 4 Checking the task details
   

7. On the task details page, locate the target node and click View Logs in the Operation column. In the displayed window on the right, view the detailed log about task execution.
   Figure 5 Viewing logs