How Can I Recover a Windows ECS with an Abnormal Virtualization Driver?

Background

An error occurs in the virtualization driver on a Windows ECS because of improper running of Tools. To ensure proper ECS running, handle this issue by following the instructions provided in this section.

Symptom

The virtualization driver of an ECS became abnormal and this affected the data security, availability, and performance of the ECS.

The impact of this issue is as follows:

1. The file system may be damaged.

   When you stop or restart such an ECS on the management console, the ECS will be forcibly stopped or restarted due to the lack of the virtualization driver Tools.

2. Services on the ECS may become unavailable

   The affected ECS cannot be hot migrated between physical servers. If the host accommodating such an ECS becomes faulty or the hardware of the host is maintained, the ECS cannot be migrated to another host, affecting service high availability.

3. The network and storage performance of the ECS deteriorates.

   The virtualization driver can improve the ECS network and storage performance. When the virtualization driver becomes abnormal, the network and storage performance will deteriorate.

Scenarios

• Scenario 1

  Tools is not installed on the Windows ECS.

• Scenario 2

  Tools has been uninstalled from the ECS.

Procedure

To install Tools on the Windows ECS, do as follows:

1. Obtain the Tools installation package pvdriver-windows.zip.

   To download the installation package, log in at https://ecs-instance-driver.obs.cn-north-1.myhuaweicloud.com/pvdriver-windows.zip.

2. Decompress the software package and double-click setup.exe to start the installation.
   Figure 1 Installing the virtualization driver
   
3. Click Next and select "I accept the terms in the License Agreement".
4. Click Install to start the installation.
   Figure 2 Installation progress
   
5. Click Finish to complete the installation.
   Figure 3 Installation completed
   
6. Restart the ECS, as shown in Figure 4.
   Figure 4 Determining whether to restart the ECS
   
7. View the virtualization driver status in the bottom right corner of the ECS desktop. The yellow icon indicates that the virtualization driver is running properly.
   Figure 5 Proper running status of the virtualization driver