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Can I Migrate an ECS to Another Region, AZ, or Account? After an ECS is created, it cannot be directly migrated to another region, AZ, or account. To migrate an ECS across accounts or regions, create an image using the ECS and migrate the image to the target accounts or regions. For
How Can I Add ECSs Using Local Disks to an ECS Group? An ECS group logically isolates ECSs. ECSs in the same ECS group support anti-affinity and they are allocated on different hosts. You can add an ECS to an ECS group in either of the following ways: During purchase: When purchasing
What Do I Do If I Selected an Incorrect Image for My ECS? You can change the image for your ECS on the ECS console. Select the target ECS and click Stop in the upper left corner of the ECS list. Locate the row that contains the target ECS, choose More > Manage Image > Change OS in
What Are the Differences Between Using a Public NAT Gateway and Using an EIP for an ECS? Public NAT gateways support both SNAT and DNAT and allow multiple ECSs to share EIPs. An EIP bound to an ECS cannot be used by any other ECSs. If both SNAT and EIP are configured for an ECS, the
How Do I Migrate ECS Data Across Regions Using CSBS? Context A user has an ECS with only one system disk in CN South-Guangzhou. To implement cross-region DR and fast service deployment in a different region, the user needs to create a same ECS with the same data in that region. In
Can I Add Yearly/Monthly ECS Instances to an AS Group? Yes. Currently, AS automatically creates pay-per-use ECS instances by default, but you can also add yearly/monthly or pay-per-use instances manually if needed. Parent topic: Instance
Will the System Bind a New EIP or an Existing One a Newly Added ECS Instance? During scale-out actions, the system automatically buys and assigns an EIP to each newly added instance. Parent topic: Instance
Why Does the NIC Names Change After I Start a Linux ECS? Scenarios After an ECS running CentOS 6 created using a private image starts, the first NIC is named as eth0, rather than eth1. This solution provided in this section involves restarting the ECS. Restarting the ECS will interrupt
Why Is the Space Not Released After I Delete a Large File on a Linux ECS? Symptom The space usage of the root directory on a Linux ECS is too high, for example, 96%, as shown in Figure 1. Figure 1 Too high space usage of the root directory You find that the access_log file generated
What Should I Do If the IP Settings of My Linux ECS Are Lost? Symptom When an ECS has been running continuously for a long time without being restarted, the IP address settings may be lost, ECSs may be disconnected, or the network may break down. Figure 1 Symptom Possible Causes The
How Do I Troubleshoot Slow Connections to a Website Hosted on My ECS? Symptom A complete HTTP request includes domain name resolution, TCP connection establishment, request initiation, processing of the request and returning a processing result by the server, parsing of the HTML code
How Do I Apply for a License for Authenticating Multi-User Sessions and Activate an ECS? Scenarios This section describes how to configure remote desktop services and activate an ECS. The ECS running Windows Server 2012 is used as an example. Procedure Applying for a License for Authenticating
How Do I Attach an Extension NIC to a Windows ECS for Accessing the Internet? Scenarios A Windows ECS has one primary NIC and one extension NIC attached. Both the NICs have an EIP bound to access the Internet. Constraints Do not modify the primary NIC settings. Procedure Log in to
How Do I Restore Data in the Event of a Startup Failure on a Windows ECS? Symptom If logging in to a Windows ECS failed, the system automatically starts the recovery option. However, an error is reported after the recovery option is selected, and the system recovery cannot continue
Why Can't I Open the Start Menu and Search Box on a Windows ECS? Symptom You can log in to the newly created Windows ECS, but the system does not respond when you click Start menu button and the search box. Possible Cause The AppX Deployment Service (AppXSVC) uses too many system
Why Cannot the EIP Bound to the Extension NIC of My ECS Access the Internet? Symptom Your ECS has one primary NIC and one extension NIC in the same subnet. Both the NICs have an EIP bound to access the Internet. The EIP bound to the primary NIC can access the Internet, but that bound
Can I Add Yearly/Monthly ECS Instances to an AS Group? Yes. Currently, AS automatically creates pay-per-use ECS instances by default, but you can also add yearly/monthly or pay-per-use instances manually if needed. Parent topic: Instance
Will the System Bind a New EIP or an Existing One a Newly Added ECS Instance? During scale-out actions, the system automatically buys and assigns an EIP to each newly added instance. Parent topic: Instance
Why Cannot the Total ECS Quota Be Less Than the Number of Existing ECSs? The total ECS quota is the total number of hosts that are authorized to receive detections. When buying SA, ensure that the total ECS quota is greater than or equal to the total number of hosts under the current
[Notice] Adjustment on the EOS Date of Huawei Cloud RDS for MySQL 5.7 Release Date This notice is released on March 27, 2025. EOS Date Adjustment Huawei Cloud adjusted the end-of-service (EOS) date of RDS for MySQL 5.7 to October 31, 2028. Scope All regions Impact You have more time
