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Purchasing and Using an ECS (Old Edition) Scenarios Elastic Cloud Server (ECS) is a cloud server that provides scalable, on-demand computing resources, including vCPUs, memory, OS, and Elastic Volume Service (EVS) disks.
Modifying ECS Specifications (vCPUs and Memory) Modifying Specifications of Individual ECSs Changing a Xen ECS to a KVM ECS (Windows) Automatically Changing a Xen ECS to a KVM ECS (Linux) Manually Changing a Xen ECS to a KVM ECS (Linux) Parent Topic: Instances
Can a Database Be Deployed on an ECS? Yes. You can deploy a database of any type on an ECS. Parent topic: Application Deployment and Software Installation
Can I Change the Region or AZ After an ECS Is Purchased? Sorry, you cannot change the region after the ECS is purchased. During the ECS purchase, you are advised to select the region nearest to your services for lower network latency and quick resource access.
Figure 1 Displayed message (online password reset for an individual ECS used as an example) You can install UniAgent in either of the following ways: Installing UniAgent on the ECS Console: When you intend to perform self-service O&M operations on an individual ECS and a message is
For details about how to create an ECS using a private image, see Purchasing a Custom ECS. Parent topic: Migrating an ECS
During the change process, do not perform operations on the ECS, including its EIP. Constraints The VPC of an ECS can be changed if the ECS has the primary NIC only. The VPC of an ECS cannot be changed if the ECS has an IPv6 NIC added.
For more information about the user data to be injected, see Injecting User Data into ECSs in the Elastic Cloud Server User Guide. Examples Before base64 encoding: Linux #!
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. Services on the ECS may become unavailable The affected ECS cannot be hot migrated between physical servers.
How Can I Stop an ECS from Being Billed?
In the default download path, view the exported ECS information. Parent Topic: Recycle Bin (OBT)
Querying Tags of an ECS Function This API is used to query the tags of a specified ECS. The Tag Management Service (TMS) uses this API to query all tags of an ECS. This API supports checking fine-grained permissions for enterprise projects.
OS-EXT-SRV-ATTR:user_data String Specifies the user data (information after encoding) configured during ECS creation. locked Boolean Specifies whether an ECS is locked. true: The ECS is locked. false: The ECS is not locked. tags Array of strings Specifies ECS tags. os:scheduler_hints
For details about how to obtain the ID, see Obtaining a Project ID. server_id Yes Specifies the ECS ID. Request None Response Table 2 describes the response parameters.
You can also customize the ECS access rules within a security group and between security groups to improve ECS security.
Use the API described in Adding Tags to an ECS in a Batch. Constraints An ECS allows a maximum of 10 tags. This API is idempotent.
For details about how to obtain the ID, see Obtaining a Project ID. server_id Yes Specifies the ECS ID. Request Table 2 Request parameters Parameter Mandatory Type Description volumeAttachment Yes Object Specifies the ECS attachment information.
How Can I Install a GUI on an ECS Running CentOS 7? Scenarios You want to install a GUI on an ECS running CentOS 7 series. Constraints Before installing a GUI on an ECS, ensure that the idle memory is greater than or equal to 2 GB.
What Browser Version Is Required to Remotely Log In to an ECS? When you use a browser to remotely log in to an ECS, ensure that the browser version meets the requirements listed in Table 1.
The ECS is overloaded. If the bandwidth or CPU usage of the ECS is excessively high, login failures may occur. For details, see Checking Whether the ECS Is Overloaded. The ECS has no EIP bound. To log in to an ECS using RDP or MSTSC, ensure that the ECS has an EIP bound.
