This topic describes basic concepts, purchase procedures, billing, common operations, and tutorials to help you get started with Elastic Compute Service (ECS).
ECS is an IaaS offering by Alibaba Cloud and provides high-performance, reliable, and scalable computing capacity in the cloud. ECS eliminates your need to invest in IT hardware up front, so that you can deploy applications efficiently. ECS allows you to scale up and down as your requirements change.
Select an ECS instance type
Billing methods for ECS
You can choose an appropriate billing method based on the ECS resource types. Pay-as-you-go and subscription are the two main billing methods. You can also choose a cost-effective billing method such as preemptible instances and savings plans based on your business needs.
|Pay-as-you-go||A billing method that allows you to use ECS resources and pay for them afterwards.
You are billed based on the resources that you actually used.
Pay-as-you-go is applicable to applications or services that experience traffic spikes, such as temporary scaling or interim testing.
|Subscription||A billing method that allows you to use ECS resources only after you pay for them.
You are billed based on the subscription cycle in the order.
Subscription is applicable to services that run for 24 hours a day and seven days a week, such as web services. You must pay for subscription resources before you can use them.
|Preemptible instances||Preemptible instances are on-demand instances that make use of spare computing resources
and offer some discounts. Prices of preemptible instances fluctuate based on the changes
in supply and demand.
Preemptible instances are ideal for stateless scenarios such as scalable web services, image rendering, big data analytics, and large-scale parallel computing.
|Reserved instances||Reserved instances are independently billed coupons that can be used to offset the
bills of pay-as-you-go instances.
Reserved instances cannot be used independently and must be used together with pay-as-you-go instances.
|Savings plans||A savings plan is a discount plan that allows you to receive billing discounts in
exchange for a commitment to use a consistent amount of resources (measured in USD per hour) over a one-year or three-year period.
Quick start with ECS
ECS console (express version)
- Create and manage an ECS instance by using the ECS console (express version)
If you need only one or two ECS instances, you can create a subscription instance by using the ECS console based on this topic.
- Create and manage an ECS instance by using CLI commands
If you are used to running CLI commands to manage an ECS instance, you can create a subscription instance based on this topic.
Example on how to create and connect to an ECS instance
The following figure demonstrates how to create and connect to an ECS instance by using the ECS console.
Common operations on ECS
|Purchase ECS instances||Create an instance by using the wizard|
|Batch configure sequential names or hostnames for multiple instances||Batch configure sequential names or hostnames for multiple instances|
|Upgrade to a larger instance type with more vCPUs and more memory||Upgrade the instance types of subscription instances|
|Reset the logon password of an ECS instance||Reset the logon password of an instance|
|Release ECS instances||Release an instance|
|Connect to a Windows instance|
|Connect to a Linux instance|
|Resize data disks by extending their capacity||Overview|
|Replace the image or the operating system of an instance|
|Upload files and data from an on-premises computer to ECS instances||Upload files to ECS instances|
|Back up ECS data for data restoration|
|Create an image from an ECS instance and use the image to create more ECS instances|
|Allow access on ports of ECS instances||Add a security group rule|
|Associate an elastic IP address with an ECS instance to access the Internet||Associate an EIP with an instance|
|Categorize and manage ECS resources|
|View the monitoring data of an instance including CPU utilization, memory usage, network bandwidth, and disks usage||View the monitoring information of an instance|
|Build a website on an ECS instance||Summary of website building methods|
If you are familiar with network service protocols and one or more programming languages, we recommend that you use the ECS API to manage your cloud resources and develop your applications. For more information, see Introduction.
You can use OpenAPI to dynamically generate SDK code based on your needs.
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