This guide offers solutions for scenarios such as how to connect to ECS instances, change operating systems, resize cloud disks, upgrade or downgrade configurations, and use snapshots or images.

Limits

Create and manage ECS instances

Manage the billing method

Improve cost-effectiveness

Create and manage cloud disks

If you want to use a cloud disk as a data disk, you can perform the following steps:
  1. Create a pay-as-you-go disk.
  2. Attach a cloud disk.
  3. Format a data disk for a Linux-based ECS instance or Format a data disk for a Windows-based ECS instance.
  4. Create a snapshot to back up data. For more information, see Create a snapshot.
  5. If the capacity of the existing system disk or data disk cannot meet your requirements, you can resize the system or data disk. For more information, see Extend a disk online and Resize cloud disks offline. If you want to resize the data disk, perform one of the following operations based on your operating system:
  6. If data error occurs on a cloud disk, you can use a snapshot from a specified point in time to roll back the cloud disk. For more information, see Roll back a disk.
  7. If you want to restore a cloud disk to its initial status, you can reinitialize the disk. For more information, see Reinitialize a data disk.
  8. Detach a cloud disk.
  9. Release a cloud disk.

Create and manage snapshots

You can perform the following steps to use a snapshot:
  1. Create a snapshot by using one of the following methods:
  2. View the snapshot size.
  3. Delete unnecessary snapshots to save storage space. For more information, see Reduce snapshot fees.

The common application scenarios for snapshots are as follows:

Create and manage custom images

Only custom images can be managed in the ECS console. You can use a custom image to quickly deploy a business environment. You can use one of the following methods to obtain a custom image.

You can export custom images to back up environments. For more information, see Export custom images.

Create and manage security groups

You can clone a security group across regions and network types to simplify business deployment. For more information, see Clone a security group.

If new security group rules disrupt your online business, you can perform a complete or partial restoration of the security group rules. For more information, see Restore security group rules.

Create and bind instance RAM roles

You can perform the following steps to create and bind an instance RAM role.
  1. Optional. Authorize a RAM user to use an instance RAM role. For more information, see Authorize a RAM user to use an instance RAM role.
  2. Create and bind an instance RAM role. For more information, see Bind an instance RAM role.
  3. Replace the instance RAM role based on your needs. For more information, see Replace an instance RAM role.

Create and manage SSH key pairs

Create and manage ENIs

You can perform the following steps to create and manage an ENI. Workflow - ENI
  1. Create an ENI.
  2. Attach an ENI to an instance or Attach an ENI when you create an instance.
  3. Optional. Configure an ENI.
  4. Assign a secondary private IP address.
  5. Detach an ENI from an instance.
  6. Delete an ENI.

Use tags

You can use tags to manage resources to enhance efficiency. You can perform the following steps to use tags:
  1. Create or bind a tag.
  2. Filter resources by tags.
  3. Delete or unbind a tag.

Create and manage launch templates

Launch templates help you create ECS instances that have the same configurations. You can perform the following steps to create a launch template:
  1. Create a launch template.
  2. Create a template version.
  3. Delete a launch template and a specified template version.

Create and manage deployment sets

Deployment sets help you implement high availability for underlying applications. You can perform the following steps to create and manage a deployment set:
  1. Create a deployment set.
  2. Create an ECS instance in a deployment set.
  3. Change the deployment set of an instance.
  4. Delete a deployment set.

Use Cloud Assistant

Cloud Assistant allows you to send remote commands to ECS instances without the need to configure jump servers. You can perform the following steps to use Cloud Assistant:
  1. Optional. Manually install and configure the Cloud Assistant client on some ECS instances. For more information, see Install the Cloud Assistant client.
  2. Create a script.
  3. Run a script.
  4. View the execution result of a script.