This guide offers solutions for issues such as how to connect to ECS instances, change operating systems, resize cloud disks, upgrade or downgrade the configurations of ECS instances, 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 disk.
  2. Attach a data disk.
  3. Format a data disk for a Linux instance or Format a data disk for a Windows ECS instance.
  4. Create a snapshot to back up data. For more information, see Create a normal snapshot.
  5. If the capacity of an existing cloud disk cannot meet your requirements, resize the disk. For more information, see the following topics:
  6. If a data error occurs on a cloud disk, use a snapshot from a specified point in time to roll back the cloud disk. For more information, see Roll back a disk by using a snapshot.
  7. If you want to restore a cloud disk to its initial status, reinitialize the cloud disk. For more information, see Re-initialize a data disk.
  8. Detach a data disk.
  9. Release a disk.

Create and manage snapshots

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

The following section describes the common scenarios of snapshots:

Create and manage custom images

Only custom images can be managed in the ECS console. You can use a custom image to 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 restore all or some 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 manage an instance RAM role. For more information, see Authorize a RAM user to manage 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 elastic network interface (ENI). Workflow - ENIs
  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 secondary private IP addresses.
  5. Unbind an ENI.
  6. Delete an ENI.

Use tags

You can use tags to manage resources to enhance efficiency. You can perform the following steps to use a tag:
  1. Create or bind a tag.
  2. Search for resources by tag.
  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 use 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 use 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 command.
  3. Run a command.
  4. Query execution results and fix common problems.