Create an instance

You can create a t5 instance by referring to Create an instance by using the wizard. When creating a t5 instance, consider the following settings:

  • Region: t5 instances are unavailable in such regions as China North 3, Asia Pacific NE 1 (Tokyo), US East 1 (Virginia), and Middle East 1 (Dubai). For the detailed zones in other regions that support t5 instances, see the ECS instance creation page.

  • Network type: Only VPC is supported.

  • Image: 512 MiB is the minimum memory size for a t5 instance, and you can select only the Linux or Windows Server 1709 operating system. Operating systems that require a minimum memory of 1 GiB, such as Windows Server 2016, are not supported. For more information about selecting images, see How to select a system image.

  • No performance constraints mode: Select the Enable Unlimited Mode for T5 Instances check box to create a t5 instance without performance constraints. You can convert the mode after creating a t5 instance.

Change the t5 instance type

Within the lifecycle of an instance, you can do the following to convert a t5 instance into one without performance constraints or into a standard instance in real time.

  1. Log on to the ECS console.
  2. In the left-side navigation pane, click Instances.
  3. Select a region.
  4. In the list of instances, find the instance, and click the instance ID.
  5. In the Basic Information part of the Instance details page, click More, then select Switch credit specification mode from the drop-down list.

You can also change the type of a t5 instance through the API ModifyInstanceAttribute.

View CPU utilization and CPU credits

In the ECS console, you can view the CPU information about an instance such as CPU utilization, consumed CPU credits, accrued CPU credits, excess CPU credits, and advance CPU credits.

  1. Log on to the ECS console.
  2. In the left-side navigation pane, click Instances.
  3. Select a region.
  4. In the instance list, find the target instance. Then click the instance ID or click Manage in the Actions column.
  5. View the metrics in the Monitoring Information area of Instance Details page.
You can also view the CPU usage after connecting to the instance remotely:

Change the instance type

In the ECS console, if you find that the CPU usage remains at the baseline performance level for a long period of time or rarely exceeds the baseline level, your instance type may not meet your needs or may exceed your needs. In either case, you may consider changing the instance type.

You can change the instance type based on the billing method:

For the target instance type families, see Instance type families that support upgrading instance types.