ApsaraDB for MyBase provides storage plans to help you reduce the storage costs. You are billed for using storage plans on a subscription basis.

Prerequisites

The database engine of your dedicated cluster is MySQL, SQL Server, or PostgreSQL.

Overview

A storage plan is a subscription-based storage resource plan that can be used to reduce storage costs. It can be used to offset the storage costs of the pay-as-you-go instances that use enhanced SSDs (ESSDs) and are deployed in the same region as the storage plan. You can purchase storage plans for the pay-as-you-go instances that use ESSDs. This is more cost-effective and more flexible in resource usage than the scenarios in which you purchase only pay-as-you-go or subscription instances that use ESSDs.

Scenario

In ApsaraDB for MyBase, if you need to purchase the storage capacities for your database instances that use ESSDs, you can select storage plans when you create the instances.
Note You can purchase storage plans only when you create the database instances that use ESSDs.

Specifications

Storage plans support multiple specifications, including 500 GB, 1 TB, 2 TB, 3 TB, 5 TB, 10 TB, 20 TB, 30 TB, 50 TB, and 100 TB. These storage plans can be used to offset the storage costs of various types of database instances.

Billing methods

The billing method of storage plans is subscription. For more information, see Storage capacity units.

Considerations

If the amount of the used storage exceeds the capacity of your subscription storage plan, you are billed for the additional storage on a pay-as-you-go basis. Assume that you purchase a 1 TB storage plan and have three database instances. In addition, the storage capacities of the instances are 300 GB, 400 GB, and 500 GB. You can use the storage plan to offset 1 TB of the total amount of storage that is used by your database instances. Then, you are billed for the additional 200 GB on a pay-as-you-go basis.

Limits

  • Storage plans can be used to offset the storage costs of only the instances that are deployed in the same region as the storage plan.
  • Storage plans can be used to offset the storage costs of only pay-as-you-go instances.
  • Storage plans can be used to offset the storage costs of some types of instances. They are instances that use enhanced SSDs, standard SSDs, ultra disks, OSS Standard storage, and OSS Archive storage. Storage plans cannot be used to offset the storage costs of local disks.
  • Storage plans cannot be created or managed by calling API operations.
  • Storage plans cannot be downgraded.

Lifecycle management

A storage plan takes effect on the hour when you purchase the plan and expires at 00:00 the day after the expiration date. After the storage plan takes effect, it can offset the storage resources that are used by your pay-as-you-go instances until expiration.

Note For example, if you purchase a storage plan at 09:28 on January 1, 2020, the storage plan takes effect at 09:00 on the day. If the subscription duration of the storage plan is one month, the expiration time is 00:00 on January 31, 2020.

Purchase a storage plan

  1. Log on to the ApsaraDB for MyBase console, and go to the ApsaraDB for MyBase storage plans page.
  2. Configure the following parameters.
    Parameter Description
    Resource bundle type The region in which the storage plan takes effect.
    Resource bundle specifications The specifications of the storage plan.
    Duration of purchase The subscription duration of the storage plan.
  3. Click Buy Now and complete the payment.