storage plan

Notes

• A storage plan's purchase, upgrade, renewal, and unsubscription involve only billing and do not affect normal business operations.

• Storage plans are divided into two types: Mainland China and Hong Kong (China) And Regions Outside The Chinese Mainland, which are shared across all PolarDB clusters in the regions specified for each type.

• If the remaining capacity of the storage plan is insufficient, the overage is billed on a pay-as-you-go basis.

• If your storage plan capacity is insufficient, you can purchase additional storage plans or upgrade your existing storage plan.

• Each Alibaba Cloud account can purchase a maximum of four storage plans.

• After purchasing a storage plan, the usage of offsettable resources is no longer billed hourly. Instead, it is converted into a storage usage amount in GB based on the offset rules for each resource and deducted from the storage plan.

• Usage that exceeds the storage plan capacity is billed on a pay-as-you-go basis.

  For example, you have three PolarDB clusters, each with a storage capacity of 400 GB. These three clusters can share a 1000 GB storage plan, and the excess 200 GB is billed on a pay-as-you-go basis.

Offset rules

A storage plan provides a fixed hourly quota to offset the storage usage of storage space, level-1 backups/data backups, level-2 backups, and log backups, and cold data archiving, for which the Storage Billing Method is pay-as-you-go.

For example, if you purchase a 50 GB storage plan, you receive a fixed quota of 50 GB per hour to offset relevant storage usage during the plan's validity period.

Storage space

Backup storage (level-1/data backups, level-2 backups, and log backups)

Cold data archiving

Offset order

Best practices

• How to estimate the required storage plan specifications

  • If you have not purchased PolarDB cluster, you need to estimate the storage plan specification based on a fixed capacity.

    云原生数据库PolarDB推出了资源包计算器。您可以根据您的业务情况和使用时长预估所需的存储容量，获取所需的存储包的规格建议。

  • If you have already purchased a PolarDB cluster, you need to estimate its required storage plan capacity.

    • System estimation

      In the Storage Plan Capacity Estimator section to the right of PolarDB console > All Cluster Storage Data, you can directly estimate the required storage plan capacity for all PolarDB clusters under your Alibaba Cloud account.

      Note

      • The Total Required Storage Plan Capacity in the Storage Plan Capacity Estimation dialog box does not include storage plans that you have purchased. For example, if you purchased a 100-GB storage plan applicable to the regions in the Chinese mainland, the 333.53 GB calculated in the preceding figure does not take into account the 100-GB storage plan that you have purchased. Therefore, you need to only purchase an additional storage plan of 233.53 GB.

      • Storage Plan Capacity Estimation currently does not support calculating deductions for backup storage of the cluster recycle bin, cold data archiving, or Standard Edition data backups.

    • Manual estimation

      1. View the different types of storage usage of all clusters. For more information, see View database storage usage, View total backup storage size, and View cold data archiving information.

      2. Estimate the required storage plan capacity based on the offset rules for each resource. For more information, see Storage space offset rules, Backup storage offset rules (level-1/data backups, level-2 backups, and log backups), and Cold data archiving offset rules.

• How to choose a combination of storage plans

  There are two methods:

  • The larger the storage plan specification, the greater the discount. We recommend choosing a storage plan specification that is slightly larger than your storage volume.

  • Storage plans can be stacked. You can stack plans to meet requirements for specifications that are not currently supported by a single storage plan. For example, if your storage volume is close to 1,600 GB, you can purchase one 1,000 GB, one 500 GB, and one 100 GB storage plan.

  You can decide how to combine plans based on your actual storage volume and the prices of the storage plans. For example:

  If your business storage volume is close to 99,000 GB, you have several storage plan options (the following prices are for the Chinese mainland region):

  • Option 1: Purchase one 100,000 GB storage plan for CNY 192,000/month.

  • Option 2: Purchase one 90,000 GB and one 9,000 GB storage plan. The price is 173,000 + 20,400 = CNY 193,400/month.

  • Option 3: Purchase one 80,000 GB, one 10,000 GB, and one 9,000 GB storage plan. The price is 154,000 + 21,000 + 20,400 = CNY 195,400/month.

  In this scenario, choosing Option 1 (a 100,000 GB storage plan) is more cost-effective.

Related operations

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