MaxCompute allows you to configure storage tiers for tables or partitions to optimize costs. It offers a feature for tiered storage configuration optimization, which assesses potential for cost reduction in the current region, based on either the default or a custom policy, by analyzing the recent access times of tables. This helps you set up tiered storage policies more effectively.
How it works
MaxCompute determines whether the storage tier of a table or partition can be changed from standard storage to infrequent access (IA) or long-term storage based on the default or custom optimization policy and the last access time of the table or partition. The default optimization policy recommends that you change the standard storage tier of a table or partition that is not accessed in the previous 30 days to the IA storage tier and change the standard or IA storage tier of a table or partition that is not accessed in the previous 180 days to the long-term storage tier. You can estimate the storage cost savings (catalog price) after the storage tier is changed based on the description in Storage fees.
Regions
This feature is available in multiple regions, including China (Hangzhou), China (Shanghai), China (Beijing), China (Shenzhen), China (Chengdu), China (Zhangjiakou), China (Ulanqab), China (Hong Kong), Japan (Tokyo), Singapore, Malaysia (Kuala Lumpur), Indonesia (Jakarta), and Germany (Frankfurt).
Precautions
The feature only considers the storage sizes of tables or partitions. The calculated values may differ from your bill, as it does not account for the storage sizes of other objects, such as recycle bins, resources, and temporary files.
Estimations are provided only for storage tier changes from standard to IA or long-term storage, and from IA to long-term storage. Changes from long-term to standard or IA storage, or from IA to standard storage, are not estimated.
The cost savings of the default policy assume that IA or long-term storage will not be accessed. Accessing these storage tiers incurs additional fees. We recommend that you optimize the storage costs after accurate estimation.
Procedure
Default Policy
Access the Tiered Storage Config Optimization page.
Log on to the MaxCompute console and select a region in the upper-left corner.
In the left-side navigation pane, select to access the Tiered Storage Config Optimization page.
View information in the Overview of Storage Cost Optimization section.
In this section, you can view the estimated storage cost savings after the storage tier is changed based on the default optimization policy and the projects in descending order based on the estimated cost savings. This way, you can quickly identify the project with the largest cost reduction potential.
View the following information of a specific project in the Storage Cost Optimization Details section:
The estimated storage cost savings of the project after the storage tier is changed based on the default optimization policy.
The name, storage capacity, last access time, current storage tier, recommended storage tier, and estimated cost savings of a table or partition that can be optimized. Tables or partitions whose estimated cost savings are less than CNY 0.000001 are not displayed.
Configure storage tiers. For more information, see Configure storage tiers for storage resources.
Custom Policy
Access the Tiered Storage Config Optimization page.
Log on to the MaxCompute console and select a region in the upper-left corner.
In the left-side navigation pane, select to access the Tiered Storage Config Optimization page.
Initiate a custom policy cost estimation.
Select Optimization as Custom Policy.
Choose the project you want to evaluate.
Enter the tiered storage transformation policy you want to evaluate.
Click Estimate Cost Change and wait for the estimation to complete.
View the project-level Storage Cost Optimization Details. You can see:
The estimated changes in storage and access costs for the project after the storage tier change based on the custom policy.
Details such as the Table Name, Partition Name, Storage Size, Last Access Time, Access Volume in Last 30 Days, Current Type, Expected Storage Type, Estimated Storage Cost Change/Month, Estimated Access Cost Change/Month, and Total Cost Change/Month. Tables or partitions with estimated cost changes less than CNY 0.000001 are not shown.
Configure tiered storage. For more information, see Configure storage tiers for storage resources.