MaxCompute allows you to reduce storage costs by setting a storage tier for tables or partitions. The Tiered Storage Config Optimization feature analyzes the last access time of tables and partitions to identify potential cost savings in the current region. Based on a default or custom policy, it estimates potential savings and provides recommendations to optimize your storage tier policy.
How it works
MaxCompute uses the last access time of tables or partitions to recommend storage tier changes based on either the default optimization policy or a custom policy. The default policy recommends moving data from standard storage to infrequent access (IA) storage if it remains unaccessed for 30 days, and from standard or IA storage to long-term storage if it remains unaccessed for 180 days. Based on these rules and the storage fees, MaxCompute estimates potential storage cost savings at the list price.
Supported regions
This feature is available in the following regions: 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).
Usage notes
This feature shows storage sizes for tables and partitions only. These sizes do not include storage used by recycle bins, resources, or temporary files. Therefore, the displayed statistics may differ from the values on your bill.
The feature provides estimates only for transitions from standard to IA or long-term storage, and from IA to long-term storage. It does not estimate reverse transitions, such as from long-term to standard or IA storage, or from IA to standard storage.
The cost savings estimated by the default optimization policy assume that data in infrequent access (IA) or long-term storage remains unaccessed. Accessing data in these tiers incurs additional access fees. Carefully evaluate your access patterns before you apply the optimizations.
Procedure
Using the default policy
Navigate to 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, choose to open the Tiered Storage Config Optimization page.
Review the Overview of Storage Cost Optimization.
This section shows the estimated storage cost changes after applying the default optimization policy. It also ranks projects by potential cost savings, from highest to lowest, helping you quickly identify projects with the greatest optimization opportunities.
Review the project-level Storage Cost Optimization Details::
The estimated change in storage costs for the project after applying the default optimization policy.
A list of tables and partitions that can be optimized, showing their Name, Storage size, Last access time, Current storage tier, Recommended storage tier, and Estimated cost savings. The page does not display tables or partitions with estimated savings of less than USD 0.000001.
To apply the changes, configure the storage tier. For more information, see Storage resources - storage tier.
Using a custom policy
Navigate to 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, choose to open the Tiered Storage Config Optimization page.
Estimate costs with a custom policy.
Set Optimization Evaluation Policy to Custom Policy.
Select the project to evaluate.
Enter the storage tier transition policy to evaluate.
Click Estimate Cost Change and wait for the estimation to complete.
Review the project-level Storage Cost Optimization Details::
The estimated changes in storage and access costs for the project after applying the custom policy.
A list of tables and partitions expected to have storage tier changes, showing their Name, Storage size, Last access time, Access volume in last 30 days, Current storage tier, Target storage tier, Estimated storage cost change, Estimated access cost change, and Total cost change. The page does not display tables or partitions with estimated savings of less than USD 0.000001.
To apply the changes, configure the storage tier. For more information, see Storage resources - storage tier.