Modifying Storage Class
Last updated: 2025-11-10 17:33:34
Overview
You can modify the storage class of your object uploaded to COS through the console at any time to meet your business needs in different scenarios. COS offers a range of storage classes, including MAZ_STANDARD / STANDARD, MAZ_STANDARD_IA / STANDARD_IA, MAZ_INTELLIGENT TIERING / INTELLIGENT TIERING, ARCHIVE / ARCHIVE, and DEEP ARCHIVE. For more information, see Overview. The following section will guide you through how to modify the storage class of an object.
Note:
If your objects are in Multi-AZ storage types such as MAZ_STANDARD or MAZ_STANDARD_IA, changing the storage type to non-Multi-AZ types (such as STANDARD_IA or ARCHIVE) is not currently supported.
If an object belongs to archive type (such as ARCHIVE or DEEP_ARCHIVE), it is required to restore to standard type (such as STANDARD) before changing to other storage types. For more information, see Restoring Archived Objects.
Modifying the storage class of objects larger than 5 GB is not supported.
Directions
1. Log in to the COS console.
2. Click Bucket List on the left sidebar.
3. Locate the bucket where the object resides and click the bucket name.
4. Click File List on the left sidebar.
5. Find the target object and click More > Modify Storage Class in the Operation column on the right.
6. To batch modify the storage class of multiple objects, select multiple objects and click More Actions > Modify Storage Class at the top.
7. Select the target storage class and click OK in the pop-up window.
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