Tiered Storage

To help users reduce storage costs, Doris provides flexible options for cold data management.

Cold Data Options	Applicable Conditions	Features
Compute-Storage Separation	Users have the capability to deploy a compute-storage separation setup	- Data is stored as a single replica in object storage - Local caching accelerates hot data access - Independent scaling of storage and compute resources significantly reduces costs
Local Tiering	In the compute-storage integrated mode, users want to further optimize local storage resources	- Supports cooling cold data from SSD to HDD - Fully utilizes the tiered characteristics of local storage to save high-performance storage costs
Remote Tiering	In the compute-storage integrated mode, users want to reduce costs using affordable object storage or HDFS	- Cold data is stored as a single replica in object storage or HDFS - Hot data continues to use local storage - Cannot be combined with local tiering for the same table

With the above options, Doris can flexibly adapt to different deployment scenarios, achieving a balance between query efficiency and storage cost.