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ApsaraDB RDS:Specifications for DuckDB-based analytical primary instances

Last Updated:Dec 05, 2025

This topic describes the specifications for RDS DuckDB-based analytical primary instances, including their compute resources and storage capacity. A single instance supports up to 128 TB of storage.

RDS DuckDB-based analytical primary instances

Edition

Family

Specification code

CPU and memory

Default maximum connections

Maximum IOPS

Storage space

Cluster Edition

Dedicated

myduck.x2.large.xc

4 cores 8 GB

6000

20,000

20 GB to 128,000 GB

myduck.x4.large.xc

4 cores 16 GB

8000

myduck.x8.large.xc

4 cores 32 GB

12,000

myduck.x2.xlarge.xc

8 cores 16 GB

12,000

25,000

myduck.x4.xlarge.xc

8 cores 32 GB

12,000

myduck.x8.xlarge.xc

8 cores 64 GB

16,000

myduck.x2.2xlarge.xc

16 cores 32 GB

16,000

40,000

myduck.x4.2xlarge.xc

16 cores 64 GB

20,000

myduck.x8.2xlarge.xc

16 cores 128 GB

32,000

myduck.x2.4xlarge.xc

32 cores 64 GB

32,000

60,000

myduck.x4.4xlarge.xc

32 cores 128 GB

40,000

myduck.x8.4xlarge.xc

32 cores 256 GB

64,000

myduck.x2.8xlarge.xc

64 cores 128 GB

64,000

120,000

myduck.x4.8xlarge.xc

64 cores 256 GB

80,000

150,000

myduck.x8.8xlarge.xc

64 cores 512 GB

128,000

150,000

References