This topic describes the historical instance types of ApsaraDB for MongoDB instances. Historical instance types are no longer available for new instances. We recommend that you use current instance types.
Standalone instances
Category | Specifications | Instance type | Maximum number of connections | Maximum IOPS |
General-purpose instance | 1 core, 2 GB memory | dds.n2.small.1 | 2,000 | min {30 × Storage capacity, 20,000} |
2 cores, 4 GB memory | dds.sn2.medium.1 | 4,000 | ||
2 cores, 8 GB memory | dds.sn4.large.1 | 6,000 |