This topic describes the unavailable instance types of ApsaraDB for MongoDB instances. Unavailable 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 |