This topic describes the available instance types of ApsaraDB for MongoDB standalone instances.
The supported memory capacity includes the memory that is occupied by the management services in ApsaraDB for MongoDB, the database service, and the underlying operating system (such as the BIOS, the kernel of the operating system, and the hypervisor). Therefore, the available memory may be less than the memory capacity that is supported by the instance type.
Database engine version | Instance category | Specifications | Instance type | Maximum number of connections | Maximum IOPS | Maximum I/O throughput (MB/s) | Storage capacity (GB) |
| General-purpose instances that use cloud disks | 4 cores, 8 GB memory | dds.sn2.large.1 | 6000 | min{30 × Storage capacity, 20,000} | min{120 + 0.5 × Storage capacity, 192} | 20 GB to 2,000 GB (a multiple of 10) |
4 cores, 16 GB memory | dds.sn4.xlarge.1 | 8000 | |||||
8 cores, 16 GB memory | dds.sn2.xlarge.1 | 8000 | min{120 + 0.5 × Storage capacity, 256} | ||||
8 cores, 32 GB memory | dds.sn4.2xlarge.1 | 10000 Note For information about how to test the connectivity of standalone instances, see Test the connectivity of a standalone instance. |