Updated on 2026-01-12 GMT+08:00

Cluster

Instances of the same type have different memory specifications. You can select instances of different specifications based on application scenarios.

This section describes cluster instance specifications. The instance specifications depend on the selected CPU model.

**Table 1** config specifications
CPU Type	Specifications	vCPUs	Memory (GB)	Flavor ID	Default Maximum Number of Connections	Range of Connections
x86	General-purpose	2	4	dds.mongodb.s6.large.2.config	2000	200-2000
x86	Enhanced II	2	4	dds.mongodb.c6.large.2.config
Kunpeng	-	2	4	dds.mongodb.large.arm2.config

**Table 2** shard and dds mongos specifications
vCPUs	Memory (GB)	Default Maximum Number of Connections	Range of Connections
2	4	2000	200-2000
2	8	2000	200-2000
4	8	4000	200-4000
4	16	4000	200-4000
8	16	16000	200-16000
8	32	16000	200-16000
16	32	16000	200-16000
16	64	16000	200-16000
32	64	16000	200-16000
32	128	16000	200-16000
64	128	16000	200-16000
64	256	16000	200-16000

Parent topic: Instance Specifications