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Sharded cluster instance types

Updated at: 2025-02-26 05:49
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This topic describes the instance types of ApsaraDB for MongoDB sharded cluster instances.

Note

  • 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.

  • Some instance types were upgraded on May 14, 2024. If the maximum number of connections to your instance is different from that described in this topic, you can restart the instance. For more information, see [Notice] Increase in the maximum connections to instances of specific specifications.

Instances that use cloud disks
Instances that use local disks

The following database engine versions are supported:

  • MongoDB 7.0

  • MongoDB 6.0

  • MongoDB 5.0

  • MongoDB 4.4

Note

For more information about the maximum IOPS and throughput of different disk types, see ESSDs and ESSD AutoPL disks.

Node type

Instance category

Specifications

Node type

Maximum connections

Maximum IOPS

Maximum I/O throughput (MB/s)

Storage capacity

Mongos

Dedicated instances that use cloud disks

2 cores, 8 GB memory

mdb.shard.4x.large.d

5000

N/A

N/A

N/A

2 cores, 16 GB memory

mdb.shard.8x.large.d

8000

4 cores, 8 GB memory

mdb.shard.2x.xlarge.d

8000

4 cores, 16 GB memory

mdb.shard.4x.xlarge.d

8000

4 cores, 32 GB memory

mdb.shard.8x.xlarge.d

12000

8 cores, 16 GB memory

mdb.shard.2x.2xlarge.d

12000

8 cores, 32 GB memory

mdb.shard.4x.2xlarge.d

16000

8 cores, 64 GB memory

mdb.shard.8x.2xlarge.d

16000

16 cores, 32 GB memory

mdb.shard.2x.4xlarge.d

16000

16 cores, 64 GB memory

mdb.shard.4x.4xlarge.d

32000

16 cores, 128 GB memory

mdb.shard.8x.4xlarge.d

32000

32 cores, 64 GB memory

mdb.shard.2x.8xlarge.d

32000

32 cores, 128 GB memory

mdb.shard.4x.8xlarge.d

96000

32 cores, 256 GB memory

mdb.shard.8x.8xlarge.d

96000

General-purpose instances that use cloud disks

2 cores, 4 GB memory

mdb.shard.2x.large.c

3000

4 cores, 8 GB memory

mdb.shard.2x.xlarge.c

6000

8 cores, 16 GB memory

mdb.shard.2x.2xlarge.c

12000

16 cores, 32 GB memory

mdb.shard.2x.4xlarge.c

16000

32 cores, 64 GB memory

mdb.shard.2x.8xlarge.c

32000

Shard

Dedicated instances that use cloud disks

2 cores, 8 GB memory

mdb.shard.4x.large.d

5000

min{1800 + 50 × storage capacity, 10000, maximum IOPS of the selected disk type}

min{120 + 0.5 × storage capacity, 128, maximum throughput of the selected disk type}

  • PL1 ESSDs: 20 GB to 16,000 GB (a multiple of 10).

  • PL2 ESSDs: 470 GB to 16000 GB (a multiple of 10).

  • PL3 ESSDs: 1270 GB to 16,000 GB (a multiple of 10).

  • ESSD AutoPL disks: 40 GB to 16,000 GB (a multiple of 10).

2 cores, 16 GB memory

mdb.shard.8x.large.d

8000

4 cores, 8 GB memory

mdb.shard.2x.xlarge.d

8000

min{1800 + 50 × storage capacity, 20000, maximum IOPS of the selected disk type}

min{120 + 0.5 × storage capacity, 192, maximum throughput of the selected disk type}

4 cores, 16 GB memory

mdb.shard.4x.xlarge.d

8000

4 cores, 32 GB memory

mdb.shard.8x.xlarge.d

12000

8 cores, 16 GB memory

mdb.shard.2x.2xlarge.d

12000

min{1800 + 50 × storage capacity, 25000, maximum IOPS of the selected disk type}

min{120 + 0.5 × storage capacity, 256, maximum throughput of the selected disk type}

8 cores, 32 GB memory

mdb.shard.4x.2xlarge.d

16000

8 cores, 64 GB memory

mdb.shard.8x.2xlarge.d

16000

16 cores, 32 GB memory

mdb.shard.2x.4xlarge.d

16000

min{1800 + 50 × storage capacity, 40000, maximum IOPS of the selected disk type}

min{120 + 0.5 × storage capacity, 384, maximum throughput of the selected disk type}

16 cores, 64 GB memory

mdb.shard.4x.4xlarge.d

32000

16 cores, 128 GB memory

mdb.shard.8x.4xlarge.d

32000

32 cores, 64 GB memory

mdb.shard.2x.8xlarge.d

32000

min{1800 + 50 × storage capacity, 60000, maximum IOPS of the selected disk type}

min{120 + 0.5 × storage capacity, 640, maximum throughput of the selected disk type}

32 cores, 128 GB memory

mdb.shard.4x.8xlarge.d

96000

32 cores, 256 GB memory

mdb.shard.8x.8xlarge.d

96000

64 cores, 128 GB memory

mdb.shard.2x.16xlarge.d

96000

min{1800 + 50 × storage capacity, 300000, maximum IOPS of the selected disk type}

min{120 + 0.5 × storage capacity, 2048, maximum throughput of the selected disk type}

64 cores, 256 GB memory

mdb.shard.4x.16xlarge.d

128000

64 cores, 512 GB memory

mdb.shard.8x.16xlarge.d

128000

General-purpose instances that use cloud disks

2 cores, 4 GB memory

mdb.shard.2x.large.c

3000

min{1800 + 50 × storage capacity, 10500, maximum IOPS of the selected disk type}

min{120 + 0.5 × storage capacity, 128, maximum throughput of the selected disk type}

2 cores, 8 GB memory

mdb.shard.4x.large.c

3000

4 cores, 8 GB memory

mdb.shard.2x.xlarge.c

6000

min{1800 + 50 × storage capacity, 21000, maximum IOPS of the selected disk type}

min{120 + 0.5 × storage capacity, 192, maximum throughput of the selected disk type}

4 cores, 16 GB memory

mdb.shard.4x.xlarge.c

6000

8 cores, 16 GB memory

mdb.shard.2x.2xlarge.c

12000

min{1800 + 50 × storage capacity, 26250, maximum IOPS of the selected disk type}

min{120 + 0.5 × storage capacity, 256, maximum throughput of the selected disk type}

8 cores, 32 GB memory

mdb.shard.4x.2xlarge.c

16000

16 cores, 32 GB memory

mdb.shard.2x.4xlarge.c

16000

min{1800 + 50 × storage capacity, 42000, maximum IOPS of the selected disk type}

min{120 + 0.5 × storage capacity, 384, maximum throughput of the selected disk type}

16 cores, 64 GB memory

mdb.shard.4x.4xlarge.c

32000

32 cores, 64 GB memory

mdb.shard.2x.8xlarge.c

32000

min{1800 + 50 × storage capacity, 50000, maximum IOPS of the selected disk type}

min{120 + 0.5 × storage capacity, 640, maximum throughput of the selected disk type}

ConfigServer

Dedicated instances that use cloud disks

4 cores, 8 GB memory

mdb.shard.2x.xlarge.d

8000

min{1800 + 50 × storage capacity, 20000, maximum IOPS of the selected disk type}

min{120 + 0.5 × storage capacity, 192, maximum throughput of the selected disk type}

  • PL1 ESSDs: 20 GB to 16,000 GB (a multiple of 10).

  • PL2 ESSDs: 470 GB to 16000 GB (a multiple of 10).

  • PL3 ESSDs: 1270 GB to 16,000 GB (a multiple of 10).

  • ESSD AutoPL disks: 40 GB to 16,000 GB (a multiple of 10).

General-purpose instances that use cloud disks

2 cores, 4 GB memory

mdb.shard.2x.large.c

3000

min{1800 + 50 × storage capacity, 10500, maximum IOPS of the selected disk type}

min{120 + 0.5 × storage capacity, 128, maximum throughput of the selected disk type}

4 cores, 8 GB memory

mdb.shard.2x.xlarge.c

6000

min{1800 + 50 × storage capacity, 21000, maximum IOPS of the selected disk type}

min{120 + 0.5 × storage capacity, 192, maximum throughput of the selected disk type}

The shards of the dedicated instance category that use cloud disks and adopt the following specifications can be deployed only in Singapore Zone A, Zone B, and Zone C: 64 CPU cores and 128 GB of memory, 64 CPU cores and 256 GB of memory, and 64 CPU cores and 512 GB of memory.

You can deploy general-purpose sharded cluster instances that use cloud disks in the following regions and zones:

  • China (Hangzhou): Zone J.

  • China (Shanghai): Zone L and Zone N.

  • China (Beijing): Zone H and Zone K.

  • China (Shenzhen): Zone D.

  • China (Hong Kong): Zone B and Zone C.

  • Singapore: Zone A.

Note

  • If you select the multi-zone deployment mode when you create an instance, make sure that the selected instance type is supported in the specified zones.

  • Disk encryption is not supported by general-purpose sharded cluster instances that use cloud disks.

The following database engine versions are supported:

  • MongoDB 4.2

  • MongoDB 4.0

  • MongoDB 3.4 (discontinued)

Node type

Instance category

Specifications

Node type

Maximum connections

Maximum IOPS

Storage capacity

Mongos

General-purpose instances that use local disks

1 core, 2 GB memory

dds.mongos.mid

1000

N/A

N/A

2 cores, 4 GB memory

dds.mongos.standard

3000

4 cores, 8 GB memory

dds.mongos.large

6000

8 cores, 16 GB memory

dds.mongos.xlarge

9000

8 cores, 32 GB memory

dds.mongos.2xlarge

16000

16 cores, 64 GB memory

dds.mongos.4xlarge

32000

Shard

General-purpose instances that use local disks

1 core, 2 GB memory

dds.shard.mid

8000

8000

10 GB to 2,000 GB (a multiple of 10)

2 cores, 4 GB memory

dds.shard.standard

4 cores, 8 GB memory

dds.shard.large

8 cores, 16 GB memory

dds.shard.xlarge

8 cores, 32 GB memory

dds.shard.2xlarge

16000

14000

16 cores, 64 GB memory

dds.shard.4xlarge

32000

16000

Dedicated instances that use local disks

2 cores, 16 GB memory

dds.shard.sn8.xlarge.3

8000

8000

10 GB to 250 GB (a multiple of 10)

4 cores, 32 GB memory

dds.shard.sn8.2xlarge.3

8000

9000

10 GB to 500 GB (a multiple of 10)

8 cores, 64 GB memory

dds.shard.sn8.4xlarge.3

16000

18000

10 GB to 1,000 GB (a multiple of 10)

16 cores, 128 GB memory

dds.shard.sn8.8xlarge.3

32000

36000

10 GB to 2,000 GB (a multiple of 10)

32 cores, 256 GB memory

dds.shard.sn8.16xlarge.3

64000

72000

10 GB to 3,000 GB (a multiple of 10)

ConfigServer

General-purpose instances that use local disks

1 core, 2 GB memory

dds.cs.mid

8000

8000

20 GB to 1,270 GB (a multiple of 10)

Note

  • For more information about how to select a storage capacity based on the IOPS, see Maximum IOPS for standard SSDs and ESSDs.

  • The storage capacity of a shard component is the storage capacity of each node in the component. For example, if the storage capacity of a shard component is 20 GB, a primary or secondary node has a storage capacity of 20 GB.

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