:original_name: dds_01_0024.html
.. _dds_01_0024:
DB Instance Specifications
==========================
DB instance specifications are listed in the following table.
.. note::
DB instance specifications vary depending on the actual environment.
Cluster
-------
For details about the cluster instance specifications, see :ref:`Table 1 ` and :ref:`Table 2 `.
.. _dds_01_0024__table147993911564:
.. table:: **Table 1** config specifications
=============== =========== ==========================
Number of vCPUs Memory (GB) Max. Number of Connections
=============== =========== ==========================
2 4 1000
=============== =========== ==========================
.. _dds_01_0024__table196721422132317:
.. table:: **Table 2** shard and mongos specifications
=============== =========== ==========================
Number of vCPUs Memory (GB) Max. Number of Connections
=============== =========== ==========================
1 4 400
2 8 400
4 16 1000
8 32 4000
16 64 8000
=============== =========== ==========================
Replica Set
-----------
The supported replica set specifications are the same as those of shard and mongos nodes. For details, see :ref:`Table 2 `.