> For the complete documentation index, see [llms.txt](https://docs.ionos.com/cloud/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.ionos.com/cloud/nodejs/dbaas-mongodb/models/clusterproperties.md).

# ClusterProperties

Properties of a database cluster.

## Properties

| Name                  | Type                                                                             | Description                                                                                                                                                                                                                                                                      | Notes                               |
| --------------------- | -------------------------------------------------------------------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ----------------------------------- |
| **displayName**       | **string**                                                                       | The name of your cluster.                                                                                                                                                                                                                                                        | \[optional] \[default to undefined] |
| **mongoDBVersion**    | **string**                                                                       | The MongoDB version of your cluster.                                                                                                                                                                                                                                             | \[optional] \[default to undefined] |
| **location**          | **string**                                                                       | The physical location where the cluster will be created. This is the location where all your instances will be located. This property is immutable.                                                                                                                              | \[optional] \[default to undefined] |
| **instances**         | **number**                                                                       | The total number of instances in the cluster (one primary and n-1 secondaries).                                                                                                                                                                                                  | \[optional] \[default to undefined] |
| **connections**       | [**Array\<Connection>**](/cloud/nodejs/dbaas-mongodb/models/connection.md)       |                                                                                                                                                                                                                                                                                  | \[optional] \[default to undefined] |
| **maintenanceWindow** | [**MaintenanceWindow**](/cloud/nodejs/dbaas-mongodb/models/maintenancewindow.md) |                                                                                                                                                                                                                                                                                  | \[optional] \[default to undefined] |
| **templateID**        | **string**                                                                       | The unique ID of the template, which specifies the number of cores, storage size, and memory. You cannot downgrade to a smaller template or minor edition (e.g. from business to playground). To get a list of all templates to confirm the changes use the /templates endpoint. | \[optional] \[default to undefined] |
| **connectionString**  | **string**                                                                       | The connection string for your cluster.                                                                                                                                                                                                                                          | \[optional] \[default to undefined] |


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