> For the complete documentation index, see [llms.txt](https://docs.ionos.com/postgres-sdk-java/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/postgres-sdk-java/models/createclusterproperties.md).

# CreateClusterProperties

Properties with all data needed to create a new PostgreSQL cluster.

## Properties

| Name                    | Type                                                                          | Description                                                                                                                                                    | Notes       |
| ----------------------- | ----------------------------------------------------------------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------- | ----------- |
| **postgresVersion**     | **String**                                                                    | The PostgreSQL version of your cluster.                                                                                                                        |             |
| **instances**           | **Integer**                                                                   | The total number of instances in the cluster (one master and n-1 standbys).                                                                                    |             |
| **cores**               | **Integer**                                                                   | The number of CPU cores per instance.                                                                                                                          |             |
| **ram**                 | **Integer**                                                                   | The amount of memory per instance in megabytes. Has to be a multiple of 1024.                                                                                  |             |
| **storageSize**         | **Integer**                                                                   | The amount of storage per instance in megabytes.                                                                                                               |             |
| **storageType**         | [**StorageType**](/postgres-sdk-java/models/storagetype.md)                   |                                                                                                                                                                |             |
| **connections**         | [**List\<Connection>**](/postgres-sdk-java/models/connection.md)              |                                                                                                                                                                |             |
| **location**            | **String**                                                                    | The physical location where the cluster will be created. This will be where all of your instances live. Property cannot be modified after datacenter creation. |             |
| **backupLocation**      | **String**                                                                    | The S3 location where the backups will be stored.                                                                                                              | \[optional] |
| **displayName**         | **String**                                                                    | The friendly name of your cluster.                                                                                                                             |             |
| **maintenanceWindow**   | [**MaintenanceWindow**](/postgres-sdk-java/models/maintenancewindow.md)       |                                                                                                                                                                | \[optional] |
| **credentials**         | [**DBUser**](/postgres-sdk-java/models/dbuser.md)                             |                                                                                                                                                                |             |
| **synchronizationMode** | [**SynchronizationMode**](/postgres-sdk-java/models/synchronizationmode.md)   |                                                                                                                                                                |             |
| **fromBackup**          | [**CreateRestoreRequest**](/postgres-sdk-java/models/createrestorerequest.md) |                                                                                                                                                                | \[optional] |