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

# PatchClusterProperties

Properties of the payload to change a cluster.

## Properties

| Name                    | Type                                                                      | Description                                                                   | Notes       |
| ----------------------- | ------------------------------------------------------------------------- | ----------------------------------------------------------------------------- | ----------- |
| **cores**               | **int**                                                                   | The number of CPU cores per instance.                                         | \[optional] |
| **ram**                 | **int**                                                                   | The amount of memory per instance in megabytes. Has to be a multiple of 1024. | \[optional] |
| **storage\_size**       | **int**                                                                   | The amount of storage per instance in megabytes.                              | \[optional] |
| **connections**         | [**list\[Connection\]**](/postgres-sdk-python/models/connection.md)       |                                                                               | \[optional] |
| **display\_name**       | **str**                                                                   | The friendly name of your cluster.                                            | \[optional] |
| **maintenance\_window** | [**MaintenanceWindow**](/postgres-sdk-python/models/maintenancewindow.md) |                                                                               | \[optional] |
| **postgres\_version**   | **str**                                                                   | The PostgreSQL version of your cluster.                                       | \[optional] |
| **instances**           | **int**                                                                   | The total number of instances in the cluster (one master and n-1 standbys).   | \[optional] |


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