# Modify Cluster Attributes

Once the PostgreSQL cluster is up and running, you can customize several attributes.

## Quick Links

<table data-view="cards"><thead><tr><th></th><th></th><th data-hidden data-card-target data-type="content-ref"></th></tr></thead><tbody><tr><td><mark style="color:blue;"><strong>Rename a PostgreSQL Cluster</strong></mark></td><td>Learn how to rename your PostgreSQL cluster.</td><td><a href="/pages/fCwrPKxe72i2CBaeL7cY">/pages/fCwrPKxe72i2CBaeL7cY</a></td></tr><tr><td><mark style="color:blue;"><strong>Upgrade a PostgreSQL Version</strong></mark></td><td>Learn how to upgrade your PostgreSQL version.</td><td><a href="/pages/HCP94s7DLg0clTC841vh">/pages/HCP94s7DLg0clTC841vh</a></td></tr><tr><td><mark style="color:blue;"><strong>Update PostgreSQL Replication Mode</strong></mark></td><td>Learn how to update the replication mode of the PostgreSQL cluster.</td><td><a href="/pages/PoWgB0YMlJzdMDXGSFIc">/pages/PoWgB0YMlJzdMDXGSFIc</a></td></tr><tr><td><mark style="color:blue;"><strong>Increase a PostgreSQL Cluster Storage Size</strong></mark></td><td>Learn how to increase the your PostgreSQL cluster storage size.</td><td><a href="/pages/ce588eKhmwKVhPT2vcws">/pages/ce588eKhmwKVhPT2vcws</a></td></tr><tr><td><mark style="color:blue;"><strong>Scale a PostgreSQL Cluster Vertically</strong></mark></td><td>Learn how to scale your PostgreSQL cluster vertically by adjusting RAM and CPU.</td><td><a href="/pages/lhFpW5GdJer98YsU1nhv">/pages/lhFpW5GdJer98YsU1nhv</a></td></tr><tr><td><mark style="color:blue;"><strong>Scale a PostgreSQL Cluster Horizontally</strong></mark></td><td>Learn how to scale your PostgreSQL cluster horizontally by adding replicas.</td><td><a href="/pages/D4RwiFrYYMg2dlIQclzb">/pages/D4RwiFrYYMg2dlIQclzb</a></td></tr><tr><td><mark style="color:blue;"><strong>Set a PostgreSQL Maintenance Window</strong></mark></td><td>Learn how to set maintenance windows for your PostgreSQL cluster.</td><td><a href="/pages/LJW4HgMiugLeabzOeSBk">/pages/LJW4HgMiugLeabzOeSBk</a></td></tr><tr><td><mark style="color:blue;"><strong>Change a PostgreSQL Connection</strong></mark></td><td>Learn how to change the connection of your PostgreSQL cluster.</td><td><a href="/pages/UANw1ovrDZqvjThTL6pT">/pages/UANw1ovrDZqvjThTL6pT</a></td></tr><tr><td><mark style="color:blue;"><strong>Activate a PostgreSQL Connection Pooler</strong></mark></td><td>Learn how to activate the connection pooler for your PostgreSQL cluster.</td><td><a href="/pages/HKXFRmi4BM5PefKkMrSu">/pages/HKXFRmi4BM5PefKkMrSu</a></td></tr></tbody></table>


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