YugabyteDB Aeon provides the following tools to manage clusters:

| Feature | Description |
| :--- | :--- |
| [Scaling](configure-clusters/) | To ensure the cluster configuration matches its performance requirements, scale the cluster vertically or horizontally as your requirements change. |
| [Read replicas](managed-read-replica/) | Add read replicas to lower read latencies in regions that are distant from your primary cluster. |
| [Backups](backup-clusters/) | Configure a regular backup schedule, run manual backups, restore from backups, and set up remote backup replication. |
| [Point-in-time recovery](aeon-pitr/) | Create a database clone at a point in time for recovery or testing. |
| [Maintenance windows](cloud-maintenance/) | Yugabyte only performs cluster maintenance, including database upgrades, during a weekly maintenance window that you configure. |
| [PostgreSQL extensions](add-extensions/) | Extend the functionality of your cluster using PostgreSQL extensions. |
| [Change Data Capture](aeon-cdc/) | Capture and stream changes made to data in the database to external processes, applications, or other databases. |

### Pause, resume, and delete clusters

To reduce costs on unused clusters, you can pause or delete them.

Access **Pause/Resume Cluster** and **Terminate Cluster** via the cluster **Actions** menu, or click the three dots icon for the cluster on the **Clusters** page.

Deleting a cluster deletes all of its data, including backups.

Paused clusters are not billed for instance vCPU capacity. Disk and backup storage are charged at the standard rate (refer to [Cluster costs](../cloud-admin/cloud-billing-costs/#paused-cluster-costs)). You can't change the configuration, or read and write data to a paused cluster. Alerts and backups are also stopped. Existing backups remain until they expire. You can't pause a Sandbox cluster. Yugabyte notifies you when a cluster is paused for 30 days.

Note that if another [locking operation](#locking-operations) is in progress, you can't pause or delete a cluster until the other operation completes.

### Locking operations

Cluster infrastructure operations lock the cluster while they are in progress, and only one can happen at the same time. Some operations also require a restart.

| Locking Operation | Subtask | Restart |
| :--- | :--- | :--- |
| [Backup and restore](backup-clusters/) | | |
| [Point-in-time recovery and clone](aeon-pitr/) | | |
| Pause and resume | | |
| [Cluster Edit](configure-clusters/) | Add or remove nodes | |
| [Cluster Edit](configure-clusters/) | Change vCPUs, increase disk size, or change IOPS | Yes |
| [Read replica edit](managed-read-replica/) | Create or delete; add or remove nodes | |
| [Read replica edit](managed-read-replica/) | Increase disk size, change IOPS | Yes |
| [Scheduled maintenance](cloud-maintenance/) | Database upgrades, certificate rotations, and cluster maintenance<br>(A backup is run automatically before a database upgrade) | Yes |
| [Metrics export](../cloud-monitor/metrics-export/) | | |
| [Database query logging](../cloud-monitor/logging-export/) | Enable, disable, modify | Yes |
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| [Database audit logging](../cloud-monitor/logging-export/) | Enable, disable, modify | Yes |
-->
Keep in mind the following:

- For clusters with Node, Availability Zone, or Region fault tolerance, and read replicas with a replication factor greater than 1, restarts are rolling. Your database will continue to function normally during infrastructure operations, but these operations can temporarily degrade application performance.

- For clusters with fault tolerance of none, and read replicas with a replication factor of 1, restarts will result in downtime for the cluster or read replica.

- You should schedule infrastructure operations during periods of low traffic.

- On AWS, any disk modification (size or IOPS) blocks further disk modifications for six hours (this includes a scaling operation that increases the number of vCPUs, as this also increases disk size).

- Make sure that you schedule maintenance and backups so that they do not conflict.

### Enhanced Postgres Compatibility

If your cluster database version is v2024.1.0 or later, you can enable early access features for PostgreSQL compatibility on the cluster **Settings>Infrastructure** tab. For more information, refer to [Enhanced PostgreSQL Compatibility Mode](../../reference/configuration/postgresql-compatibility/).

### Connection Pooling

{{<tags/feature/ea>}}If your cluster database version is v2024.2.3 or later, you can enable built-in Connection Pooling on the cluster **Settings>Connection Pooling** tab. For more information and limitations, refer to [Built-in connection pooling](../../additional-features/connection-manager-ysql/).

For Connection Pooling metrics, see [YSQL Ops metrics](../cloud-monitor/overview/#ysql-ops).

&nbsp;

{{<index/block>}}

  {{<index/item
    title="Scale clusters"
    body="Scale clusters horizontally or vertically."
    href="configure-clusters/"
    icon="fa-thin fa-pen">}}

  {{<index/item
    title="Read replicas"
    body="Serve read requests from remote regions."
    href="managed-read-replica/"
    icon="fa-thin fa-clone">}}

  {{<index/item
    title="Back up clusters"
    body="Perform on-demand backups and restores, and customize the backup policy."
    href="backup-clusters/"
    icon="fa-thin fa-down-to-bracket">}}

  {{<index/item
    title="Point-in-time recovery"
    body="Create a database clone at a point in time for recovery or testing."
    href="aeon-pitr/"
    icon="fa-thin fa-timeline-arrow">}}

  {{<index/item
    title="Maintenance windows"
    body="Set up maintenance windows and exclusion periods for cluster upgrades."
    href="cloud-maintenance/"
    icon="fa-thin fa-window-frame-open">}}

  {{<index/item
    title="Database upgrade"
    body="Manage upgrades to the YugabyteDB software powering your cluster."
    href="database-upgrade/"
    icon="fa-thin fa-cloud-plus">}}

  {{<index/item
    title="Create extensions"
    body="Create PostgreSQL extensions in YugabyteDB Aeon clusters."
    href="add-extensions/"
    icon="fa-thin fa-cubes">}}

  {{<index/item
    title="Change Data Capture"
    body="Capture changes made to data in the database."
    href="aeon-cdc/"
    icon="fa-thin fa-arrows-rotate">}}

{{</index/block>}}