Azure Postgres Flexible Server Backup and Restore Explained

Azure Postgres Flexible Server backup is a critical component of database management, and understanding how it works is essential for any database administrator.

You can configure automated backups for your Azure Postgres Flexible Server, which can be scheduled to run at a specific time every day, week, or month.

Automated backups can be stored in a separate storage account, allowing you to easily manage and restore your database.

Restoring a database from a backup is a straightforward process that can be completed in a few clicks.

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To prepare for Azure PostgreSQL flexible server backup, you need to set relevant permissions to the vault and server. You'll also need to configure the vault and policy.

First, create a Backup vault, which is a prerequisite for this process. This will serve as a secure storage for your backups.

Next, create a PostgreSQL flexible server backup policy. This policy will define the backup settings for your server.

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You'll also need to prepare the request to configure backup. This involves using the same request body that you used to validate the backup request with a unique name.

Here's a list of the key steps to prepare for Azure PostgreSQL flexible server backup:

Make sure to use the Azure Resource Manager ID (ARM ID) of the Azure PostgreSQL flexible server and its details in the datasourceinfo section of your request body. You'll also need to provide policy information in the policyinfo section.

You can restore your Azure Database for PostgreSQL flexible server instance to a custom restore point by using an existing backup. This process involves selecting the custom restore point, providing a server name, and optionally choosing an availability zone to restore to.

To restore to a custom restore point, follow these steps:

You can also restore your flexible server by using a fast restore option, which allows you to restore your server quickly using a full backup. This process involves selecting the fast restore point and choosing the full backup of your choice.

To restore by using fast restore, follow these steps:

To restore your Azure Database for PostgreSQL flexible server instance to a custom restore point, you'll need to follow these steps.

First, navigate to the Azure portal and select the Azure Database for PostgreSQL flexible server instance that you want to restore the backup from.

Next, choose the "Restore" option from the left pane.

You'll then need to select a custom restore point from the dropdown menu under Source details.

When selecting a custom restore point, you can optionally choose an availability zone to restore to.

To do this, enter a server name in the "Name" field under Server details, and select an availability zone if desired.

A notification will then appear, confirming that the restore operation has started.

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To restore your flexible server quickly, you can use the fast restore option in the Azure portal.

First, choose the flexible server that you want to restore the backup from. Then, select Overview from the left pane and click on Restore.

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Next, under Source details, choose Select Fast restore point (Restore using full backup only) and select the full backup of your choice. For Server details, provide a server name and optionally choose an availability zone to restore to.

Here's a summary of the steps to follow:

A notification will show that the restore operation has started, and you'll know that your flexible server is being quickly restored to its previous state.

Perform geo-restore to get your Azure Database for PostgreSQL flexible server instance up and running in no time.

First, wait at least one hour after you create the source server before performing a geo-restore. This allows the system to settle and ensures a smooth restoration process.

To start the geo-restore process, head over to the Azure portal and choose the Azure Database for PostgreSQL flexible server instance you want to restore.

Select Overview from the left pane and then click on Restore. Under Source details, check the box next to Geo-redundant restore (preview) to restore to a paired region.

The server will be restored to the last available data at the paired region, and you can optionally choose an availability zone to restore to. The region and database version are pre-selected.

If you don't want geo-redundant backup, you can select Configure Server and clear the Restore to paired region checkbox. This will configure the backups for the restored server without geo-redundant backup.

If your source server is configured with private access, you can only restore to another virtual network in the remote region. You can either choose an existing virtual network or create a new virtual network and restore your server into that network.

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To manage backups for Azure PostgreSQL flexible servers, you can use the REST API, which is currently in preview.

You'll need to validate the backup request with a unique name, using the same request body as before.

This method allows you to back up your Azure PostgreSQL flexible server using the REST API.

To create a backup instance of your PostgreSQL database using the REST API, you'll need to use the same request body that validates the backup request with a unique name.

This operation is asynchronous, so it creates another operation that needs to be tracked separately. It returns two responses: 201 (Created) when the backup instance is created and the protection is configured, and 200 (OK) when that configuration completes.

The response to the create backup instance request includes a 201 (Created) status code with an Azure-asyncOperation header, which contains all the backup instance properties. This header is used to track the resulting operation.

You can track the operation using the Azure-AsyncOperation header with a simple GET command. Once the operation completes, it returns 200 (OK) with the success message in the response body.

Here are the possible responses to the configure backup request:

When creating a backup instance, the operation is asynchronous, so you'll need to track it separately. This is because the operation creates another operation that needs to be monitored.

The initial response to a PUT request to create a backup instance is 201 (Created) with an Azure-asyncOperation header. The request body contains all the backup instance properties.

To track the resulting operation, use the Azure-AsyncOperation header with a simple GET command. This will allow you to monitor the progress of the operation.

Once the operation completes, it returns 200 (OK) with the success message in the response body. This indicates that the protection is configured.

Here are the possible responses you can expect when configuring a backup request:

The 200 (OK) response indicates that the protection is configured, while other status codes will provide an error response describing why the operation failed.