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Author: brown9804

0_Azure/1_AzureData/1_Databases/demos/9_MySQL_BU_DR.md

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+# Azure MySQL: <br/> Backup (BU) & Disaster Recovery (DR) - Overview
+
+Costa Rica
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+[brown9804](https://github.com/brown9804)
+
+Last updated: 2025-03-17
+
+----------
+
+<details>
+<summary><b>List of References </b> (Click to expand)</summary>
+
+- [Backup and restore in Azure Database for MySQL - Flexible Server](https://learn.microsoft.com/en-us/azure/mysql/flexible-server/concepts-backup-restore)
+- [Back up an Azure Database for MySQL flexible server by using Azure Backup (preview)](https://learn.microsoft.com/en-us/azure/backup/backup-azure-mysql-flexible-server)
+- [Migrate your MySQL database to Azure Database for MySQL - Flexible Server using dump and restore](https://learn.microsoft.com/en-us/azure/mysql/flexible-server/concepts-migrate-dump-restore)
+- [Trigger on-demand backup of an Azure Database for MySQL - Flexible Server instance by using the Azure portal](https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-trigger-on-demand-backup)
+
+</details>
+
+> [!NOTE]
+> Quick reference on how to create an Azure Database for MySQL Flexible Server:
+
+https://github.com/user-attachments/assets/1c6efd8a-987a-46ac-a81d-6d4ae74b07fd
+
+## Backup (BU) for MySQL on Azure
+
+| **Category**          | **Description**                                                                                                                                                                                                                       |
+|-----------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
+| **Automated Backups** | - **Daily Backups**: Azure Database for MySQL automatically performs daily backups of your databases. These backups are stored in geo-redundant storage (GRS) to ensure high availability.<br/>- **Retention Period**: Configure the retention period for automated backups, typically ranging from 7 to 35 days.<br/>- **Point-in-Time Restore (PITR)**: Restore your database to any point within the retention period, providing flexibility in case of accidental data loss or corruption. |
+| **Manual Backups**    | - **On-Demand Backups**: Create manual backups at any time. These backups are stored in GRS and can be used to restore your database to the state at the time of the backup.<br/>- **Exporting Data**: Export your MySQL database using the `mysqldump` utility, which can be stored in Azure Blob Storage or downloaded locally for additional safety. |
+| **Backup Storage**    | - **Geo-Redundant Storage (GRS)**: By default, backups are stored in GRS, which replicates data to a secondary region to ensure durability and availability.<br/>- **Locally Redundant Storage (LRS)**: For cost savings, you can opt for LRS, which keeps multiple copies of your data within a single region. |
+
+### Automated Backups
+
+> `Automated Backups` for Azure Database for MySQL ensure that your data is regularly backed up without manual intervention.
+
+#### Daily Backups
+
+> Azure Database for MySQL automatically performs daily snapshot backups of the data files and transaction logs. These backups are stored in geo-redundant storage (GRS) to ensure high availability and durability.
+
+1. **Access the Azure Portal**: Navigate to the Azure Portal and sign in with your credentials.
+2. **Navigate to Your MySQL Flexible Server**: In the Azure Portal, go to `All resources` and select your Azure Database for MySQL Flexible Server instance.
+3. **Compute + Storage Settings**: In the left-hand menu, under `Settings`, select `Compute + storage`.
+4. **Backup Retention**:
+   - In the `Backups` section, you will find the slider labeled `Backup retention period in days`.
+   - Use the slider to set the retention period for automated backups, which can range from 7 to 35 days.
+
+   https://github.com/user-attachments/assets/769fa81a-450f-4cd9-a4d9-8f4f227c01c9
+
+5. **Backup Redundancy**:
+   - Below the retention slider, you will see options for backup redundancy:
+     - **Locally-redundant**: Keeps multiple copies of your data within a single region.
+     - **Geo-redundant**: Replicates data to a secondary region to ensure durability and availability.
+     - **Read-access geo-redundant**: Provides read access to the replicated data in the secondary region.
+   - Select the desired redundancy option based on your requirements.
+
+    https://github.com/user-attachments/assets/ea53958a-ca3e-4100-a527-d0e46cdb992e
+
+
+### Manual Backups
+
+> `Manual Backups` provide additional control over backup operations, allowing you to create backups on demand.
+
+#### On-Demand Backups
+
+> You can create manual backups at any time. These backups are stored in geo-redundant storage (GRS) and can be used to restore your database to the state at the time of the backup.
+
+1. **Access the Azure Portal**: Navigate to your Azure Database for MySQL instance.
+2. **Backup Settings**: Under the `Settings` section, select `Backup and Restore`.
+
+     <img width="550" alt="image" src="https://github.com/user-attachments/assets/e4aab7b9-4d16-4a5c-8817-6ccab7ec555e" />
+
+3. **Backup Now**: Click on `Backup` and provide a custom name for the backup.
+
+     <img width="550" alt="image" src="https://github.com/user-attachments/assets/756a6512-267e-47a4-a2c5-4b182f4f28bd" />
+
+     https://github.com/user-attachments/assets/0f3743ca-9098-45a4-82c9-e67593e4ffcc
+
+### Backup Storage
+
+
+## Disaster Recovery (DR) for MySQL on Azure
+
+<div align="center">
+  <h3 style="color: #4CAF50;">Total Visitors</h3>
+  <img src="https://profile-counter.glitch.me/brown9804/count.svg" alt="Visitor Count" style="border: 2px solid #4CAF50; border-radius: 5px; padding: 5px;"/>
+</div>