Quick start guide to Geo-restore in Azure SQL Database

Quick start guide to Geo-restore in Azure SQL Database

This article will discuss how an Azure SQL Database—a cloud based service model, provides a platform to back up the data and ensure to keep the business up-and-running even after the disaster.

Azure SQL Database—a cloud-based service model provides a platform to back up the data and ensure to keep the business up-and-running even after the disaster. The data is vital and backup of the data revolves around the process of backup, restoration, recovery, Business-Continuity-Plans (BCP), and disaster recovery (DR). In this article, we will learn:

  1. Azure SQL Database business continuity plan and disaster recovery solution
  2. Definitions of RPO and RTO
  3. Discuss Azure SQL database automatic database backup
  4. Explain Geo-restore with examples
  5. And more…

Introduction

Azure SQL Database provides an in-built high-availability and fault-tolerance solution to handle business continuity and disaster recovery scenarios. In addition, there are several configurable parameters that can achieve high-availability/disaster recovery across multiple regions.

High-availability and disaster-recovery planning are vital to business-continuity-plans. In this article, we will explore the Azure extend to high availability and disaster recovery solution. By default, Azure offers a Geo-restore feature—the most basic disaster-recovery solution available for Azure SQL Database and Azure SQL Managed Instance. The automatic geo-replicated backups define the recovery-point-objective (RPO) up to 1 hour and recovery-time-objective (RTO) up to 12 hours.

  • Note 1:_ If the application is critical and business availability is of utmost importance, then Geo-restore might not be a good option. If the application is non-critical, and relatively small and the business can withstand the longer recovery paths then geo-restore may be a relevant disaster-recovery solution. In other words, for critical applications and large databases and must ensure business continuity and disaster-recovery strategy then using active geo-replication is a viable option. The active geo-replication setup uses [Auto-failover-groups_](https://docs.microsoft.com/en-us/azure/azure-sql/database/auto-failover-group-overview)_ and provides the lower recovery-point-objective and recovery-time-objective, and there is no limitation on the target region._
  • Note 2:_ If you are using geo-restore as the disaster recovery solution then the recovery point objective usually takes place within the first 12 hours from the point of restore command invocation. In addition, you may also see a data loss up to 1 hour and it depends on when the last backup was initiated and completed, and replicated to the target region_
  • Note 3:_ During the recovery process, the database can’t be accessed. It neither records the transactions nor responds to the queries_
  • Note 4:_ During the recovery process, if the data-center comes back online, it is easy to cancel the recovery process_

azure recovery sql azure

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