Introduction If you are working with Oracle Data Guard, you have probably wondered what actually gets transmitted between your primary and standby databases. Is it the redo data, the redo log files, or the entire data blocks themselves? It is an important distinction, and understanding it can help you troubleshoot performance issues, optimize your network…
Introduction When building applications, it is essential to ensure business continuity by establishing high availability and disaster recovery mechanisms. This requires implementing a resilient disaster recovery framework capable of swiftly restoring operations in the event of an outage. For years, organizations have relied on Oracle Exadata Database Service, Oracle’s premier disaster recovery technologies, to support mission-critical…
Introduction Ensuring uninterrupted business continuity is critical to success when designing applications. Achieving this requires a robust disaster recovery strategy designed to quickly restore functionality in case of disruptions. For years, businesses have trusted Oracle Exadata Database Service with Oracle’s premier disaster recovery technologies to power critical applications, both on-premises and within Oracle Cloud Infrastructure (OCI).…
Introduction Oracle Database runs everywhere: on-premises, on Oracle Cloud, on non-Oracle Clouds, and in multicloud environments. For Oracle database services running on Oracle Cloud and Oracle Database@Azure, automatic backups are available and recommended to Autonomous Recovery Service, which provides immutability by default. For Oracle databases running elsewhere, consider having an (additional) backup to OCI Object…
The Oracle Maximum Availability Architecture (MAA) product management team invites you to attend its next MAA Summit for informative and interactive sessions on Oracle Database high availability and disaster recovery, Oracle Vector Search, and Exadata MAA. Learn about what’s new and provide your feedback directly to Oracle product management. When and Where Tuesday, May 14,…
Introduction Oracle Cloud Object Storage is a regional service, i.e., objects are stored in a specific Oracle Cloud region. You can enable cross-region replication to automatically sync your data to a remote region for redundancy, providing protection from a regional outage. This blog post describes how to configure cross-region replication, use the replicated Object Storage…
Introduction Before we start, I want to mention that Oracle (Active) Data Guard provides the best disaster recovery solution for Oracle Databases with zero data loss and minimal recovery time. Restoring from backup usually comes with a much higher RPO and RTO than what Data Guard provides. However, if restoring from backup satisfies your application’s…
Introduction Oracle Data Guard provides zero or near zero data loss and a recovery time of just a few minutes. For unrecoverable failure, a restore from backup usually takes hours and restores your data to the last backup. If you have applications that tolerate the RTO and RPO provided by a restore from backup, having…
Introduction Oracle Data Guard and Active Data Guard ensure high availability and disaster recovery during maintenance operations and in case of outages. Recovery Point Objective (RPO) of zero (zero data loss) can be achieved by setting up SYNC or FASTSYNC replication, even at any distance, using Far Sync without compromising performance. Recovery Time Objective (RTO)…
Introduction Oracle Data Guard replicates data from the primary to one or multiple standby databases for high availability and disaster recovery. The decision to transfer the redo synchronously or asynchronously depends on your RTO and RPO. Synchronous redo transport provides zero data loss and lower recovery time, but your application needs to wait until the…
Database Heartbeat 