How Backup and Disaster Recovery (BDR) typically works:

1. Data Backup Process

   • Data Capture: A backup solution captures data from servers, databases, applications, or individual files. This can happen incrementally (only new/changed data) or as a full backup.

   • Backup Scheduling: Backups are scheduled at regular intervals (e.g., hourly, daily) to ensure recent data is available for recovery.

   • Encryption: Data is encrypted before storage to protect it from unauthorized access, both in transit and at rest.

2. Storage and Replication

   • Local and Cloud Storage: Data is stored either locally (e.g., on a Network Attached Storage device) for quick access or in a cloud environment for added security and redundancy.

   • Data Replication: Data may be replicated to different geographical locations to safeguard against regional disasters.

3. Data Integrity Checks

   • Verification: Regular checks are performed to ensure that backups are intact and not corrupted.

   • Automated Alerts: Systems can alert administrators if any issues arise, such as failed backups or inconsistencies in data.

4. Disaster Recovery (DR) Plan Execution

   • Failover Activation: In case of a primary system failure, the DR plan activates failover systems or replicas, allowing operations to continue.

   • Data Restoration: Data can be restored from the backup to bring systems back to the last stable state.

   • Virtualization for Quick Recovery: Virtualized environments may be used to quickly bring up critical systems while permanent solutions are restored.

5. Testing and Updating the DR Plan

   • Regular Testing: DR plans are tested periodically through simulations or drills to ensure they work effectively.

   • Plan Updates: Based on testing results or any business changes, the DR plan is updated to keep it aligned with current needs and conditions.

6. Ongoing Monitoring and Reporting

   • Continuous Monitoring: Backup processes are continuously monitored to identify and resolve issues proactively.

   • Reporting and Compliance: Detailed reports are generated to verify backup and recovery success, meeting any regulatory or compliance requirements.