- Recovery actions should include 1)Restore from replicated data or snapshot or tape backup : Whichever is faster, 2)Invoke DR(Disaster Recovery) site. - However key is to find root cause and take proactive actions.That might include accidental deletion, hardware failure or disk corruption or network issue. - More important is to build strong architecture to cover data resiliency through real time replication,AWS or Azure snapshot, portable data.Recovery may take longer in worst case but having any data loss will have wider ramification including business loss or legal. - Periodic testing of data recovery is key to keep the system intact.That would ensure restorability in case of any data loss.

Understand the extent of the data loss, including the amount of data affected, the types of data, and the impact on business operations. Determine how the data loss occurred, whether it was due to a misconfigured cloud configuration, human error, or a technical issue. Inform everyone, including IT teams, management, and customers, about the situation and the recovery efforts underway. If some data is still available in the cloud or on-premises systems, try to restore it using backups. For data that cannot be restored, develop a plan to recreate it from available sources, such as previous versions or alternative data stores.

Facing critical data loss during a cloud migration is tough, but swift action can transform it into a learning opportunity. The team needs to execute a recovery plan by restoring backup data and verifying its integrity before full reintegration. Conducting a root cause analysis and engaging the team allows us to gather diverse insights and understand what went wrong. Enhancing protocols comes next. Updating migration procedures and implementing safeguards like data validation tools and incremental migrations can significantly reduce future risks. Build a more resilient infrastructure by adopting robust backups with automation and versioning and strengthening security through role-based access control and multi-factor authentication.

Everyone discussed how to prevent data loss during migration. However, I recommend minimizing data loss by streamlining your data. This can be achieved by partitioning it and moving it in batches to a staging area before starting the actual migration to the target.

- Evaluate the extent of the data loss and identify affected data. - Utilize existing backups to recover lost data promptly. - Work with the cloud provider for additional recovery options. - Review migration processes to identify the root cause of data loss. - Introduce data validation checks during migration for integrity. - Establish a robust backup strategy with regular snapshots. - Train the team on best practices for cloud migration. - Develop incident response plans for potential data loss scenarios.