Data Recovery and Backups 📁🔄
Learning Objectives 🎯
Tradeoffs Between On-Site and Off-Site Backups 🌐
On-Site Backups: Stored physically at the same location as the data. Pros include quick access and control over the backup process. Cons include vulnerability to local disasters (e.g., fire, flood).
Off-Site Backups: Stored at a different location, often in a remote or cloud-based facility. Pros include protection against local disasters and typically better scalability. Cons include potential delays in access and reliance on external providers.
Evaluating Characteristics of a Backup System 🛠️
Reliability: Ensure the backup system consistently performs as expected.
Capacity: Assess if the system can handle the volume of data.
Speed: Evaluate the time required for backup and recovery processes.
Security: Consider encryption and access controls to protect backup data.
Importance of Backup and Recovery Testing ✔️
Backup Testing: Regularly test backups to ensure they are functioning correctly and can be restored.
Recovery Testing: Simulate recovery scenarios to verify that data can be restored in a timely and accurate manner.
Options for Data Backup and Associated Risks ⚠️
Full Backups: Complete copy of all data. Risk: High storage requirements.
Incremental Backups: Only new or changed data since the last backup. Risk: Complex recovery process.
Differential Backups: Data changed since the last full backup. Risk: Increased storage needs compared to incremental backups.
Purpose and Contents of a Disaster Recovery Plan 📝
Purpose: To provide a structured approach for recovering data and restoring operations after a disaster.
Contents:
Recovery Objectives: Define Recovery Time Objectives (RTO) and Recovery Point Objectives (RPO).
Roles and Responsibilities: Assign roles for team members during a disaster.
Procedures: Outline steps for data recovery and system restoration.
Communication Plan: Establish protocols for informing stakeholders.
Understanding these concepts will help you design robust backup systems, ensure data integrity, and prepare effective disaster recovery plans.
Last updated