Week 11 - BSIT - 400-T320 Cloud Computing & Governance - Disaster Recovery
Disaster recovery (DR) is an essential strategy that enables organizations to quickly recover from incidents that disrupt operations, ensuring data integrity, system uptime, and business continuity. DR involves various strategies, each designed to meet specific needs in terms of downtime tolerance, data recovery, and budget. Choosing the right strategy depends on the organization’s size, reliance on real-time data, and acceptable recovery time and data loss levels, known as Recovery Time Objective (RTO) and Recovery Point Objective (RPO). Key DR strategies range from simple backup and restore methods to advanced options like hot sites and Disaster Recovery as a Service (DRaaS). Basic backup and restore solutions are cost-effective and suitable for small businesses with limited recovery needs, while cold sites and warm sites offer more infrastructure but still involve some delay in recovery. Hot sites provide immediate failover capabilities but come at a high cost, making them ideal for enterprises with minimal tolerance for downtime. Cloud-based disaster recovery and DRaaS offer scalable, flexible solutions managed by third-party providers, supporting both data and application recovery with minimal downtime.
To create an effective DR plan,
organizations should assess potential risks, set realistic RTO and RPO targets,
and select a strategy that balances recovery needs with budget constraints.
Regular testing and updates are essential to ensure DR plans remain effective
and responsive to evolving business needs. With the right approach,
organizations can safeguard their critical systems and maintain operations even
during a disaster.
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