DR Site
Definition
A Disaster Recovery Site is an alternate location where business operations can continue seamlessly if the primary site becomes unavailable due to
Use Cases
- Netflix: Maintain service availability during regional failures and major infrastructure disruptions. — Netflix runs its platform across multiple AWS regions and designs services to fail over when components or locations become unavailable. While not described as a traditional office-style DR site, the multi-region architecture serves the same disaster recovery purpose at cloud scale. (Improved resilience and the ability to continue serving customers even when parts of the infrastructure fail.)
- Capital One: Protect banking and financial services operations against outages and regional disasters. — Capital One uses cloud-based, multi-region architectures on AWS to support business continuity and disaster recovery for critical applications and data. (Reduced dependence on a single data center and improved recovery capabilities for customer-facing financial systems.)
- Zoom: Keep communication services available during infrastructure failures or traffic surges. — Zoom uses geographically distributed cloud infrastructure with redundancy across regions, allowing workloads to shift if a location becomes impaired. (Higher service availability and better continuity for meetings and collaboration during disruptions.)
Provider Equivalents
- AWS: AWS Elastic Disaster Recovery
- Azure: Azure Site Recovery
- GCP: Google Cloud Backup and DR
- OCI: Oracle Cloud Infrastructure Full Stack Disaster Recovery
Frequently Asked Questions
- What's the difference between a DR Site and a backup?
- A backup is a copy of data that helps you restore files after deletion, corruption, or ransomware. A DR Site is a full recovery location with the systems, network, applications, and data needed to keep business operations running when the main site is unavailable. Backups protect data; a DR Site protects business operations.
- When should I use a DR Site?
- Use a DR Site when downtime would seriously harm your business, such as for banking, healthcare, ecommerce, manufacturing, or customer-facing applications. It is especially important if you have strict recovery goals, regulatory requirements, or operations that must continue during a regional outage, cyberattack, or natural disaster.
- How much does a DR Site cost?
- Cost depends on the type of DR setup. A cold site is cheaper because infrastructure is mostly inactive until needed. A warm site costs more because systems are partially ready. A hot site costs the most because systems are fully running and synchronized for fast failover. In cloud environments, pricing is affected by replication storage, compute standby resources, network transfer, software licensing, testing, and the number of protected servers or applications.
Category: cloud
Difficulty: basic
Related Terms
See Also