Amazon Web Services (AWS) cloud computing resources, networking facilities, and multi-user applications reduce the amount of financial and business resources spent maintaining your business IT infrastructure. Off-site cloud storage further protects your data against disaster. This whitepaper reviews best practices for backup and disaster recovery on the AWS Cloud.
AWS has regions world-wide. Each region is a separate geographic area and is completely independent from other regions. This provides most customers with local region access, which is ideal for compliance and optimal speed.
Each region is composed of multiple, isolated locations known as Availability Zones which are connected to one another through a low-latency link. If your instances leverage multiple Availability Zones and one instance fails, you can design run your workloads from another Availability Zone. Same goes for storage.
If your storage uses multiple Availability Zones, you have 3 copies of your data for added resilience. AWS uses a pay-as-you-go pricing model. You are only charged for the resources used. Because the AWS Cloud is highly scalable, you can increase workloads from simple storage to virtual servers, databases, and application workloads, as needed.