Disaster Recovery Scenarios
The Disaster Recovery scenarios that enables customer to cost-effectively operate each of them are: Backup and Recovery, Pilot Light for Simple Recovery into AWS, Multi-Site Solutionand Warm Standby Solution.
When doing backup and recovery, the traditional method is to have the data backed up to tape and sent off-site. This method will have a very long recovery time. With the AWS Import/Export service, it will enable the transfer of very large data sets by shipping storage devices directly to AWS. You can have many backup solutions, which store backup data in Amazon S3 that can also be used from Amazon EC2 system. In terms of recovery of data in a disaster scenario, the process is tested quickly and reliably.
For the Pilot Light method, AWS enables you to automate the provisioning and configuration of the infrastructure resources. This would save time and eliminate human errors.
For Warm Standby Solution scenario, the system is scaled up quickly to handle the production load during a disaster. With AWS, it is done by adding more instances to the load balancer and resizing the small capacity server to run on larger EC2 instance types.
