‫Hi, and welcome to AWS
‫Elastic Disaster Recovery, or DRS.
‫This service used to be named Cloud Endure Disaster Recovery
‫because it was acquired by AWS
‫but then it's been renamed as a proper AWS service.
‫So elastic disaster recovery, DRS, allows you to quickly
‫and easily recover your physical, virtual,
‫and cloud based servers
‫into AWS, to do, well, disaster recovery.
‫So for example,
‫say you wanted to protect your most critical databases.
‫That includes Oracle, MySQL, SQL server,
‫your enterprise apps, such as SAP
‫or you want to protect your data
‫in case someone's performs an attack
‫and tries to get a ransom out of it.
‫Well, for this
‫you're going to do continuous block level replication
‫of your servers from your corporate data center
‫into the cloud, using the elastic disaster recovery service.
‫So your operating systems, your apps, your database,
‫all of them write to disk and what's going to happen is
‫that thanks to an AWS replication agent that is present
‫on your corporate data center
‫then you're going to get continuous replication
‫of these disks into a staging environment in AWS
‫with low cost in EC2 instances and EBS volumes.
‫And then in case a disaster strikes your data center
‫and you need to perform digital recovery,
‫then you can fell over within minutes from
‫staging to production by creating bigger
‫EC2 instances, better EBS volumes,
‫and you have performed effectively your disaster recovery.
‫And then when your incorporated sensor
‫or anywhere else really is back online
‫you can perform what's called a failback
‫which is that the system falls back
‫into your incorporated sensor and you're operating normally.
‫Okay?
‫So that's it, elastic disaster recovery is a service
‫that allows you to do better disaster recovery.
‫I hope you liked it.
‫And I will see you in the next lecture.