AWS Elastic Disaster Recovery vs Cohesity SiteContinuity

AWS Elastic Disaster Recovery recovers on-premises and cloud applications on AWS to reduce downtime and data loss. Recovery instances can launch within minutes from the latest server state or an earlier point in time. Afterward, replicated data can return to the primary site for failback, and non-disruptive recovery and failback drills can run while replication continues. Sources include physical infrastructure, VMware vSphere, Microsoft Hyper-V, and other cloud providers. Supported workloads run on supported Windows and Linux versions, including Oracle, MySQL, SQL Server, and SAP. Recovery targets include EC2 instances in another Availability Zone or AWS Region. Point-in-time recovery can provide an operational copy from before a security incident. Replication uses TLS 1.2 in transit and can use Amazon EBS encryption at rest, with VPN, Direct Connect, or VPC peering for private connectivity. The service supports up to 300 servers in one staging account and up to 3,000 in one target account using multiple staging accounts. Pricing is $0.03 per month, billed $0.028 per source server per hour; additional AWS resource charges apply.

Cohesity SiteContinuity coordinates disaster recovery for mission-critical workloads, with recovery options ranging from an individual file or business application to a full data center. Its plan builder supports automated failover and failback, continuous data protection, asynchronous replication, non-disruptive recovery testing and restore operations. Organizations can manage physical or virtual clusters at primary and recovery sites, or choose Cohesity-managed disaster recovery that fails over to the customer’s AWS account. Listed targets include VMware Standard or above, versions 6.5 and 6.7, and Cohesity NAS Views for customer-managed deployment; the managed service lists VMware VMs and Amazon EC2 as a target. Interfaces for automation include a RESTful API, PowerShell and Python SDK. The datasheet lists AES-256 encryption in transit and at rest for both options, and anomaly detection for customer-managed deployment. Pricing is on request, with a 30-day trial listed. Cohesity states that technical support is available around the clock, with a one-hour initial response target for P1 errors.