Cloud Computing is ready for Disaster Recovery
Whilst those issues can make for a valid argument, I think there is much more to consider when it comes to DR and continuity services delivered from the cloud.
Cath Everett over at Silicon.com recently wrote about Continuity services provided from the cloud. Her article, titled "Cloud computing: Is it ready for disaster recovery?" poses five issues; Immaturity, Application Support, Bandwidth, Financial issues and Supplier issues.
As this blog has mentioned before, not all clouds are created equal and the choices you make about which network or LAN services to enhance with cloud platforms is down to your own due diligence. But, when you think about it not all on-premise applications or services are created equal either, and this is where the cloud can step in to provide DR & Continuity.
While Everett's five issues may be used to justify her position against heavily LAN based apps and services, such as those that are reliant on huge databases, I think she may have missed a key point.
The growth and innovation in the cloud continuity area has been driven by vendors who provide continuity or DR platforms for transactional services like email, some of whom have been doing so for many years. Everett's issue of immaturity in the market does not apply here.
If you think about the delivery of such transactional, or asynchronous, services to the desktop it is only natural that a cloud vendor who is already 'in the stream' or route of that service can act in a DR or continuity capacity when the inevitable disaster hits the corporate network.
Clever cloud DR vendors will simply allow your users to seamlessly fail-over to their cloud-infrastructure, essentially becoming the primary 'server' for the duration of the outage. Fail-back will be just as seamless and pain free. Of course fail-back for network based DR solutions is generally a shocking experience and one we would rather forget.
Therefore when we boil down the discussion to value for money in relation to email continuity, the cloud provides a simple and effective way to reduce your RPO and RTO to zero. Achieving the same on the LAN or on-premise would be cost prohibitive don't you think?