The cloud trend continues to offer new ways to support business critical IT processes. As companies become comfortable with cloud solutions for file storage and application delivery, they continue to consider cloud services for other uses. One such potential use of cloud technology is Disaster Recovery as a Service (DRaaS).
What is DRaaS?
Disaster recovery in a large enterprise environment means making critical business systems available to enable business continuity in the case of major catastrophic failure. In some extreme cases, this can mean setting up an offsite tech stack, ready to offer full redundancy when required. This is of course both expensive and difficult to maintain. DRaaS offers similar levels of redundancy, but at a far decreased cost of ownership. Instead of physically duplicating key IT infrastructure, it is virtualized in the cloud. This removes the need for hardware, and also the need to house it somewhere.
Is DRaaS Right for Your Business?
Unlike other forms of cloud technology, measuring the ROI of DRaaS is quite difficult. Consider for a moment that any DRaaS deployment needs to be able to provide full functionality of critical systems in an emergency. Many companies may be wary of outsourcing this crucial role to a third party cloud services vendor. Before making a commitment to a DRaaS provider, the following issues need to be considered:
- Support for multi-homed redundancy – is a single remote replica of core infrastructure enough? In some cases, to ensure a 100% rate of business continuity, two or more fully redundant technology deployments may be preferable.
- Support for multi-homed architecture – many companies have deployed a technology stack that is split across several physical sites. Any DRaaS solution will need to facilitate the unification of multiple systems, across multiple sites, into a single cloud based disaster recovery platform.
- Failover process – is this triggered automatically? Does the contract and SLA with the DRaaS vendor specify time or transaction limits? How is the handover from disaster recovery state, to normal operation handled? All of these questions and more need to be addressed before DRaaS is selected as a preferred way to ensure business continuity.
- Does it actually work? – Can the DRaaS vendor ensure that performance and availability of the cloud service will be able to support the continued operation of the business?
Have questions about DRaaS? HOSTING has answers. Contact our cloud experts anytime with your specific questions. And view our on-demand webinar, Think You’ve Tested Your DR Plan? Think Again!, For more information.