There are an almost unlimited number of scenarios where you would need a disaster recovery solution. An actual disaster like an earthquake or flood; something a little less serious, like a power outage; or something that’s a complete disaster for your company but doesn’t make the nightly news, such as a user error that cripples your system.
Up until now, there have been limited options for enterprises recovering from disasters. Most organizations built secondary sites, or duplicate storage arrays and apps housed at a location other than the company’s main office. This environment requires management, constant upkeep and high-speed network access to ensure synchronous or asynchronous data replication between the arrays. This process is, obviously, expensive and involved – adding cost in terms of employee time, technology maintenance and physical space.
The time has clearly come to change this model. With the advent of the cloud, disaster recovery as a service (DRaaS) simplifies and improves the backup process. DRaaS allows your company to access all of its data instantly, without having to maintain storage infrastructure – and it can benefit businesses of any size. However, organizations considering a move to DRaaS should particularly consider two important metrics: recovery time objective (RTO) and recovery point objective (RPO).
Recovery time objective
RTO is the maximum amount of time that critical IT resources can be down without creating significant risks or incurring business losses. With most companies, this time is likely very close to zero, right?
Wrong. Conventional, array-based solutions often take a significant amount of time to replicate data and bring it online, leaving RTO much higher than is acceptable. With DRaaS, your data is constantly available at the DR site.
Recovery point objective
RPO is the maximum amount of time that your company’s data can be lost as a result of a major incident – for example, if your data is held in a temporary cache until it can be replicated, RPO concerns your window of time to recover that information. Again, most companies are looking for a time as close to zero as possible, and DRaaS can make this goal a reality.
When you consider RTO and RPO, then add benefits like cost, scalability and support for a wider hybrid cloud strategy, DRaaS becomes a clear choice for many enterprises. The time has come for traditional disaster recovery and business continuity to go the way of the 3.5-inch floppy disk: an innovation that was great for its time, but was ready to be replaced by something much better.