When an unexpected event takes place and bring daily operations to a halt, an organization need to recover as quickly and continue to provide services to their clients. Disaster can be occurring in various forms, a form of a virus, corrupted data and even a natural disaster. If disaster strategy is absent in organizations environment, it will result huge loss in productivity. Recovering from these natural or technical disasters, without affecting the company productivity is termed as Disaster Recovery. Cloud computing delivers a fast recovery when compared to conventional recovery methods. In disaster recovery approach, cloud computing works based on virtualization. The advantage of using this virtualization process is that the entire server data is enclosed in a single software bundle or virtual server and backed up to an off-site data center. As the virtual server is fully hardware independent, data is safe and easily transferred from one data center to another. By using cloud computing, recovery from any disaster will be faster with more cost-effective manner. We won’t be able to predict any risk, but can be prepaid for it. There are different types of backup sites to keep our data safe from any disasters. The below are three types of sites and how they differ from each other in disaster services.
Hot site provides quickest recovery after the disaster. These hot sites, locations are virtually a mirror of our data center, and allow us to recover data and application in no time. By using cloud based hot sites, the backups are completely virtual and disaster does not affect both sites. This hot site solution supports uninterruptible and immediate recovery.
This solution provides near time recovery of data and application through redundant, data center configuration. When disaster occurs backups are loaded on the equipment and the recovery process can begin. This type of solution is suitable for business that can tolerate a few hours of down time while systems are updated.
A cold sites solution provides recovery and restoration of data from backups at a disaster recovery location itself. This solution does not include mirroring of data servers. Though this is most affordable solution of all the three, it's more suitable for business that do not need 24/7 availability.