On the other hand, traditional DR uses the technique of replicating the data and applications on dedicated backup servers and storage on either of the on-premise or remote locations. It also employs qualified IT recruits to store regular backups, test, and preserve this replica of the IT infrastructure.
The cloud-based alternatives available today present an attractive substitute to the traditional DR. As an alternative to buying and keeping backup storage and server resources in case of a disaster, cloud computing, with the pay-per-use pricing model that it has, permits companies to pay for long-standing data storage and only pay during trial or failover for servers. This considerably reduces the cost and makes DR a reasonable choice for many.
Traditional Disaster Recovery
A secondary physical DR site with huge investments in added data center space, attendant operational costs related to power, cooling, site maintenance, connectivity, servers, etc. are involved in this method.
Such a site operates only amid data replication or when there is a disaster. The processes involved in making such a site live to involve a time lag and has a considerable risk of data loss and business continuity.
Manual operations are needed to start operation at the DR site if the connection between the primary and DR sites fails or is interrupted. This can result in a huge loss of business continuity.
Cloud-based Disaster Recovery
Such a disaster recovery system which provides virtual machine snaps of the virtual and physical servers at the primary data center is called cloud-based disaster recovery. In this, the clients only pay for storage of the snapshots and the applications in an interrupted state, and data synchronization between the primary and cloud DR sites. The servers are paid for on an infrastructure-as-a-service basis only in case of a disaster when the virtual machines need to be turned online during failover.
The sites of Cloud DR are automated and can go live within seconds or minutes. This minimizes the risk of data loss, and business continuity is improved. A Wi-Fi connection even if the intended connectivity misses the mark.
Virtualized cloud system is suitable to provide DR. A cloud-based DR Service may only require a tiny share of resources to bring into line the primary and cloud sites. With the automated virtualization platforms for disaster recovery, you are certain that the additional resources can be turned alive anytime a disaster a detected. This ultimately also reduces the recovery time after such a failure a lot, and this plays a prominent role in ensuring business continuity.
The best part about a cloud-based DR service is that it changes the dialog from data centers and hardware purchase to cloud capacity planning with all its characteristic benefits:
- Lower costs, especially for small business with the Pay-as-you-go
- Minimized recovery time during failovers due to automated virtual platforms
- The possibility to switch to powerful servers form low cost only when there is a need to do so
- Remote geographical locations for the storage of backup data
- The price and trouble of having to work with recovered data is removed