In good times investing in Disaster Recovery solutions becomes a low priority and clients often think its too expensive but when you find yourself in the path of a natural disaster those priorities quickly change. Even if your business survives the storm and gets government and Insurance to help physically get the doors open again by helping with cleanup and replacement of office supplies, it can not help if records and important documents have been lost. For this, companies need to be proactive with their approach.
We may have a situation where our original data is accidentally deleted or changed but the possibility of system failure will always be top priority. That could be anything from a hard drive crash on a user's device to a data center being crushed by a natural disaster. If any of those failures happens, it is not just data that needs restoring, but the full working environment. In other words "disaster recovery".
Backup and disaster recovery are not directly interchangeable terms, but recovery is not possible without backup in the first place. Disaster recovery is having the tested where with all to get systems restored and running as quickly as possible, including the associated data.
The increasing use of Cloud has changed the way recovery is carried out because, in a virtual world, a system can be recovered by duplicating images of virtual machines (VM) and recreating them elsewhere.
In the old days, if a server crashed then you went through the following steps:
Cloud Virtualization changes everything and increases the number of options. First, data can be easily backed-up as part of an image of a given virtual machine (VM), including application software, local data, settings and memory. Second, there is no need for a physical server rebuild because the VM can be in the cloud. This means most of the costs of redundant systems disappear.
Disaster recovery is cheaper, quicker, easier and more complete in a virtual world. When it comes to data backup, faster recovery time objectives are easier to achieve.
Disaster recovery as a service(DRaaS) allows for the replication of VMs embedded in the service, so failover and recovery happens almost instantaneously. DRaaS solutions can also offer converged hardware products that can backup and replicate application data, eliminating the need for separate software.
DRaaS providers provide unique value to make it worth their customers while and simplify disaster recovery. In fact cloud is so reliable as a backup and recovery solution many customers are moving their business processes and applications to cloud as their primary solution.