Recovery as a Service is a cloud solution wherein enterprises can recover their critical data, and still keep the applications running in case of a failover. A lot of businesses face some form of a natural disaster. Imagine if a power outage, hardware failure, file corruption, human error, earthquake, flood, hurricane, thunderstorm, wildfire, winter weather, or tornado, strikes your data centre. Major interruptions can befall like their website going down or losing all of the customer data.
Azure Site Recovery (ASR) is a DRaaS offered by Microsoft Azure for use in the cloud and hybrid cloud architectures. With ASR, it is plausible for Azure Virtual Machines, physical on-premises systems, and VMWare to failover to and successfully recover back once the disaster has been resolved. The constant data replication process enables copies to be in sync.
So how does Azure Site Recovery works?
Azure site recovery focuses on three key areas to ensure a safe and quick recovery.
- Architecture Replication- with azure one can replicate their entire architecture on cloud, this could be replication from azure VMs to another Azure VM or replication of on-premises structure on an Azure VM. In case of an interruption at the primary location, traffic is automatically redirected to the secondary location to make sure the applications remain accessible.
- Lower RTO and RPO standards- RTO ( recovery time objectives) refers to the time in which the applications will be online in the secondary site, after a disaster. Whereas, RPO (recovery point objectives) refers to the amount of data loss that would occur in the result of a failover. Certainly, these two factors need to be on the lower standards, which could cause higher costs for your disaster recovery plan. Azure Site Recovery can provide RTO and RPO within minutes out of the box – and at a comparatively lower cost than the competitions.
- Testing- Everyone can make a recovery plan, but it’s essential to be able to verify that it works as needed. Testing other disaster recovery solutions can be time-consuming. Azure Site Recovery makes it possible to execute and verify a test failover scenario with only a few clicks.
Cloud-based disaster recovery solutions are complex architectures that involve lots of moving parts and configuration. The alternative option is to take advantage of DRaaS solutions such as Azure Site Recovery.