Businesses around the world have faced different disasters in different region. These disasters raise questions on Data protection and business normalcy. IT disasters like data center failure or Cloud server corruptions can cause disruptions in business around the world and cause huge revenue loss. Talking of disruptions, current pandemic world needs to be prepared for such disruptions due to server overload and less frequent maintenance. When enterprises are better prepared for the frequent disasters, they get fruitful benefits like reduced downtime, better protection against data and reduced total cost of ownership.
Understanding Disaster Recovery
Every region in Cloud Operations is an independent entity within which there may be many availability zones that are connected through low latency network. Further, a local zone is an extension of a region in geographic proximity to the users. Usually, a region consists of 3-5 datacenter and if one of the datacenters is down due to a disruption, it is backed up by other datacenters in a region for the entire period of disruption. But enterprises’ situation can be gloomy in case of a failure of an entire region. In such scenarios, business decision decides cross region failover and we need to stress on two major factors for a better recovery; RTO (Recovery time objective) and RPO (Recovery point objective)
RTO and RPO
In the past, there have been cases where cross region failover has happened. One such incident was back in 2013, infamously called the “Friday the 13th outage”, a load balancing issue in one AWS availability zone in Virginia led to two hours of outage. Luckily, the AWS was quick to respond, resolved the issue and increased provisioning time to prevent recurrence. Similarly, customers of Azure were promised of an uptime of 99.95% for their servers, but in 2019 customers faced three unique downtimes. Consequently, Microsoft Azure servers were provided with additional reliability options for their customers with low to zero-impact maintenance.
In the preceding scenarios, RTO and RPO played an important role in effective recovery. Recovery Point Objective describes the time interval that passes before the data loss during that period exceeds business continuity plan’s maximum allowed threshold. In other words, it is a jargon to understand data loss during an outage. On the other hand, Recovery time objective depends on the business model that how quick the secondary site is up and business is restored.
Cloud DR plan
Cloud experts have been constantly stressing on the importance of a Cloud Disaster recovery plan to be prepared for the worst. Frequent Disaster recovery drills and training your workforce in Cloud Disaster recovery is the first step in executing the plan. It is also important to have an infrastructure design to facilitate disaster recovery. Some enterprises have their primary datacenter in Cloud and secondary datacenter on-prem and some have vice-versa. For such enterprises, it is high time that you start your cloud journey and move both primary and secondary datacenters to Cloud for zero data loss and higher uptime of servers.
Aspire systems has been helping enterprises to move to Cloud and craft them the zero impact Disaster Recovery plan. Our Cloud Consultants have successfully augmented the roadmap for Cloud Operations and Disaster recovery. Talk to our experts today to learn how DRaaS (Disaster Recovery as a Service) can help you in strategizing your Cloud journey.