
Share the Blog Post
Some Downtime Facts
Did you know that 80% of Data Center Managers have experienced some type of outage in the past 3 years and that 40% of organizations have suffered a major outage caused by human error over the past three years and that 76% of organizations suffered downtime and data loss in 2021?
I often get the question “How does HA differ from DR?” from my customers. They are two related, but confusing terminologies that protect against failure eventually. Simply, High Availability is about eliminating a single point of failure. Disaster Recovery is getting back the system operational after suffering a failure or downtime. In other words, DR will take over when HA fails.
High Availability
What does HA Mitigate?
- Against a single point of failure.
- Issues while the system is running.
- It comes as a step before DR.
- Implies redundancy.

Disaster Recovery
- Recovery Time Objective (RTO)refers to the amount of time you need to bring a system back online.
- Recovery Point Objective (RPO)is a business calculation for acceptable data loss from downtime.

Why does this matter?
When choosing between high availability and disaster recovery, it’s important to consider your specific business needs, budget, and risk tolerance. Evaluate the potential impact of downtime and data loss and choose a solution that aligns with your goals and priorities. Remember that both approaches can be used together for maximum protection and resilience.

Abdalrahman Nasser
Abdelrahman has a wealth of experience in Cloud Technology sales, pre-sales, and post-sales activities, spanning over 5 years with leading cloud security vendors such as Microsoft, Oracle, and RSA Security. He possesses a deep passion for sharing knowledge and has chosen to deliver online training on cloud technology, security, and networks along with serving as a cloud consultant and product expert. Abdelrahman takes on a multitude of responsibilities, including providing consulting services, delivering technical roadmap designs, and facilitating the hands-on experience for clients.