Comparing the cloud giants: Uptime and reliability


Many businesses depend on cloud computing to run their operations and has become an important aspect for the success of any company. Any outage can lead to important cost losses. Cloud uptime is therefore crucial to any businesses as well as the the overall economy. In this context, AWS, Microsoft Azure or Google Cloud are the main public cloud actors to take into account when comparing uptime and reliability. 

Ensuring the cloud platform uptime is crucial for any business as it maintains data and all important applications running. Furthermore, it assures customers’ loyalty and company’s productivity, so it becomes essential to have a reliable vendor which provides access to all information related to platform’s downtime and availability.

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Choosing the right cloud service

Google Cloud, Amazon Web Services and Microsoft Azure are the biggest names in the public cloud computing industry. They control over 70% of the market thereby making them the industry leaders. For Amazon Web Services, Google Cloud and Microsoft Azure, uptime is of utmost importance as many clients rely on their cloud services to run their operations, from big companies to the small businesses with minimal budgets, its therefore in everyone’s interest to keep these three up and running effectively.

Cloud outage, though rare has occurred at one time or the other such as the Amazon Web Services outage in 2011 and the Microsoft Azure outage in 2013 which lasted half a day with the second one lasting a little over 7 hours. This caused huge losses. When selecting the cloud service of choice, it is therefore important to consider the history of its downtime which signifies its reliability. 


Which cloud vendor is more reliable?

Of the three technology giants, Microsoft Azure has significantly more outage than AWS or Google Cloud Platform. A survey done by cloud computing expert, Zeus Kerravala, showed that from 2018 to May 2019, Microsoft Azure had over 1,934 hours of outage compared to AWS and Google Cloud Platform who recorded significantly fewer hours. Of the two that recorded fewer hours of outage, Amazon Web Services only registered 338 hours compared to 361 hours registered by Google Cloud Platform. In terms of versatility, AWS tops the list, it has highly customizable public cloud service and its administration controls available through their web client.

Users can access features such as auditing and creation of encryption keys. Microsoft Azure is also versatile with its windows and Linux compatibility but is expensive to use. Google Cloud Platform is affordable to many businesses but it is complex when setting up. Setting up Google Cloud poses a challenge to many non-IT users, hence one may require an expert to set it up.

Regional information is also another factor to be taken into account, as it reflects the impact of interruptions in all services. As for regional outage reports, AWS is the one that shows thorough information about every service and downtime hours for each. Opposite to AWS is Microsoft Azure which only provides general outage impacts for each region as one.



Cloud services are important for small and big business alike because setting up your cloud infrastructure may be very expensive, and in the long run, you may require to hire standby IT personnel or company to maintain the service in case of downtime. It is, therefore, crucial to do your research before deciding on which cloud computing provider you will select as any downtime will put you at risk of losing revenue.


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