You might have seen companies claiming to offer 100% uptime guarantee for the services they offer. This claim can indeed be considered to be true in case the host is offering Cloud Hosting services.
The cloud is a large infrastructure that has a large pool of servers. Ideally, a site hosted on a Cloud infrastructure is basically placed on multiple servers across the network of servers, unlike the usual hosting solution. By doing this, the websites are capable of using unlimited processing capabilities. Scalability being an important aspect of Cloud, hosts can easily add servers to the cluster hence increasing the pool of resources.
With cloud hosting, hosts can take the risk of offering 100% uptime guarantee to customers, the strength of reliability and scalabilit with zero failover, which further ensures data security and easy accessibility. This nullifies the possibilities where if the site is hosted on a single server faces a malfunction and goes down and leaves your site inaccessible for an unstimulated period of time.
Cloud basically has been successful due to the combination of two technologies ie. Clustering and load balanced dedicated servers. The biggest attractive feature apart from 100% uptime is its cost efficiency, enhanced security, performance, flexibility and its scalability in terms of load balancing, hardware upgrading, and so on. Further, Cloud hosting poses minimal restrictions to a site that is growing in all aspects. Moving further, in typical type of hosting, whenever you wanted to upgrade to a certain web hosting package, downtime was something that could hardly be avoided and migrating the site and the data between servers used to be tedious and involved the risk of loss. All these hassles can be eradicated by opting for the highly advanced Cloud solutions.
Whatever your website requirement might be, the processing power required can be fetched from the pool of resources available with the shared cluster. Adding further to the benefits is the need to pay for only what you’ve been using and nothing extra.