An increasingly popular configuration that many companies are using is called a “hybrid cloud.” A hybrid cloud uses dedicated and cloud hosting solutions. A hybrid may also mix private and public cloud servers with colocated servers. This configuration allows for multiple variations on the customization side which is attractive to businesses that have specific needs or budgetary constraints.
Liquid Web calls the scaling process resizing. Resizing scales your server resources up or down. Depending on the specific site or application needs, you can have the configuration you need in a short amount of time. Caveats to completion time include any running server processes, storage or memory used, and backups or other processes that are running. The two options for resizing are Quick Resize and Full Resize.
Varnish Cache is a powerful web application accelerator that can speed up a website by up to 1000 percent. Varnish is typically used for content heavy dynamic websites. It is used by high-profile, high-traffic websites including Wikipedia, online newspaper sites such as The New York Times, The Guardian, The Hindu, Corriere della Sera, social media and content sites such as Facebook, Twitter, Vimeo, and Tumblr. Of the Top 10K sites in the web, around a tenth use this software.
“Guaranteed uptime” is one of the most common buzzwords in the business. Most (if not all) hosting providers offer uptimes of 99.9% and higher. Some cloud hosting companies, like A2 hosting, for example, genuinely deliver on their promises. Yet still, it's important to know how downtimes work. This convenient chart shows, how often your website can still go down with the provider’s “guaranteed uptime”.
Rather than being hosted on one single instances of a physical server, hosting is delivered on a virtual partition which draws its resource, such as disk space, from an extensive network of underlying physical servers. If one server goes offline it will have no effect on availability, as the virtual servers will continue to pull resource from the remaining network of servers.