In traditional shared, VPS or dedicated virtual server hosting solutions, a single physical server is virtualized and designed to hold as many tenants as the plan dictates. As a result, high reliability levels are attainable, but 100 percent uptime is impossible.
According to a recent report from the Host Review, cloud hosting makes 100 percent uptime a reality by changing the architecture behind traditional hosting plans. In a cloud hosting plan, such as a cloud-enabled VPS server, the virtual machine is no longer limited to functioning on its base physical server. Instead, the cloud connects multiple servers, essentially turning them into a single physical device.
As a result, the virtual machine can easily be moved or scaled from one physical server to another if the need arises. This makes 100 percent uptime a reality because the virtual machine can be immediately moved to another server if its original host experiences a malfunction or requires maintenance.
A recent report from the Hosting News said cloud hosting is still a relatively immature technology. However, it has come far enough in its early years that it can be considered a reliable and powerful web hosting service, the report said.
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