All of us breathe most optimally through our noses, and our elbows, knees, or any other joint in the body will have nothing to do with oxygen intake and delivery. But when people talk about elbow space it can have a very direct and figurative connection to another term – breathing room. Any time you say something needs more elbow room or breathing space it means that the current accommodating environment is too small. More space is needed for the area around you or whatever else it may be. There’s a very valid analogy that can be connected between these expressions and web hosting through a virtual private server.
The primary and nearly exclusive reason that someone will move their site from a shared hosting arrangement to a VPS one is because there website needs more breathing room, elbow space, or whatever you want to call it. Sites that are larger and / or have more dynamic multimedia content will often eventually need to have VPS hosting. Another common scenario is that a site becomes more popular and has more inbound traffic and there’s not enough to accommodate that with shared hosting.
Like any good Canadian web hosting provider we’re keen to make prospective customers aware of what type of web hosting will fit them best, along with explaining what makes one or the other work as well as it does. That’s what we’ll do here with this week’s entry in talking about how hypervisors are an important of what gives VPS hosting the power and potential it does for people who need a more capable environment for their business website.
Understanding what a hypervisor is first requires an understanding what a virtual private server is, and how they work. We have gone over this at length before so we’ll just go over it briefly here. A VPS server is one server that’s split up into many different servers. Try thinking of it as an office building. While there is only one building, it’s separated into different units and there are different businesses or professional service providers renting just one unit for their own use. Having other units right next to you in the same building doesn’t take away from any one of their abilities to operate their business.
This is sort of how a virtual private server works, and what a hypervisor does is allow for truer and more ideal virtualization so that each site is able to function as their webmaster intends with fewer compromises in performance or any other attribute. They are able to install their own operating system, and use their own drivers and software on their own VPS. Quality hypervisors make it so that nothing on a virtual private server will be relying on any underlying software.
Only virtual private servers that use hypervisor visualization will come with this type of technology, and it is most optimally rolled out as part of ones with OS-level virtualization. There is an important difference there, and that’s where we’ll move to next. Full OS-level virtualization means there is an operating system (OS), a kernel, hardware, drivers, and more that will be used by every virtual server located there out of functional necessity.
A VPS without a hypervisor will still be an option for sites that need that space, but you’ll have plenty of constraints when it comes to customization. You’ll still have access to as much bandwidth and storage space as you want, and you can reboot your own virtual server without having any effect on the other websites being run off the physical server. Where you will be lacking is with the ability to customize – you won’t be able to fully customize it as you would be able to with a virtual private server that works with a hypervisor.
A hypervisor-based VPS is also superior for in-site optimization and even the ability to upgrade without leaving your current web hosting package. Otherwise if you need a great deal more resources than what you currently have, or if you’re changing your package completely, you may need to be moved to a different server. Those who need true virtualization and are choosing VPS hosting are advised to make sure that they’re choosing Hypervisor-based VPS and not OS-level virtualization.
As always we are happy to discuss this in further detail with you if you are considering upgrading from shared hosting or starting with VPS hosting to begin with.