Cloud hosting and vps hosting are very similar in many ways. Many times what people refer to as cloud hosting is just a renamed vps hosting architecture. Let’s take a look at a breakdown of cloud hosting vs vps hosting –
Cloud Hosting is a service that provides web hosting, or any other service, for any type of application by using a virtual machine. A virtual machine is very similar to using a traditional dedicated server. The differences can be very subtle between vps hosting and cloud hosting, and there are so many similarities. We will briefly touch on each of the architectures and what makes them different.
Clients who use cloud hosting can tap into their services as much as they need depending on the current demands of their website. Usually this has an upper limit, just like with vps hosting. Most containers whether they be traditional vps hosting, or cloud based hosting, can have their resources upgraded on the fly with no downtime.
A great feature of cloud based hosting is that usually there is some level of high availability fail-over available to the client, sometimes for an extra price. The HA (high availability) can be gained with virtual san or traditional san disk setups. Sometimes HA can be gained in cloud hosting by your provider mirroring your data to another datacenter in a different location entirely. Not all cloud based providers offer this service. Check with your provider to see if they offer it.
Some articles you will find on the web say you can’t scale vps hosting in the same way that you can cloud hosting due to the resources of the dedicated machine that the container sits on. I call bologna. Have you ever tried to get an insane amount of compute cores that isn’t possible on a single dedicated server into a virtual machine? It isn’t possible if you are on cloud hosting or vps hosting. Memory will also always have an upper limit of the amount of RAM on the box. Sure there are technologies like RDMA with ROCE or iWARP but those are used for transferring vms instantly to another host in case of node failure in HA or load balancing rules. No virtualization technology uses these in a way that lets you overcome a physical machine’s hard limit on the amount of RAM that can be put in that physical machine.
There isn’t anything stopping providers from attaching an ISCSI or SMB share to traditional vps hosting boxes either to remove the upper limit of storage that a single box can hold. They can also setup some node to node mirroring of your container in a traditional vps hosting setup for HA and put a load balancer in front of it.
So at what point does vps hosting become cloud hosting? How much different is VPS Hosting from cloud hosting? The short answer is that it isn’t very different and the same thing can usually be accomplished with either set of technology. I’ll say it more clearly, Cloud Hosting and VPS Hosting are pretty much the same things just with different names. So if you hear people talking about cloud hosting and you’re not sure what it is, just remember it’s pretty much the same thing as VPS hosting with very slight differences.
Reliability – By using a cloud host or vps host you can rest assured that your website will never go down if you are using the HA features. No matter what happens your site will stay active and live. Anyone who uses traditional servers knows that if power goes out, or there is a node failure, your site can go down. Not with cloud hosting, cloud hosting is very reliable.
Flexibility – The resources that come with cloud hosting and vps hosting are available in real time and in on demand situations. Your site will not be constrained any longer by the 1 server that you were previously using to host your services. You can upgrade resources on the fly.
Savings – The cost of using a virtual server is a lot less expensive than it is to use a traditional server to host your web site due to it’s shared nature. Just think of all the things you can do with the savings. Some providers even offer hourly billing.