In terms of backups, databases and files, it all depends on the type of setup you choose. If you choose a server with a control panel it will make it effortless but if you want to do it manually, i suggest you take some time to learn how to do it properly, because, one error and you might loose everything you have worked for. My suggestion for a best server setup is a cloud managed cPanel VPS with SSD and good backup tool.
VPS has clear advantages for website hosting as it offers a huge level of flexibility over shared website hosting, without stretching your budget to a dedicated server. A VPS offers you an environment for development and testing for your website hosting. For example, you could choose to have a VPS dedicated to testing and a separate VPS running simultaneously for your live or production websites. Without the need for two physical servers you can safely debug software, install major changes and software updates in a secure environment without affecting your live websites. You can also use a VPS for back-up or file storage. It's easy to switch between virtual servers so you can protect and maintain website visibility online even while undergoing extensive development work.
It works quite like shared hosting, as both of them are virtual hosting. However, shared hosting does not allow to extend or modify server settings. VPS hosting is more like a dedicated physical server on a virtual platform. You can manage and set up VPS for your requirements, as it is a separate server. Also, VPS server can be operated by a control panel that can be installed with a few clicks from the client system or the terminal command line. It means that you can even choose the same control panel as it is on shared hosting.
Unmetered hosting is generally offered with no limit on the amount of data-transferred on a fixed bandwidth line. Usually, unmetered hosting is offered with 10 Mbit/s, 100 Mbit/s or 1000 Mbit/s (with some as high as 10Gbit/s). This means that the customer is theoretically able to use ~3 TB on 10 Mbit/s or up to ~300 TB on a 1000 Mbit/s line per month, although in practice the values will be significantly less. In a virtual private server, this will be shared bandwidth and a fair usage policy should be involved. Unlimited hosting is also commonly marketed but generally limited by acceptable usage policies and terms of service. Offers of unlimited disk space and bandwidth are always false due to cost, carrier capacities and technological boundaries.