A Dedicated Cloud Server has various advantages over a Virtual Private Server. Below are few highlights:
- VPS is NOT the same as Dedicated server and as such can NOT replace a Dedicated server
- If you need a lot of CPU, memory, and I/O resources VPS will NOT work for you
- If your application requires a lot of heavy I/O such as Database, Streaming, lots of web traffic - you should go with a Dedicated server. The VPS bottleneck is I/O resources which at some point become a major bottleneck and you will be forced to upgrade to a Dedicated server
- VPS should NOT be used for mission critical applications! If the uptime and performance are critical factor than a Dedicated server is a MUST have and here is why:
- NOT all resources of a VPS are reserved ONLY for your VPS. For example I/O sharing, network port sharing, and burstable memory sharing can impact your site and account performance (this is an architectural limitation and not a limit enforced by us).
- The VPS performance and stability maybe impacted if the actual hardware node hosting your VPS becomes unstable which can happen in certain (rare) cases if another VPS is abusing the shared I/O resources of the node or if there is a problem with the node (for example operating system crash).
- Maintenance of the hardware node requires shutdown and reboot of all VPS servers on the node; thus increased downtime.
- The Linux/Windows VPS kernel can not be updated. You can not update on your own your VPS operating system and can not perform any system related updates.
- Low level drivers, which requires kernel changes/updates cannot be installed in the VPS. For example some VPN software won't work in VPS environment.
- You can NOT use swap in the VPS, which means that your VPS will be limited to the actual VPS memory.
- You cannot perform custom OS updates as all updates have to be first verified by the VPS software vendor.
If it is crucial for you to keep your website alive while offering maximum performance, then the best option is CHROMEIS Dedicated Cloud server.
Last, if you are currently using a Dedicated server and thinking switching to a VPS we recommend to think twice.
