Differences between Vm instances and VPS

VPS (Virtual Private Server Virtual Private server) divides a server into multiple virtual private servers for high-quality services. Each VPs can be assigned an independent public network IP address, independent operating system, independent ultra-large space, independent memory, independent CPU resources, independent execution programs, and independent system configurations. In addition to multiple virtual hosts and unlimited enterprise mailboxes, you can also have independent server functions. you can install programs and restart the servers separately.

 

Cloud hosting is a virtual server cluster. The host company makes its hardware and network lines into a "Cloud", and then provides some network interface APIs to this "Cloud" for customers to use. At this time, each customer no longer shares a specific server, but all servers in the cloud.

 

We can discuss the differences between Vm instances and VPs in the following six aspects:

 

(1) Supply and deployment time

VPS-instant, no OS installation required

Cloud host-real-time, just a few minutes to complete, one-click deployment, or independent installation of the Operating System

 

(2) security and reliability

VPS-difference: program defects, ARP spoofing, viruses, and resource occupation installed on other VPs instances on the same physical server will seriously affect itself. Basically, no ARP, Trojan, or DDoS Defense Capabilities

Cloud host-high: built-in ARP defense, scale-up to improve anti-DDoS capabilities; Share the performance and reliability of brand enterprise-level servers and hardware virtualization, built-in ha; provides a variety of quick recovery measures, such as backup machines, snapshots, and data backups.

 

(3) performance and assurance

VPS-poor: the performance is average and only suitable for small-scale concurrent access. The performance is not guaranteed and is vulnerable to the extrusion of other VPs on the same physical server.

Cloud host-good and guaranteed: Same as physical server

 

(4) elasticity and scalability

VPS-fast resizing, subject to the configuration of a single server

Cloud host-real-time supply, on-demand scaling, no need to pay for original rental Resources

 

(5) cost of ownership

VPS-low-configuration VPs rental prices are the lowest; however, low security and reliability and unguaranteed performance result in unguaranteed service quality, difficult to control and high operating costs

Cloud host-lowest overall cost: no monthly deposit, pay-as-you-go for on-demand usage, and basic Zero maintenance. You can also share the cost advantages of scale, green energy saving, and Best IT practices.

 

(6) ease of use and easy management

VPS-provides a single-host management interface with no root or super administrator operating system permissions. The management flexibility is subject to the management interface.

VM instances-with built-in KVM, the customer can centrally manage VM instances distributed in different regions through the self-service system. They have full root or super administrator operating system permissions.

 

From the technical theory, stability and reliability are of course good for cloud hosts, but currently the cloud hosts are not mature. Enterprises can select suitable spaces based on their actual conditions.

 

Differences between Vm instances and VPS