The difference between virtual host and cloud server

The difference between virtual host and cloud server

1. CVM can support elastic expansion and pay on demand, but virtual host does not.

2. The CVM needs to configure the environment manually, and the virtual host does not need to configure the environment

3. The CVM is an exclusive resource and the resources of the virtual host are shared

4. CVM can be managed by remote desktop, and virtual host can only be managed by ftp.

Operation difference between virtual host and CVM

(I) supply and deployment time

Virtual hosts-days to weeks

CVM-in real time, it can be completed in a few minutes, and you can deploy or install the operating system independently.

(2) Safety and reliability

Virtual hosts-generally: high failure rate of rented white-card servers, basically no ARP, * * and DDOS prevention capabilities, basic no standby and data backup services

CVM-High: built-in ARP defense to enhance DDOS anti-harassment capability on a large scale; share the performance and reliability of brand enterprise-class servers and hardware virtualization; built-in HA; provides a variety of fast recovery measures such as standby, snapshot, data backup, etc.

(3) performance and guarantee

Virtual hosting-- good and guaranteed

CVM-good and guaranteed: same as physical server

(4) elasticity and expansibility

Virtual hosts-expansion requires renting new servers and paying for existing leased resources

CVM-instant supply, on-demand expansion, no need to pay for the original leased resources

(5) cost of ownership

Virtual host-high quarterly annual payment cost, need to pay a deposit for service providers to transfer CapEx expenses; need to maintain their own leased servers, resulting in higher Opex

CVM-the lowest comprehensive cost: no deposit per month, pay on demand, basic zero maintenance, and share the cost advantages of scale, green energy saving and best IT practices

(6) ease of use and manageability

Virtual host-requires a remote control card and is only possible by renting a brand machine, so it is impossible to achieve centralized and unified management

CVM-built-in KVM, customers can centrally manage distributed CVMs through the self-service system, and have full root or Super Admin operating system permissions.