1.虚拟专用服务器(VPS):
顾名思义,VPS是一种虚拟主机,实际上可以模拟共享服务器中的专用服务器环境。它使用可在OS级别上运行的虚拟化层,并且一些流行的VPS选项(如OpenVZ)使用基于Linux内核的技术。它提供了一些可伸缩性,即,可以从有限数量的资源开始,然后可以根据需要进行扩展。
2.虚拟专用服务器(VDS):
顾名思义,VDS是一种虚拟机,它为用户提供了租赁托管的专用服务器以构建,部署和托管Web应用程序的能力。它不与其他客户共享,因此不提供任何多租户环境。每个VDS都有自己的磁盘位置,CPU分配,内存,带宽和OS。通常取决于管理程序来创建逻辑分区级别。它还提供了一套专用资源,一个人可以访问而不是与其他租户共享。
VPS和VDS之间的区别:
VPS |
VDS |
---|---|
It is a VM on top of physical server that hosts VPS instances and shares host machine resources. | It provides remote dedicated server. |
VPS is a server that is configured to host multiple server instances. | VDS instance takes up entire server. |
It is more cost-effective as compared to VDS. | It is less cost-effective as compared to VPS. |
It usually offers some scalability and predominant convenience as compared to VDS. | It does not offer scalability and predominant convenience. |
It uses OpenVZ technology where OpenVZ is basically virtualization on OS level and its main advantage is speed of work. | It uses KVM technology that allows installing OS for visitors and VNC, that allows running virtual server like part of desktop computer. |
In hosting terminology, virtual machines created with OS level virtualization is known as VPS. | In hosting terminology, virtual machines created with paravirtualization is known as VDS. |
It offers less functionality as compared to VDS. | It offers better level of functionality as compared to VPS. |
Its operation is managed and controlled by OS. | Its operation is managed and controlled by server hardware. |
It has multi-tenant environment i.e., client has sole access to virtual private server environment, but they share hardware with two or more clients. | It has single-tenant environment i.e., only one client has access to hardware. |
It is good for low load tasks such as to connect remote desktops and collective work with office applications, deployment of small e-commerce, corporate sites, etc. | It is not good for streaming video and audio apps, game servers, and high load apps with increased traffic, large e-commerce projects, etc. |