主机vps与云主机的区别以及云主机的发展

vps与云主机的区别以及云主机的发展

VPS, simply speaking, is a virtual machine that has been aroundfor years, and many users have a better understanding of it.At present, the global cloud hosts can also be regarded as aVPS, but the two are not equal. It can be said that the cloudhost is able to achieve more advanced functions of VPS,especiallywith other cloud products used together, it canmeetmost of the user' s IDC needs. Below, we have to do in thedomestic relatively successful "net cloud" as an example, totalk about the difference between the two.

One, what is VPS?

Virtual private server ("Virtual Private Server", referred toas "VPS") , is simply the use of virtualization technology,physical servers are large into multiple virtual serverresources independently, to meet the needs of different users.These small servers (VPS) have their own operating systems, andtheir operation and management are the same as those of anindependent server. Users can use the VPS server just as theydo with a physical server.

VPS is usually small and suitable for users with relativelysmall business pressures. Users rent VPS and, like renting aphysical server, pay monthly to buy bandwidth. In addition tobeing a virtual machine, VPS is no different from a server inthe traditional sense.

Two, "net cloud" cloud host

"Net cloud" cloudhost is the first truly on-demand use, similar

to Amazon EC2 host products. Service virtualization technology,the network of computing resources into a pool of resources,providing cloud hosting, that is, rental services. Systemavailability SLA index is 99.9%.

Three, cloud host VS VPS

Below, from several aspects to compare "net cloud" "cloud host"and "traditional VPS" distinction.

1) truly on-demand

Cloud host billing granularity is hours, the network inaccordance with the flow of /G billing, unlimited bandwidth,IPby day charges. A lot of domestic customers will ask, "what' sthe benefit of on-demand billing, what does it have to do withme?"". In fact, the biggest advantage of on-demand billing isto allow users to decide whether to use or not, with more orless.

If you want to do a program test, you can apply for a cloud hostin the "grid cloud" and apply within minutes. Then deploy theprogram test, 2 hours later, the test is completed, delete thecloud host, very convenient. Since it is on demand, a good testenvironment, you may only need to spend a few dollars. Thetraditional VPS is usually paid on a monthly or annual basis,with fixed bandwidth, and does not have such flexibilityadvantages.

2) with cloud hard disk, cloud storage, data more secure

Traditional VPS uses servers, local hard disks, and raid at mostto enhance security. However, the hard disk, after all, has abad probability, can not guarantee 100 percent data security.In the network, the cloud hard disk and cloud storage use blockstorage technology, the data cut into N small data blocks, eachsmall data block in different hard disk storage of multiplecopies, full redundancy, can guarantee the absolute safety ofdata. At the same time, also has good scalability, need to usethe number of applications at any time, 1T to 20T optional, andcan immediately use.

3) KVM console, management server worry free

Traditional server or VPS, if there is a server problem, thesystem will not start properly. Users need to plug into thecomputer roomfor display processing, dealingwith trouble longprocess. "Network cloud" using remote KVM technology, throughthe cloud host console, you can remotely grab the servicedesktop, and the local display effect is the same, greatlyincreased the maintenance of convenience.

4) safe and easy console

"Net cloud" cloud host console with mirror production, securitygroup configuration, so that users can rest assured. Mirrorsupport canhold OS full data backup, and users can easily clonea new cloud host from this backup. The function of the securitygroup allows the user to control any port of the cloud hostitself, from HTTP, FTP, SNMP to any TCP and UDP ports. Some VPSalso have similar consoles, but in contrast, the "grid cloud"console features more and more humane.

5) rich models and OS configurations

Net cloud host has a full range of packages, from 512M memoryto 16G memory, support 6 models, Windows/CentOS/ 2 operatingsystems. Sufficient to meet the needs of website operations,application development, software companies and other types ofcustomers. Traditional VPS selection is limited, unable to doa full range of hardware configuration, operating systemsupport.

6) more secure networks, providing network support

"Net cloud" adopts the separation method of internal andexternal network, and provides the security group and the hostintranet for the users. Security groups, like hardwarefirewalls, play a protective role outside the user' s server.The user' s server is separated from other user networks underthe protection of the security group, just like a separate VLANthat will not be affected by other networks, such as offensiveARP attacks. Because all the cloudhosts have intranet, the datainteraction between the internal servers can take the intranet,increase security, andreduce the public network traffic costs.

7) simple network acceleration

Many users use the Internet cloud host because they can buy anduse digital distributionservices togetherwith the cloudhost.Network access speed has been one of the most important issuesfor domestic websites / application providers. In the digitaldistribution service depends on the distribution of nearly 100

nodes distributed throughout the country, the customer' sdynamic and static content to the end user' s browser, is themost effective way to solve theproblemof networkaccess speed.The rising road of cloud server

The arrival of cloud computing can bring direct help to thewebmaster and the entrepreneur, than the cloud server providedby IaaS and PaaS service providers. This is also the topic thatthis project will focus on. For the vast numbers of users whohave become accustomed to traditional hosting services, theconcept of cloud hosting seems to be remote. What is the cloudhost? What' s the difference between hosting and renting?The first stage is the age of virtual host

Since the birth of the Internet, most of the webmaster from the"hosting" (shared host) began to learn the site. 2007 is a yearwhen virtual hosting is very popular. All major virtual hostingproviders in China have introduced various personalizedvirtual hosts, such as business type, professional type, freetype and so on.

Virtual host is to partitiona certain diskspace on the networkserver for users to place the site, application components,etc. , and provide the necessary functions of the site, datastorage and transmission function. The so-called virtual host,also called "web space", is a run on the server on the Internetis divided into a plurality of virtual servers, each virtualhost has independent domain name and complete Internet server(WWW, FTP, E-mail and other support functions) .

The second phase of the independent host is popular

With the development of WEB2.0, network video, podcasts andother newthings hot, cyber source of demand is also increasing,and many large and medium-sized enterprises and large websiteshope to have independent management right, important data andinformation freedom management website. The simple hostingproducts are unable to meet this market demand. So in 2006 afterthe independent host are gradually became popular, independenthost Dedicated Server, refers to the clients independently tohire aserverto displaytheirwebsiteorprovidetheir services,have more space than the virtual host faster, CPU computingindependent advantages, of course, the price is more expensive.Since it is exclusive to the entire server, performance andfreedom is better, the disadvantage is that they must have acertain understanding of server security, otherwise, asecurity hole, the loss will be great.

The third phase of the VPS mainframe outbreak

Because the virtual host is easy to fail because of the serverfault, all the websites can not access, the stability is bad,and the independent host price is higher. VPS host advantageis just between the two, in 2009 began awide range of popularity,webmasters favorite. The host VPS (Virtual Private Servervirtual private server) technology, a serverwill be split intomultiple virtual private server services. Each VPS can beassigned an independent public network IP address, stand-aloneoperating system, independent super large space, independentmemory, independent CPU resources, independent executable

programs and independent system configuration. In addition todistributing multiple virtual hosts and unlimited enterprisemailboxes, the user has more independent server functions andcan install programs independently and restart the server alone.The best choice for high-end virtual hosting users.

Fourth phase cloud server rising

Cloud hosting is a virtualization technology similar to VPShosting. VPS uses virtual software, VZ, or VM to representmultiple independent hosts on a single host, each of which canbe used as a separate operating system, with the same managementmethod as the host. The cloud hosting is a number of similarindependent virtual host part in a group of cluster hosts, eachhost cluster has a mirror on the cloud host, so as to greatlyimprove the safety and stability of the virtual host, unlessthe host of all clusters within all problems will be unable toaccess the cloud hosting. Rental service as a new generationof the host, which integrates high performance servers andhigh-quality network bandwidth, effectively solves thedisadvantages of high price, traditional hosting services suchas uneven, can fully meet the small and medium-sizedenterprises, personal webmasteruser rental service of lowcost,high reliability and easy to host, management needs.

Image comparisons of cloud servers, VPS, and standalone servers1, if VPS is compared to a faucet, the server' s computing andstorage resources are a pipe, there are many taps on the waterpipe. You need to pay the cost of renting the faucet, and itswater flow is limited. If you want to get more water, then you

need to rent more taps, and at the same time, if all the tapsare running, then the water flow of each faucet will decrease.2, and cloud computing under the host (cloud server) , you getis a flow can be large and small tap, the server from one toa group, just like awater pipe into a large water pipes composedof large water pipes. When you need more water flow, you cancontrol your faucet directly to increase the flow. At the sametime, even if all the pipes are running water, it will not affectthe flow of your water. What' s more, the cost you need to payis no longer from the plumbing, but the flow of water you need.3, as for theirown set up or lease the entire server, at present,the economy is much worse, because you have to even tap and waterpipes are bought, and when not enough to buy. We all know thatthe server resource usage rate is usually 20%, unless thebusiness is very stable, will not be significantly increased,you can consider self built.

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