How to designate a virtual server? Dedicated servers. How to choose the right data center

In these articles, we explain the main vіdmіnnosti between physical and virtual servers at a glance of the client. We will also try to rozvincha on the path of deaky myth. Please help private individuals and companies to take more important decisions when buying a server.

Physical server (this is the name of the vision server)

The physical server is, as the name suggests, a server (physical computer), which has a working operating system, like Windows, like Linux, like any other computer. Physical servers and practical skrіz, desktop computers, for a large number of improvements, as if not a desktop PC, which shows such speeches, as backup blocks of life, RAID controllers, sprat mesh cards and etc. The physical servers are larger in size with the larger strain components in general. Usі stinks vymagayut okremy mіstsya at the server station. More servers can also have two or more physical processors and skins with more cores.

Virtual server (VPS or otherwise virtual machine - VM)

In order for us to understand the concept of virtual servers, it is our responsibility to explain the three things that make virtualization work.

Hypervisor – Operating system or software security in the operating system, as a computer environment, in which it was created, the virtual machine was launched.

This means that the hypervisor can be recognized by software (type 2 hypervisor) or can act as a hypervisor of the entire operating system (type 1 - hypervisor, either “Bare Metal Hypervisor” or “Embedded Hypervisor”). Apply 2 types of hypervisors include Oracle VirtualBox, VMware Workstation and Microsoft VirtualPC. Applications of one type of hypervisors include VMware ESXi (VSphere), Microsoft Hyper-V, KVM, Xen and others. Rest - type 1 hypervisor - everything can be installed the same way as the operating system is installed on the server. If the hypervisor is installed on the server, then the resources are equally distributed between virtual machines In this manner, one server can serve hundreds of virtual machines.

After the creation, the virtual machine behaves as it is, like any other computer, you can turn it on and take over the operating system, just like it is on some other computer. The operating system is aware of what is on the physical computer. A virtual skin machine may well be called virtual machine security. VM can have its own processor, hard drive and mesh interface. This means that the virtual machine does not know what the virtual machine is, so there will be no software security on the other side, to reveal, for the help of other benefits.

Physical versus virtual servers, pros and cons

Now, as far as we understand the concept of virtual servers, we can develop a more intense relationship as from the point of view of the client.

Physical shortcomings of the server

• More expensive, lower virtual server (VPS)
  just through the resources needed to launch that support of a physical server, stink too expensive.
• More important than keruvati
  The physical servers are full of richly skladnіshe keruvati. This is especially important for inspiration in times of trouble. So, just like on any other car, there will be a day, if through a number of low reasons the server knows of failure. In these cases, updating from backups is a real nightmare, the oscillator server is to blame for updates from scratch to a different (new) server, and then it is to blame for updating from backups. For mission-critical production systems, ze means take 8 or more years of downtime. For the sake of the company, they create clusters of two or more servers, but, obviously, a few more windows.
• Hirshescaled
  It is impossible for me to upgrade the server without additional downtime. In addition, it should be noted that possible updates for the seen server are to be accepted to respect when the server is fixed. Otherwise, the update can be done before the creation of a new server. Deputy of that, to bring up unplanned migration of services and, in such a rank, unscheduled downtime in the service.

Physical pro servers

• Larger hard, lower virtual server
  This is the only reason why you are to blame for the vision server. Otzhe, let's marvel at the truth in vіchi, as we have a physical server with 8 GB operational memory and dual-core processor, and create an exact copy of the virtual machine with the same parameters, the physical server will provide better results. This is due to the fact that the physical server does not suffer from high places, as it is present on virtual machines.

Virtual servers - minus

• More low productivity in pairs with other servers
  As has already been explained earlier, virtual machines tend to be less productive than physical servers due to a number of reasons. The main reason is the narrow space between the VM and the hypervisor itself. The greater number of vipadkiv tse does not have any significance, so that this small amount can be easily made for the preparation of clusters from three or more virtual servers. First of all, SSD disk technology has added significant productivity to virtual machines.

Virtual pro servers

• Cheaper, lower view server
  Virtual machines, deployed on physical servers can serve hundreds of virtual machines. Resources, which can be distributed among virtual machines, and therefore virtual machines take up very few resources on the Batkiv server, which significantly reduces their wares.
• Sproschene keruvannya
  In the main, the greatest advantage of virtual machines, like stench, mayut in front of physical servers. A virtual machine is easier to hack than a physical server. For example, at the hour of installation of the physical server, it is necessary to viconate a large rebuild plan hardware security server ta yoga peripheral buildings that perekonaєtsya, scho pratsyyut stinks correctly. As it does not work, as intended, the additional drivers are due to be installed and adjusted. If the virtual machine is fired, the virtual machine accepts drivers from the Batkiv host, in this order, the virtual machine is ready to work negligently. I only have one butt from bagats.
• Easier backup copy and update
  On the skin physical server, the necessary manifest, so that you can robite її configuration, addendums that may be not guilty buti backup copies for virtual machines, broken down backup copies from the virtual machine. If there are any reasons for that, the backup copies are ready, but they will be updated in a negligent way and in general, the VM will be replaced by that. It is obvious that in such vipadkas, the downtime is significantly reduced.
• Scale and flexibility
  There is not much time for downtime for resource planning (planning) renewal due to the large amount of operational memory, processor fatigue, disk space, etc.
• Ideal choice for any kind of web service
  Chi tse small blog or big social network With thousands of views per day, a VPS system can be easily adjusted to suit your needs. In times of need, more VPS can be quickly and easily added to the cluster, which serves different aspects of the web service.

So is a virtual physical server needed for my business?

Short note - 99.9% hour, VPS is the best choice.

Virtualization as a technology is getting better and better every day. Practically, the leather company in the world took virtualization to a perfect level. If you don't need the real power of a seen server and you also have a big business budget, there are no other reasons why you shouldn't choose VPS. The VPS system, especially based on SSD, is secure and easy to manage.

• Dedicated server, or a physical server, is the most productive way to serve hosting. Renting a video server will be a miracle solution for your business websites, corporate resources, game servers, and foldable web add-ons.
• On top of shared hosting and VPS, if you happen to share resources with other providers, with Dedicated you will take away all the pressures that are expected within the framework of the service. That website hosting on the server guarantees a high level of protection: do not share the server with other sites, as they may be susceptible to attacks by hackers.
• Renting a visible web-server and SRS (data collection systems) from a data processing center (data processing center) is more productive stationary computer at the data center on Windows or Linux with a special set of programs for the song term. We are safe server for secure connections with the Internet on a speed of up to 10 Gbit / s, permanent connections to electricity and professional technical support, to help you get behind the hardware and software folds.
• Another reason orendi server hosting at the site - modern and secure data centers, in which there are seen physical servers and dedicated - data centers are deployed in Moscow and are one of the best in Russia. Dzherela is vicorated at data centers uninterrupted life, fire extinguishing systems and air conditioning. Tse secure uninterrupted work servers and your projects.

Seen servers based on Intel Xeon processor

• On the site you have a few options for choosing the optimal server configuration:
• 1. Get ready server. For additional filters, you can choose the right car for your budget and needs.
  2. Speed ​​up the configurator and independently select components for the server.
  3. Write us a request and change the unique configuration of the server.
• Before the services of Dedicated-Servers are available, you can gain new freedom in the choice of software to be installed, as well as control over the possessions: bus bandwidth, memory and disk. The price of renting a seen server for a month is to lie down according to its parameters and characteristics.
• You can rent a vision server from the data center (data center) with the upgrade of processors Intel Xeon: E, E3, E5, gold, silver, W in different configurations SSD drives, SATA or SAS, depending on how much harder you need.
• How much does it cost to rent a server for the site? The price of such a service, as a rule, is higher for VPS and virtual hosting. Get respect for the “Cheap Servers” distribution: you can buy (rent) a video of Dedicated servers for a website in a data center (data center) from a new one at the lowest rate per month.
• Seeing a server for rent is a cheap, secure and secure hosting that will give a lot of opportunities for companies that information systems, sites and projects will require a wholesome uninterrupted work, large number of resources and disk space to save and backup information.

Those, who are trying to create and conduct powerful projects on the Internet, sooner or later cling to the power of disk space. The advantages of buying a hosting are obvious: the machine works as normal, it is connected to a high-speed Internet channel just fine. Axis only what kind of server in this situation choose: virtual chi physical? How can I help them to establish the principles of retail? Let's get smart.

We understand

First, what should be done at the right side of the service of various species, - be careful, what the stench is:

• Physical (dedicated) server - this is the machine’s okrema, on which files are placed only on your resource (or resources), and the keeper is taken to it full access both software and hardware.
• Virtual (VDS) server - one of the impersonal emulators, hosted on one computer. Functionally, it’s practical to make a copy of the physical server, and proteo hygienists have to share a car with other speakers, whose number (deposit due to tightness of the hall) can be killed by hundreds.

Analyze the benefits

The coming crock, which approaches us to the point of nutrition “what to choose” - ce equalization of characteristics. Even though they are stale, the resource is productively functional. For clarity, let's use the results of the table:

Formulyuemo vysnovki

So which server to choose in the result: physical or virtual. Navit now, if we know the "plus" and "minus" of both options, there is no clear difference here. All of them demonstrate the special relish and perevagi of the future orendar.

Physical servers - choose quiet, who can be calmly convinced that there is a real computer there, which does not need to be shared with a third party. Also, they have zatsіkavlenі vlasniki, whose Internet resources can be installed on the server of specific hardware / software. Virtual machines fall to the likes of those who do not sound overpaid for their services. In the midst of their koristuvachs, people are being moved, who will appreciate the superiority of the Maidanchik and the mobility of it.

Now we know why we use the key difference between servers. different types. And which of them did you take from the results?