{"id":1189,"date":"2020-06-03T21:43:55","date_gmt":"2020-06-03T19:43:55","guid":{"rendered":"http:\/\/logris.in.ua\/?page_id=1189"},"modified":"2025-05-24T22:49:37","modified_gmt":"2025-05-24T20:49:37","slug":"cloud-structure","status":"publish","type":"page","link":"https:\/\/logris.in.ua\/?page_id=1189&lang=en","title":{"rendered":"Cloud structure"},"content":{"rendered":"<h2>What are clouds and what are they<\/h2>\n<div class=\"content__block blog__content\">\n<div class=\"blog__img blog__img - inner\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" class=\"alignright wp-image-1605 size-full\" src=\"https:\/\/i0.wp.com\/logris.in.ua\/wp-content\/uploads\/2025\/05\/sc-question.png?resize=243%2C153&#038;ssl=1\" alt=\"\" width=\"243\" height=\"153\" \/><\/div>\n<p>New words, especially fashionable ones, often have different meanings for different people. This complicates the communication and complicates the discussion of the subject. These new buzzwords include words related to clouds, computer, public, <a href=\"http:\/\/logris.in.ua\/?page_id=1062&amp;lang=en\"> private <\/a>, hybrid, etc.<\/p>\n<p>There are many reasons for the semantic confusion: new, rapidly developing technologies; multiple traced translation from English; lexical \u201cresearch\u201d of marketers &#8230; However, despite this, it is highly desirable to strive to ensure that the term system in any area of \u200b\u200bactivity becomes more logical, unambiguous, not contradictory.<\/p>\n<h3>What is a cloud?<\/h3>\n<p><b> Cloud <\/b> is a virtual environment in which you can run virtual computers (servers) that can be accessed remotely. Physically, it consists of hardware (powerful hardware computers) and virtualization software (hypervisor).<\/p>\n<h3>What types of clouds exist?<\/h3>\n<ul>\n<li><b> Private Cloud <\/b> is a virtual environment that a particular owner owns and uses for his own needs.<\/li>\n<li><b> Public Cloud <\/b> &#8212; this is such a virtual environment, the owner of which provides services to everyone.<\/li>\n<li><b> Hybrid Infrastructure <\/b> &#8212; is such a computing system in which the resources of both the private cloud and the public are shared.<\/li>\n<\/ul>\n<p>Each of these types of clouds has its own characteristics and advantages.<\/p>\n<h3>Internet<\/h3>\n<p>In general, the \u201ccloud\u201d is not a very computer term. They began to use it, because the Internet in the schemes of computer networks and systems was often designated and is indicated by the image of a cloud.<\/p>\n<p class=\"text-center\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" class=\" wp-image-1237 aligncenter\" src=\"https:\/\/i0.wp.com\/logris.in.ua\/wp-content\/uploads\/2020\/06\/sc_01.png?resize=486%2C188\" alt=\"\" width=\"486\" height=\"188\" srcset=\"https:\/\/i0.wp.com\/logris.in.ua\/wp-content\/uploads\/2020\/06\/sc_01.png?resize=300%2C116&amp;ssl=1 300w, https:\/\/i0.wp.com\/logris.in.ua\/wp-content\/uploads\/2020\/06\/sc_01.png?resize=768%2C297&amp;ssl=1 768w, https:\/\/i0.wp.com\/logris.in.ua\/wp-content\/uploads\/2020\/06\/sc_01.png?w=790&amp;ssl=1 790w\" sizes=\"auto, (max-width: 486px) 100vw, 486px\" \/><\/p>\n<p>The cloud (Internet) in such schemes plays the role of a communication channel through which users gain access to some computers or the services they provide.<\/p>\n<p>Then, marketers came up with the idea of \u200b\u200bconsidering the cloud not only a communication channel, but also computers with services that are accessible via the Internet.<\/p>\n<p class=\"text-center\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" class=\" wp-image-1238 aligncenter\" src=\"https:\/\/i0.wp.com\/logris.in.ua\/wp-content\/uploads\/2020\/06\/sc_02.png?resize=471%2C182\" alt=\"\" width=\"471\" height=\"182\" srcset=\"https:\/\/i0.wp.com\/logris.in.ua\/wp-content\/uploads\/2020\/06\/sc_02.png?resize=300%2C116&amp;ssl=1 300w, https:\/\/i0.wp.com\/logris.in.ua\/wp-content\/uploads\/2020\/06\/sc_02.png?resize=768%2C297&amp;ssl=1 768w, https:\/\/i0.wp.com\/logris.in.ua\/wp-content\/uploads\/2020\/06\/sc_02.png?w=790&amp;ssl=1 790w\" sizes=\"auto, (max-width: 471px) 100vw, 471px\" \/><\/p>\n<h3>Virtual computer<\/h3>\n<p>Further, this is what circumstance arose. Computer resources must be not only affordable, but also reliable.<\/p>\n<p>The desired level of reliability can be ensured by the use of specialized equipment (which is usually expensive), its duplication and redundancy. However, the question immediately arises of the effectiveness of the use of this expensive equipment.<\/p>\n<p>The fact is that the actual level of load on computer systems is quite difficult to predict. To avoid overload, computer systems often design with a very large margin of productivity, with an extremely excessive margin. Sometimes the average level of actual server load does not exceed 20%.<\/p>\n<p>A modern way to increase the efficiency of use of computer equipment is its virtualization.<\/p>\n<p>Historically, operating systems have been quite closely associated with the hardware of computers, that is, on each new computer, first of all, it was necessary to install a certain operating system. Then came the technology of software emulation of the hardware of the computer, which provided a layer between the hardware and the operating system.<\/p>\n<p class=\"text-center\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" class=\"wp-image-1239 size-full aligncenter\" src=\"https:\/\/i0.wp.com\/logris.in.ua\/wp-content\/uploads\/2020\/06\/sc_03.png?resize=790%2C139\" alt=\"\" width=\"790\" height=\"139\" srcset=\"https:\/\/i0.wp.com\/logris.in.ua\/wp-content\/uploads\/2020\/06\/sc_03.png?w=790&amp;ssl=1 790w, https:\/\/i0.wp.com\/logris.in.ua\/wp-content\/uploads\/2020\/06\/sc_03.png?resize=300%2C53&amp;ssl=1 300w, https:\/\/i0.wp.com\/logris.in.ua\/wp-content\/uploads\/2020\/06\/sc_03.png?resize=768%2C135&amp;ssl=1 768w\" sizes=\"auto, (max-width: 790px) 100vw, 790px\" \/><\/p>\n<p>This layer made it possible to transfer the operating system from one physical computer to another without reinstalling it. The main condition for such a transfer is the presence on the other computer of the same or compatible \u201clayer\u201d.<\/p>\n<p class=\"text-center\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" class=\"wp-image-1240 size-full aligncenter\" src=\"https:\/\/i0.wp.com\/logris.in.ua\/wp-content\/uploads\/2020\/06\/sc_04.png?resize=790%2C139\" alt=\"\" width=\"790\" height=\"139\" srcset=\"https:\/\/i0.wp.com\/logris.in.ua\/wp-content\/uploads\/2020\/06\/sc_04.png?w=790&amp;ssl=1 790w, https:\/\/i0.wp.com\/logris.in.ua\/wp-content\/uploads\/2020\/06\/sc_04.png?resize=300%2C53&amp;ssl=1 300w, https:\/\/i0.wp.com\/logris.in.ua\/wp-content\/uploads\/2020\/06\/sc_04.png?resize=768%2C135&amp;ssl=1 768w\" sizes=\"auto, (max-width: 790px) 100vw, 790px\" \/><\/p>\n<p>However, the \u201clayer\u201d allows not only transferring the operating system, but also placing several copies of operating systems (<a href=\"http:\/\/logris.in.ua\/?page_id=1114&amp;lang=en\">virtual machines<\/a>).<\/p>\n<p class=\"text-center\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-1241 size-full\" src=\"https:\/\/i0.wp.com\/logris.in.ua\/wp-content\/uploads\/2020\/06\/sc_05.png?resize=720%2C236\" alt=\"\" width=\"720\" height=\"236\" srcset=\"https:\/\/i0.wp.com\/logris.in.ua\/wp-content\/uploads\/2020\/06\/sc_05.png?w=720&amp;ssl=1 720w, https:\/\/i0.wp.com\/logris.in.ua\/wp-content\/uploads\/2020\/06\/sc_05.png?resize=300%2C98&amp;ssl=1 300w\" sizes=\"auto, (max-width: 720px) 100vw, 720px\" \/><\/p>\n<p>This opens up new possibilities. It is known that replacing one large machine in a certain information system with several small computers of the same type can increase the reliability or performance of this system as a whole.<\/p>\n<h3>Cloud<\/h3>\n<p>Now we come to a more precise definition of the term \u201ccloud\u201d.<\/p>\n<p>The cloud is a place on the Internet where users are provided with the computing resources of virtual computers. This location is determined by the domain name or IP address.<\/p>\n<p>It is obvious that communication with virtual computers is also carried out via the Internet, in remote access mode.<\/p>\n<p class=\"text-center\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" class=\"wp-image-1242 size-full aligncenter\" src=\"https:\/\/i0.wp.com\/logris.in.ua\/wp-content\/uploads\/2020\/06\/sc_06.png?resize=790%2C320\" alt=\"\" width=\"790\" height=\"320\" srcset=\"https:\/\/i0.wp.com\/logris.in.ua\/wp-content\/uploads\/2020\/06\/sc_06.png?w=790&amp;ssl=1 790w, https:\/\/i0.wp.com\/logris.in.ua\/wp-content\/uploads\/2020\/06\/sc_06.png?resize=300%2C122&amp;ssl=1 300w, https:\/\/i0.wp.com\/logris.in.ua\/wp-content\/uploads\/2020\/06\/sc_06.png?resize=768%2C311&amp;ssl=1 768w\" sizes=\"auto, (max-width: 790px) 100vw, 790px\" \/><\/p>\n<p>Thus, the two main distinguishing features of the cloud are:<\/p>\n<ol>\n<li>use of virtual computers;<\/li>\n<li>access to them over the Internet.<\/li>\n<\/ol>\n<p>In the sense of the applied use of a virtual computer, it can be completely perceived as an ordinary \u201ciron\u201d computer, which is installed somewhere far away, and accessed through the network.<\/p>\n<h3>Cloud types<\/h3>\n<p>When discussing computer clouds, the adjectives \u201cpublic\u201d or \u201cprivate\u201d are most often added to them. Technologically, a public cloud is not much different from a private cloud, and vice versa.<\/p>\n<p>The differences between them come down to who owns the <a href=\"http:\/\/logris.in.ua\/?page_id=1108&amp;lang=en\"> infrastructure <\/a> and who owns it drives.<\/p>\n<h4>Public Cloud<\/h4>\n<p>If the owner of the cloud provides an opportunity for everyone who has paid for the service to receive one or more <a href=\"http:\/\/logris.in.ua\/?page_id=1114&amp;lang=en\"> virtual servers <\/a> in this cloud, this cloud is <i> public <\/i>.<\/p>\n<p class=\"text-center\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-1243 size-full\" src=\"https:\/\/i0.wp.com\/logris.in.ua\/wp-content\/uploads\/2020\/06\/sc_07.png?resize=790%2C445\" alt=\"\" width=\"790\" height=\"445\" srcset=\"https:\/\/i0.wp.com\/logris.in.ua\/wp-content\/uploads\/2020\/06\/sc_07.png?w=790&amp;ssl=1 790w, https:\/\/i0.wp.com\/logris.in.ua\/wp-content\/uploads\/2020\/06\/sc_07.png?resize=300%2C169&amp;ssl=1 300w, https:\/\/i0.wp.com\/logris.in.ua\/wp-content\/uploads\/2020\/06\/sc_07.png?resize=768%2C433&amp;ssl=1 768w\" sizes=\"auto, (max-width: 790px) 100vw, 790px\" \/><\/p>\n<p>A good example of a public cloud is the Logris cloud. We will help you create the right number of <a href=\"http:\/\/logris.in.ua\/?page_id=1114&amp;lang=en\"> virtual servers <\/a> or virtual networks.<\/p>\n<h4>Private Cloud<\/h4>\n<p>If a certain enterprise, using cloud technologies, built a cloud on its equipment for its internal corporate needs, such a cloud is called <i> private <\/i>. Private cloud equipment can be located both in the &#171;territory&#187; of its owner, and in the data center (DPC).<\/p>\n<p class=\"text-center\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-1244 size-full\" src=\"https:\/\/i0.wp.com\/logris.in.ua\/wp-content\/uploads\/2020\/06\/sc_08.png?resize=790%2C435\" alt=\"\" width=\"790\" height=\"435\" srcset=\"https:\/\/i0.wp.com\/logris.in.ua\/wp-content\/uploads\/2020\/06\/sc_08.png?w=790&amp;ssl=1 790w, https:\/\/i0.wp.com\/logris.in.ua\/wp-content\/uploads\/2020\/06\/sc_08.png?resize=300%2C165&amp;ssl=1 300w, https:\/\/i0.wp.com\/logris.in.ua\/wp-content\/uploads\/2020\/06\/sc_08.png?resize=768%2C423&amp;ssl=1 768w\" sizes=\"auto, (max-width: 790px) 100vw, 790px\" \/><\/p>\n<p>Technologically, a private cloud is the same cloud as a public cloud, but used exclusively within one enterprise or organization.<\/p>\n<p>We have a service called &#171;<a href=\"http:\/\/logris.in.ua\/?page_id=1062&amp;lang=en\">Private Cloud<\/a>&#171;. The virtual network created by the client as part of this service formally remains part of the public cloud, but it is so well isolated from other parts that it differs little for the third-party user from the described canonical private (corporate) cloud.<\/p>\n<h3>Comparison of cloud types<\/h3>\n<p>As already noted, the differences between public and private clouds are mainly related to ownership of equipment and areas of responsibility (control). These features are illustrated in the following figures.<\/p>\n<p class=\"text-center\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" class=\"wp-image-1245 size-full aligncenter\" src=\"https:\/\/i0.wp.com\/logris.in.ua\/wp-content\/uploads\/2020\/06\/sc_09.png?resize=790%2C283\" alt=\"\" width=\"790\" height=\"283\" srcset=\"https:\/\/i0.wp.com\/logris.in.ua\/wp-content\/uploads\/2020\/06\/sc_09.png?w=790&amp;ssl=1 790w, https:\/\/i0.wp.com\/logris.in.ua\/wp-content\/uploads\/2020\/06\/sc_09.png?resize=300%2C107&amp;ssl=1 300w, https:\/\/i0.wp.com\/logris.in.ua\/wp-content\/uploads\/2020\/06\/sc_09.png?resize=768%2C275&amp;ssl=1 768w\" sizes=\"auto, (max-width: 790px) 100vw, 790px\" \/><\/p>\n<h3>Hybrid Infrastructure<\/h3>\n<p>A specific information system can be built using elements located both in a private (corporate) cloud and in a public cloud.<\/p>\n<p class=\"text-center\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-1246 size-full\" src=\"https:\/\/i0.wp.com\/logris.in.ua\/wp-content\/uploads\/2020\/06\/sc_10.png?resize=790%2C589\" alt=\"\" width=\"790\" height=\"589\" srcset=\"https:\/\/i0.wp.com\/logris.in.ua\/wp-content\/uploads\/2020\/06\/sc_10.png?w=790&amp;ssl=1 790w, https:\/\/i0.wp.com\/logris.in.ua\/wp-content\/uploads\/2020\/06\/sc_10.png?resize=300%2C224&amp;ssl=1 300w, https:\/\/i0.wp.com\/logris.in.ua\/wp-content\/uploads\/2020\/06\/sc_10.png?resize=768%2C573&amp;ssl=1 768w\" sizes=\"auto, (max-width: 790px) 100vw, 790px\" \/><\/p>\n<p>The diagram shows one of the many possible options for a hybrid infrastructure. It can be built from several public clouds or from several private clouds, as well as any combination thereof.<\/p>\n<p>The principal sign of a hybrid cloud infrastructure is the use in the same information system of elements located in several clouds (it does not matter, the same or different types).<\/p>\n<p>Often, a hybrid cloud is simply called the simultaneous sharing of different types of clouds.<\/p>\n<\/div>\n<hr \/>\n","protected":false},"excerpt":{"rendered":"<p>What are clouds and what are they New words, especially fashionable ones, often have different meanings for different people. This complicates the communication and complicates the discussion of the subject. These new buzzwords include words related to clouds, computer, public, private , hybrid, etc. There are many reasons for the semantic confusion: new, rapidly developing technologies; multiple traced translation from English; lexical \u201cresearch\u201d of marketers&hellip; <\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-1189","page","type-page","status-publish","hentry","clearfix"],"jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/PaJGHN-jb","_links":{"self":[{"href":"https:\/\/logris.in.ua\/index.php?rest_route=\/wp\/v2\/pages\/1189","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/logris.in.ua\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/logris.in.ua\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/logris.in.ua\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/logris.in.ua\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1189"}],"version-history":[{"count":19,"href":"https:\/\/logris.in.ua\/index.php?rest_route=\/wp\/v2\/pages\/1189\/revisions"}],"predecessor-version":[{"id":1688,"href":"https:\/\/logris.in.ua\/index.php?rest_route=\/wp\/v2\/pages\/1189\/revisions\/1688"}],"wp:attachment":[{"href":"https:\/\/logris.in.ua\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1189"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}