{"id":30642,"date":"2019-10-31T21:36:41","date_gmt":"2019-10-31T18:36:41","guid":{"rendered":"https:\/\/prohoster.info\/blog\/open-rack-v3-chto-zhdat-ot-novogo-standarta-arhitektury-servernyh-stoek\/"},"modified":"2019-10-31T21:36:41","modified_gmt":"2019-10-31T18:36:41","slug":"open-rack-v3-chto-zhdat-ot-novogo-standarta-arhitektury-servernyh-stoek","status":"publish","type":"post","link":"https:\/\/prohoster.info\/pt\/blog\/administrirovanie\/open-rack-v3-chto-zhdat-ot-novogo-standarta-arhitektury-servernyh-stoek","title":{"rendered":"Open Rack v3: o que esperar do novo padr\u00e3o de arquitetura de racks de servidor","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<h5>Ele encontrar\u00e1 aplica\u00e7\u00e3o em data centers hiperescal\u00e1veis.<\/h5>\n<p>\n<noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/it-grad\/blog\/446118\/\"><img decoding=\"async\" alt=\"Open Rack v3: o que esperar do novo padr\u00e3o de arquitetura de racks de servidor\" src=\"\/wp-content\/uploads\/2019\/03\/88df68b47e3d4d4d315047f9b38c4839.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/a><\/noindex><br \/>\n<i>\/ \u0444\u043e\u0442\u043e <noindex><a rel=\"nofollow\" href=\"https:\/\/www.flickr.com\/photos\/pierrotcarre\/4450487354\/\">Not4rthur<\/a><\/noindex> <noindex><a rel=\"nofollow\" href=\"https:\/\/creativecommons.org\/licenses\/by-sa\/2.0\/\">CC BY-SA<\/a><\/noindex><\/i><\/p>\n<h2>Por que a especifica\u00e7\u00e3o foi atualizada<\/h2>\n<p>\nEngenheiros do Open Compute Project (OCP) <noindex><a rel=\"nofollow\" href=\"https:\/\/www.opencompute.org\/news\/introducing-the-open-rack\">apresentaram a primeira vers\u00e3o<\/a><\/noindex> do padr\u00e3o ainda em 2013. Ele descrevia uma estrutura modular e aberta de racks para data centers com 21 polegadas de largura. Essa abordagem permitiu aumentar a efici\u00eancia do espa\u00e7o do rack para 87,5%. Em compara\u00e7\u00e3o, racks de 19 polegadas, que s\u00e3o o padr\u00e3o hoje, t\u00eam uma efici\u00eancia de apenas 73%.<br \/>\n<noindex><a rel=\"nofollow\" name=\"habracut\"><\/a><\/noindex><br \/>\nAl\u00e9m disso, os engenheiros mudaram a abordagem para a distribui\u00e7\u00e3o de energia. A principal inova\u00e7\u00e3o foi o barramento de 12 volts, ao qual o equipamento \u00e9 conectado. Isso eliminou a necessidade de instalar uma fonte de alimenta\u00e7\u00e3o pr\u00f3pria para cada servidor.<\/p>\n<p>Em 2015, foi lan\u00e7ada <noindex><a rel=\"nofollow\" href=\"https:\/\/www.opencompute.org\/documents\/facebook-open-rack-v2-specification-rev-12\">a segunda vers\u00e3o do padr\u00e3o<\/a><\/noindex>. Nela, os desenvolvedores <noindex><a rel=\"nofollow\" href=\"https:\/\/www.zdnet.com\/article\/google-facebook-pause-rivalries-heres-their-48v-power-saving-rack-spec-for-open-compute-project\/\">transitaram<\/a><\/noindex> para um modelo de 48 volts e reduziram o n\u00famero de transformadores, o que diminuiu o consumo de energia dos racks em 30%. Gra\u00e7as a essas caracter\u00edsticas, o padr\u00e3o ganhou ampla ado\u00e7\u00e3o na ind\u00fastria de TI. Os racks come\u00e7aram a ser amplamente <noindex><a rel=\"nofollow\" href=\"https:\/\/www.opencompute.org\/membership\/membership-organizational-directory\">utilizados<\/a><\/noindex> por grandes corpora\u00e7\u00f5es de TI, empresas de telecomunica\u00e7\u00f5es e bancos.<\/p>\n<p>Recentemente, os desenvolvedores apresentaram uma nova especifica\u00e7\u00e3o \u2014 Open Rack v3. Segundo os autores da iniciativa OCP, ela est\u00e1 sendo desenvolvida para data centers de alta carga que processam dados para sistemas de IA e ML. As solu\u00e7\u00f5es de hardware implementadas neles possuem alta densidade de dissipa\u00e7\u00e3o de pot\u00eancia. Para seu funcionamento eficaz, foi necess\u00e1ria uma nova estrutura de racks.<\/p>\n<h2>O que j\u00e1 se sabe sobre o Open Rack v3<\/h2>\n<p>\nOs desenvolvedores observam que o novo padr\u00e3o ser\u00e1 mais flex\u00edvel e vers\u00e1til do que o v2, al\u00e9m de incorporar o melhor das vers\u00f5es anteriores \u2014 efici\u00eancia energ\u00e9tica, modularidade e compacidade. Em particular, <noindex><a rel=\"nofollow\" href=\"http:\/\/files.opencompute.org\/oc\/public.php?service=files&amp;t=23cadcc803bba621c720b77c60e5b958\">revelado<\/a><\/noindex>, que continuar\u00e1 utilizando fontes de alimenta\u00e7\u00e3o de 48 volts.<\/p>\n<p>A estrutura dos novos racks deve melhorar a circula\u00e7\u00e3o de ar e a dissipa\u00e7\u00e3o de calor. Notavelmente, para resfriar o equipamento, ser\u00e3o utilizados sistemas de refrigera\u00e7\u00e3o a l\u00edquido. Os membros do OCP <noindex><a rel=\"nofollow\" href=\"https:\/\/www.opencompute.org\/wiki\/Rack_%26_Power\/Advanced_Cooling_Solutions\">j\u00e1 est\u00e3o trabalhando<\/a><\/noindex> em v\u00e1rias solu\u00e7\u00f5es nesta \u00e1rea. Em particular, est\u00e3o sendo desenvolvidos contornos de l\u00edquido de contato, trocadores de calor montados na parede traseira do rack e sistemas de imers\u00e3o.<\/p>\n<p>Al\u00e9m disso, apresentaremos alguns par\u00e2metros f\u00edsicos dos novos racks:<\/p>\n<p>Fator de forma, U<br \/>\n48 ou 42<\/p>\n<p>Largura do rack, mm<br \/>\n600<\/p>\n<p>Profundidade do rack, mm<br \/>\n1068<\/p>\n<p>Carga m\u00e1xima, kg<br \/>\n1600<\/p>\n<p>Faixa de temperatura de opera\u00e7\u00e3o, \u00b0C<br \/>\n10\u201360<\/p>\n<p>Umidade de opera\u00e7\u00e3o, %<br \/>\n85<\/p>\n<p>Tipo de resfriamento<br \/>\nRefrigerado a l\u00edquido<\/p>\n<p><\/p>\n<h2>Opini\u00f5es<\/h2>\n<p>\nOs desenvolvedores da especifica\u00e7\u00e3o <noindex><a rel=\"nofollow\" href=\"https:\/\/code.fb.com\/data-center-engineering\/open-rack\/\">afirmam<\/a><\/noindex>, que a longo prazo, o Open Rack v3 permitir\u00e1 reduzir o custo de sistemas de TI em data centers. Na Schneider Electric <noindex><a rel=\"nofollow\" href=\"https:\/\/www.apc.com\/salestools\/VAVR-A5AJW3\/VAVR-A5AJW3_R0_EN.pdf\">calculou-se<\/a><\/noindex>, que a segunda vers\u00e3o dos racks j\u00e1 permite uma redu\u00e7\u00e3o de 25% nos custos de manuten\u00e7\u00e3o de servidores, em compara\u00e7\u00e3o com as constru\u00e7\u00f5es tradicionais. H\u00e1 raz\u00f5es para acreditar que a nova especifica\u00e7\u00e3o melhorar\u00e1 esse indicador.<\/p>\n<p>Entre as desvantagens do padr\u00e3o, especialistas <noindex><a rel=\"nofollow\" href=\"https:\/\/www.networkworld.com\/article\/3266293\/what-is-the-open-compute-project.html\">destacam<\/a><\/noindex> destacam a complexidade de adapta\u00e7\u00e3o do equipamento e das salas de m\u00e1quinas \u00e0s suas exig\u00eancias. H\u00e1 a probabilidade de que o custo de reestrutura\u00e7\u00e3o dos servidores supere os potenciais benef\u00edcios de sua implementa\u00e7\u00e3o. Por essa raz\u00e3o, o Open Rack \u00e9 principalmente voltado para novos data centers.<\/p>\n<p><img decoding=\"async\" alt=\"Open Rack v3: o que esperar do novo padr\u00e3o de arquitetura de racks de servidor\" src=\"\/wp-content\/uploads\/2019\/03\/93725656b7e369c411d5bf3c8a3b5496.jpg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<i>\/ \u0444\u043e\u0442\u043e <noindex><a rel=\"nofollow\" href=\"https:\/\/www.flickr.com\/photos\/timdorr\/158333036\">Tim Dorr<\/a><\/noindex> <noindex><a rel=\"nofollow\" href=\"https:\/\/creativecommons.org\/licenses\/by-sa\/2.0\/\">CC BY-SA<\/a><\/noindex><\/i><\/p>\n<p>Outras desvantagens <noindex><a rel=\"nofollow\" href=\"https:\/\/www.racksolutions.com\/news\/data-center-optimization\/open-frame-rack-vs-enclosed-rack\/\">incluem<\/a><\/noindex> particularidades da constru\u00e7\u00e3o da solu\u00e7\u00e3o. A arquitetura dos racks abertos n\u00e3o prev\u00ea prote\u00e7\u00e3o contra poeira. Al\u00e9m disso, aumenta a probabilidade de danificar o equipamento ou cabos.<\/p>\n<h2>Projetos semelhantes<\/h2>\n<p>\nEm mar\u00e7o, outra especifica\u00e7\u00e3o para racks foi lan\u00e7ada \u2014 <noindex><a rel=\"nofollow\" href=\"http:\/\/files.opencompute.org\/oc\/public.php?service=files&amp;t=dc0d26d541c0e19aeb2f9a1cb7580dd0\">Open19 System Level<\/a><\/noindex> (para visualizar a especifica\u00e7\u00e3o, \u00e9 necess\u00e1rio baixar o arquivo PDF). O documento foi desenvolvido pela Open19 Foundation, onde desde 2017 <noindex><a rel=\"nofollow\" href=\"https:\/\/www.theregister.co.uk\/2017\/05\/24\/open19_foundation_launch\/\">tentam<\/a><\/noindex> padronizar abordagens para a cria\u00e7\u00e3o de data centers. Mais detalhes sobre essa organiza\u00e7\u00e3o foram apresentados em <noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/en\/company\/it-grad\/blog\/329392\/\">um de nossos posts<\/a><\/noindex>.<\/p>\n<p>O padr\u00e3o Open19 System Level descreve um fator de forma universal para racks e estabelece requisitos para a estrutura das redes e consumo de energia. A equipe da Open19 prop\u00f5e o uso de chamadas cestas de bloco (brick cages). Elas consistem em m\u00f3dulos com v\u00e1rios chassi, nos quais \u00e9 poss\u00edvel acomodar o hardware necess\u00e1rio \u2014 servidores ou sistemas de armazenamento \u2014 em combina\u00e7\u00f5es variadas. A constru\u00e7\u00e3o tamb\u00e9m inclui prateleiras de alimenta\u00e7\u00e3o, switches, comutadores de rede e um sistema de gerenciamento de cabos.<\/p>\n<p>Para refrigera\u00e7\u00e3o, utiliza-se um sistema de resfriamento a l\u00edquido por imers\u00e3o <noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/en\/company\/it-grad\/blog\/416333\/\">direto no chip, baseado em \u00e1gua seca. Os autores do conceito<\/a><\/noindex> , afirmam que a arquitetura Open19 aumenta a efici\u00eancia energ\u00e9tica geral do data center em 10%. <noindex><a rel=\"nofollow\" href=\"https:\/\/www.datacenterknowledge.com\/edge-computing\/data-center-world-why-open19-designs-matter-edge-computing\">observam<\/a><\/noindex>Especialistas da ind\u00fastria de TI acreditam que, no futuro, projetos como Open19 e Open Rack permitir\u00e3o construir data centers flex\u00edveis mais rapidamente para trabalhar com solu\u00e7\u00f5es de IoT, promovendo o desenvolvimento de tecnologias 5G e computa\u00e7\u00e3o em borda.<\/p>\n<p>Como gerenciar o hardware em um data center - duas novas tecnologias<\/p>\n<p>\nPostagens do nosso canal no Telegram:<\/p>\n<ul>\n<li><noindex><a rel=\"nofollow\" href=\"https:\/\/t.me\/iaasblog\/200\">Por que os discos r\u00edgidos est\u00e3o quebrando com menos frequ\u00eancia<\/a><\/noindex><\/li>\n<li><noindex><a rel=\"nofollow\" href=\"https:\/\/t.me\/iaasblog\/201\">para gerenciar o hardware em data centers.<\/a><\/noindex><\/li>\n<li><noindex><a rel=\"nofollow\" href=\"https:\/\/t.me\/iaasblog\/187\">A arquitetura de TI do futuro \u2014 quem e como se prepara para ela<\/a><\/noindex><\/li>\n<li><noindex><a rel=\"nofollow\" href=\"https:\/\/t.me\/iaasblog\/205\">Como hospedar 100% da infraestrutura em nuvem \u2014 estudo de caso de cliente corporativo da IT-GRAD<\/a><\/noindex><\/li>\n<li><noindex><a rel=\"nofollow\" href=\"https:\/\/t.me\/iaasblog\/204\">Por que as empresas usam m\u00e1quinas virtuais em vez de cont\u00eaineres<\/a><\/noindex><\/li>\n<li><noindex><a rel=\"nofollow\" href=\"https:\/\/t.me\/iaasblog\/203\">Por que n\u00e3o \u00e9 poss\u00edvel simplesmente implementar tecnologias 'verdes' em data centers<\/a><\/noindex><\/li>\n<li><noindex><a rel=\"nofollow\" href=\"https:\/\/t.me\/iaasblog\/202\">Quem apoia projetos em nuvem \u2014 contamos sobre quatro fundos de c\u00f3digo aberto<\/a><\/noindex><\/li>\n<\/ul>\n<p>Fonte: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/it-grad\/blog\/446118\/\">habr.com<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041e\u043d \u043d\u0430\u0439\u0434\u0435\u0442 \u043f\u0440\u0438\u043c\u0435\u043d\u0435\u043d\u0438\u0435 \u0432 \u0433\u0438\u043f\u0435\u0440\u043c\u0430\u0441\u0448\u0442\u0430\u0431\u0438\u0440\u0443\u0435\u043c\u044b\u0445 \u0426\u041e\u0414. \/ \u0444\u043e\u0442\u043e Not4rthur CC BY-SA \u0417\u0430\u0447\u0435\u043c \u043e\u0431\u043d\u043e\u0432\u0438\u043b\u0438 \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u044e \u0418\u043d\u0436\u0435\u043d\u0435\u0440\u044b \u0438\u0437 Open Compute Project (\u041e\u0421\u0420) \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u0438\u043b\u0438 \u043f\u0435\u0440\u0432\u0443\u044e \u0432\u0435\u0440\u0441\u0438\u044e \u0441\u0442\u0430\u043d\u0434\u0430\u0440\u0442\u0430 \u0435\u0449\u0435 \u0432 2013 \u0433\u043e\u0434\u0443. \u041e\u043d \u043e\u043f\u0438\u0441\u044b\u0432\u0430\u043b \u043c\u043e\u0434\u0443\u043b\u044c\u043d\u0443\u044e \u0438 \u043e\u0442\u043a\u0440\u044b\u0442\u0443\u044e \u043a\u043e\u043d\u0441\u0442\u0440\u0443\u043a\u0446\u0438\u044e \u0441\u0442\u043e\u0435\u043a \u0434\u043b\u044f \u0426\u041e\u0414 \u0448\u0438\u0440\u0438\u043d\u043e\u0439 \u0432 21 \u0434\u044e\u0439\u043c. \u0422\u0430\u043a\u043e\u0439 \u043f\u043e\u0434\u0445\u043e\u0434 \u043f\u043e\u0437\u0432\u043e\u043b\u0438\u043b \u0443\u0432\u0435\u043b\u0438\u0447\u0438\u0442\u044c \u043a\u043e\u044d\u0444\u0444\u0438\u0446\u0438\u0435\u043d\u0442 \u044d\u0444\u0444\u0435\u043a\u0442\u0438\u0432\u043d\u043e \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u043c\u043e\u0433\u043e \u043f\u0440\u043e\u0441\u0442\u0440\u0430\u043d\u0441\u0442\u0432\u0430 \u0441\u0442\u043e\u0439\u043a\u0438 \u0434\u043e 87,5%. \u0414\u043b\u044f \u0441\u0440\u0430\u0432\u043d\u0435\u043d\u0438\u044f, \u0443 [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":22632,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[688],"tags":[],"class_list":["post-30642","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-administrirovanie"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041e\u043d \u043d\u0430\u0439\u0434\u0435\u0442 \u043f\u0440\u0438\u043c\u0435\u043d\u0435\u043d\u0438\u0435 \u0432 \u0433\u0438\u043f\u0435\u0440\u043c\u0430\u0441\u0448\u0442\u0430\u0431\u0438\u0440\u0443\u0435\u043c\u044b\u0445 \u0426\u041e\u0414.\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" 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