{"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\/fr\/blog\/administrirovanie\/open-rack-v3-chto-zhdat-ot-novogo-standarta-arhitektury-servernyh-stoek","title":{"rendered":"Open Rack v3 : que faut-il attendre du nouveau standard d'architecture des racks de serveur","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<h5>Il sera utilis\u00e9 dans des centres de donn\u00e9es hyperscalables.<\/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 : que faut-il attendre du nouveau standard d&#039;architecture des racks de serveur\" 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>Pourquoi la sp\u00e9cification a-t-elle \u00e9t\u00e9 mise \u00e0 jour<\/h2>\n<p>\nDes ing\u00e9nieurs du Open Compute Project (OCP) <noindex><a rel=\"nofollow\" href=\"https:\/\/www.opencompute.org\/news\/introducing-the-open-rack\">ont pr\u00e9sent\u00e9 la premi\u00e8re version<\/a><\/noindex> de la norme en 2013. Elle d\u00e9crivait une structure modulaire et ouverte pour des racks de centre de donn\u00e9es de 21 pouces de large. Cette approche a permis d'augmenter le coefficient d'utilisation efficace de l'espace du rack \u00e0 87,5 %. En comparaison, les racks de 19 pouces, qui sont la norme aujourd'hui, n'atteignent que 73 %.<br \/>\n<noindex><a rel=\"nofollow\" name=\"habracut\"><\/a><\/noindex><br \/>\nDe plus, les ing\u00e9nieurs ont modifi\u00e9 l'approche de distribution de l'alimentation. La principale innovation a \u00e9t\u00e9 une barre de 12 volts \u00e0 laquelle se connecte l'\u00e9quipement. Cela a \u00e9limin\u00e9 la n\u00e9cessit\u00e9 d'installer une alimentation distincte pour chaque serveur.<\/p>\n<p>En 2015, la <noindex><a rel=\"nofollow\" href=\"https:\/\/www.opencompute.org\/documents\/facebook-open-rack-v2-specification-rev-12\">deuxi\u00e8me version de la norme<\/a><\/noindex>est sortie. Dans celle-ci, les d\u00e9veloppeurs <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\/\">sont pass\u00e9s<\/a><\/noindex> \u00e0 un mod\u00e8le de 48 volts et ont r\u00e9duit le nombre de transformateurs, ce qui a permis de r\u00e9duire la consommation \u00e9nerg\u00e9tique des racks de 30 %. Gr\u00e2ce \u00e0 ces caract\u00e9ristiques, la norme a connu une large adoption dans l'industrie informatique. Les racks ont commenc\u00e9 \u00e0 \u00eatre largement utilis\u00e9s par <noindex><a rel=\"nofollow\" href=\"https:\/\/www.opencompute.org\/membership\/membership-organizational-directory\">d'utiliser<\/a><\/noindex> de grandes entreprises informatiques, des entreprises de t\u00e9l\u00e9communications et des banques.<\/p>\n<p>R\u00e9cemment, les d\u00e9veloppeurs ont pr\u00e9sent\u00e9 une nouvelle sp\u00e9cification \u2014 Open Rack v3. Selon les auteurs de l'initiative OCP, elle est con\u00e7ue pour des centres de donn\u00e9es tr\u00e8s charg\u00e9s, traitant des donn\u00e9es pour des syst\u00e8mes d'IA et de ML. Les solutions mat\u00e9rielles mises en \u0153uvre n\u00e9cessitent une haute densit\u00e9 de puissance dissip\u00e9e. Pour leur fonctionnement efficace, une nouvelle conception de racks est n\u00e9cessaire.<\/p>\n<h2>Ce que l'on sait d\u00e9j\u00e0 sur Open Rack v3<\/h2>\n<p>\nLes d\u00e9veloppeurs soulignent que la nouvelle norme sera plus flexible et universelle que la v2, tout en int\u00e9grant les meilleurs \u00e9l\u00e9ments des versions pr\u00e9c\u00e9dentes \u2014 efficacit\u00e9 \u00e9nerg\u00e9tique, modularit\u00e9, compacit\u00e9. En particulier, <noindex><a rel=\"nofollow\" href=\"http:\/\/files.opencompute.org\/oc\/public.php?service=files&amp;t=23cadcc803bba621c720b77c60e5b958\">r\u00e9v\u00e9l\u00e9<\/a><\/noindex>, elle continuera d'utiliser des alimentations de 48 volts.<\/p>\n<p>La conception des nouveaux racks devra am\u00e9liorer la circulation de l'air et la dissipation de la chaleur. \u00c0 cet \u00e9gard, des syst\u00e8mes de refroidissement liquide seront utilis\u00e9s. Les membres de l'OCP <noindex><a rel=\"nofollow\" href=\"https:\/\/www.opencompute.org\/wiki\/Rack_%26_Power\/Advanced_Cooling_Solutions\">travaillent d\u00e9j\u00e0<\/a><\/noindex> sur plusieurs solutions dans ce domaine. En particulier, des circuits liquides de contact, des \u00e9changeurs de chaleur mont\u00e9s \u00e0 l'arri\u00e8re du rack, et des syst\u00e8mes d'immersion sont en cours de d\u00e9veloppement.<\/p>\n<p>Ensuite, voici quelques param\u00e8tres physiques des nouveaux racks:<\/p>\n<p>Facteur de forme, U<br \/>\n48 ou 42<\/p>\n<p>Largeur du rack, mm<br \/>\n600<\/p>\n<p>Profondeur du rack, mm<br \/>\n1068<\/p>\n<p>Charge maximale, kg<br \/>\n1600<\/p>\n<p>Plage de temp\u00e9ratures de fonctionnement, \u00b0C<br \/>\n10\u201360<\/p>\n<p>Humidit\u00e9 de fonctionnement, %<br \/>\n85<\/p>\n<p>Type de refroidissement<br \/>\nLiquide<\/p>\n<p><\/p>\n<h2>Avis<\/h2>\n<p>\nLes d\u00e9veloppeurs de la sp\u00e9cification <noindex><a rel=\"nofollow\" href=\"https:\/\/code.fb.com\/data-center-engineering\/open-rack\/\">affirment<\/a><\/noindex>, ce qui, \u00e0 terme, permettra \u00e0 Open Rack v3 de r\u00e9duire le co\u00fbt des syst\u00e8mes informatiques dans les centres de donn\u00e9es. Dans Schneider Electric <noindex><a rel=\"nofollow\" href=\"https:\/\/www.apc.com\/salestools\/VAVR-A5AJW3\/VAVR-A5AJW3_R0_EN.pdf\">ont calcul\u00e9<\/a><\/noindex>, que la deuxi\u00e8me version des racks permet d\u00e9j\u00e0 de r\u00e9duire les co\u00fbts de maintenance des serveurs de 25 %, par rapport aux constructions traditionnelles. On peut supposer que la nouvelle sp\u00e9cification am\u00e9liorera ce chiffre.<\/p>\n<p>Parmi les inconv\u00e9nients de la norme, les experts <noindex><a rel=\"nofollow\" href=\"https:\/\/www.networkworld.com\/article\/3266293\/what-is-the-open-compute-project.html\">soulignent<\/a><\/noindex> soulignent la complexit\u00e9 de l'adaptation de l'\u00e9quipement et des salles machines \u00e0 ses exigences. Il y a un risque que le co\u00fbt de la restructuration des serveurs d\u00e9passe les b\u00e9n\u00e9fices potentiels de leur mise en \u0153uvre. C'est pourquoi Open Rack est principalement ax\u00e9 sur les nouveaux centres de donn\u00e9es.<\/p>\n<p><img decoding=\"async\" alt=\"Open Rack v3 : que faut-il attendre du nouveau standard d&#039;architecture des racks de serveur\" 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>D'autres inconv\u00e9nients <noindex><a rel=\"nofollow\" href=\"https:\/\/www.racksolutions.com\/news\/data-center-optimization\/open-frame-rack-vs-enclosed-rack\/\">incluent<\/a><\/noindex> les caract\u00e9ristiques de conception de la solution. L'architecture des racks ouverts ne pr\u00e9voit pas de protection contre la poussi\u00e8re. De plus, le risque d'endommager l'\u00e9quipement ou les c\u00e2bles augmente.<\/p>\n<h2>Projets similaires<\/h2>\n<p>\nEn mars, une autre sp\u00e9cification pour les racks a \u00e9t\u00e9 publi\u00e9e - <noindex><a rel=\"nofollow\" href=\"http:\/\/files.opencompute.org\/oc\/public.php?service=files&amp;t=dc0d26d541c0e19aeb2f9a1cb7580dd0\">Open19 System Level<\/a><\/noindex> (pour consulter la sp\u00e9cification, vous devez t\u00e9l\u00e9charger le fichier PDF). Le document a \u00e9t\u00e9 \u00e9labor\u00e9 par la Open19 Foundation, qui a standardis\u00e9 <noindex><a rel=\"nofollow\" href=\"https:\/\/www.theregister.co.uk\/2017\/05\/24\/open19_foundation_launch\/\">essayer<\/a><\/noindex> les approches de cr\u00e9ation de centres de donn\u00e9es depuis 2017. Nous avons parl\u00e9 de cette organisation dans <noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/en\/company\/it-grad\/blog\/329392\/\">un de nos articles<\/a><\/noindex>.<\/p>\n<p>La norme Open19 System Level d\u00e9crit un format universel pour les racks et \u00e9tablit des exigences pour la structure des r\u00e9seaux et la consommation \u00e9nerg\u00e9tique. L'\u00e9quipe d'Open19 propose d'utiliser ce qu'on appelle des blocs-cages (brick cages). Ce sont des modules avec plusieurs ch\u00e2ssis, dans lesquels on peut placer le mat\u00e9riel n\u00e9cessaire - serveurs ou stockage - dans des combinaisons arbitraires. La construction comprend \u00e9galement des \u00e9tag\u00e8res d'alimentation, des commutateurs, des switchs r\u00e9seau et un syst\u00e8me de gestion des c\u00e2bles.<\/p>\n<p>Pour le refroidissement, un syst\u00e8me de <noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/en\/company\/it-grad\/blog\/416333\/\">refroidissement liquide<\/a><\/noindex> direct-to-chip bas\u00e9 sur l'eau s\u00e8che. Les auteurs du concept <noindex><a rel=\"nofollow\" href=\"https:\/\/www.datacenterknowledge.com\/edge-computing\/data-center-world-why-open19-designs-matter-edge-computing\">note<\/a><\/noindex>, estiment que l'architecture d'Open19 augmente l'efficacit\u00e9 \u00e9nerg\u00e9tique globale des centres de donn\u00e9es de 10 %.<\/p>\n<p>Les experts de l'industrie informatique estiment qu'\u00e0 l'avenir, des projets comme Open19 et Open Rack permettront de construire plus rapidement des centres de donn\u00e9es flexibles pour travailler avec des solutions IoT, favorisant le d\u00e9veloppement des technologies 5G et de l'informatique en p\u00e9riph\u00e9rie.<\/p>\n<p>\nPublications de notre cha\u00eene Telegram :<\/p>\n<ul>\n<li><noindex><a rel=\"nofollow\" href=\"https:\/\/t.me\/iaasblog\/200\">Pourquoi les disques durs tombent moins souvent en panne<\/a><\/noindex><\/li>\n<li><noindex><a rel=\"nofollow\" href=\"https:\/\/t.me\/iaasblog\/201\">Comment g\u00e9rer le mat\u00e9riel dans un data center - deux nouvelles technologies<\/a><\/noindex><\/li>\n<li><noindex><a rel=\"nofollow\" href=\"https:\/\/t.me\/iaasblog\/187\">L'architecture IT de demain - qui s'y pr\u00e9pare et comment<\/a><\/noindex><\/li>\n<li><noindex><a rel=\"nofollow\" href=\"https:\/\/t.me\/iaasblog\/205\">Comment h\u00e9berger 100% de l'infrastructure dans le cloud - cas d'un client d'entreprise IT-GRAD<\/a><\/noindex><\/li>\n<li><noindex><a rel=\"nofollow\" href=\"https:\/\/t.me\/iaasblog\/204\">Pourquoi les entreprises utilisent des machines virtuelles plut\u00f4t que des conteneurs<\/a><\/noindex><\/li>\n<li><noindex><a rel=\"nofollow\" href=\"https:\/\/t.me\/iaasblog\/203\">Pourquoi il n'est pas possible d'impl\u00e9menter simplement des technologies \u00ab vertes \u00bb dans les data centers<\/a><\/noindex><\/li>\n<li><noindex><a rel=\"nofollow\" href=\"https:\/\/t.me\/iaasblog\/202\">Qui soutient les projets cloud - nous parlons de quatre fonds open source<\/a><\/noindex><\/li>\n<\/ul>\n<p>Source : <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 5.0.2 - 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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