{"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\/da\/blog\/administrirovanie\/open-rack-v3-chto-zhdat-ot-novogo-standarta-arhitektury-servernyh-stoek","title":{"rendered":"Open Rack v3: Hvad kan vi forvente af den nye standard for serverrack-arkitektur","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<h5>Det vil f\u00e5 anvendelse i hyperskala datacentre.<\/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: Hvad kan vi forvente af den nye standard for serverrack-arkitektur\" 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>Hvorfor blev specifikationen opdateret<\/h2>\n<p>\nIngeni\u00f8rer fra Open Compute Project (OCP) <noindex><a rel=\"nofollow\" href=\"https:\/\/www.opencompute.org\/news\/introducing-the-open-rack\">pr\u00e6senterede den f\u00f8rste version<\/a><\/noindex> af standarden i 2013. Den beskrev en modul\u00e6r og \u00e5ben konstruktion af stativer til datacentre med en bredde p\u00e5 21 tommer. Denne tilgang har gjort det muligt at \u00f8ge udnyttelsesgraden af rackpladsen til 87,5%. Til sammenligning er udnyttelsesgraden for de 19 tommer stativer, der i dag er standarden, kun 73%.<br \/>\n<noindex><a rel=\"nofollow\" name=\"habracut\"><\/a><\/noindex><br \/>\nDesuden \u00e6ndrede ingeni\u00f8rerne tilgangen til str\u00f8mfordeling. Den st\u00f8rste nyhed var en 12-volts bus, til hvilken udstyret tilsluttes. Dette eliminerede behovet for at installere en egen str\u00f8mforsyning til hver server.<\/p>\n<p>I 2015 blev der udgivet <noindex><a rel=\"nofollow\" href=\"https:\/\/www.opencompute.org\/documents\/facebook-open-rack-v2-specification-rev-12\">den anden version af standarden<\/a><\/noindex>. I den skiftede udviklerne <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\/\">til en 48-volts model og reducerede antallet af transformatorer, hvilket mindskede str\u00f8mforbruget for stativerne med 30%. P\u00e5 grund af disse funktioner har standarden f\u00e5et bred udbredelse i IT-industrien. Stativer begyndte at blive aktivt<\/a><\/noindex> bruges af store IT-virksomheder, telekommunikationsfirmaer og banker. <noindex><a rel=\"nofollow\" href=\"https:\/\/www.opencompute.org\/membership\/membership-organizational-directory\">bruges<\/a><\/noindex> For nylig pr\u00e6senterede udviklerne en ny specifikation \u2014 Open Rack v3. If\u00f8lge forfatterne af OCP-initiativet er den designet til h\u00f8jtydende datacentre, der h\u00e5ndterer data til AI- og ML-systemer. De hardwarel\u00f8sninger, der implementeres i dem, har en h\u00f8j densitet af afledt effekt. Til deres effektive drift var der brug for en ny konstruktion af stativer.<\/p>\n<p>Hvad der allerede vides om Open Rack v3<\/p>\n<h2>Udviklerne bem\u00e6rker, at den nye standard vil v\u00e6re mere fleksibel og alsidig end v2 og ogs\u00e5 vil tage det bedste fra de tidligere versioner \u2014 energieffektivitet, modul\u00e6r opbygning, kompakthed. Is\u00e6r<\/h2>\n<p>\ner det kendt <noindex><a rel=\"nofollow\" href=\"http:\/\/files.opencompute.org\/oc\/public.php?service=files&amp;t=23cadcc803bba621c720b77c60e5b958\">, at den fortsat vil bruge 48-volts str\u00f8mforsyninger.<\/a><\/noindex>Konstruktionen af de nye stativer skal forbedre luftcirkulationen og varmeafledningen. For at k\u00f8le udstyret vil der blive anvendt v\u00e6skek\u00f8lesystemer. Medlemmerne af OCP<\/p>\n<p>arbejder allerede <noindex><a rel=\"nofollow\" href=\"https:\/\/www.opencompute.org\/wiki\/Rack_%26_Power\/Advanced_Cooling_Solutions\">p\u00e5 flere l\u00f8sninger p\u00e5 dette omr\u00e5de. Is\u00e6r udvikles der kontaktv\u00e6skekonturer, varmevekslere, der monteres p\u00e5 bagv\u00e6ggen af stativet, og neds\u00e6nkede systemer.<\/a><\/noindex> Desuden vil vi give nogle fysiske parametre for de nye stativer:<\/p>\n<p>Formfaktor, U<\/p>\n<p>48 eller 42<br \/>\nBredde p\u00e5 stativ, mm<\/p>\n<p>Dybde p\u00e5 stativ, mm<br \/>\n600<\/p>\n<p>Maksimal belastning, kg<br \/>\n1068<\/p>\n<p>Maksimal belastning, kg<br \/>\n1600<\/p>\n<p>Driftomr\u00e5de for driftstemperaturer, \u00b0C<br \/>\n10\u201360<\/p>\n<p>Driftsfugtighed, %<br \/>\n85<\/p>\n<p>K\u00f8letype<br \/>\nV\u00e6ske<\/p>\n<p><\/p>\n<h2>Meninger<\/h2>\n<p>\nUdviklerne af specifikationen <noindex><a rel=\"nofollow\" href=\"https:\/\/code.fb.com\/data-center-engineering\/open-rack\/\">h\u00e6vder<\/a><\/noindex>, hvilket i fremtiden vil g\u00f8re det muligt for Open Rack v3 at reducere omkostningerne ved IT-systemer i datacentre. Hos Schneider Electric <noindex><a rel=\"nofollow\" href=\"https:\/\/www.apc.com\/salestools\/VAVR-A5AJW3\/VAVR-A5AJW3_R0_EN.pdf\">har de beregnet<\/a><\/noindex>, at den anden version af rackene allerede g\u00f8r det muligt at reducere omkostningerne til servervedligeholdelse med 25 % sammenlignet med traditionelle konstruktioner. Der er grund til at tro, at den nye specifikation vil forbedre dette tal.<\/p>\n<p>Blandt ulemperne ved standarden n\u00e6vner eksperter <noindex><a rel=\"nofollow\" href=\"https:\/\/www.networkworld.com\/article\/3266293\/what-is-the-open-compute-project.html\">en ret smal m\u00e5lgruppe. Der er stadig kun et lille antal virksomheder, der arbejder med h\u00f8jtydende systemer. Selvom Statista<\/a><\/noindex> sv\u00e6rhedsgraden af tilpasning af udstyr og maskinrum til dens krav. Der er en risiko for, at omkostningerne til ombygning af serverrum vil overstige de potentielle fordele ved implementeringen. Af denne grund er Open Rack for det meste rettet mod nye datacentre.<\/p>\n<p><img decoding=\"async\" alt=\"Open Rack v3: Hvad kan vi forvente af den nye standard for serverrack-arkitektur\" 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>Yderligere ulemper <noindex><a rel=\"nofollow\" href=\"https:\/\/www.racksolutions.com\/news\/data-center-optimization\/open-frame-rack-vs-enclosed-rack\/\">omfatter<\/a><\/noindex> konstruktionens s\u00e6rlige egenskaber. Arkitekturen af de \u00e5bne racks forudser ingen beskyttelse mod st\u00f8v. Desuden \u00f8ges risikoen for at beskadige udstyr eller kabler.<\/p>\n<h2>Lignende projekter<\/h2>\n<p>\nI marts blev endnu en specifikation for racks offentliggjort \u2014 <noindex><a rel=\"nofollow\" href=\"http:\/\/files.opencompute.org\/oc\/public.php?service=files&amp;t=dc0d26d541c0e19aeb2f9a1cb7580dd0\">Open19 System Level<\/a><\/noindex> (for at se specifikationen skal man downloade PDF-filen). Dokumentet blev udviklet af Open19 Foundation, som siden 2017 <noindex><a rel=\"nofollow\" href=\"https:\/\/www.theregister.co.uk\/2017\/05\/24\/open19_foundation_launch\/\">har fors\u00f8gt<\/a><\/noindex> at standardisere tilgange til oprettelse af datacentre. Mere om denne organisation har vi fortalt i <noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/en\/company\/it-grad\/blog\/329392\/\">et af vores indl\u00e6g<\/a><\/noindex>.<\/p>\n<p>Standard Open19 System Level beskriver en universel formfaktor for racks og fastl\u00e6gger krav til netv\u00e6rksstruktur og energiforbrug. Open19-teamet foresl\u00e5r at bruge s\u00e5kaldte blok-kurve (brick cages). De repr\u00e6senterer moduler med flere chassiser, hvor det n\u00f8dvendige udstyr \u2014 servere eller SAN \u2014 kan placeres i vilk\u00e5rlige kombinationer. Desuden indeholder konstruktionen str\u00f8mforsyningsrammer, switche, netv\u00e6rkskommutatorer og et kabelh\u00e5ndteringssystem.<\/p>\n<p>Til k\u00f8ling anvendes et system for neds\u00e6nket <noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/en\/company\/it-grad\/blog\/416333\/\">v\u00e6skeafk\u00f8ling<\/a><\/noindex> direct-to-chip baseret p\u00e5 destilleret vand. Forfatterne af konceptet <noindex><a rel=\"nofollow\" href=\"https:\/\/www.datacenterknowledge.com\/edge-computing\/data-center-world-why-open19-designs-matter-edge-computing\">prognoserne<\/a><\/noindex>, mener at arkitekturen Open19 \u00f8ger den samlede energieffektivitet af datacentre med 10 %.<\/p>\n<p>Eksperter i IT-branchen mener, at fremadskuende projekter som Open19 og Open Rack vil muligg\u00f8re hurtigere opbygning af fleksible datacentre til arbejde med IoT-l\u00f8sninger, fremme udviklingen af 5G-teknologier og edge computing.<\/p>\n<p>\nIndl\u00e6g fra vores Telegram-kanal:<\/p>\n<ul>\n<li><noindex><a rel=\"nofollow\" href=\"https:\/\/t.me\/iaasblog\/200\">Hvorfor harddiske er blevet mindre tilb\u00f8jelige til at g\u00e5 i stykker<\/a><\/noindex><\/li>\n<li><noindex><a rel=\"nofollow\" href=\"https:\/\/t.me\/iaasblog\/201\">Hvordan man styrer hardware i datacenteret \u2013 to nye teknologier<\/a><\/noindex><\/li>\n<li><noindex><a rel=\"nofollow\" href=\"https:\/\/t.me\/iaasblog\/187\">IT-arkitekturen i fremtiden \u2014 hvem og hvordan forbereder sig p\u00e5 den<\/a><\/noindex><\/li>\n<li><noindex><a rel=\"nofollow\" href=\"https:\/\/t.me\/iaasblog\/205\">Hvordan man placerer 100 % af infrastrukturen i skyen \u2014 sag fra en corporate kunde IT-GRAD<\/a><\/noindex><\/li>\n<li><noindex><a rel=\"nofollow\" href=\"https:\/\/t.me\/iaasblog\/204\">Hvorfor virksomheder bruger virtuelle maskiner frem for containere<\/a><\/noindex><\/li>\n<li><noindex><a rel=\"nofollow\" href=\"https:\/\/t.me\/iaasblog\/203\">Hvorfor man ikke bare kan implementere gr\u00f8nne teknologier i datacentre<\/a><\/noindex><\/li>\n<li><noindex><a rel=\"nofollow\" href=\"https:\/\/t.me\/iaasblog\/202\">Hvem st\u00f8tter cloud-projekter \u2014 vi fort\u00e6ller om fire open source-fonde<\/a><\/noindex><\/li>\n<\/ul>\n<p>Kilde: <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\" content=\"Yuri Gagarin\"\/>\n\t<link rel=\"canonical\" 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