{"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\/sl\/blog\/administrirovanie\/open-rack-v3-chto-zhdat-ot-novogo-standarta-arhitektury-servernyh-stoek","title":{"rendered":"Open Rack v3: kaj pri\u010dakovati od novega standarda arhitekture stre\u017enikov","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<h5>Bo se bo shodil na hiperskalirane podatkovne centre.<\/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: kaj pri\u010dakovati od novega standarda arhitekture stre\u017enikov\" 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>Zakaj so posodobili specifikacijo<\/h2>\n<p>\nIn\u017eenirji iz Open Compute Project (OCP) <noindex><a rel=\"nofollow\" href=\"https:\/\/www.opencompute.org\/news\/introducing-the-open-rack\">so predstavili prvo razli\u010dico<\/a><\/noindex> standard \u0161e leta 2013. Opisoval je modularno in odprto konstrukcijo stojal za podatkovne centre \u0161irine 21 palec. Tak\u0161en pristop je omogo\u010dil pove\u010danje koeficienta u\u010dinkovito uporabljenega prostora stojala na 87,5 %. Za primerjavo, pri 19-pal\u010dnih stojalih, ki so danes standard, zna\u0161a le 73%.<br \/>\n<noindex><a rel=\"nofollow\" name=\"habracut\"><\/a><\/noindex><br \/>\nPoleg tega so in\u017eenirji spremenili pristop k razdelitvi napajanja. Glavna novost je bila 12-voltna vodila, na katerega se priklju\u010duje oprema. To je odpravilo potrebo po name\u0161\u010danju lastnega napajanja za vsak stre\u017enik.<\/p>\n<p>Leta 2015 je iz\u0161la <noindex><a rel=\"nofollow\" href=\"https:\/\/www.opencompute.org\/documents\/facebook-open-rack-v2-specification-rev-12\">druga razli\u010dica standarda<\/a><\/noindex>. V njej so razvijalci <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\/\">pre\u0161li<\/a><\/noindex> na 48-voltno razli\u010dico in zmanj\u0161ali \u0161tevilo transformatorjev, kar je zmanj\u0161alo porabo energije stojal za 30 %. Zaradi teh zna\u010dilnosti je standard dobil \u0161iroko uporabo v IT-industriji. Stojala so za\u010dela aktivno <noindex><a rel=\"nofollow\" href=\"https:\/\/www.opencompute.org\/membership\/membership-organizational-directory\">uporabo<\/a><\/noindex> velike IT-korporacije, telekomunikacijska podjetja in banke.<\/p>\n<p>Nedavno so razvijalci predstavili novo specifikacijo \u2014 Open Rack v3. Po besedah avtorjev pobude OCP se ta razvija za visokoobremenjena podatkovna sredi\u0161\u010da, ki obdelujejo podatke za sisteme AI in ML. Vgrajene strojne re\u0161itve imajo visoko gostoto odvajanja mo\u010di. Za njihovo u\u010dinkovito delovanje je potrebna nova konstrukcija stojal.<\/p>\n<h2>Kaj je \u017ee znanega o Open Rack v3<\/h2>\n<p>\nRazvijalci opozarjajo, da bo nov standard bolj prilagodljiv in univerzalen kot v2, ter da bo vzel vse najbolj\u0161e iz prej\u0161njih razli\u010dic \u2014 energetsko u\u010dinkovitost, modularnost, kompaktnost. Zlasti <noindex><a rel=\"nofollow\" href=\"http:\/\/files.opencompute.org\/oc\/public.php?service=files&amp;t=23cadcc803bba621c720b77c60e5b958\">znano<\/a><\/noindex>, da bo \u0161e naprej uporabljal 48-voltne napajalnike.<\/p>\n<p>Konstrukcija novih stojal bi morala izbolj\u0161ati obhod zraka in odvajanje toplote. Mimogrede, za hlajenje opreme bodo uporabljali teko\u010de sisteme. \u010clani OCP <noindex><a rel=\"nofollow\" href=\"https:\/\/www.opencompute.org\/wiki\/Rack_%26_Power\/Advanced_Cooling_Solutions\">\u017ee delajo<\/a><\/noindex> na ve\u010d re\u0161itvah na tem podro\u010dju. Zlasti se razvijajo kontaktni teko\u010di krogi, toplotni izmenjevalniki, name\u0161\u010deni na zadnji strani stojala, in imerzijski sistemi.<\/p>\n<p>Nato bomo predstavili nekatere fizi\u010dne parametre novih stojal:<\/p>\n<p>Format, U<br \/>\n48 ali 42<\/p>\n<p>\u0160irina stojala, mm<br \/>\n600<\/p>\n<p>Globina stojala, mm<br \/>\n1068<\/p>\n<p>Maksimalna obremenitev, kg<br \/>\n1600<\/p>\n<p>Obmo\u010dje delovnih temperaturo, \u00b0C<br \/>\n10\u201360<\/p>\n<p>Delovna vla\u017enost, %<br \/>\n85<\/p>\n<p>Tip hlajenja<br \/>\nTeku\u010de<\/p>\n<p><\/p>\n<h2>Mnenja<\/h2>\n<p>\nRazvijalci specifikacije <noindex><a rel=\"nofollow\" href=\"https:\/\/code.fb.com\/data-center-engineering\/open-rack\/\">trdijo<\/a><\/noindex>, kar v prihodnosti omogo\u010da Open Rack v3 zni\u017eanje stro\u0161kov IT-sistemov v podatkovnih centrih. V Schneider Electric <noindex><a rel=\"nofollow\" href=\"https:\/\/www.apc.com\/salestools\/VAVR-A5AJW3\/VAVR-A5AJW3_R0_EN.pdf\">so izra\u010dunali<\/a><\/noindex>, da druga razli\u010dica omar \u017ee omogo\u010da zmanj\u0161anje stro\u0161kov vzdr\u017eevanja stre\u017enikov za 25%, v primerjavi s tradicionalnimi konstrukcijami. Obstajajo razlogi za prepri\u010danje, da bo nova specifikacija izbolj\u0161ala ta pokazatelj.<\/p>\n<p>Med pomanjkljivostmi standarda strokovnjaki <noindex><a rel=\"nofollow\" href=\"https:\/\/www.networkworld.com\/article\/3266293\/what-is-the-open-compute-project.html\">izpostavljajo<\/a><\/noindex> kompleksnost prilagajanja opreme in strojni\u0161kih dvoran njegovim zahtevam. Obstaja verjetnost, da bodo stro\u0161ki preoblikovanja stre\u017eni\u0161kih prostorov presegli morebitne koristi od njihove uvedbe. Iz tega razloga je Open Rack ve\u010dinoma usmerjen na nove podatkovne centre.<\/p>\n<p><img decoding=\"async\" alt=\"Open Rack v3: kaj pri\u010dakovati od novega standarda arhitekture stre\u017enikov\" 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>\u0160e k minusi <noindex><a rel=\"nofollow\" href=\"https:\/\/www.racksolutions.com\/news\/data-center-optimization\/open-frame-rack-vs-enclosed-rack\/\">pripisujejo<\/a><\/noindex> zna\u010dilnosti konstrukcije re\u0161itve. Arhitektura odprtih omar ne predvideva za\u0161\u010dite pred prahom. Poleg tega se pove\u010duje verjetnost po\u0161kodb opreme ali kablov.<\/p>\n<h2>Podobni projekti<\/h2>\n<p>\nMarca je iz\u0161la \u0161e ena specifikacija za omare \u2014 <noindex><a rel=\"nofollow\" href=\"http:\/\/files.opencompute.org\/oc\/public.php?service=files&amp;t=dc0d26d541c0e19aeb2f9a1cb7580dd0\">Open19 System Level<\/a><\/noindex> (za ogled specifikacije je potrebno prenesti PDF-dokument). Dokument so razvili v Open19 Foundation, kjer od leta 2017 <noindex><a rel=\"nofollow\" href=\"https:\/\/www.theregister.co.uk\/2017\/05\/24\/open19_foundation_launch\/\">posku\u0161ajo<\/a><\/noindex> standardizirati pristope k ustvarjanju podatkovnih centrov. Ve\u010d o tej organizaciji smo pisali v <noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/en\/company\/it-grad\/blog\/329392\/\">eni od na\u0161ih objav<\/a><\/noindex>.<\/p>\n<p>Standard Open19 System Level opisuje univerzalno obliko za omare in dolo\u010da zahteve za strukturo omre\u017eij in porabo energije. Ekipa Open19 predlaga uporabo tako imenovanih blok-kletk (brick cages). Te predstavljajo module z ve\u010d \u0161asijami, v katerih je mogo\u010de namestiti potrebno opremo \u2014 stre\u017enike ali SAN \u2014 v poljubnih kombinacijah. V konstrukciji so tudi napajalne police, stikala, omre\u017eni usmerjevalniki in sistem za upravljanje s kabli.<\/p>\n<p>Za hlajenje uporabljajo sistem imersijskega <noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/en\/company\/it-grad\/blog\/416333\/\">teko\u010dinskega hlajenja<\/a><\/noindex> direct-to-chip na osnovi suhe vode. Avtorji koncepta <noindex><a rel=\"nofollow\" href=\"https:\/\/www.datacenterknowledge.com\/edge-computing\/data-center-world-why-open19-designs-matter-edge-computing\">opazujejo<\/a><\/noindex>, da arhitektura Open19 pove\u010duje skupno energetsko u\u010dinkovitost podatkovnih centrov za 10%.<\/p>\n<p>Strokovnjaki IT-industrije menijo, da bodo v prihodnosti projekti, kot sta Open19 in Open Rack, omogo\u010dili hitrej\u0161o gradnjo prilagodljivih podatkovnih centrov za delo z IoT-re\u0161itvami ter podprli razvoj tehnologij 5G in obrobnega ra\u010dunalni\u0161tva.<\/p>\n<p>\nObjave iz na\u0161ega Telegram-kanala:<\/p>\n<ul>\n<li><noindex><a rel=\"nofollow\" href=\"https:\/\/t.me\/iaasblog\/200\">Zakaj se trdi diski vse manj pokvarijo<\/a><\/noindex><\/li>\n<li><noindex><a rel=\"nofollow\" href=\"https:\/\/t.me\/iaasblog\/201\">Kako upravljati z opremo v podatkovnem centru \u2014 dve novi tehnologiji<\/a><\/noindex><\/li>\n<li><noindex><a rel=\"nofollow\" href=\"https:\/\/t.me\/iaasblog\/187\">IT-arhitektura prihodnosti \u2014 kdo in kako se nanjo pripravlja<\/a><\/noindex><\/li>\n<li><noindex><a rel=\"nofollow\" href=\"https:\/\/t.me\/iaasblog\/205\">Kako v oblaku namestiti 100% infrastrukture \u2014 \u0161tudija primera korporativnega naro\u010dnika IT-GRAD<\/a><\/noindex><\/li>\n<li><noindex><a rel=\"nofollow\" href=\"https:\/\/t.me\/iaasblog\/204\">Zakaj podjetja uporabljajo virtualne stroje in ne kontejnerjev<\/a><\/noindex><\/li>\n<li><noindex><a rel=\"nofollow\" href=\"https:\/\/t.me\/iaasblog\/203\">Zakaj ni mo\u017eno preprosto uvesti 'zelene' tehnologije v podatkovnih centrih<\/a><\/noindex><\/li>\n<li><noindex><a rel=\"nofollow\" href=\"https:\/\/t.me\/iaasblog\/202\">Kdo spodbuja obla\u010dne projekte \u2014 predstavljamo \u0161tiri open source sklade<\/a><\/noindex><\/li>\n<\/ul>\n<p>Izvor: <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 5.0.4 - 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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