{"id":32381,"date":"2019-10-31T21:46:44","date_gmt":"2019-10-31T18:46:44","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novyj-tip-ssd-hranilishh-sokratit-energopotreblenie-v-tsod-kak-eto-rabotaet\/"},"modified":"2019-10-31T21:46:44","modified_gmt":"2019-10-31T18:46:44","slug":"novyj-tip-ssd-hranilishh-sokratit-energopotreblenie-v-tsod-kak-eto-rabotaet","status":"publish","type":"post","link":"https:\/\/prohoster.info\/et\/blog\/administrirovanie\/novyj-tip-ssd-hranilishh-sokratit-energopotreblenie-v-tsod-kak-eto-rabotaet","title":{"rendered":"Uus type SSD-salvestust v\u00e4hendab energiat, kuidas see t\u00f6\u00f6tab","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<h5>S\u00fcsteem v\u00e4hendab energiakulusid kahe korra.<\/h5>\n<p>\n<noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/it-grad\/blog\/449476\/\"><img decoding=\"async\" alt=\"Uus type SSD-salvestust v\u00e4hendab energiat, kuidas see t\u00f6\u00f6tab\" src=\"\/wp-content\/uploads\/2019\/04\/c0e6d8bce0dfe2c6d5940f9fcecc98d2.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\/trekkyandy\/32411334526\/\">Andy Melton<\/a><\/noindex> CC BY-SA<\/i><\/p>\n<h2>Miks on vaja uut arhitektuuri<\/h2>\n<p>\n<noindex><a rel=\"nofollow\" href=\"https:\/\/www.datacenterdynamics.com\/opinions\/power-consumption-data-centers-global-problem\/\">Data Centre Dynamics'i hinnangute kohaselt<\/a><\/noindex>, aastaks 2030 tarbivad elektroonilised seadmed 40% kogu planeedil toodatavast energiast. Umbes 20% sellest mahust l\u00e4heb IT-sektorile ja andmekeskustele. Vastavalt <noindex>andmete<\/noindex> Euroopa anal\u00fc\u00fctikutele tarbivad andmekeskused juba 1,4% kogu elektrist. Oodatav kasvu <noindex><a rel=\"nofollow\" href=\"https:\/\/www.datacenterknowledge.com\/industry-perspectives\/achieving-data-center-energy-efficiency\">protsent t\u00f5useb 5% -ni aastaks 2020.<\/a><\/noindex>.<br \/>\n<noindex><a rel=\"nofollow\" name=\"habracut\"><\/a><\/noindex><br \/>\nSignifitseeriv osa energiast tarbivad SSD-salvestid. Ajavahemikul 2012\u20132017 kasvas tahkis-kettaste osakaal andmekeskustes <noindex><a rel=\"nofollow\" href=\"http:\/\/large.stanford.edu\/courses\/2017\/ph240\/yu2\/\">8%-lt 22%-le.<\/a><\/noindex>. Kuigi SSD-de energiatarve on kolmandiku v\u00f5rra madalam (<noindex><a rel=\"nofollow\" href=\"https:\/\/www.fujifilmusa.com\/products\/tape_data_storage\/case_studies\/pdf\/Hyperscale_Heat_Wave.pdf\">PDF, lk. 13<\/a><\/noindex>), j\u00e4\u00e4vad andmekeskuste elektriarved siiski k\u00f5rgeks.<\/p>\n<p>SSD-de energiatarbimise v\u00e4hendamiseks andmekeskustes on MITi insenerid t\u00f6\u00f6tanud v\u00e4lja uue SSD-salvestite arhitektuuri. See nimega LightStore v\u00f5imaldab salvestite otse \u00fchendamist andmekeskuse v\u00f5rku, m\u00f6\u00f6da minnes salvestuss\u00fcsteemidest. Vastavalt <noindex><a rel=\"nofollow\" href=\"http:\/\/news.mit.edu\/2019\/solid-state-drives-flash-storage-data-center-efficiency-0403\">s\u00f5nadele<\/a><\/noindex> autoritele v\u00e4hendab s\u00fcsteem energiakulusid kahe korra.<\/p>\n<h2>Kuidas see t\u00f6\u00f6tab<\/h2>\n<p>\nLightStore on v\u00f5tme-v\u00e4\u00e4rtuse t\u00fc\u00fcpi m\u00e4luseade, kus kasutaja p\u00e4ringud salvestite osas kuvatakse v\u00f5tmetena. Need saadetakse seej\u00e4rel serverisse, mis vabastab sellega seotud andmed.<\/p>\n<p>S\u00fcsteem <noindex>sisaldab<\/noindex> sisemine energiat\u00f5hus protsessor, DRAM ja NAND-m\u00e4lu. Seda juhib kontroller ja spetsiaalne tarkvara. Kontroller vastutab NAND-massiividega t\u00f6\u00f6tamise eest, samas kui tarkvara tegeleb KV-p\u00e4ringute t\u00f6\u00f6tlemise ja v\u00f5tmete paaride salvestamisega. Tarkvara arhitektuur on \u00fcles ehitatud <noindex><a rel=\"nofollow\" href=\"https:\/\/ru.wikipedia.org\/wiki\/LSM-%D0%B4%D0%B5%D1%80%D0%B5%D0%B2%D0%BE\">LSM-puu<\/a><\/noindex>, mida kasutatakse paljudes kaasaegsetes andmebaasis\u00fcsteemides.<\/p>\n<p>Arhitektuuri skeemi saab esitada j\u00e4rgmiselt:<\/p>\n<p><img decoding=\"async\" alt=\"Uus type SSD-salvestust v\u00e4hendab energiat, kuidas see t\u00f6\u00f6tab\" src=\"\/wp-content\/uploads\/2019\/04\/17158b9e9f6a32d6e7e325cabf598909.jpg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\nDiagrammil on kujutatud LightStore'i p\u00f5hikomponente. Node'ide klaster t\u00f6\u00f6tab v\u00f5tme-v\u00e4\u00e4rtuse paaridega. Rakenduste serverid \u00fchendavad s\u00fcsteemiga adapterite kaudu. Need muudavad kliendi p\u00e4ringud (n\u00e4iteks fread() API POSIXist) KV-p\u00e4ringuteks. Samuti on arhitektuuril eraldi adapterid <noindex><a rel=\"nofollow\" href=\"https:\/\/en.wikipedia.org\/wiki\/YCSB\">YCSB<\/a><\/noindex>, plokkide (BUSE mooduli baasil) ja failisalvestite jaoks.<\/p>\n<p>P\u00e4ringute jaotamisel kasutab adapter <noindex><a rel=\"nofollow\" href=\"https:\/\/ru.wikipedia.org\/wiki\/%D0%A1%D0%BE%D0%B3%D0%BB%D0%B0%D1%81%D0%BE%D0%B2%D0%B0%D0%BD%D0%BD%D0%BE%D0%B5_%D1%85%D0%B5%D1%88%D0%B8%D1%80%D0%BE%D0%B2%D0%B0%D0%BD%D0%B8%D0%B5\">\u00fchtset hajutamist.<\/a><\/noindex>Seda rakendatakse sellistes s\u00fcsteemides nagu Redis v\u00f5i Swift. KV-p\u00e4ringu v\u00f5tmega genereerib adapter hajutusv\u00f5tme, mille v\u00e4\u00e4rtus m\u00e4\u00e4rab sihtnode.<\/p>\n<p>LightStore'i klastrite maht skaleerub lineaarsete \u00fchenduste abil \u2013 piisab, kui lisada v\u00f5rgule uusi s\u00f5lmi. M\u00f5nel juhul v\u00f5ib olla vajalik osta uusi l\u00fcliteid. Kuid arendajad on varustanud iga s\u00f5lme t\u00e4iendavate slotidega NAND-m\u00e4lude \u00fchendamiseks.<\/p>\n<h2>Arhitektuuri potentsiaal<\/h2>\n<p>\nMIT-i insenerid \u00fctlevad, et LightStore'i lahenduse l\u00e4bilaskev\u00f5ime on 620 Mbit\/s k\u00fcmne gigabitise Etherneti jaoks. \u00dcks s\u00f5lm tarbib 10 W, v\u00f5rreldes tavap\u00e4raste 20 W-ga (praegustes andakeskustes kasutatavates SSD-s\u00fcsteemides). Lisaks v\u00f5tab varustus kaks korda v\u00e4hem ruumi.<\/p>\n<p>Praegu t\u00f6\u00f6tavad arendajad teatud punktide kallal. N\u00e4iteks ei oska LightStore t\u00f6\u00f6tada vahemiku- ja v\u00e4ikeste p\u00e4ringute puhul. Need funktsioonid lisatakse tulevikus, kuna LightStore kasutab LSM-puude struktuuri. Samuti on s\u00fcsteemil praegu piiratud adapterite komplekt \u2014 toetatakse YCSB ja plokkadaptereid. Tulevikus saab LightStore t\u00f6\u00f6tada ka SQL-p\u00e4ringute ja muude t\u00fc\u00fcpidega.<\/p>\n<h2>Teised arendused<\/h2>\n<p>\nSuvel 2018 tutvustas Marvell, andmem\u00e4lu arendav ettev\u00f5te, uut SSD-kontrollerite seeriat, mis p\u00f5hineb tehisintellekti s\u00fcsteemidel. Arendajad integreerisid NVIDIA s\u00fcva\u00f5ppe kiirendid standardsetesse andmekeskuste ja kliendirakenduste kontrolleritesse. Tulemusena loodi iseseisev arhitektuur, mis tarbib v\u00e4hem energiat v\u00f5rreldes klassikaliste SSD-kontrolleritega. Ettev\u00f5te loodab, et s\u00fcsteem leiab rakendust servaarvutustes, suurandmete anal\u00fc\u00fcsis ja asjade internetis.<\/p>\n<p>Hiljuti v\u00e4rskendati Western Digital Blue salvestusseeriat. Aprillis tutvustasid arendajad lahendust \u2014 WD Blue SSD, mis p\u00f5hineb SanDiski tehnoloogiatel, mille WD soetas aasta tagasi. Uuenenud WD Blue SSD-d eristuvad k\u00f5rgema j\u00f5udluse ja energiat\u00f5hususega. Arhitektuur on \u00fcles ehitatud spetsifikatsiooni j\u00e4rgi <noindex><a rel=\"nofollow\" href=\"https:\/\/ru.wikipedia.org\/wiki\/NVM_Express\">NVMe<\/a><\/noindex>, mis avab juurdep\u00e4\u00e4su PCI Express'i kaudu \u00fchendatud SSD-dele.<\/p>\n<p>See spetsifikatsioon suurendab SSD-de t\u00f5husust suure arvu samaaegsete p\u00e4ringute puhul ja kiirendab juurdep\u00e4\u00e4su andmetele. Lisaks v\u00f5imaldab NVMe standardiseerida SSD-de liidese \u2014 riistvaratootjatel ei pea enam <noindex><a rel=\"nofollow\" href=\"https:\/\/ru.wikipedia.org\/wiki\/NVM_Express#%D0%9F%D1%80%D0%B5%D0%B4%D0%BF%D0%BE%D1%81%D1%8B%D0%BB%D0%BA%D0%B8_%D0%BF%D0%BE%D1%8F%D0%B2%D0%BB%D0%B5%D0%BD%D0%B8%D1%8F\">rahalisi ressursse<\/a><\/noindex> erinevate unikaalsete draiverite, portide ja vormifaktorite arendamiseks.<\/p>\n<h2>Prospects<\/h2>\n<p>\nSSD-ningitud s\u00fcsteemide turg suundub arhitektuuri lihtsustamise, komponentide t\u00f6\u00f6 automatiseerimise ja energiat\u00f5hususe suurendamise poole. MIT-i inseneride arendused lahendavad viimase \u00fclesande. Autorid <noindex><a rel=\"nofollow\" href=\"http:\/\/news.mit.edu\/2019\/solid-state-drives-flash-storage-data-center-efficiency-0403\">loodavad<\/a><\/noindex>, et LightStore saab olema t\u00f6\u00f6stusstandard SSD-salvestite jaoks andmekeskustes. V\u00f5ib eeldada, et tulevikus luuakse selle p\u00f5hjal uusi, veelgi efektiivsemaid arhitektuure.<\/p>\n<p>\nM\u00f5ned materjalid esimesest blogist ettev\u00f5tte IaaS kohta:<\/p>\n<ul>\n<li><noindex><a rel=\"nofollow\" href=\"https:\/\/iaas-blog.it-grad.ru\/ploshhadki\/razvitie-data-centrov-texnologicheskie-trendy-2\/\">Andmekeskuste areng: tehnoloogia suundumused<\/a><\/noindex><\/li>\n<li><noindex><a rel=\"nofollow\" href=\"https:\/\/iaas-blog.it-grad.ru\/kejsy\/hybrid-cloud-for-avito\/\">Avito.ru: kuidas IaaS pilv aitab ettev\u00f5tte \u00e4ri korraldamisel<\/a><\/noindex><\/li>\n<li><noindex><a rel=\"nofollow\" href=\"https:\/\/iaas-blog.it-grad.ru\/proizvoditelnost\/kak-povysit-energoeffektivnost-data-centra\/\">Kuidas t\u00f5sta andmekeskuse energiat\u00f5husust<\/a><\/noindex><\/li>\n<li><noindex><a rel=\"nofollow\" href=\"https:\/\/iaas-blog.it-grad.ru\/novosti\/chto-nuzhno-znat-o-pci-dss-obzor-standarta\/\">Mida on vaja teada PCI DSS-st: standardi \u00fclevaade<\/a><\/noindex><\/li>\n<li><noindex><a rel=\"nofollow\" href=\"https:\/\/iaas-blog.it-grad.ru\/tendencii\/pochemu-korporativnye-zakazchiki-ispolzuyut-virtualnye-mashiny-a-ne-kontejnery\/\">Miks ettev\u00f5tted kasutavad virtuaalmasinaid, mitte konteinerite<\/a><\/noindex><\/li>\n<li><noindex><a rel=\"nofollow\" href=\"https:\/\/iaas-blog.it-grad.ru\/tendencii\/kak-iaas-pomogaet-razvivat-biznes-tri-zadachi-kotorye-reshit-oblako\/\">Kuidas IaaS aitab \u00e4ri arendada: kolm \u00fclesannet, millega pilv hakkama saab<\/a><\/noindex><\/li>\n<li><noindex><a rel=\"nofollow\" href=\"https:\/\/iaas-blog.it-grad.ru\/tendencii\/besservernye-vychisleniya-v-oblake-trend-sovremennosti-ili-neobxodimost\/\">Serveriteta arvutamine pilves \u2013 t\u00e4nap\u00e4eva trend v\u00f5i vajalikus?<\/a><\/noindex><\/li>\n<\/ul>\n<p>Allikas: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/it-grad\/blog\/449476\/\">habr.com<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>C\u0438\u0441\u0442\u0435\u043c\u0430 \u0443\u043c\u0435\u043d\u044c\u0448\u0438\u0442 \u0440\u0430\u0441\u0445\u043e\u0434\u044b \u043d\u0430 \u044d\u043b\u0435\u043a\u0442\u0440\u043e\u044d\u043d\u0435\u0440\u0433\u0438\u044e \u0432 \u0434\u0432\u0430 \u0440\u0430\u0437\u0430. \/ \u0444\u043e\u0442\u043e Andy Melton CC BY-SA \u0417\u0430\u0447\u0435\u043c \u043d\u0443\u0436\u043d\u0430 \u043d\u043e\u0432\u0430\u044f \u0430\u0440\u0445\u0438\u0442\u0435\u043a\u0442\u0443\u0440\u0430 \u041f\u043e \u043e\u0446\u0435\u043d\u043a\u0430\u043c Data Centre Dynamics, \u043a 2030 \u0433\u043e\u0434\u0443 \u044d\u043b\u0435\u043a\u0442\u0440\u043e\u043d\u043d\u044b\u0435 \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432\u0430 \u0431\u0443\u0434\u0443\u0442 \u043f\u043e\u0442\u0440\u0435\u0431\u043b\u044f\u0442\u044c 40% \u0432\u0441\u0435\u0439 \u0432\u044b\u0440\u0430\u0431\u0430\u0442\u044b\u0432\u0430\u0435\u043c\u043e\u0439 \u043d\u0430 \u043f\u043b\u0430\u043d\u0435\u0442\u0435 \u044d\u043d\u0435\u0440\u0433\u0438\u0438. \u041f\u0440\u0438\u0431\u043b\u0438\u0437\u0438\u0442\u0435\u043b\u044c\u043d\u043e 20% \u043e\u0442 \u044d\u0442\u043e\u0433\u043e \u043e\u0431\u044a\u0435\u043c\u0430 \u043f\u0440\u0438\u0434\u0435\u0442\u0441\u044f \u043d\u0430 \u0418\u0422-\u0441\u0435\u043a\u0442\u043e\u0440 \u0438 \u0434\u0430\u0442\u0430-\u0446\u0435\u043d\u0442\u0440\u044b. \u041f\u043e \u0434\u0430\u043d\u043d\u044b\u043c \u0435\u0432\u0440\u043e\u043f\u0435\u0439\u0441\u043a\u0438\u0445 \u0430\u043d\u0430\u043b\u0438\u0442\u0438\u043a\u043e\u0432, \u0426\u041e\u0414 \u0443\u0436\u0435 \u00ab\u0437\u0430\u0431\u0438\u0440\u0430\u044e\u0442\u00bb 1,4% \u0432\u0441\u0435\u0433\u043e [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":24194,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[688],"tags":[],"class_list":["post-32381","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-administrirovanie"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.1.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"C\u0438\u0441\u0442\u0435\u043c\u0430 \u0443\u043c\u0435\u043d\u044c\u0448\u0438\u0442 \u0440\u0430\u0441\u0445\u043e\u0434\u044b \u043d\u0430 \u044d\u043b\u0435\u043a\u0442\u0440\u043e\u044d\u043d\u0435\u0440\u0433\u0438\u044e \u0432 \u0434\u0432\u0430 \u0440\u0430\u0437\u0430.\" \/>\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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