{"id":167711,"date":"2026-04-06T23:11:55","date_gmt":"2026-04-06T21:11:56","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/v-yadro-linux-predlozheno-vklyuchit-raspredelyonnoe-replicziruemoe-blochnoe-ustrojstvo-drbd-9"},"modified":"2026-04-06T23:11:55","modified_gmt":"2026-04-06T21:11:56","slug":"v-yadro-linux-predlozheno-vklyuchit-raspredelyonnoe-replicziruemoe-blochnoe-ustrojstvo-drbd-9","status":"publish","type":"post","link":"https:\/\/prohoster.info\/hr\/blog\/news\/v-yadro-linux-predlozheno-vklyuchit-raspredelyonnoe-replicziruemoe-blochnoe-ustrojstvo-drbd-9","title":{"rendered":"U Linux kernel predlo\u017eeno je uklju\u010divanje distribuiranog replikabilnog blok ure\u0111aja DRBD 9","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Predlo\u017eeni su setovi zakrpa za Linux kernel sa implementacijom distribuirane replikacijske blok ure\u0111aja DRBD 9, koja omogu\u0107ava stvaranje sli\u010dnosti RAID-1 niza sastavljenog od mre\u017eno repliciranih ure\u0111aja pohranjenih na razli\u010ditim sistemima. Voza\u010d \u0107e se najpre testirati u grani linux-next i dovesti do spremnosti za integraciju u sastav Linux kernela 7.2.     <\/p>\n<p>Stara verzija DRBD uklju\u010dena je u kernel po\u010dev\u0161i od verzije 2.6.33, objavljene pre 16 godina. Kod koji je sada u kernelu bazira se na grani DRBD 8, koja se zna\u010dajno razlikuje od grane DRBD 9, objavljene 2015. godine i koja nije kompatibilna na protokolskom nivou. Dogodilo se da se grana DRBD 9 razvijala kao poseban eksterni modul, koji nije uskla\u0111en sa modulom iz glavnog sastava kernela. Postoje\u0107a implementacija DRBD u kernelu je vo\u0111ena odvojeno i zaostaje za aktuelnom kodnom bazom DRBD za 10-15 godina. Predlo\u017eene zakrpe su stvorene kako bi se uklonio stvoreni raskorak.    <\/p>\n<p>DRBD omogu\u0107ava spajanje ure\u0111aja \u010dvorova klastera u jedinstvenu otpornu pohranu. Za aplikacije i sistem takva pohrana izgleda kao identi\u010dna blok ure\u0111aj za sve sisteme. Kada se koristi DRBD, sve operacije sa lokalnim diskom se \u0161alju na druge \u010dvorove i sinkronizuju sa diskovima drugih ma\u0161ina. U slu\u010daju kvara jednog \u010dvora, pohrana \u0107e automatski nastaviti sa radom zahvaljuju\u0107i preostalim \u010dvorovima. Kada se ponovo uspostavi dostupnost kvara \u010dvora, njegovo stanje \u0107e se automatski dovesti do aktuelnog izgleda.     <\/p>\n<p>U sastav klastera koji formira pohranu mo\u017ee u\u0107i do 32 \u010dvora, sme\u0161tenih kako u lokalnoj mre\u017ei, tako i u teritorijalno udaljenim <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/hr\/kompaniya\/data-centers\/\" title=\"data centrima\" data-wpil-keyword-link=\"linked\">data centrima<\/a>. Sinkronizacija u takvim razgranatim skladi\u0161tima odvija se u obliku mesh-mre\u017ee \u2014 podaci se \u0161ire kroz lanac od \u010dvora do \u010dvora. Replikacija \u010dvorova mo\u017ee se provoditi i u sinkronom i u asinkronom re\u017eimu. Na primjer, lokalno smje\u0161teni \u010dvorovi mogu primjenjivati sinkronu replikaciju, dok se za \u010dvorove na udaljenim lokacijama mo\u017ee primijeniti asinkrona replikacija s dodatnim kompresijom i enkripcijom prometa.    <\/p>\n<p>DRBD 9 grana se odlikuje apstrakcijom transportnog nivoa, \u0161to omogu\u0107ava uspostavljanje komunikacionih kanala ne samo preko TCP\/IP, ve\u0107 i kori\u0161tenjem RDMA\/Infiniband. U pore\u0111enju sa radom preko tradicionalne IP mre\u017ee, integracija direktnog pristupa RAM-u drugog ra\u010dunara putem RDMA (Remote Direct Memory Access) omogu\u0107ila je udvostru\u010denje performansi replikacije uz smanjenje optere\u0107enja na CPU za 50%. Maksimalna veli\u010dina sinhronizovanog skladi\u0161ta pove\u0107ana je na 32 \u010dvora. U DRBD 9 tako\u0111e je promenjena logika resinhronizacije \u010dvorova, revidiran je mehanizam postavljanja zaklju\u010davanja, dodata je podr\u0161ka za mre\u017eni prostor imena (network namespace), obezbe\u0111ena je automatska izrada statusa \u010dvora u zavisnosti od aktivnosti, dodata je podr\u0161ka za dvofazne potvrde i \u0161irenje a\u017euriranja u neblokiraju\u0107em re\u017eimu.    <img decoding=\"async\" alt=\"U Linux kernel predlo\u017eeno je uklju\u010divanje distribuiranog replikabilnog blok ure\u0111aja DRBD 9\" src=\"\/wp-content\/uploads\/2026\/04\/b1358709870d1333355954b71c5dd400.png\" style=\"display:block;margin: 0 auto\" \/><br \/>\n<br \/>Izvor: <a rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=65158\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0414\u043b\u044f \u044f\u0434\u0440\u0430 Linux \u043f\u0440\u0435\u0434\u043b\u043e\u0436\u0435\u043d \u043d\u0430\u0431\u043e\u0440 \u043f\u0430\u0442\u0447\u0435\u0439 \u0441 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0435\u0439 \u0440\u0430\u0441\u043f\u0440\u0435\u0434\u0435\u043b\u0435\u043d\u043d\u043e\u0433\u043e \u0440\u0435\u043f\u043b\u0438\u0446\u0438\u0440\u0443\u0435\u043c\u043e\u0433\u043e \u0431\u043b\u043e\u0447\u043d\u043e\u0433\u043e \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432\u0430 DRBD 9, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0435\u0433\u043e \u0441\u043e\u0437\u0434\u0430\u0442\u044c \u043f\u043e\u0434\u043e\u0431\u0438\u0435 \u043c\u0430\u0441\u0441\u0438\u0432\u0430 RAID-1, \u0441\u0444\u043e\u0440\u043c\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u043e\u0433\u043e \u0438\u0437 \u0437\u0435\u0440\u043a\u0430\u043b\u0438\u0440\u0443\u0435\u043c\u044b\u0445 \u043f\u043e \u0441\u0435\u0442\u0438 \u043d\u0430\u043a\u043e\u043f\u0438\u0442\u0435\u043b\u0435\u0439, \u043f\u043e\u0434\u043a\u043b\u044e\u0447\u0451\u043d\u043d\u044b\u0445 \u043a \u0440\u0430\u0437\u043d\u044b\u043c \u0441\u0438\u0441\u0442\u0435\u043c\u0430\u043c. \u0414\u0440\u0430\u0439\u0432\u0435\u0440 \u043d\u0430\u043c\u0435\u0440\u0435\u043d\u044b \u0432\u043d\u0430\u0447\u0430\u043b\u0435 \u043f\u0440\u043e\u0442\u0435\u0441\u0442\u0438\u0440\u043e\u0432\u0430\u0442\u044c \u0432 \u0432\u0435\u0442\u043a\u0435 linux-next \u0438 \u0434\u043e\u0432\u0435\u0441\u0442\u0438 \u0434\u043e \u0433\u043e\u0442\u043e\u0432\u043d\u043e\u0441\u0442\u0438 \u043a \u0438\u043d\u0442\u0435\u0433\u0440\u0430\u0446\u0438\u0438 \u0432 \u0441\u043e\u0441\u0442\u0430\u0432 \u044f\u0434\u0440\u0430 Linux 7.2. \u0421\u0442\u0430\u0440\u044b\u0439 \u0432\u0430\u0440\u0438\u0430\u043d\u0442 DRBD \u043f\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u0432 \u044f\u0434\u0440\u0435 \u043d\u0430\u0447\u0438\u043d\u0430\u044f \u0441 [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":8,"featured_media":167712,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-167711","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.4 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0414\u043b\u044f \u044f\u0434\u0440\u0430 Linux \u043f\u0440\u0435\u0434\u043b\u043e\u0436\u0435\u043d \u043d\u0430\u0431\u043e\u0440 \u043f\u0430\u0442\u0447\u0435\u0439 \u0441 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0435\u0439 \u0440\u0430\u0441\u043f\u0440\u0435\u0434\u0435\u043b\u0435\u043d\u043d\u043e\u0433\u043e \u0440\u0435\u043f\u043b\u0438\u0446\u0438\u0440\u0443\u0435\u043c\u043e\u0433\u043e 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