{"id":105275,"date":"2022-10-11T03:37:41","date_gmt":"2022-10-11T01:37:42","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/reliz-raspredelennogo-replicziruemogo-blochnogo-ustrojstva-drbd-9-2-0"},"modified":"2022-10-11T03:37:41","modified_gmt":"2022-10-11T01:37:42","slug":"reliz-raspredelennogo-replicziruemogo-blochnogo-ustrojstva-drbd-9-2-0","status":"publish","type":"post","link":"https:\/\/prohoster.info\/ro\/blog\/news\/reliz-raspredelennogo-replicziruemogo-blochnogo-ustrojstva-drbd-9-2-0","title":{"rendered":"Lansarea dispozitivului bloc distribuit \u0219i replicat DRBD 9.2.0","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>A fost lansat\u0103 versiunea 9.2.0 a dispozitivului bloc replicabil distribuit DRBD, care permite realizarea unei simul\u0103ri a unui RAID-1 format din mai multe discuri ale ma\u0219inilor conectate \u00een re\u021bea (mirrorizare prin re\u021bea). Sistemul este proiectat ca un modul pentru kernelul Linux \u0219i este distribuit sub licen\u021ba GPLv2. Ramura drbd 9.2.0 poate fi utilizat\u0103 pentru a \u00eenlocui transparent drbd 9.x.x \u0219i este complet compatibil\u0103 la nivel de protocol, fi\u0219iere de configurare \u0219i utilitare.    <\/p>\n<p>DRBD ofer\u0103 posibilitatea de a uni unit\u0103\u021bile de stocare ale nodurilor din cluster \u00eentr-un singur sistem de stocare tolerant la defec\u021biuni. Pentru aplica\u021bii \u0219i sistem, acest sistem de stocare apare ca un dispozitiv de bloc uniform pentru toate sistemele. Atunci c\u00e2nd se folose\u0219te DRBD, toate opera\u021biunile cu discurile locale sunt trimise pe alte noduri \u0219i sincronizate cu discurile altor ma\u0219ini. \u00cen cazul \u00een care un nod e\u0219ueaz\u0103, sistemul de stocare continu\u0103 automat s\u0103 func\u021bioneze datorit\u0103 nodurilor r\u0103mase. La restabilirea accesibilit\u0103\u021bii nodului defect, starea sa va fi actualizat\u0103 automat la versiunea curent\u0103.     <\/p>\n<p>\u00cen cadrul clusterului care formeaz\u0103 depozitul, pot fi incluse c\u00e2teva zeci de noduri, localizate at\u00e2t \u00een re\u021beaua local\u0103, c\u00e2t \u0219i distribuite geografic \u00een diferite <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/ro\/kompaniya\/data-centers\/\"   title=\"centre de date\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"4643\">centre de date<\/a>. Sincronizarea \u00een aceste depozite distribuite se efectueaz\u0103 utiliz\u00e2nd tehnologii de re\u021bea mesh (datele se propag\u0103 de la un nod la altul \u00een lan\u021b). Replicarea nodurilor poate fi realizat\u0103 at\u00e2t \u00een mod sincron, c\u00e2t \u0219i \u00een mod asincron. De exemplu, nodurile localizate pot aplica replicarea sincron, iar pentru site-urile remote poate fi utilizat\u0103 replicarea asincron\u0103 cu comprimare \u0219i criptare suplimentar\u0103 a traficului.      <center><img decoding=\"async\" alt=\"Lansarea dispozitivului bloc distribuit \u0219i replicat DRBD 9.2.0 \" src=\"\/wp-content\/uploads\/2022\/10\/846a30d9f2fab4b218f997648fd4ff70.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/center>    <\/p>\n<p>\u00cen noua versiune:  <\/p>\n<ul>\n<li class=\"l\"> S-au redus \u00eent\u00e2rzierile pentru cererile de scriere replicate. O integrare mai str\u00e2ns\u0103 cu stiva de re\u021bea a permis reducerea num\u0103rului de schimb\u0103ri de context ale planificatorului.\n<li class=\"l\"> S-a redus concuren\u021ba \u00eentre I\/O-ul aplica\u021biilor \u0219i I\/O-ul de resincronizare prin optimizarea bloc\u0103rilor \u00een timpul resincroniz\u0103rii extentsurilor.\n<li class=\"l\"> Performan\u021ba resincroniz\u0103rii a fost semnificativ \u00eembun\u0103t\u0103\u021bit\u0103 \u00een backend-urile care utilizeaz\u0103 alocarea dinamic\u0103 a spa\u021biului de stocare (&#171;thin provisioning&#187;). Aceast\u0103 performan\u021b\u0103 a fost crescut\u0103 gra\u021bie combin\u0103rii opera\u021biunilor de trim\/discard, care dureaz\u0103 semnificativ mai mult dec\u00e2t opera\u021biile obi\u0219nuite de scriere.\n<li class=\"l\"> A fost ad\u0103ugat\u0103 suportul pentru spa\u021biile de nume re\u021bea (network namespaces), care a permis integrarea cu Kubernetes pentru transmiterea traficului de re\u021bea al replic\u0103rilor printr-o re\u021bea separat\u0103 asociat\u0103 containerelor, \u00een loc de re\u021beaua mediului gazd\u0103.\n<li class=\"l\"> A fost ad\u0103ugat modulul transport_rdma pentru a fi utilizat ca transport Infiniband\/RoCE \u00een loc de TCP\/IP peste Ethernet. Utilizarea noului transport permite reducerea \u00eent\u00e2rzierilor, diminuarea sarcinii pe CPU \u0219i asigurarea ob\u021binerii datelor f\u0103r\u0103 opera\u021bii suplimentare de copiere (zero-copy).  <\/ul>\n<p>Sursa: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=57896\">opennet.ro<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d \u0440\u0435\u043b\u0438\u0437 \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 9.2.0, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0435\u0433\u043e \u0440\u0435\u0430\u043b\u0438\u0437\u043e\u0432\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 \u043e\u0431\u044a\u0435\u0434\u0438\u043d\u0451\u043d\u043d\u044b\u0445 \u043f\u043e \u0441\u0435\u0442\u0438 \u043d\u0435\u0441\u043a\u043e\u043b\u044c\u043a\u0438\u0445 \u0434\u0438\u0441\u043a\u043e\u0432 \u0440\u0430\u0437\u043d\u044b\u0445 \u043c\u0430\u0448\u0438\u043d (\u0437\u0435\u0440\u043a\u0430\u043b\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435 \u043f\u043e \u0441\u0435\u0442\u0438). \u0421\u0438\u0441\u0442\u0435\u043c\u0430 \u043e\u0444\u043e\u0440\u043c\u043b\u0435\u043d\u0430 \u0432 \u0432\u0438\u0434\u0435 \u043c\u043e\u0434\u0443\u043b\u044f \u0434\u043b\u044f \u044f\u0434\u0440\u0430 Linux \u0438 \u0440\u0430\u0441\u043f\u0440\u043e\u0441\u0442\u0440\u0430\u043d\u044f\u0435\u0442\u0441\u044f \u043f\u043e\u0434 \u043b\u0438\u0446\u0435\u043d\u0437\u0438\u0435\u0439 GPLv2. \u0412\u0435\u0442\u043a\u0430 drbd 9.2.0 \u043c\u043e\u0436\u0435\u0442 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u044c\u0441\u044f \u0434\u043b\u044f \u043f\u0440\u043e\u0437\u0440\u0430\u0447\u043d\u043e\u0439 \u0437\u0430\u043c\u0435\u043d\u044b drbd 9.x.x \u0438 \u043f\u043e\u043b\u043d\u043e\u0441\u0442\u044c\u044e \u0441\u043e\u0432\u043c\u0435\u0441\u0442\u0438\u043c\u0430 \u043d\u0430 \u0443\u0440\u043e\u0432\u043d\u0435 \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b\u0430, \u0444\u0430\u0439\u043b\u043e\u0432 [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":105276,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-105275","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.2.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d \u0440\u0435\u043b\u0438\u0437 \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 9.2.0, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0435\u0433\u043e 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\u0441\u0435\u0440\u0432\u0435\u0440\u044b","og:type":"article","og:title":"\ud83e\udd47\u0420\u0435\u043b\u0438\u0437 \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 9.2.0 | ProHoster","og:description":"\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d \u0440\u0435\u043b\u0438\u0437 \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 9.2.0, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0435\u0433\u043e \u0440\u0435\u0430\u043b\u0438\u0437\u043e\u0432\u0430\u0442\u044c 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