{"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\/ro\/blog\/news\/v-yadro-linux-predlozheno-vklyuchit-raspredelyonnoe-replicziruemoe-blochnoe-ustrojstvo-drbd-9","title":{"rendered":"S-a propus includerea \u00een nucleul Linux a dispozitivului de bloc replicabil distribuit DRBD 9","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Pentru nucleul Linux a fost propus un set de patch-uri cu implementarea dispozitivului de stocare replicat distribuit DRBD 9, care permite crearea unei structuri asem\u0103n\u0103toare unui RAID-1, format\u0103 din unit\u0103\u021bi de stocare replicabile prin re\u021bea, conectate la sisteme diferite. Driverul va fi mai \u00eent\u00e2i testat \u00een ramura linux-next \u0219i preg\u0103tit pentru integrarea \u00een nucleul Linux 7.2. <\/p>\n

Varianta veche a DRBD este disponibil\u0103 \u00een nucleu \u00eencep\u00e2nd cu versiunea 2.6.33, lansat\u0103 acum 16 ani. Codul existent \u00een nucleu se bazeaz\u0103 pe ramura DRBD 8, care difer\u0103 semnificativ de ramura DRBD 9, lansat\u0103 \u00een 2015 \u0219i incompatibil\u0103 la nivel de protocol. Astfel, ramura DRBD 9 a evoluat ca un modul extern separat, nesincronizat cu modulul din nucleul principal. Implementarea actual\u0103 a DRBD a fost gestionat\u0103 separat \u0219i este cu 10-15 ani \u00een urm\u0103 fa\u021b\u0103 de codul de baz\u0103 actual al DRBD. Patch-urile propuse au fost create pentru a elimina aceast\u0103 bre\u0219\u0103. <\/p>\n

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

Clusterul care formeaz\u0103 sistemul de stocare poate include p\u00e2n\u0103 la 32 de noduri, plasate at\u00e2t \u00een re\u021bea local\u0103, c\u00e2t \u0219i \u00een loca\u021bii geografic distincte. centre de date<\/a>. Sincronizarea \u00een astfel de depozite ramificate se realizeaz\u0103 sub forma unei re\u021bele mesh \u2014 datele se disperseaz\u0103 \u00een lan\u021b de la un nod la altul. Replica nodurilor poate fi efectuat\u0103 at\u00e2t \u00een mod sincron, c\u00e2t \u0219i \u00een mod asincron. De exemplu, nodurile amplasate local pot utiliza replicarea sincron\u0103, iar pentru nodurile din loca\u021bii \u00eendep\u0103rtate, se poate aplica replicarea asincron\u0103, cu comprimare \u0219i criptare suplimentar\u0103 a traficului. <\/p>\n

Ramura DRBD 9 se caracterizeaz\u0103 prin abstractizarea nivelului de transport, permi\u021b\u00e2nd implementarea canalelor de comunicare nu doar prin TCP\/IP, ci \u0219i folosind RDMA\/Infiniband. Comparativ cu func\u021bionarea pe o re\u021bea IP tradi\u021bional\u0103, integrarea accesului direct la memoria operativ\u0103 a altui computer prin RDMA (Remote Direct Memory Access) a permis dublarea performan\u021bei replic\u0103rii, reduc\u00e2nd \u00een acela\u0219i timp \u00eenc\u0103rc\u0103tura pe CPU cu 50%. Dimensiunea maxim\u0103 a stoc\u0103rii sincronizate a fost crescut\u0103 la 32 de noduri. \u00cen DRBD 9 a fost schimbat\u0103 \u0219i logica de resincronizare a nodurilor, a fost revizuit mecanismul de stabilire a blocajelor, a fost ad\u0103ugat\u0103 suportul pentru spa\u021biul de nume de re\u021bea (network namespace), asigur\u00e2ndu-se configurarea automat\u0103 a statusului nodului \u00een func\u021bie de activitate, a fost ad\u0103ugat\u0103 suportul pentru commit-uri \u00een dou\u0103 faze \u0219i distribuirea actualiz\u0103rilor \u00een mod non-blocant. \"S-a
\n
Sursa: opennet.ro<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\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 […]<\/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\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\n","aioseo_head_json":{"title":"\ud83e\udd47A fost propus\u0103 includerea dispozitivului de bloc replicat distribuit DRBD 9 \u00een kernelul Linux | ProHoster","description":"Pentru kernelul Linux a fost propus un set de patch-uri cu implementarea unui dispozitiv de bloc replicat distribuit DRBD 9, care permite crearea unui sistem similar cu un RAID-1, format din unit\u0103\u021bi de stocare care sunt oglindite prin re\u021bea.","canonical_url":"https:\/\/prohoster.info\/ro\/blog\/news\/v-yadro-linux-predlozheno-vklyuchit-raspredelyonnoe-replicziruemoe-blochnoe-ustrojstvo-drbd-9","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"ro_RO","og:site_name":"ProHoster | \u041a\u0443\u043f\u0438\u0442\u044c \u043d\u0430\u0434\u0435\u0436\u043d\u044b\u0439 \u0445\u043e\u0441\u0442\u0438\u043d\u0433 \u0434\u043b\u044f \u0441\u0430\u0439\u0442\u043e\u0432 \u0441 \u0437\u0430\u0449\u0438\u0442\u043e\u0439 \u043e\u0442 DDoS, VPS VDS \u0441\u0435\u0440\u0432\u0435\u0440\u044b","og:type":"article","og:title":"\ud83e\udd47\u0412 \u044f\u0434\u0440\u043e Linux \u043f\u0440\u0435\u0434\u043b\u043e\u0436\u0435\u043d\u043e \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u044c \u0440\u0430\u0441\u043f\u0440\u0435\u0434\u0435\u043b\u0451\u043d\u043d\u043e\u0435 \u0440\u0435\u043f\u043b\u0438\u0446\u0438\u0440\u0443\u0435\u043c\u043e\u0435 \u0431\u043b\u043e\u0447\u043d\u043e\u0435 \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432\u043e DRBD 9 | ProHoster","og:description":"\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 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