{"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\/da\/blog\/news\/v-yadro-linux-predlozheno-vklyuchit-raspredelyonnoe-replicziruemoe-blochnoe-ustrojstvo-drbd-9","title":{"rendered":"Det foresl\u00e5s at inkludere det distribuerede replikerbare blokdevice DRBD 9 i Linux-kernen.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Der Linux-kernel har f\u00e5et et s\u00e6t patches, der implementerer det distribuerede replicerbare blokdevice DRBD 9, som muligg\u00f8r oprettelsen af et RAID-1-lignende array, dannet af netv\u00e6rks-spejlede lagringsenheder, der er tilsluttet forskellige systemer. Driveren skal f\u00f8rst testes i linux-next branch og g\u00f8res klar til integration i Linux-kernen 7.2. <\/p>\n

Den gamle version af DRBD har v\u00e6ret en del af kernen siden version 2.6.33, der blev udgivet for 16 \u00e5r siden. Koden i kernen er baseret p\u00e5 DRBD 8-branch, som adskiller sig v\u00e6sentligt fra DRBD 9-branch, der blev udgivet i 2015 og ikke er protokolkompatibel. Det er s\u00e5ledes, at DRBD 9-branch er blevet udviklet som et separat eksternt modul, der ikke er blevet synkroniseret med modulet fra den prim\u00e6re kerne. Implementeringen af DRBD i kernen har v\u00e6ret vedligeholdt separat og er 10-15 \u00e5r bagud i forhold til den aktuelle kodebase for DRBD. De foresl\u00e5ede patches er lavet for at lukke det opst\u00e5ede gap. <\/p>\n

DRBD giver mulighed for at samle clusterknudernes lagringsenheder i et enkelt fejltolerant lager. For applikationer og systemet fremst\u00e5r dette lager som et ensartet bloklagringssystem for alle systemer. N\u00e5r DRBD anvendes, sendes alle lokale diskoperationer til andre noder og synkroniseres med diske fra andre maskiner. Hvis en node svigter, forts\u00e6tter lageret automatisk med at fungere ved hj\u00e6lp af de resterende noder. N\u00e5r den fejlfungerende node igen bliver tilg\u00e6ngelig, bringes dens tilstand automatisk op til den nyeste version. <\/p>\n

Klister, der danner lagersystemet, kan best\u00e5 af op til 32 noder, placeret b\u00e5de i lokalt netv\u00e6rk og geografisk adskilt. datacentre<\/a>. Synkronisering i s\u00e5danne distribuerede lagre udf\u00f8res i form af et mesh-netv\u00e6rk \u2014 data spreder sig gennem k\u00e6den fra node til node. Replikation af noder kan foreg\u00e5 i b\u00e5de synkron og asynkron tilstand. For eksempel kan lokalt placerede noder anvende synkron replikation, mens noder p\u00e5 fjerntliggende steder kan anvende asynkron replikation med yderligere komprimering og kryptering af trafikken. <\/p>\n

DRBD 9-grenen adskiller sig ved at abstrahere transportlaget, hvilket muligg\u00f8r kommunikation ikke kun over TCP\/IP, men ogs\u00e5 ved hj\u00e6lp af RDMA\/Infiniband. Sammenlignet med driften over et traditionelt IP-netv\u00e6rk har integrationen af direkte adgang til en anden computers RAM ved hj\u00e6lp af RDMA (Remote Direct Memory Access) gjort det muligt at fordoble ydeevnen af replikeringen, mens CPU-belastningen er reduceret med 50%. Den maksimale st\u00f8rrelse p\u00e5 det synkroniserede lager er \u00f8get til 32 noder. I DRBD 9 er logikken for resynkronisering af noder ogs\u00e5 \u00e6ndret, l\u00e5semekanismerne er revideret, underst\u00f8ttelse af netv\u00e6rkssnavne (network namespace) er tilf\u00f8jet, automatisk status for noderne baseret p\u00e5 aktivitet er sikret, og der er tilf\u00f8jet st\u00f8tte til to-fase commits og distribution af opdateringer i ikke-blokerende tilstand. \"Det
\n
Kilde: opennet.ru<\/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\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\udd47Der er foresl\u00e5et at inkludere den distribuerede replikerede blok-enhed DRBD 9 i Linux-kernen | ProHoster","description":"For Linux-kernen er der foresl\u00e5et et s\u00e6t patches med implementeringen af den distribuerede replikerede blok-enhed DRBD 9, som g\u00f8r det muligt at oprette en form for RAID-1-array, der er dannet af netv\u00e6rks-mirrorerede lagringsenheder.","canonical_url":"https:\/\/prohoster.info\/da\/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":"da_DK","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 \u043d\u0430\u043a\u043e\u043f\u0438\u0442\u0435\u043b\u0435\u0439.","og:url":"https:\/\/prohoster.info\/da\/blog\/news\/v-yadro-linux-predlozheno-vklyuchit-raspredelyonnoe-replicziruemoe-blochnoe-ustrojstvo-drbd-9","og:image":"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg","og:image:secure_url":"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg","og:image:width":350,"og:image:height":350,"article:published_time":"2026-04-06T21:11:56+00:00","article:modified_time":"2026-04-06T21:11:56+00:00","article:publisher":"https:\/\/www.facebook.com\/prohoster","article:author":"https:\/\/www.facebook.com\/prohoster"},"aioseo_meta_data":[],"gt_translate_keys":[{"key":"link","format":"url"}],"_links":{"self":[{"href":"https:\/\/prohoster.info\/da\/wp-json\/wp\/v2\/posts\/167711","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/prohoster.info\/da\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/prohoster.info\/da\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/prohoster.info\/da\/wp-json\/wp\/v2\/users\/8"}],"replies":[{"embeddable":true,"href":"https:\/\/prohoster.info\/da\/wp-json\/wp\/v2\/comments?post=167711"}],"version-history":[{"count":1,"href":"https:\/\/prohoster.info\/da\/wp-json\/wp\/v2\/posts\/167711\/revisions"}],"predecessor-version":[{"id":168099,"href":"https:\/\/prohoster.info\/da\/wp-json\/wp\/v2\/posts\/167711\/revisions\/168099"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/prohoster.info\/da\/wp-json\/wp\/v2\/media\/167712"}],"wp:attachment":[{"href":"https:\/\/prohoster.info\/da\/wp-json\/wp\/v2\/media?parent=167711"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/prohoster.info\/da\/wp-json\/wp\/v2\/categories?post=167711"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/prohoster.info\/da\/wp-json\/wp\/v2\/tags?post=167711"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}