{"id":99277,"date":"2021-02-26T16:22:40","date_gmt":"2021-02-26T14:22:40","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/reliz-raspredelennogo-replicziruemogo-blochnogo-ustrojstva-drbd-9-1-0"},"modified":"2021-02-26T16:22:40","modified_gmt":"2021-02-26T14:22:40","slug":"reliz-raspredelennogo-replicziruemogo-blochnogo-ustrojstva-drbd-9-1-0","status":"publish","type":"post","link":"https:\/\/prohoster.info\/da\/blog\/news\/reliz-raspredelennogo-replicziruemogo-blochnogo-ustrojstva-drbd-9-1-0","title":{"rendered":"Udgivelse af det distribuerede replikerbare bloklagringssystem DRBD 9.1.0","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Den distribuerede replikationsblok-enhed DRBD 9.1.0 er blevet udgivet, hvilket g\u00f8r det muligt at implementere en form for RAID-1-array dannet af netv\u00e6rkssammensluttede diske fra flere maskiner (spejling over netv\u00e6rk). Systemet er designet som et modul til Linux-kernen og distribueres under GPLv2-licensen. <\/p>\n

Grenen drbd 9.1.0 kan anvendes til en gennemskuelig opgradering fra drbd 9.0.x og er fuldt kompatibel p\u00e5 protokolniveau, konfigurationsfiler og v\u00e6rkt\u00f8jer. \u00c6ndringerne fokuserer p\u00e5 at forbedre l\u00e5sningsmekanismen og sigter mod at reducere konkurrencen om l\u00e5sene i den kode, der h\u00e5ndterer input\/output i DRBD. \u00c6ndringen har \u00f8get ydeevnen i konfigurationer med et stort antal CPU'er og NVMe-lagring ved at fjerne flaskehalse, der negativt p\u00e5virker ydeevnen, n\u00e5r der ankommer mange parallelle input\/output-anmodninger fra forskellige CPU-kern. Resten af drbd 9.1.0 ligner udgivelsen 9.0.28. <\/p>\n

Vi minder om, at DRBD kan bruges til at kombinere lagringsenhederne fra clusterknudepunkterne til et enkelt fejlbeskyttet lager. For applikationer og systemet fremst\u00e5r dette lager som et ensartet blok-enhed for alle systemer. Ved brug af DRBD sendes alle operationer med den lokale disk til andre noder og synkroniseres med diske fra andre maskiner. Hvis en node svigter, forts\u00e6tter lageret automatisk driften med de resterende noder. N\u00e5r den svigter node kommer tilg\u00e6ngelig igen, vil dens tilstand automatisk blive opdateret til den aktuelle version. <\/p>\n

Clustret, der danner lageret, kan best\u00e5 af flere dusin noder placeret b\u00e5de i det lokale netv\u00e6rk og geografisk spredt i forskellige data centres<\/a>. Synkronisering i s\u00e5danne distribuerede lagre udf\u00f8res ved hj\u00e6lp af mesh-netv\u00e6rksteknologier (data spredes gennem k\u00e6den fra node til node). Replikation af noder kan udf\u00f8res b\u00e5de i synkron og asynkron tilstand. For eksempel kan lokalt placerede noder anvende synkron replikation, mens asynkron replikation med ekstra komprimering og kryptering af trafikken kan anvendes til fjernliggende placeringer. <\/p>\n

\"Udgivelse<\/center>
\n
Kilde: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\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 9.1.0, \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 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