{"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\/da\/blog\/news\/reliz-raspredelennogo-replicziruemogo-blochnogo-ustrojstva-drbd-9-2-0","title":{"rendered":"Udgivelsen af det distribuerede replikerbare bloklager DRBD 9.2.0","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Udgaven af det distribuerede replikerede bloklagersystem DRBD 9.2.0 er offentliggjort. Det muligg\u00f8r oprettelsen af et RAID-1-lignende array best\u00e5ende af flere netv\u00e6rksforbundne diske fra forskellige maskiner (netv\u00e6rks-mirrorsystem). Systemet er designet som et modul til Linux-kernen og distribueres under GPLv2-licensen. DRBD 9.2.0-grenen kan bruges til en gennemsigtig erstatning af drbd 9.x.x og er fuldt kompatibel p\u00e5 protokolniveau, konfigurationsfiler og v\u00e6rkt\u00f8jer.    <\/p>\n<p>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<p>Clustret, der danner lageret, kan best\u00e5 af flere dusin noder placeret b\u00e5de i det lokale netv\u00e6rk og geografisk spredt i forskellige <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/da\/kompaniya\/data-centers\/\"   title=\"data centres\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"4643\">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.      <center><img decoding=\"async\" alt=\"Udgivelsen af det distribuerede replikerbare bloklager DRBD 9.2.0 \" src=\"\/wp-content\/uploads\/2022\/10\/846a30d9f2fab4b218f997648fd4ff70.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/center>    <\/p>\n<p>I den nye version:  <\/p>\n<ul>\n<li class=\"l\"> Forsinkelserne for spejlede skriveforesp\u00f8rgsler er reduceret. En t\u00e6ttere integration med netv\u00e6rksstakken har gjort det muligt at reducere antallet af kontekstskift i planl\u00e6ggeren.\n<li class=\"l\"> Konkurrencen mellem applikations-I\/O og resynkroniserings-I\/O er reduceret ved at optimere l\u00e5sene under resynkronisering af extent.\n<li class=\"l\"> Ydelsens ydeevne ved resynkronisering er betydeligt forbedret p\u00e5 backend-systemer, hvor der anvendes dynamisk pladsering i lageret (\"thin provisioning\"). Ydeevnen er steget ved at kombinere trim\/discard-operationer, som normalt tager betydeligt l\u00e6ngere tid end almindelige skriveoperationer.\n<li class=\"l\"> Underst\u00f8ttelse af netv\u00e6rksnavneomr\u00e5der (network namespaces) er blevet tilf\u00f8jet, hvilket muligg\u00f8r integration med Kubernetes til transmission af netv\u00e6rkstrafik fra replikationer gennem et separat netv\u00e6rk tilknyttet containere i stedet for v\u00e6rtens netv\u00e6rk.\n<li class=\"l\"> Transportmodulet transport_rdma er blevet tilf\u00f8jet til brug som transportmiddel for Infiniband\/RoCE i stedet for TCP\/IP over Ethernet. Brug af det nye transportmiddel reducerer forsinkelser, mindsker CPU-belastningen og muligg\u00f8r dataoverf\u00f8rsel uden un\u00f8dvendige kopieringsoperationer (zero-copy).  <\/ul>\n<p>Kilde: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=57896\">opennet.ru<\/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 5.0.3 - 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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