{"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\/sk\/blog\/news\/reliz-raspredelennogo-replicziruemogo-blochnogo-ustrojstva-drbd-9-1-0","title":{"rendered":"Vydanie distribuovan\u00e9ho replikovate\u013en\u00e9ho blokov\u00e9ho zariadenia DRBD 9.1.0","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Bol spusten\u00fd release distribuovan\u00e9ho replikovan\u00e9ho blokov\u00e9ho zariadenia DRBD 9.1.0, ktor\u00e9 umo\u017e\u0148uje vytvorenie podobnosti RAID-1 po zosie\u0165ovan\u00ed nieko\u013ek\u00fdch diskov z r\u00f4znych strojov (zrkadlenie po sieti). Syst\u00e9m je navrhnut\u00fd ako modul pre jadro Linux a je distribuovan\u00fd pod licenciou GPLv2. <\/p>\n

Vla\u0148aj\u0161ia verzia drbd 9.1.0 m\u00f4\u017ee by\u0165 pou\u017eit\u00e1 ako transparentn\u00e1 n\u00e1hrada za drbd 9.0.x a je plne kompatibiln\u00e1 na \u00farovni protokolu, konfigura\u010dn\u00fdch s\u00faborov a util\u00edt. Zmeny sa zameriavaj\u00fa na prepracovanie mechanizmu nastavenia z\u00e1mkov a cie\u013eom je zn\u00ed\u017ei\u0165 konkurenciu pri nastavovan\u00ed z\u00e1mkov v k\u00f3de zodpovedaj\u00facom za vstup\/v\u00fdstup v DRBD. Zmena umo\u017enila zlep\u0161i\u0165 v\u00fdkon v konfigur\u00e1ci\u00e1ch s ve\u013ek\u00fdm po\u010dtom CPU a NVMe diskov, a to odstr\u00e1nen\u00edm \u00fazkeho miesta, ktor\u00e9 negat\u00edvne ovplyv\u0148ovalo v\u00fdkon pri spracovan\u00ed ve\u013ek\u00e9ho mno\u017estva paraleln\u00fdch vstupno-v\u00fdstupn\u00fdch po\u017eiadaviek z r\u00f4znych jadier CPU. V ostatnom je verzia drbd 9.1.0 podobn\u00e1 vydaniu 9.0.28. <\/p>\n

Pripom\u00edname, \u017ee DRBD m\u00f4\u017ee by\u0165 pou\u017eit\u00fd na zl\u00fa\u010denie \u00falo\u017en\u00fdch zariaden\u00ed uzlov clustra do jedn\u00e9ho odoln\u00e9ho \u00falo\u017eiska. Pre aplik\u00e1cie a syst\u00e9m vyzer\u00e1 toto \u00falo\u017eisko ako rovnak\u00e9 blokov\u00e9 zariadenie pre v\u0161etky syst\u00e9my. Pri pou\u017eit\u00ed DRBD sa v\u0161etky oper\u00e1cie s lok\u00e1lnym diskom odosielaj\u00fa na in\u00e9 uzly a synchronizuj\u00fa sa s diskami in\u00fdch strojov. V pr\u00edpade v\u00fdpadku jedn\u00e9ho uzla, \u00falo\u017eisko automaticky pokra\u010duje v prev\u00e1dzke v\u010faka zvy\u0161n\u00fdm uzlom. Po obnoven\u00ed dostupnosti zlyh\u00e1vaj\u00faceho uzla sa jeho stav automaticky privedie do aktu\u00e1lneho stavu. <\/p>\n

Do zhluku, ktor\u00fd vytv\u00e1ra \u00falo\u017eisko, m\u00f4\u017ee patri\u0165 nieko\u013eko desiatok uzlov, umiestnen\u00fdch ako v lok\u00e1lnej sieti, tak aj geograficky rozlo\u017een\u00fdch v r\u00f4znych d\u00e1tov\u00fdch centr\u00e1ch<\/a>. Synchroniz\u00e1cia v tak\u00fdchto rozvetven\u00fdch \u00falo\u017eisk\u00e1ch sa vykon\u00e1va pomocou technol\u00f3gi\u00ed mesh siete (\u00fadaje sa \u0161\u00edria re\u0165azcom od uzla k uzlu). Replik\u00e1cia uzlov m\u00f4\u017ee prebieha\u0165 v synchronnom re\u017eime ako aj v asynchronnom pr\u00edpade. Napr\u00edklad, lok\u00e1lne umiestnen\u00e9 uzly m\u00f4\u017eu vykon\u00e1va\u0165 synchronn\u00fa replik\u00e1ciu, zatia\u013e \u010do na vzdialen\u00fdch umiestneniach m\u00f4\u017ee prebieha\u0165 asynchronn\u00e1 replik\u00e1cia s dodato\u010dn\u00fdm kompresovan\u00edm a \u0161ifrovan\u00edm prenosu. <\/p>\n

\"Vydanie<\/center>
\n
Zdroj: 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 \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 9.1.0 \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 9.0.x \u0438 \u043f\u043e\u043b\u043d\u043e\u0441\u0442\u044c\u044e \u0441\u043e\u0432\u043c\u0435\u0441\u0442\u0438\u043c\u0430 \u043d\u0430 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