{"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\/cs\/blog\/news\/reliz-raspredelennogo-replicziruemogo-blochnogo-ustrojstva-drbd-9-1-0","title":{"rendered":"Vyd\u00e1n\u00ed distribuovan\u00e9ho replikovateln\u00e9ho blokov\u00e9ho za\u0159\u00edzen\u00ed DRBD 9.1.0","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Byl zve\u0159ejn\u011bn vyd\u00e1n\u00ed distribuovan\u00e9ho replikovan\u00e9ho blokov\u00e9ho za\u0159\u00edzen\u00ed DRBD 9.1.0, kter\u00e9 umo\u017e\u0148uje realizaci podobnosti RAID-1 pole slo\u017een\u00e9ho z v\u00edce disk\u016f r\u016fzn\u00fdch stroj\u016f propojen\u00fdch p\u0159es s\u00ed\u0165 (zrcadlen\u00ed p\u0159es s\u00ed\u0165). Syst\u00e9m je navr\u017een jako modul pro j\u00e1dro Linuxu a \u0161\u00ed\u0159\u00ed se pod licenc\u00ed GPLv2. <\/p>\n

V\u011btev drbd 9.1.0 m\u016f\u017ee b\u00fdt pou\u017eita pro transparentn\u00ed nahrazen\u00ed drbd 9.0.x a je pln\u011b kompatibiln\u00ed na \u00farovni protokolu, konfigura\u010dn\u00edch soubor\u016f a utilit. Zm\u011bny se zam\u011b\u0159uj\u00ed na p\u0159epracov\u00e1n\u00ed mechanismu zamyk\u00e1n\u00ed a jsou zam\u011b\u0159eny na sn\u00ed\u017een\u00ed sout\u011b\u017ee p\u0159i zamyk\u00e1n\u00ed v k\u00f3du zodpov\u011bdn\u00e9m za vstup\/v\u00fdstup v DRBD. Zm\u011bna umo\u017enila zv\u00fd\u0161it v\u00fdkon v konfigurac\u00edch s velk\u00fdm po\u010dtem CPU a NVMe \u00falo\u017ei\u0161ti d\u00edky odstran\u011bn\u00ed \u00fazk\u00e9ho m\u00edsta, kter\u00e9 negativn\u011b ovliv\u0148ovalo v\u00fdkon p\u0159i vysok\u00e9m po\u010dtu paraleln\u00edch vstupn\u011b\/v\u00fdstupn\u00edch po\u017eadavk\u016f z r\u016fzn\u00fdch jader CPU. Jinak je v\u011btev drbd 9.1.0 obdobn\u00e1 vyd\u00e1n\u00ed 9.0.28. <\/p>\n

P\u0159ipom\u00edn\u00e1me, \u017ee DRBD m\u016f\u017ee b\u00fdt pou\u017eit pro slou\u010den\u00ed \u00falo\u017ei\u0161\u0165 uzl\u016f clusteru do jedin\u00e9ho odoln\u00e9ho \u00falo\u017ei\u0161t\u011b. Pro aplikace a syst\u00e9m vypad\u00e1 toto \u00falo\u017ei\u0161t\u011b jako toto\u017en\u00e9 blokov\u00e9 za\u0159\u00edzen\u00ed pro v\u0161echny syst\u00e9my. P\u0159i pou\u017eit\u00ed DRBD jsou v\u0161echny operace s lok\u00e1ln\u00edm diskem odesl\u00e1ny na ostatn\u00ed uzly a synchronizov\u00e1ny s disky jin\u00fdch stroj\u016f. V p\u0159\u00edpad\u011b selh\u00e1n\u00ed jednoho uzlu \u00falo\u017ei\u0161t\u011b automaticky pokra\u010duje v pr\u00e1ci d\u00edky zb\u00fdvaj\u00edc\u00edm uzl\u016fm. Po obnoven\u00ed dostupnosti porouchan\u00e9ho uzlu bude jeho stav automaticky aktualizov\u00e1n. <\/p>\n

Skl\u00e1daj\u00edc\u00ed se z n\u011bkolika des\u00edtek uzl\u016f, kter\u00e9 mohou b\u00fdt um\u00edst\u011bny jak v m\u00edstn\u00ed s\u00edti, tak geograficky rozm\u00edst\u011bny do r\u016fzn\u00fdch datov\u00fdch center<\/a>. Synchronizace v takov\u00fdch rozlehl\u00fdch \u00falo\u017ei\u0161t\u00edch se prov\u00e1d\u00ed pomoc\u00ed technologi\u00ed mesh-s\u00edt\u00ed (data se \u0161\u00ed\u0159\u00ed po \u0159et\u011bzci z uzlu na uzel). Replikace uzl\u016f m\u016f\u017ee prob\u00edhat jak v synchronn\u00edm re\u017eimu, tak i v asynchronn\u00edm. Nap\u0159\u00edklad, lok\u00e1ln\u011b um\u00edst\u011bn\u00e9 uzly mohou prov\u00e1d\u011bt synchronn\u00ed replikaci, zat\u00edmco pro vzd\u00e1len\u011b um\u00edst\u011bn\u00e9 platformy m\u016f\u017ee b\u00fdt pou\u017eita asynchronn\u00ed replikace s dodate\u010dn\u00fdm kompres\u00ed a \u0161ifrov\u00e1n\u00edm provozu. <\/p>\n

\"Vyd\u00e1n\u00ed<\/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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