{"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\/it\/blog\/novosti-interneta\/reliz-raspredelennogo-replicziruemogo-blochnogo-ustrojstva-drbd-9-1-0","title":{"rendered":"Rilascio della distribuzione di un dispositivo a blocchi replicabile DRBD 9.1.0","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

\u00c8 stata rilasciata la versione 9.1.0 del dispositivo di archiviazione replicato distribuito DRBD, che consente di implementare una configurazione simile a un array RAID-1, costituito da pi\u00f9 dischi di diverse macchine collegati in rete (mirroring su rete). Il sistema \u00e8 realizzato come modulo per il kernel Linux e viene distribuito sotto licenza GPLv2. <\/p>\n

Il branch drbd 9.1.0 pu\u00f2 essere utilizzato per una sostituzione trasparente di drbd 9.0.x ed \u00e8 completamente compatibile a livello di protocollo, file di configurazione e utility. Le modifiche riguardano una revisione del meccanismo di installazione dei lock e sono mirate a ridurre la competizione nell'installazione dei lock nel codice responsabile dell'input\/output in DRBD. Questa modifica ha permesso di aumentare le prestazioni nelle configurazioni con un numero elevato di CPU e con unit\u00e0 NVMe, eliminando il collo di bottiglia che influenzava negativamente le prestazioni durante l'elaborazione di un gran numero di richieste parallele di input\/output da diverse core della CPU. In altri aspetti, il branch drbd 9.1.0 \u00e8 simile alla versione 9.0.28. <\/p>\n

Ricordiamo che DRBD pu\u00f2 essere utilizzato per unire le unit\u00e0 dei nodi del cluster in un'unica soluzione di storage fault-tolerant. Per le applicazioni e il sistema, tale storage appare come un dispositivo di blocco uniforme per tutti i sistemi. Con DRBD, tutte le operazioni sul disco locale vengono inviate ad altri nodi e sincronizzate con i dischi di altre macchine. In caso di guasto di un nodo, lo storage continuer\u00e0 automaticamente a funzionare grazie ai nodi rimanenti. Quando il nodo guasto torna disponibile, il suo stato sar\u00e0 automaticamente aggiornato all\u2019ultima versione. <\/p>\n

Nel cluster che forma lo storage possono essere presenti diverse decine di nodi, ospitati sia nella rete locale che distribuiti geograficamente in posizioni diverse data center<\/a>. La sincronizzazione in archiviazioni ramificate simili avviene utilizzando tecnologie di rete mesh (i dati si diffondono lungo la catena da nodo a nodo). La replica dei nodi pu\u00f2 essere effettuata sia in modalit\u00e0 sincrona che in modalit\u00e0 asincrona. Ad esempio, i nodi collocati localmente possono adottare la replica sincrona, mentre per il trasferimento su sedi remote pu\u00f2 essere applicata la replica asincrona con compressione e crittografia del traffico aggiuntive. <\/p>\n

\"Rilascio<\/center>
\n
Fonte: 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 \u0443\u0440\u043e\u0432\u043d\u0435 \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b\u0430, \u0444\u0430\u0439\u043b\u043e\u0432 […]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":99278,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-99277","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-novosti-interneta"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\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\n","aioseo_head_json":{"title":"\ud83e\udd47 Rilascio del dispositivo a blocchi replicabili distribuiti DRBD 9.1.0 | ProHoster","description":"\u00c8 stata rilasciata la versione 9.1.0 del dispositivo a blocchi replicabili distribuito DRBD, che consente di realizzare un'array simile a RAID-1, composto da dischi di diverse macchine connessi in rete (mirroring su rete). 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