{"id":41682,"date":"2020-02-14T08:42:37","date_gmt":"2020-02-14T05:42:37","guid":{"rendered":"https:\/\/prohoster.info\/blog\/blog_prohoster\/backblaze-statistika-zhestkih-diskov-za-2019"},"modified":"2020-02-14T08:42:37","modified_gmt":"2020-02-14T05:42:37","slug":"backblaze-statistika-zhestkih-diskov-za-2019","status":"publish","type":"post","link":"https:\/\/prohoster.info\/it\/blog\/backblaze-statistika-zhestkih-diskov-za-2019","title":{"rendered":"Backblaze \u2014 statistiche degli hard disk nel 2019","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p><img decoding=\"async\" alt=\"Backblaze \u2014 statistiche degli hard disk nel 2019\" src=\"\/wp-content\/uploads\/2020\/02\/45e329c5bd79d3ac657e5bb62bac1c1f.png\" style=\"display:block;margin: 0 auto;\" \/><\/p>\n<p><\/p>\n<p>Al 31 dicembre 2019, avevamo 124.956 hard disk funzionanti. Di questi, 2.229 erano di avvio e 122.658 contenevano dati. In questa panoramica esamineremo le statistiche dei guasti tra gli hard disk con dati. Analizzeremo anche le versioni da 12 e 14 TB e i nuovi 16 TB, che stiamo utilizzando attivamente dall'inizio del quarto trimestre del 2019. <\/p>\n<p><\/p>\n<h3 id=\"statistika-za-2019-god\">Statistiche del 2019<\/h3>\n<p><\/p>\n<p>Alla fine del 2019, abbiamo monitorato 122.658 hard disk utilizzati per l'archiviazione dei dati. Abbiamo escluso dal calcolo gli hard disk utilizzati per i test e quelli che non avevano accumulato circa 5.000 giorni-disco (per modello) nel quarto trimestre. In questo modo, abbiamo raccolto dati basati su 122.507 hard disk. La tabella qui sotto mostra le nostre statistiche:<\/p>\n<p><noindex><a rel=\"nofollow\" name=\"habracut\"><\/a><\/noindex><\/p>\n<p><img decoding=\"async\" alt=\"Backblaze \u2014 statistiche degli hard disk nel 2019\" src=\"\/wp-content\/uploads\/2020\/02\/4dce1a6c36a7e6e445695c312a615142.png\" style=\"display:block;margin: 0 auto;\" \/><\/p>\n<p><\/p>\n<h3 id=\"zametki-i-nablyudeniya\">Note e osservazioni<\/h3>\n<p><\/p>\n<p>151 hard disk (122.658 meno 122.507) non sono stati inclusi nelle statistiche. Questi dischi erano utilizzati per i test o non avevano accumulato un totale di 5.000 giorni-disco durante il quarto trimestre del 2019. Pertanto, escludiamo dalle statistiche i dischi che riteniamo non abbiano funzionato abbastanza da consentire di trarre conclusioni.<\/p>\n<p><\/p>\n<p>L'unico disco infallibile del 2019 \u00e8 stato il Toshiba da 4 TB, modello: MD04ABA400V. Questo \u00e8 un ottimo risultato, ma poich\u00e9 abbiamo avuto relativamente pochi di questi dischi, in caso di guasto di un solo disco, avremmo avuto un tasso di guasto di circa 0,92%. Comunque bene, ma non pi\u00f9 0%.<\/p>\n<p><\/p>\n<p>Il Toshiba 14 TB, modello MG07ACA14TA, mostra risultati molto buoni con un AFR dello 0,65% e si colloca al livello dei dischi HGST. I dischi Seagate da 6 TB e 10 TB si mantengono stabilmente allo 0,96% e 1,00% rispettivamente.<\/p>\n<p><\/p>\n<p>Il tasso AFR per il 2019 per tutti i dischi \u00e8 stato dell'1,89%, significativamente pi\u00f9 alto rispetto al 2018. Ne discuteremo pi\u00f9 avanti.<\/p>\n<p><\/p>\n<h3 id=\"za-predelami-statistiki---skrytye-modeli-diskov\">Al di l\u00e0 delle statistiche \u2014 i modelli \"nascosti\" di dischi<\/h3>\n<p><\/p>\n<p>Molti modelli non sono stati inclusi nelle nostre statistiche del 2019, poich\u00e9 hanno funzionato per un tempo insufficiente. Vogliamo parlare di questi modelli e di come li utilizziamo.<\/p>\n<p><\/p>\n<h3 id=\"seagate-16-tb\">Seagate da 16 TB<\/h3>\n<p><\/p>\n<p>Nel quarto trimestre del 2019 abbiamo avviato la qualificazione dei dischi Seagate da 16 TB, modello: ST16000NM001G. A fine quarto trimestre avevamo 40 unit\u00e0, per un totale di 1.440 giorni disco, ben al di sotto della soglia di 5.000 giorni per le nostre statistiche del 2019. Nel quarto trimestre non ci sono stati guasti tra questi dischi. In caso di superamento della nostra qualificazione, saranno utilizzati per il nostro <noindex><a rel=\"nofollow\" href=\"https:\/\/www.backblaze.com\/blog\/drive-stats-update\">progetto di migrazione<\/a><\/noindex> di quest'anno.<\/p>\n<p><\/p>\n<h3 id=\"toshiba-8-tb\">Toshiba 8 TB<\/h3>\n<p><\/p>\n<p>Nel quarto trimestre del 2019 erano disponibili 20 unit\u00e0 Toshiba da 8 TB, modello: HDWF180. Questi dischi hanno funzionato per due anni. Nel quarto trimestre hanno totalizzato solo 1.840 giorni lavorativi, al di sotto della soglia statistica, ma la loro durata complessiva \u00e8 di 13.994 giorni con solo un guasto, il che ci offre un AFR del 2,6%. Ci piacciono questi dischi, ma quando siamo stati in grado di acquistarli in quantit\u00e0 sufficienti, il loro costo \u00e8 stato equivalente a quello dei dischi da 12 TB. Maggiore capacit\u00e0, stesso prezzo. Dato che stiamo passando a dischi da 16 TB o pi\u00f9, \u00e8 probabile che non acquisteremo pi\u00f9 questi dischi in futuro.<\/p>\n<p><\/p>\n<h3 id=\"hgst-10-tb\">HGST 10 TB<\/h3>\n<p><\/p>\n<p>Sono in funzione 20 dischi HGST da 10 TB, modello: HUH721010ALE600. Questi dischi sono stati in uso per poco pi\u00f9 di un anno. Si trovano nello stesso archivio di Backblaze dei dischi Seagate da 10 TB. Nei 4 trimestri, i dischi HGST hanno operato per un totale di 1.840 giorni e, dall'installazione, per 8.042 giorni. Non ci sono stati guasti. Come nel caso dei Toshiba da 8 TB, \u00e8 poco probabile l'acquisto di ulteriori versioni da 10 TB.<\/p>\n<p><\/p>\n<h3 id=\"toshiba-16-tb\">Toshiba da 16 TB<\/h3>\n<p><\/p>\n<p>Non li troverete nelle statistiche del quarto trimestre, ma nel primo trimestre del 2020 abbiamo aggiunto 20 dischi Toshiba da 16 TB, modello: MG08ACA16TA. Hanno operato per un totale di 100 giorni, quindi \u00e8 prematuro parlare di qualsiasi cosa al di fuori delle statistiche del primo trimestre 2020.<\/p>\n<p><\/p>\n<h3 id=\"sravnenie-statistiki-zhestkih-diskov-za-2017-2018-i-2019-gg\">Confronto delle statistiche degli hard disk per il 2017, 2018 e 2019.<\/h3>\n<p><\/p>\n<p>Nella tabella sottostante, vengono confrontati i tassi annuali di guasto (AFR) per ciascuno degli ultimi tre anni:<\/p>\n<p><\/p>\n<p><img decoding=\"async\" alt=\"Backblaze \u2014 statistiche degli hard disk nel 2019\" src=\"\/wp-content\/uploads\/2020\/02\/bd528ebe7b586d6845744be3ae9464b0.png\" style=\"display:block;margin: 0 auto;\" \/><\/p>\n<p><\/p>\n<h3 id=\"rost-afr-v-2019-godu\">Aumento dell'AFR nel 2019<\/h3>\n<p><\/p>\n<p>\u041e\u0431\u0449\u0438\u0439 AFR \u0437\u0430 2019 \u0433\u043e\u0434 \u0437\u043d\u0430\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e \u0432\u044b\u0440\u043ec. AFR \u0443\u0432\u0435\u043b\u0438\u0447\u0438\u043b\u0441\u044f \u0434\u043b\u044f 75% \u043c\u043e\u0434\u0435\u043b\u0435\u0439 \u0441 2018 \u043f\u043e 2019 \u0433\u043e\u0434. \u0417\u0430 \u044d\u0442\u0438\u043c \u0440\u043e\u0441\u0442\u043e\u043c \u0441\u0442\u043e\u044f\u0442 \u0434\u0432\u0430 \u043e\u0441\u043d\u043e\u0432\u043d\u044b\u0445 \u0444\u0430\u043a\u0442\u043e\u0440\u0430. \u0412\u043e-\u043f\u0435\u0440\u0432\u044b\u0445, \u0432\u0441\u044f \u043b\u0438\u043d\u0435\u0439\u043a\u0430 8 \u0422\u0411 \u0434\u0438\u0441\u043a\u043e\u0432 \u0438\u0441\u043f\u044b\u0442\u044b\u0432\u0430\u0435\u0442 &quot;\u043a\u0440\u0438\u0437\u0438\u0441 \u0441\u0440\u0435\u0434\u043d\u0435\u0433\u043e \u0432\u043e\u0437\u0440\u0430\u0441\u0442\u0430&quot; \u043f\u043e \u043c\u0435\u0440\u0435 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u044f. \u0421\u0430\u043c\u044b\u0435 \u0432\u044b\u0441\u043e\u043a\u0438\u0435 AFR \u043f\u043e\u043a\u0430\u0437\u044b\u0432\u0430\u044e\u0442 \u0434\u0438\u0441\u043a\u0438, \u0432\u0445\u043e\u0434\u044f\u0449\u0438\u0435 \u0432 \u0433\u0440\u0443\u043f\u043f\u0443 8 TB. \u041d\u0435\u0441\u043c\u043e\u0442\u0440\u044f \u043d\u0430 \u0442\u0430\u043a\u043e\u0439 \u0431\u043e\u043b\u044c\u0448\u043e\u0439 \u043f\u043e\u043a\u0430\u0437\u0430\u0442\u0435\u043b\u044c AFR, \u0441\u0438\u043b\u044c\u043d\u043e \u043f\u0435\u0440\u0435\u0436\u0438\u0432\u0430\u0442\u044c \u043d\u0435 \u0441\u0442\u043e\u0438\u0442. \u0414\u0435\u043b\u043e \u0432 \u0442\u043e\u043c, \u0447\u0442\u043e \u044d\u0442\u0438 \u0434\u0438\u0441\u043a\u0438 \u043d\u0430\u0440\u0430\u0431\u043e\u0442\u0430\u043b\u0438 1\/4 \u0434\u043d\u0435\u0439 \u043e\u0442 \u0432\u0441\u0435\u0439 \u043d\u0430\u0448\u0435\u0439 \u0441\u0442\u0430\u0442\u0438\u0441\u0442\u0438\u043a\u0438 \u0438 \u043c\u0430\u043b\u0435\u0439\u0448\u0438\u0435 \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u044f \u043c\u043e\u0433\u0443\u0442 \u043d\u0430 \u043d\u0435\u0435 \u043f\u043e\u0432\u043b\u0438\u044f\u0442\u044c. \u0412\u0442\u043e\u0440\u043e\u0439 \u0444\u0430\u043a\u0442\u043e\u0440 \u2014 \u043d\u0430\u043a\u043e\u043f\u0438\u0442\u0435\u043b\u0438 Seagate \u043d\u0430 12 \u0422\u0411, \u044d\u0442\u0430 \u043f\u0440\u043e\u0431\u043b\u0435\u043c\u0430 \u0430\u043a\u0442\u0438\u0432\u043d\u043e \u0440\u0435\u0448\u0430\u0435\u0442\u0441\u044f \u0432 \u0440\u0430\u043c\u043a\u0430\u0445 \u043f\u0440\u043e\u0435\u043a\u0442\u0430 <noindex><a rel=\"nofollow\" href=\"https:\/\/www.backblaze.com\/blog\/drive-stats-update\">migrazioni a 12 TB<\/a><\/noindex>, di cui si \u00e8 gi\u00e0 parlato in precedenza.<\/p>\n<p><\/p>\n<h3 id=\"migraciya-zamedlyaetsya-a-rost---net\">La migrazione \u00e8 in rallentamento, mentre la crescita continua.<\/h3>\n<p><\/p>\n<p>Nel 2019 abbiamo aggiunto 17.729 nuovi dischi di rete. Nel 2018 la maggior parte dei 14.255 dischi aggiunti \u00e8 stata utilizzata per la migrazione. Nel 2019 meno della met\u00e0 dei nuovi dischi era destinata alla migrazione, mentre gli altri sono stati utilizzati per nuovi sistemi. Nel 2019 abbiamo dismesso 8.800 dischi per un totale di 37 petabyte e li abbiamo sostituiti con 8.800 dischi, tutti da 12 TB, per un totale di circa 105 petabyte, e successivamente, nel 2019, abbiamo aggiunto altri 181 petabyte per lo storage utilizzando dischi da 12 e 14 TB.<\/p>\n<p><\/p>\n<h3 id=\"raznoobrazie\">Variet\u00e0<\/h3>\n<p><\/p>\n<p>La variet\u00e0 dei produttori di dischi ha visto un leggero aumento nel 2019. Nel 2018 i dischi Seagate costituivano il 78,15% dei dischi, mentre alla fine del 2019 questa percentuale \u00e8 scesa al 73,28%. La quota di HGST \u00e8 aumentata dal 20,77% nel 2018 al 23,69% nel 2019, mentre quella di Toshiba \u00e8 passata dall'1,34% nel 2018 al 3,03% nel 2019. Nel 2019 nel centro dati non erano presenti dischi con il marchio Western Digital, poich\u00e9 WDC ha rebranding dei nuovi dischi HGST.<\/p>\n<p><\/p>\n<h3 id=\"statistika-po-sroku-sluzhby\">Statistica sulla durata<\/h3>\n<p><\/p>\n<p>Sebbene il confronto dei tassi annuali di guasto degli hard disk nel corso degli anni sia un ottimo modo per identificare le tendenze, analizziamo anche i tassi annuali di guasto dei nostri hard disk durante l'intero ciclo di vita. Il grafico sottostante mostra la frequenza annuale di guasto di tutti i modelli di pompaggi in produzione al 31 dicembre 2019:<\/p>\n<p><\/p>\n<p><img decoding=\"async\" alt=\"Backblaze \u2014 statistiche degli hard disk nel 2019\" src=\"\/wp-content\/uploads\/2020\/02\/c5130e9baff1c7ea053fdaf8cf8f2433.png\" style=\"display:block;margin: 0 auto;\" \/><\/p>\n<p><\/p>\n<h3 id=\"dannye\">Dati<\/h3>\n<p><\/p>\n<p>L'insieme completo di dati \u00e8 disponibile su <noindex><a rel=\"nofollow\" href=\"https:\/\/www.backblaze.com\/b2\/hard-drive-test-data.html\">la nostra pagina <\/a><\/noindex>.<\/p>\n<p><\/p>\n<p><noindex><a rel=\"nofollow\" href=\"https:\/\/f001.backblazeb2.com\/file\/Backblaze_Blog\/2019_Drive_Stats_Chart_Data.zip\">file ZIP<\/a><\/noindex><\/p>\n<p>Fonte: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/post\/488060\/\">habr.com<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041d\u0430 31 \u0434\u0435\u043a\u0430\u0431\u0440\u044f 2019 \u0433. \u0443 \u043d\u0430\u0441 124 956 \u0440\u0430\u0431\u043e\u0442\u0430\u044e\u0449\u0438\u0445 \u0436\u0435\u0441\u0442\u043a\u0438\u0445 \u0434\u0438\u0441\u043a\u043e\u0432. \u0418\u0437 \u043d\u0438\u0445 2 229 \u0437\u0430\u0433\u0440\u0443\u0437\u043e\u0447\u043d\u044b\u0445 \u0438 122 658 \u0441 \u0434\u0430\u043d\u043d\u044b\u043c\u0438. \u0412 \u0434\u0430\u043d\u043d\u043e\u043c \u043e\u0431\u0437\u043e\u0440\u0435 \u043c\u044b \u0440\u0430\u0441\u0441\u043c\u043e\u0442\u0440\u0438\u043c \u0441\u0442\u0430\u0442\u0438\u0441\u0442\u0438\u043a\u0443 \u043f\u043e \u043e\u0442\u043a\u0430\u0437\u0430\u043c \u0441\u0440\u0435\u0434\u0438 \u0436\u0435\u0441\u0442\u043a\u0438\u0445 \u0434\u0438\u0441\u043a\u043e\u0432 \u0441 \u0434\u0430\u043d\u043d\u044b\u043c\u0438. \u0422\u0430\u043a\u0436\u0435 \u0440\u0430\u0441\u0441\u043c\u043e\u0442\u0440\u0438\u043c 12 \u0438 14 TB \u0432\u0435\u0440\u0441\u0438\u0438 \u0434\u0438\u0441\u043a\u043e\u0432 \u0438 \u043d\u043e\u0432\u044b\u0435 16 TB, \u043a\u043e\u0442\u043e\u0440\u044b\u0435 \u043c\u044b \u0430\u043a\u0442\u0438\u0432\u043d\u043e \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u043c \u0441 \u043d\u0430\u0447\u0430\u043b\u0430 \u0447\u0435\u0442\u0432\u0435\u0440\u0442\u043e\u0433\u043e \u043a\u0432\u0430\u0440\u0442\u0430\u043b\u0430 [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":41683,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[],"tags":[],"class_list":["post-41682","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - 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statistiche sugli hard disk per il 2019 | ProHoster","description":"Al 31 dicembre 2019 avevamo 124.956 hard disk operativi. Di questi, 2.229 erano avviabili e 122.658 contenevano dati. In questa relazione esamineremo le statistiche sui guasti tra gli hard disk contenenti dati. Tratteremo anche le versioni da 12 e 14 TB e i nuovi modelli da 16 TB che utilizziamo attivamente dall'inizio del quarto trimestre.","canonical_url":"https:\/\/prohoster.info\/it\/blog\/backblaze-statistika-zhestkih-diskov-za-2019","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"it_IT","og:site_name":"ProHoster | \u041a\u0443\u043f\u0438\u0442\u044c \u043d\u0430\u0434\u0435\u0436\u043d\u044b\u0439 \u0445\u043e\u0441\u0442\u0438\u043d\u0433 \u0434\u043b\u044f \u0441\u0430\u0439\u0442\u043e\u0432 \u0441 \u0437\u0430\u0449\u0438\u0442\u043e\u0439 \u043e\u0442 DDoS, VPS VDS \u0441\u0435\u0440\u0432\u0435\u0440\u044b","og:type":"article","og:title":"\ud83e\udd47Backblaze \u2014 \u0441\u0442\u0430\u0442\u0438\u0441\u0442\u0438\u043a\u0430 \u0436\u0435\u0441\u0442\u043a\u0438\u0445 \u0434\u0438\u0441\u043a\u043e\u0432 \u0437\u0430 2019 | ProHoster","og:description":"\u041d\u0430 31 \u0434\u0435\u043a\u0430\u0431\u0440\u044f 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