{"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\/hr\/blog\/backblaze-statistika-zhestkih-diskov-za-2019","title":{"rendered":"Backblaze \u2014 statistika tvrdih diskova za 2019.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p><img decoding=\"async\" alt=\"Backblaze \u2014 statistika tvrdih diskova za 2019.\" src=\"\/wp-content\/uploads\/2020\/02\/45e329c5bd79d3ac657e5bb62bac1c1f.png\" style=\"display:block;margin: 0 auto;\" \/><\/p>\n<p><\/p>\n<p>Na 31. prosinca 2019. godine imali smo 124 956 radnih tvrdih diskova. Od njih su 2 229 pokretnih i 122 658 s podacima. U ovom pregledu razmotrit \u0107emo statistiku o kvarovima me\u0111u tvrdim diskovima s podacima. Tako\u0111er \u0107emo razmotriti verzije diskova od 12 i 14 TB, kao i nove 16 TB, koje aktivno koristimo od po\u010detka \u010detvrtog kvartala 2019. godine. <\/p>\n<p><\/p>\n<h3 id=\"statistika-za-2019-god\">Statistika za 2019. godinu<\/h3>\n<p><\/p>\n<p>Na kraju 2019. godine pratili smo 122 658 tvrdih diskova koji se koriste za pohranu podataka. Isklju\u010dili smo diskove koji su se koristili za testiranje i diskove koji nemaju utro\u0161ka ~5 000 disk-dana (na model) tijekom \u010detvrtog kvartala. Na temelju toga prikupili smo podatke o 122 507 tvrdih diskova. U tablici ispod nalaze se na\u0161e statistike:<\/p>\n<p><noindex><a rel=\"nofollow\" name=\"habracut\"><\/a><\/noindex><\/p>\n<p><img decoding=\"async\" alt=\"Backblaze \u2014 statistika tvrdih diskova za 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\">Bilje\u0161ke i zapa\u017eanja<\/h3>\n<p><\/p>\n<p>151 tvrdi disk (122 658 minus 122 507) nije bio uklju\u010den u statistiku. Ovi diskovi kori\u0161teni su za testiranje ili nisu odradili ukupno 5 000 disk-dana tijekom \u010detvrtog kvartala 2019. godine. Tako smo iz statistike isklju\u010dili diskove za koje smatramo da nisu radili dovoljno da bismo mogli donijeti bilo kakve zaklju\u010dke.<\/p>\n<p><\/p>\n<p>Jedini besprijekorni disk za 2019. godinu je 4 TB Toshiba, model: MD04ABA400V. To je izvrstan rezultat, ali s obzirom na to da smo imali relativno malo takvih diskova, u slu\u010daju kvara samo jednog diska dobili bismo stopu od oko 0,92%. I dalje dobro, ali vi\u0161e nije 0%.<\/p>\n<p><\/p>\n<p>Toshiba 14 TB model MG07ACA14TA, pokazuje vrlo dobre rezultate s pokazateljem 0,65% AFR i stoji uz diskove od HGST-a. Seagate 6 TB i 10 TB stabilno se dr\u017ee na razini 0,96% i 1,00% respectively.<\/p>\n<p><\/p>\n<p>Pokazatelj AFR za 2019. godinu za sve diskove je 1,89%, \u0161to je znatno vi\u0161e nego u 2018. godini. O tome \u0107emo razgovarati kasnije.<\/p>\n<p><\/p>\n<h3 id=\"za-predelami-statistiki---skrytye-modeli-diskov\">Izvan statistike \u2014 \"skriveni\" modeli diskova<\/h3>\n<p><\/p>\n<p>Mnogi modeli nisu u\u0161li u na\u0161u statistiku za 2019. godinu, jer nisu radili dovoljno vremena. \u017delimo govoriti o tim modelima i o tome kako ih koristimo.<\/p>\n<p><\/p>\n<h3 id=\"seagate-16-tb\">Seagate 16 TB<\/h3>\n<p><\/p>\n<p>U \u010detvrtom kvartalu 2019. godine zapo\u010deli smo kvalifikaciju Seagate diskova kapaciteta 16 TB, model: ST16000NM001G. Na kraju \u010detvrtog kvartala imali smo 40 ure\u0111aja, \u0161to je ukupno iznosilo 1 440 diskodnevno, zna\u010dajno ispod praga od 5 000 dana za na\u0161u statistiku iz 2019. godine. U \u010detvrtom kvartalu me\u0111u ovim diskovima nije bilo nikakvih kvarova. U slu\u010daju uspje\u0161nog prolaska na\u0161e kvalifikacije, bit \u0107e kori\u0161teni za na\u0161 <noindex><a rel=\"nofollow\" href=\"https:\/\/www.backblaze.com\/blog\/drive-stats-update\">projekt migracije<\/a><\/noindex> ove godine.<\/p>\n<p><\/p>\n<h3 id=\"toshiba-8-tb\">Toshiba 8 TB<\/h3>\n<p><\/p>\n<p>U \u010detvrtom kvartalu 2019. godine bilo je 20 Toshiba 8 TB ure\u0111aja, model: HDWF180. Ovi diskovi su radili dvije godine. U \u010detvrtom kvartalu imali su samo 1 840 radnih dana, \u0161to je ispod praga za statistiku, ali njihov ukupni \u017eivotni vijek iznosi 13 994 dana s kvarom samo jednog diska, \u0161to nam daje AFR od 2,6%. Svi\u0111a nam se da imamo ove diskove, ali kada smo ih mogli kupiti u potrebnoj koli\u010dini, njihova cijena bila je kao i za 12 TB. Ve\u0107i kapacitet, ista cijena. S obzirom na to da prelazimo na diskove od 16 TB i vi\u0161e, vjerojatno ne\u0107emo kupovati ove diskove u budu\u0107nosti.<\/p>\n<p><\/p>\n<h3 id=\"hgst-10-tb\">HGST 10 TB<\/h3>\n<p><\/p>\n<p>U upotrebi je 20 HGST 10 TB ure\u0111aja, model: HUH721010ALE600. Ovi diskovi su u upotrebi ne\u0161to vi\u0161e od godine dana. Nalaze se u istoj Backblaze pohrani kao i Seagate 10 TB diskovi. Tijekom 4 kvartala HGST ure\u0111aji su radili ukupno 1 840 dana, a od trenutka instalacije \u2014 8 042. Bilo je 0 (nula) kvarova. Kao i kod Toshiba 8 TB, nabavka ve\u0107ih koli\u010dina verzije od 10 TB malo je vjerojatna.<\/p>\n<p><\/p>\n<h3 id=\"toshiba-16-tb\">Toshiba 16 TB<\/h3>\n<p><\/p>\n<p>Ne\u0107ete ih na\u0107i u \u010detvrtom kvartalu, ali u prvom kvartalu 2020. godine dodali smo 20 Toshiba diskova kapaciteta 16 TB, model: MG08ACA16TA. Oni su radili ukupno 100 dana, stoga je prerano govoriti o bilo \u010demu osim o statistici za prvi kvartal 2020. godine.<\/p>\n<p><\/p>\n<h3 id=\"sravnenie-statistiki-zhestkih-diskov-za-2017-2018-i-2019-gg\">Usporedba statistike tvrdih diskova za 2017., 2018. i 2019. godinu.<\/h3>\n<p><\/p>\n<p>U donjoj tablici uspore\u0111uju se godi\u0161nji pokazatelji kvarova (AFR) za svake od posljednje tri godine:<\/p>\n<p><\/p>\n<p><img decoding=\"async\" alt=\"Backblaze \u2014 statistika tvrdih diskova za 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\">Pove\u0107anje AFR u 2019. godini<\/h3>\n<p><\/p>\n<p>Op\u0107i AFR za 2019. godinu zna\u010dajno je porastao. AFR se pove\u0107ao za 75% modela od 2018. do 2019. godine. Ovaj rast poti\u010de iz dva glavna faktora. Prvo, cijela linija diskova od 8 TB suo\u010dava se s \"srednjemvjekovnom krizom\" tijekom kori\u0161tenja. Najvi\u0161i AFR pokazuju diskovi koji pripadaju grupi od 8 TB. Unato\u010d tako visokom pokazatelju AFR, nije potrebno previ\u0161e brinuti. Naime, ovi diskovi su radili 1\/4 dana iz cijele na\u0161e statistike i najmanje promjene mogu utjecati na nju. Drugi faktor su 12 TB spremnici tvrtke Seagate, a ovaj problem se aktivno rje\u0161ava u okviru projekta. <noindex><a rel=\"nofollow\" href=\"https:\/\/www.backblaze.com\/blog\/drive-stats-update\">migracije na 12 TB<\/a><\/noindex>, o kojem je ranije izvje\u0161tavano.<\/p>\n<p><\/p>\n<h3 id=\"migraciya-zamedlyaetsya-a-rost---net\">Migracija se usporava, ali rast ne.<\/h3>\n<p><\/p>\n<p>U 2019. godini dodali smo 17.729 novih mre\u017enih diskova. U 2018. godini ve\u0107ina od 14.255 dodanih diskova kori\u0161tena je u okviru migracije. U 2019. godini manje od polovine novih ure\u0111aja namijenjena je migraciji, a ostali su kori\u0161teni za nove sustave. U 2019. godini povukli smo 8.800 diskova u ukupnoj vrijednosti od 37 petabajta i zamijenili ih s 8.800 diskova, svi od 12 TB, \u0161to \u010dini oko 105 petabajta, a zatim smo u 2019. godini dodali jo\u0161 181 petabajt za pohranu podataka koriste\u0107i diskove kapaciteta 12 i 14 TB.<\/p>\n<p><\/p>\n<h3 id=\"raznoobrazie\">Raznolikost<\/h3>\n<p><\/p>\n<p>Raznolikost proizvo\u0111a\u010da po markama ure\u0111aja malo se pove\u0107ala u 2019. godini. U 2018. godini, Seagate diskovi \u010dinili su 78,15% ure\u0111aja, dok je do kraja 2019. godine taj postotak smanjen na 73,28%. HGST je porastao s 20,77% u 2018. na 23,69% u 2019., a Toshiba s 1,34% u 2018. na 3,03% u 2019. U 2019. godini u centru podatkovnog centra nije bilo ure\u0111aja s brend simbolikom Western Digital, budu\u0107i da je WDC provodio rebranding novih HGST diskova.<\/p>\n<p><\/p>\n<h3 id=\"statistika-po-sroku-sluzhby\">Statistika o vijeku trajanja<\/h3>\n<p><\/p>\n<p>Iako je usporedba godi\u0161njih pokazatelja otkaza tvrdih diskova tokom nekoliko godina izvrstan na\u010din za odre\u0111ivanje trendova, tako\u0111er prou\u010davamo stopu godi\u0161njeg otkaza na\u0161ih tvrdih diskova tokom cijelog vijeka trajanja. Na donjem grafikonu prikazana je godi\u0161nja stopa otkaza svih modela diskova koji se proizvode s datumom 31. prosinca 2019. godine:<\/p>\n<p><\/p>\n<p><img decoding=\"async\" alt=\"Backblaze \u2014 statistika tvrdih diskova za 2019.\" src=\"\/wp-content\/uploads\/2020\/02\/c5130e9baff1c7ea053fdaf8cf8f2433.png\" style=\"display:block;margin: 0 auto;\" \/><\/p>\n<p><\/p>\n<h3 id=\"dannye\">Podaci<\/h3>\n<p><\/p>\n<p>Cijeli set podataka dostupan je na <noindex><a rel=\"nofollow\" href=\"https:\/\/www.backblaze.com\/b2\/hard-drive-test-data.html\">na\u0161oj stranici <\/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\">ZIP-datoteka<\/a><\/noindex><\/p>\n<p>Izvor: <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 5.0.5 - aioseo.com -->\n\t<meta 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