{"id":112173,"date":"2023-12-13T03:10:13","date_gmt":"2023-12-13T01:10:13","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/opublikovana-platforma-sef-dlya-programmno-upravlyaemyh-flash-nakopitelej"},"modified":"2023-12-13T03:10:13","modified_gmt":"2023-12-13T01:10:13","slug":"opublikovana-platforma-sef-dlya-programmno-upravlyaemyh-flash-nakopitelej","status":"publish","type":"post","link":"https:\/\/prohoster.info\/hr\/blog\/news\/opublikovana-platforma-sef-dlya-programmno-upravlyaemyh-flash-nakopitelej","title":{"rendered":"Objavljena je platforma SEF za programski upravljane Flash ure\u0111aje","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Organizacija Linux Foundation predstavila je prvo izdanje otvorene platforme za softverski upravljane Flash ure\u0111aje SEF (Software Enabled Flash), koja se temelji na kodu koji je predao KIOXIA (prije poznat kao Toshiba Memory Corporation), gdje je Flash memorija izumljena 1980. godine. Izvorni kodovi alata napisani su na programskom jeziku C i distribuiraju se pod BSD licencom. <\/p>\n

\u0418\u043d\u0441\u0442\u0440\u0443\u043c\u0435\u043d\u0442\u0430\u0440\u0438\u0439 \u0432\u043a\u043b\u044e\u0447\u0430\u0435\u0442 \u0432 \u0441\u0435\u0431\u044f \u043d\u0430\u0431\u043e\u0440 \u043f\u0430\u0442\u0447\u0435\u0439 \u0434\u043b\u044f \u044f\u0434\u0440\u0430 Linux, \u0431\u043b\u043e\u0447\u043d\u044b\u0439 \u0434\u0440\u0430\u0439\u0432\u0435\u0440 \u0434\u043b\u044f \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432 SEF (Software Enabled Flash), \u0443\u0442\u0438\u043b\u0438\u0442\u044b \u0434\u043b\u044f \u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u0438\u0437 \u043a\u043e\u043c\u0430\u043d\u0434\u043d\u043e\u0439 \u0441\u0442\u0440\u043e\u043a\u0438, \u043f\u0430\u0440\u0430\u0432\u0438\u0440\u0442\u0443\u0430\u043b\u0438\u0437\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u044b\u0435 SEF-\u0434\u0440\u0430\u0439\u0432\u0435\u0440\u044b \u0434\u043b\u044f QEMU, \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0430 \u0441 API \u0434\u043b\u044f \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u0439, \u043f\u0430\u0442\u0447\u0438 \u0434\u043b\u044f nvme-cli \u0438 FIO, \u0434\u043e\u0431\u0430\u0432\u043b\u044f\u044e\u0449\u0438\u0435 \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0443 SEF. SDK \u0442\u0430\u043a\u0436\u0435 \u0432\u043a\u043b\u044e\u0447\u0430\u0435\u0442 \u044d\u0442\u0430\u043b\u043e\u043d\u043d\u0443\u044e \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u044e \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u0443\u0440\u043e\u0432\u043d\u044f FTL (Flash Translation Layer), \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0438\u0432\u0430\u044e\u0449\u0435\u0433\u043e \u0442\u0440\u0430\u043d\u0441\u043b\u044f\u0446\u0438\u044e \u043a\u043e\u043c\u0430\u043d\u0434 \u0431\u043b\u043e\u0447\u043d\u044b\u0445 \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432 \u0432 \u043e\u0431\u0440\u0430\u0449\u0435\u043d\u0438\u044f \u043a \u0444\u0430\u043a\u0442\u0438\u0447\u0435\u0441\u043a\u043e\u043c\u0443 \u0447\u0438\u043f\u0443 Flash-\u043f\u0430\u043c\u044f\u0442\u0438, \u0441\u0431\u043e\u0440\u043a\u0443 \u043c\u0443\u0441\u043e\u0440\u0430 \u0438 \u0440\u0430\u0441\u043f\u0440\u0435\u0434\u0435\u043b\u0435\u043d\u0438\u0435 \u0434\u0430\u043d\u043d\u044b\u0445 \u043f\u043e \u044f\u0447\u0435\u0439\u043a\u0430\u043c \u043f\u0430\u043c\u044f\u0442\u0438. FTL \u0440\u0435\u0430\u043b\u0438\u0437\u0443\u0435\u0442 \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0443 \u0433\u0438\u0431\u043a\u043e\u0433\u043e \u0440\u0430\u0437\u043c\u0435\u0449\u0435\u043d\u0438\u044f \u0434\u0430\u043d\u043d\u044b\u0445 (FDP — Flexible Data Placement), \u0437\u043e\u043d\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f (ZNS — Zoned Namespace) \u0438 \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u0438 NVMe. <\/p>\n

U obi\u010dnim Flash ure\u0111ajima za vanjske sisteme, ure\u0111aj predstavlja crnu kutiju, dio memorije koji se rezervira za operacije upravljanja, performanse su nepouzdane, a javljaju se nepredvidive latencije zbog unutarnjih aktivnosti kontrolera, na primjer, tokom sakupljanja otpada. Za razliku od tradicionalnih Flash ure\u0111aja, gdje je raspodjelu podataka, izolaciju neispravnih blokova i sakupljanje otpada kontrolira firmware kontrolera, ure\u0111aji s podr\u0161kom za SEF omogu\u0107uju premje\u0161tanje logike niskonivoa rada s Flash \u010dipom na stranu softvera i operativnog sistema. <\/p>\n

SEF omogu\u0107uje izravno upravljanje fizi\u010dkom lokacijom podataka, promjenu algoritama raspodjele optere\u0107enja, upravljanje prioritetima i QoS, uklanjanje dodatnog sloja prevo\u0111enja blokova, anga\u017eiranje cijelog dostupnog kapaciteta, postizanje predvidivog rada s ure\u0111ajem za pohranu te razdvajanje ure\u0111aja na virtualne jedinice, izolirane na razini ulaza\/izlaza s razli\u010ditim prioritetima obrade. Predlo\u017eeni pristup u SEF-u omogu\u0107uje smanjenje tro\u0161kova i pove\u0107anje u\u010dinkovitosti interakcije s ure\u0111ajem za pohranu prilagodbom trenutnim potrebama logike prikupljanja sme\u0107a, rezervacije memorije i raspodjele blokova radi smanjenja tro\u0161enja. <\/p>\n

Na primjer, SEF omogu\u0107uje normalizaciju performansi u uvjetima kori\u0161tenja niza razli\u010ditih ure\u0111aja za pohranu kupljenih u razli\u010ditim vremenima s razli\u010ditim karakteristikama. Za ure\u0111aje za pohranu koji se prvenstveno koriste samo za \u010ditanje, zahvaljuju\u0107i SEF-u mogu\u0107e je koristiti jednostavnije algoritme raspodjele blokova i smanjiti memoriju rezerviranu za sistemske potrebe.
\n
Izvor: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u041e\u0440\u0433\u0430\u043d\u0438\u0437\u0430\u0446\u0438\u044f Linux Foundation \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u0438\u043b\u0430 \u043f\u0435\u0440\u0432\u044b\u0439 \u0432\u044b\u043f\u0443\u0441\u043a \u043e\u0442\u043a\u0440\u044b\u0442\u043e\u0439 \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u044b \u0434\u043b\u044f \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e \u0443\u043f\u0440\u0430\u0432\u043b\u044f\u0435\u043c\u044b\u0445 Flash-\u043d\u0430\u043a\u043e\u043f\u0438\u0442\u0435\u043b\u0435\u0439 SEF (Software Enabled Flash), \u043f\u043e\u0441\u0442\u0440\u043e\u0435\u043d\u043d\u043e\u0439 \u043d\u0430 \u043e\u0441\u043d\u043e\u0432\u0435 \u043a\u043e\u0434\u0430, \u043f\u0435\u0440\u0435\u0434\u0430\u043d\u043d\u043e\u0433\u043e \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u0435\u0439 KIOXIA (\u0434\u043e \u043f\u0435\u0440\u0435\u0438\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u044f Toshiba Memory Corporation), \u0432 \u043a\u043e\u0442\u043e\u0440\u043e\u0439 \u0432 1980 \u0433\u043e\u0434\u0443 \u0431\u044b\u043b\u0430 \u0438\u0437\u043e\u0431\u0440\u0435\u0442\u0435\u043d\u0430 Flash-\u043f\u0430\u043c\u044f\u0442\u044c. \u0418\u0441\u0445\u043e\u0434\u043d\u044b\u0435 \u0442\u0435\u043a\u0441\u0442\u044b \u0438\u043d\u0441\u0442\u0440\u0443\u043c\u0435\u043d\u0442\u0430\u0440\u0438\u044f \u043d\u0430\u043f\u0438\u0441\u0430\u043d\u044b \u043d\u0430 \u044f\u0437\u044b\u043a\u0435 \u0421\u0438 \u0438 \u0440\u0430\u0441\u043f\u0440\u043e\u0441\u0442\u0440\u0430\u043d\u044f\u044e\u0442\u0441\u044f \u043f\u043e\u0434 \u043b\u0438\u0446\u0435\u043d\u0437\u0438\u0435\u0439 BSD. \u0418\u043d\u0441\u0442\u0440\u0443\u043c\u0435\u043d\u0442\u0430\u0440\u0438\u0439 \u0432\u043a\u043b\u044e\u0447\u0430\u0435\u0442 \u0432 \u0441\u0435\u0431\u044f \u043d\u0430\u0431\u043e\u0440 \u043f\u0430\u0442\u0447\u0435\u0439 \u0434\u043b\u044f […]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-112173","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\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\t\t\n\n","aioseo_head_json":{"title":"\ud83e\udd47Objavljena platforma SEF za softverski upravljane Flash ure\u0111aje | ProHoster","description":"Organizacija Linux Foundation predstavila je prvo izdanje otvorene platforme za softverski upravljane Flash ure\u0111aje SEF (Software Enabled Flash), izgra\u0111ene na bazi koda koji je dostavila tvrtka KIOXIA 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