{"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\/et\/blog\/news\/opublikovana-platforma-sef-dlya-programmno-upravlyaemyh-flash-nakopitelej","title":{"rendered":"Avalikustatud SEF platvorm tarkvaraliselt juhitavatele Flash-m\u00e4luseadmetele","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Linux Foundation esitles avatud platvormi SEF (Software Enabled Flash) jaoks, mis on loodud KIOXIA (endise Toshiba Memory Corporation) koodi p\u00f5hjal. Just siin leiutati 1980. aastal Flash-m\u00e4lu. T\u00f6\u00f6lauainete l\u00e4htekood on kirjutatud keeles C ja see on jagatud BSD litsentsi alusel.    <\/p>\n<p>T\u00f6\u00f6riistakomplekt sisaldab komplekti Linuxi tuuma patch'e, plokkdraiverit SEF (Software Enabled Flash) seadmete jaoks, k\u00e4surea haldusteenuseid, para-virtuaalset SEF-draiverit QEMU jaoks, API-ga arendusteegi rakenduste arendamiseks, patch'e nvme-cli ja FIO jaoks, mis lisavad SEF-i toe. SDK h\u00f5lmab ka FTL (Flash Translation Layer) programmitasandi viidete elluviimist, mis tagab k\u00e4su t\u00f5lkimise plokkseadmete s\u00fcgavale FLASH-m\u00e4lukiibile, j\u00e4\u00e4tme kogumise ja andmete paigutamise m\u00e4lu rakkudes. FTL toetab paindlikku andmete paigutust (FDP \u2014 Flexible Data Placement), tsoneerimist (ZNS \u2014 Zoned Namespace) ja NVMe spetsifikatsiooni.        <\/p>\n<p>Tavaliseks Flash-m\u00e4luks on v\u00e4listes s\u00fcsteemides salvestusseade must kast, mille osa m\u00e4lust on reserveeritud teenindusoperatsioonide jaoks. Tulemuslikkus ei ole alati \u00fchtlane ning v\u00f5ivad esineda ettearvamatud viivitused, mis on p\u00f5hjustatud kontrolleri sisemisest aktiivsusest, n\u00e4iteks andmete kogumisel. Erinevalt traditsioonilistest Flash-m\u00e4ludest, kus andmete jaotamine, rikke blokeerimine ja kogumine toimub kontrolleri tarkvara poolt, v\u00f5imaldavad SEF-i toe saanud salvestusseadmed viia madalama taseme Flash-m\u00e4chi t\u00f6\u00f6tluse loogika tarkvara ja operatsioonis\u00fcsteemi tasandile.     <\/p>\n<p>SEF v\u00f5imaldab otse hallata andmete f\u00fc\u00fcsilist asukohta, muuta koormuse jaotamise algoritme, hallata prioriteete ja QoS-i, vabaneda lisakihist plokkide t\u00f5lkimisel, kasutada kogu saadaval m\u00e4lu, saavutada ettearvatavat t\u00f6\u00f6d salvestusseadmest ning jagada salvestusseade virtuaalseteks seadmeteks, mis on isoleeritud sisendi\/v\u00e4ljundi tasemel ja millel on erinevad t\u00f6\u00f6tlemise prioriteedid. SEF-i l\u00e4henemine v\u00f5imaldab v\u00e4hendada \u00fclepea ja suurendada salvestusseadmestiku efektiivsust, kohandudes praeguste vajadustega, sh prahi kogumise, m\u00e4lu reserveerimise ja plokkide jaotamise puhul, et v\u00e4hendada kulumist.     <\/p>\n<p>N\u00e4iteks v\u00f5imaldab SEF normaliseerida j\u00f5udlust, kui kasutatakse erinevatel aegadel ostetud salvestusseadmete koosseisu, millel on erinevad omadused. Salvestusseadmete puhul, mida kasutatakse peamiselt ainult lugemiseks, saab SEF-i t\u00f5ttu rakendada lihtsamaid plokkide jaotamise algoritme ja v\u00e4hendada teeninduslikuks otstarbeks reserveeritud m\u00e4lu.<br \/>\n<br \/>Allikas: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=60278\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\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 [&hellip;]<\/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<!-- All in One SEO 5.0.1.1 - aioseo.com -->\n\t<meta name=\"description\" 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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 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