{"id":31311,"date":"2019-10-31T21:40:37","date_gmt":"2019-10-31T18:40:37","guid":{"rendered":"https:\/\/prohoster.info\/blog\/osobennosti-raboty-auto-tiering-v-shd-qsan-xcubesan\/"},"modified":"2019-10-31T21:40:37","modified_gmt":"2019-10-31T18:40:37","slug":"osobennosti-raboty-auto-tiering-v-shd-qsan-xcubesan","status":"publish","type":"post","link":"https:\/\/prohoster.info\/cs\/blog\/administrirovanie\/osobennosti-raboty-auto-tiering-v-shd-qsan-xcubesan","title":{"rendered":"Vlastnosti fungov\u00e1n\u00ed Auto Tiering v S\u0160D Qsan XCubeSAN","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Pokra\u010duj\u00edc\u00edm zkoum\u00e1n\u00edm technologi\u00ed pro zrychlen\u00ed operac\u00ed vstupu\/v\u00fdstupu v kontextu \u00falo\u017en\u00fdch syst\u00e9m\u016f, kter\u00e9 byly zah\u00e1jeny v <noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/skilline\/blog\/432366\/\">p\u0159edchoz\u00ed \u010dl\u00e1nku<\/a><\/noindex>, nelze nezm\u00ednit velmi popul\u00e1rn\u00ed mo\u017enost, jako je tiering (Auto Tiering). I kdy\u017e je ideologie fungov\u00e1n\u00ed t\u00e9to funkce velmi podobn\u00e1 u r\u016fzn\u00fdch v\u00fdrobc\u016f \u00falo\u017en\u00fdch syst\u00e9m\u016f, pod\u00edv\u00e1me se na rysy implementace tieringu na p\u0159\u00edkladu <noindex><a rel=\"nofollow\" href=\"http:\/\/www.qsan.su\/\">\u00falo\u017en\u00e9ho syst\u00e9mu Qsan<\/a><\/noindex>.<\/p>\n<p><\/p>\n<p><img decoding=\"async\" alt=\"Vlastnosti fungov\u00e1n\u00ed Auto Tiering v S\u0160D Qsan XCubeSAN\" src=\"\/wp-content\/uploads\/2019\/04\/7cca3662cd6a469c75e1a9809dfab98b.jpg\" style=\"display:block;margin: 0 auto;\" \/><noindex><a rel=\"nofollow\" name=\"habracut\"><\/a><\/noindex><\/p>\n<p>P\u0159es rozmanitost dat ulo\u017een\u00fdch na \u00falo\u017en\u00e9m syst\u00e9mu lze tato data rozd\u011blit do n\u011bkolika skupin podle jejich popt\u00e1vky (frekvence pou\u017e\u00edv\u00e1n\u00ed). Pro nejpopul\u00e1rn\u011bj\u0161\u00ed (\u201ehork\u00e1\u201c) data je nesm\u00edrn\u011b d\u016fle\u017eit\u00e9 uspo\u0159\u00e1dat maxim\u00e1ln\u011b rychl\u00fd p\u0159\u00edstup, zat\u00edmco zpracov\u00e1n\u00ed m\u00e9n\u011b \u017e\u00e1dan\u00fdch (\u201estuden\u00fdch\u201c) dat lze prov\u00e1d\u011bt s ni\u017e\u0161\u00ed prioritou. <\/p>\n<p><\/p>\n<p>K organizaci takov\u00e9ho sch\u00e9matu se pr\u00e1v\u011b pou\u017e\u00edv\u00e1 funkce tieringu. Sada dat v tomto p\u0159\u00edpad\u011b nen\u00ed slo\u017eena pouze z homogenn\u00edch disk\u016f, ale z n\u011bkolika skupin \u00falo\u017en\u00fdch za\u0159\u00edzen\u00ed, kter\u00e9 vytv\u00e1\u0159ej\u00ed r\u016fzn\u00e9 \u00farovn\u011b (tier) skladov\u00e1n\u00ed. Pomoc\u00ed speci\u00e1ln\u00edho algoritmu se data automaticky p\u0159esouvaj\u00ed mezi \u00farovn\u011bmi s c\u00edlem zajistit maxim\u00e1ln\u00ed kone\u010dn\u00fd v\u00fdkon.<\/p>\n<p>\n<img decoding=\"async\" alt=\"Vlastnosti fungov\u00e1n\u00ed Auto Tiering v S\u0160D Qsan XCubeSAN\" src=\"\/wp-content\/uploads\/2019\/04\/5e8371056b0d1f053d646c8c2ae87460.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/p>\n<p>\u00dalo\u017ei\u0161t\u011b dat <noindex><a rel=\"nofollow\" href=\"http:\/\/www.qsan.su\/\">Qsan<\/a><\/noindex> podporuj\u00ed a\u017e t\u0159i \u00farovn\u011b skl\u00e1d\u00e1n\u00ed:<\/p>\n<p><\/p>\n<ul>\n<li>Tier 1: SSD, maxim\u00e1ln\u00ed v\u00fdkon<\/li>\n<li>Tier 2: HDD SAS 10K\/15K, vysok\u00fd v\u00fdkon<\/li>\n<li>Tier 3: HDD NL-SAS 7.2K, maxim\u00e1ln\u00ed kapacita<\/li>\n<\/ul>\n<p>Auto Tiering pool m\u016f\u017ee obsahovat jak v\u0161echny t\u0159i \u00farovn\u011b, tak pouze dv\u011b v r\u016fzn\u00fdch kombinac\u00edch. Uvnit\u0159 ka\u017ed\u00e9ho Tieru jsou disky spojeny do obvykl\u00fdch RAID skupin. Pro maxim\u00e1ln\u00ed flexibilitu m\u016f\u017ee b\u00fdt \u00farove\u0148 RAID v ka\u017ed\u00e9m Tieru jin\u00e1. Tedy nap\u0159\u00edklad, nic nebr\u00e1n\u00ed organizaci struktury jako 4x SSD RAID10 + 6x HDD 10K RAID5 + 12 HDD 7.2K RAID6.<\/p>\n<p><\/p>\n<p>Po vytvo\u0159en\u00ed objem\u016f (virtu\u00e1ln\u00edch disk\u016f) na <noindex><a rel=\"nofollow\" href=\"http:\/\/www.qsan.su\/soft\/san-os-4.0\/auto-tiering-(qtiering).html\">Auto Tiering <\/a><\/noindex>poolu za\u010d\u00edn\u00e1 na n\u011bm pozad\u00ed sb\u011br statistik o v\u0161ech operac\u00edch vstupu\/v\u00fdstupu. K tomu je prostor \u201erozd\u011blen\u201c na bloky o velikosti 1GB (takzvan\u00e9 sub LUN). P\u0159i ka\u017ed\u00e9m p\u0159\u00edstupu k takov\u00e9mu bloku mu je p\u0159i\u0159azen koeficient 1. Pot\u00e9, s ub\u00edhaj\u00edc\u00edm \u010dasem, se tento koeficient sni\u017euje. Po 24 hodin\u00e1ch, p\u0159i absenci po\u017eadavk\u016f na vstup\/v\u00fdstup k tomuto bloku, ji\u017e bude rovnat 0.5 a bude pokra\u010dovat v poklesu ka\u017edou n\u00e1slednou hodinu.<\/p>\n<p><\/p>\n<p>V ur\u010dit\u00e9m \u010dase (ve v\u00fdchoz\u00edm nastaven\u00ed ka\u017ed\u00fd den o p\u016flnoci) doch\u00e1z\u00ed k hodnocen\u00ed shrom\u00e1\u017ed\u011bn\u00fdch v\u00fdsledk\u016f podle aktivity sub LUN na z\u00e1klad\u011b jejich koeficient\u016f. Na z\u00e1klad\u011b toho se rozhoduje, kter\u00e9 bloky p\u0159esunout a kter\u00fdm sm\u011brem. N\u00e1sledn\u011b pak doch\u00e1z\u00ed k relokaci dat mezi \u00farovn\u011bmi. <\/p>\n<p><\/p>\n<p><img decoding=\"async\" alt=\"Vlastnosti fungov\u00e1n\u00ed Auto Tiering v S\u0160D Qsan XCubeSAN\" src=\"\/wp-content\/uploads\/2019\/04\/f42e1bc4f9e790e0ddc7476c156d356f.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/p>\n<p>V \u00falo\u017ei\u0161ti Qsan je skv\u011ble realizov\u00e1na spr\u00e1va procesu tieringu pomoc\u00ed mnoha parametr\u016f, co\u017e umo\u017e\u0148uje velmi flexibiln\u011b nastavit v\u00fdsledn\u00fd v\u00fdkon pole.<\/p>\n<p><\/p>\n<p>Pro ur\u010den\u00ed po\u010d\u00e1te\u010dn\u00ed polohy dat a preferovan\u00e9ho sm\u011bru jejich p\u0159esunu se pou\u017e\u00edvaj\u00ed politiky, kter\u00e9 jsou nastavov\u00e1ny jednotliv\u011b pro ka\u017ed\u00fd svazek:<\/p>\n<p><\/p>\n<ul>\n<li><b>Auto Tiering<\/b> \u2013 v\u00fdchoz\u00ed politika, po\u010d\u00e1te\u010dn\u00ed um\u00edst\u011bn\u00ed a sm\u011br p\u0159esun\u016f jsou ur\u010dov\u00e1ny automaticky, tj. \"\u017eiv\u00e1\" data se sna\u017e\u00ed dostat na nejvy\u0161\u0161\u00ed \u00farove\u0148, zat\u00edmco \"chladn\u00e1\" data se posouvaj\u00ed dol\u016f. Po\u010d\u00e1te\u010dn\u00ed um\u00edst\u011bn\u00ed se vyb\u00edr\u00e1 na z\u00e1klad\u011b dostupn\u00e9ho m\u00edsta na ka\u017ed\u00e9 z \u00farovn\u00ed. Je v\u0161ak t\u0159eba m\u00edt na pam\u011bti, \u017ee syst\u00e9m se prim\u00e1rn\u011b sna\u017e\u00ed maxim\u00e1ln\u011b vyu\u017e\u00edvat nejrychlej\u0161\u00ed \u00falo\u017ei\u0161t\u011b. Proto, pokud je k dispozici voln\u00e9 m\u00edsto, budou data um\u00edst\u011bna na vy\u0161\u0161\u00edch \u00farovn\u00edch. Tato politika je vhodn\u00e1 pro v\u011bt\u0161inu sc\u00e9n\u00e1\u0159\u016f, kdy nen\u00ed mo\u017en\u00e9 p\u0159edem p\u0159edpov\u011bd\u011bt popt\u00e1vku po datech.<\/li>\n<li><b>Za\u010d\u00edt s vysokou \u00farovn\u00ed a pot\u00e9 prov\u00e9st Auto Tiering<\/b> \u2013 od p\u0159edchoz\u00ed se li\u0161\u00ed pouze po\u010d\u00e1te\u010dn\u00edm um\u00edst\u011bn\u00edm dat (na nejrychlej\u0161\u00ed \u00farovni)<\/li>\n<li><b>Maxim\u00e1ln\u011b vysok\u00e1 \u00farove\u0148<\/b> \u2013 data se v\u017edy sna\u017e\u00ed obsadit nejrychlej\u0161\u00ed \u00farove\u0148. Pokud jsou b\u011bhem provozu posunuta dol\u016f, p\u0159i prvn\u00ed p\u0159\u00edle\u017eitosti se p\u0159esou\u0159\u00ed zp\u011bt. Tato politika je vhodn\u00e1 pro data, ke kter\u00fdm je pot\u0159eba maxim\u00e1ln\u011b rychl\u00fd p\u0159\u00edstup.<\/li>\n<li><b>Minim\u00e1ln\u00ed \u00farove\u0148<\/b> \u2013 data se v\u017edy sna\u017e\u00ed obsadit nejni\u017e\u0161\u00ed \u00farove\u0148. Tato politika je skv\u011bl\u00e1 pro z\u0159\u00eddka pou\u017e\u00edvan\u00e1 data (nap\u0159. archivy).<\/li>\n<li><b>Bez p\u0159esunu<\/b> \u2013 syst\u00e9m automaticky ur\u010duje po\u010d\u00e1te\u010dn\u00ed polohu dat a neprov\u00e1d\u00ed jejich p\u0159esun. Statistiky se v\u0161ak nad\u00e1le shroma\u017e\u010fuj\u00ed pro p\u0159\u00edpad, \u017ee by pozd\u011bji bylo pot\u0159eba jejich relokace.<\/li>\n<\/ul>\n<p><\/p>\n<p>Je t\u0159eba poznamenat, \u017ee i kdy\u017e se politiky ur\u010duj\u00ed p\u0159i vytv\u00e1\u0159en\u00ed ka\u017ed\u00e9ho svazku, mohou se opakovan\u011b m\u011bnit \"za chodu\" b\u011bhem \u017eivotn\u00edho cyklu syst\u00e9mu.<\/p>\n<p><\/p>\n<p>Krom\u011b politik pro mechanismus tieringu lze nastavit tak\u00e9 frekvenci a tempo p\u0159esunu dat mezi \u00farovn\u011bmi. Lze ur\u010dit konkr\u00e9tn\u00ed \u010das p\u0159esunu: denn\u011b nebo v ur\u010dit\u00e9 dny v t\u00fddnu, a tak\u00e9 zkr\u00e1tit interval sb\u011bru statistik na n\u011bkolik hodin (minim\u00e1ln\u00ed frekvence \u2013 2 hodiny). Pokud je t\u0159eba omezit \u010das prov\u00e1d\u011bn\u00ed operace p\u0159esunu dat, lze nastavit \u010dasov\u00e9 r\u00e1mce (okno pro p\u0159esun). Krom\u011b toho se tak\u00e9 uv\u00e1d\u00ed rychlost relokace \u2013 3 re\u017eimy: rychl\u00fd, st\u0159edn\u00ed, pomal\u00fd.<\/p>\n<p><\/p>\n<p><img decoding=\"async\" alt=\"Vlastnosti fungov\u00e1n\u00ed Auto Tiering v S\u0160D Qsan XCubeSAN\" src=\"\/wp-content\/uploads\/2019\/04\/3745e47ccf8b797e50005b767346dacf.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/p>\n<p>V p\u0159\u00edpad\u011b pot\u0159eby okam\u017eit\u00e9 relokace dat je mo\u017en\u00e9 ji prov\u00e9st v ru\u010dn\u00edm re\u017eimu kdykoli na p\u0159\u00edkaz administr\u00e1tora.<\/p>\n<p><\/p>\n<p>Je jasn\u00e9, \u017ee \u010d\u00edm \u010dast\u011bji a rychleji bude p\u0159esun dat mezi \u00farovn\u011bmi prov\u00e1d\u011bn, t\u00edm flexibiln\u011bji se \u00falo\u017ei\u0161t\u011b p\u0159izp\u016fsob\u00ed aktu\u00e1ln\u00edm podm\u00ednk\u00e1m provozu. Je v\u0161ak tak\u00e9 d\u016fle\u017eit\u00e9 si uv\u011bdomit, \u017ee p\u0159esun znamen\u00e1 dodate\u010dnou z\u00e1t\u011b\u017e (zejm\u00e9na pro disky), a proto nen\u00ed vhodn\u00e9 \u201enah\u00e1n\u011bt\u201c data bez v\u00e1\u017en\u00e9 pot\u0159eby. L\u00e9pe je napl\u00e1novat p\u0159esun na dob\u011b minim\u00e1ln\u00edho zat\u00ed\u017een\u00ed. Pokud v\u0161ak provoz \u00falo\u017ei\u0161t\u011b st\u00e1l\u00e9 vy\u017eaduje vysok\u00fd v\u00fdkon v re\u017eimu 24\/7, je dobr\u00e9 sn\u00ed\u017eit tempo relokace na minimum.<\/p>\n<p><\/p>\n<p>Oby\u010dejn\u011b roz\u0161\u00ed\u0159en\u00e9 mo\u017enosti configurace tieringu bez pochyb pot\u011b\u0161\u00ed pokro\u010dil\u00e9 u\u017eivatele. Pro ty, kte\u0159\u00ed se s takovou technologi\u00ed setk\u00e1vaj\u00ed poprv\u00e9, v\u0161ak nen\u00ed t\u0159eba se b\u00e1t. Je mo\u017en\u00e9 d\u016fv\u011b\u0159ovat v\u00fdchoz\u00edm nastaven\u00edm (politika Auto Tiering, p\u0159esun maxim\u00e1ln\u00ed rychlost\u00ed jednou za noc) a s rostouc\u00edmi statistikami upravovat jednotliv\u00e9 parametry k dosa\u017een\u00ed po\u017eadovan\u00fdch v\u00fdsledk\u016f.<\/p>\n<p><\/p>\n<p>P\u0159i srovn\u00e1n\u00ed tieringu s tak popul\u00e1rn\u00ed technologi\u00ed zvy\u0161ov\u00e1n\u00ed v\u00fdkonu, jako je <noindex><a rel=\"nofollow\" href=\"http:\/\/www.qsan.su\/soft\/san-os-4.0\/ssd-keshirovanie-(qcache-2.0).html\">SSD caching<\/a><\/noindex>, je t\u0159eba m\u00edt na pam\u011bti rozd\u00edln\u00e9 principy fungov\u00e1n\u00ed jejich algoritm\u016f. <\/p>\n<p><\/p>\n<p>SSD caching<br \/>\nAuto Tiering<\/p>\n<p><b>Rychlost n\u00e1stupu efektu<\/b><br \/>\nT\u00e9m\u011b\u0159 okam\u017eit\u011b. Viditeln\u00fd efekt v\u0161ak nast\u00e1v\u00e1 a\u017e po \"proh\u0159\u00e1t\u00ed\" cache (minuty-hodiny)<br \/>\nPo shrom\u00e1\u017ed\u011bn\u00ed statistik (od 2 hodin, ide\u00e1ln\u011b \u2013 24 hodin) plus \u010das na p\u0159esun dat<\/p>\n<p><b>D\u00e9lka efektu<\/b><br \/>\nDokud budou data vytla\u010dena novou porc\u00ed (minuty-hodiny)<br \/>\nPokud je popt\u00e1vka po datech aktu\u00e1ln\u00ed (24 hodin a v\u00edce)<\/p>\n<p><b>Indikace pro pou\u017eit\u00ed<\/b><br \/>\nOkam\u017eit\u00e9 zv\u00fd\u0161en\u00ed v\u00fdkonu na kr\u00e1tkou dobu (datab\u00e1ze, virtu\u00e1ln\u00ed prost\u0159ed\u00ed)<br \/>\nDlouhodob\u00e9 zv\u00fd\u0161en\u00ed v\u00fdkonu (soubory, webov\u00e9, po\u0161tovn\u00ed servery)<\/p>\n<p><\/p>\n<p>Jednou z v\u00fdhod tieringu je jeho vyu\u017eit\u00ed nejen pro sc\u00e9n\u00e1\u0159e typu \u201eSSD + HDD\u201c, ale tak\u00e9 pro \u201erychl\u00e9 HDD + pomal\u00e9 HDD\u201c nebo dokonce v\u0161echny t\u0159i \u00farovn\u011b, co\u017e je v p\u0159\u00edpad\u011b pou\u017eit\u00ed SSD cache principieln\u011b nemo\u017en\u00e9.<\/p>\n<p><\/p>\n<h2>Testov\u00e1n\u00ed<\/h2>\n<p><\/p>\n<p>Pro testov\u00e1n\u00ed \u00fa\u010dinnosti algoritm\u016f tieringu jsme provedli jednoduch\u00fd test. Byla vytvo\u0159ena skupina ze dvou \u00farovn\u00ed SSD (RAID 1) + HDD 7.2K (RAID 1), na n\u00ed\u017e byl um\u00edst\u011bn svazek s politikou \u201eminim\u00e1ln\u00ed \u00farove\u0148\u201c. Tj. data by m\u011bla b\u00fdt v\u017edy um\u00edst\u011bna na pomal\u00fdch disc\u00edch.<\/p>\n<p><\/p>\n<p><img decoding=\"async\" alt=\"Vlastnosti fungov\u00e1n\u00ed Auto Tiering v S\u0160D Qsan XCubeSAN\" src=\"\/wp-content\/uploads\/2019\/04\/4e841cb01d977962dd3783959cc5d7b9.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/p>\n<p><img decoding=\"async\" alt=\"Vlastnosti fungov\u00e1n\u00ed Auto Tiering v S\u0160D Qsan XCubeSAN\" src=\"\/wp-content\/uploads\/2019\/04\/f5fb97420eefbd2f94ea7836aada31ba.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/p>\n<p><i>\u0158\u00eddic\u00ed rozhran\u00ed p\u0159ehledn\u011b ukazuje um\u00edst\u011bn\u00ed dat mezi \u00farovn\u011bmi.<\/i><\/p>\n<p><\/p>\n<p>Po napln\u011bn\u00ed svazku daty jsme zm\u011bnili politiku um\u00edst\u011bn\u00ed na Auto Tiering a spustili test IOmeter. <\/p>\n<p><\/p>\n<p><img decoding=\"async\" alt=\"Vlastnosti fungov\u00e1n\u00ed Auto Tiering v S\u0160D Qsan XCubeSAN\" src=\"\/wp-content\/uploads\/2019\/04\/50eed4f936c5219fd0858f282160408d.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/p>\n<p>Po n\u011bkolika hodin\u00e1ch testov\u00e1n\u00ed, kdy syst\u00e9m shrom\u00e1\u017edil statistiky, za\u010dal proces relokace.<\/p>\n<p><\/p>\n<p><img decoding=\"async\" alt=\"Vlastnosti fungov\u00e1n\u00ed Auto Tiering v S\u0160D Qsan XCubeSAN\" src=\"\/wp-content\/uploads\/2019\/04\/51b471973db67e4bd50ea31052046b71.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/p>\n<p>Po dokon\u010den\u00ed p\u0159esunu dat se n\u00e1\u0161 testovac\u00ed svazek zcela \u201ep\u0159esunul\u201c na vrcholovou \u00farove\u0148 (SSD).<\/p>\n<p><\/p>\n<p><img decoding=\"async\" alt=\"Vlastnosti fungov\u00e1n\u00ed Auto Tiering v S\u0160D Qsan XCubeSAN\" src=\"\/wp-content\/uploads\/2019\/04\/397f634061669cb32361d42e850bfff2.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/p>\n<p><img decoding=\"async\" alt=\"Vlastnosti fungov\u00e1n\u00ed Auto Tiering v S\u0160D Qsan XCubeSAN\" src=\"\/wp-content\/uploads\/2019\/04\/822862fc05d313742772a6e696dc77b9.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/p>\n<h3>Verdikt<\/h3>\n<p><\/p>\n<blockquote><p>Auto Tiering \u2013 skv\u011bl\u00e1 technologie, kter\u00e1 umo\u017e\u0148uje zv\u00fd\u0161it v\u00fdkon syst\u00e9mu \u00falo\u017ei\u0161t\u011b s minim\u00e1ln\u00edm materi\u00e1ln\u00edm a \u010dasov\u00fdm \u00fasil\u00edm d\u00edky intenzivn\u011bj\u0161\u00edmu vyu\u017eit\u00ed rychl\u00fdch za\u0159\u00edzen\u00ed. Pokud jde o <noindex><a rel=\"nofollow\" href=\"http:\/\/www.qsan.su\/\">Qsan <\/a><\/noindex>jedin\u00e9 investice \u2013 to je licence, kter\u00e1 se kupuje jednou a nav\u017edy bez omezen\u00ed na objem\/po\u010det disk\u016f\/pol\u00edc\/atd. Tato funkce je vybavena velmi bohat\u00fdmi nastaven\u00edmi, kter\u00e9 dok\u00e1\u017eou uspokojit prakticky jak\u00e9koli pot\u0159eby podnik\u00e1n\u00ed. A vizualizace proces\u016f v rozhran\u00ed umo\u017en\u00ed efektivn\u011b spravovat za\u0159\u00edzen\u00ed.\n<\/p><\/blockquote>\n<p>Zdroj: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/skilline\/blog\/447520\/\">habr.com<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041f\u0440\u043e\u0434\u043e\u043b\u0436\u0430\u044f \u0440\u0430\u0441\u0441\u043c\u0430\u0442\u0440\u0438\u0432\u0430\u0442\u044c \u0442\u0435\u0445\u043d\u043e\u043b\u043e\u0433\u0438\u0438 \u0443\u0441\u043a\u043e\u0440\u0435\u043d\u0438\u044f \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u0439 \u0432\u0432\u043e\u0434\u0430\/\u0432\u044b\u0432\u043e\u0434\u0430 \u0432 \u043f\u0440\u0438\u043c\u0435\u043d\u0435\u043d\u0438\u0438 \u043a \u0421\u0425\u0414, \u043d\u0430\u0447\u0430\u0442\u044b\u0435 \u0432 \u043f\u0440\u0435\u0434\u044b\u0434\u0443\u0449\u0435\u0439 \u0441\u0442\u0430\u0442\u044c\u0435, \u043d\u0435\u043b\u044c\u0437\u044f \u043d\u0435 \u043e\u0441\u0442\u0430\u043d\u043e\u0432\u0438\u0442\u044c\u0441\u044f \u043d\u0430 \u0442\u0430\u043a\u043e\u0439 \u0432\u0435\u0441\u044c\u043c\u0430 \u043f\u043e\u043f\u0443\u043b\u044f\u0440\u043d\u043e\u0439 \u043e\u043f\u0446\u0438\u0438, \u043a\u0430\u043a \u0442\u0438\u0440\u0438\u043d\u0433 (Auto Tiering). \u0425\u043e\u0442\u044f \u0438\u0434\u0435\u043e\u043b\u043e\u0433\u0438\u044f \u0440\u0430\u0431\u043e\u0442\u044b \u0434\u0430\u043d\u043d\u043e\u0439 \u0444\u0443\u043d\u043a\u0446\u0438\u0438 \u0432\u0435\u0441\u044c\u043c\u0430 \u0431\u043b\u0438\u0437\u043a\u0430 \u0443 \u0440\u0430\u0437\u043b\u0438\u0447\u043d\u044b\u0445 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u0435\u0439 \u0441\u0438\u0441\u0442\u0435\u043c \u0445\u0440\u0430\u043d\u0435\u043d\u0438\u044f, \u043c\u044b \u0440\u0430\u0441\u0441\u043c\u043e\u0442\u0440\u0438\u043c \u043e\u0441\u043e\u0431\u0435\u043d\u043d\u043e\u0441\u0442\u0438 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438 \u0442\u0438\u0440\u0438\u043d\u0433\u0430 \u043d\u0430 \u043f\u0440\u0438\u043c\u0435\u0440\u0435 \u0421\u0425\u0414 Qsan. \u041d\u0435\u0441\u043c\u043e\u0442\u0440\u044f \u043d\u0430 \u043c\u043d\u043e\u0433\u043e\u043e\u0431\u0440\u0430\u0437\u0438\u0435 \u0434\u0430\u043d\u043d\u044b\u0445, \u0445\u0440\u0430\u043d\u0438\u043c\u044b\u0445 \u043d\u0430 \u0421\u0425\u0414, \u044d\u0442\u0438 [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":23277,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[688],"tags":[],"class_list":["post-31311","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-administrirovanie"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One 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