{"id":35740,"date":"2019-10-31T22:06:05","date_gmt":"2019-10-31T19:06:05","guid":{"rendered":"https:\/\/prohoster.info\/blog\/intel-optane-dc-persistent-memory-god-spustya\/"},"modified":"2019-10-31T22:06:05","modified_gmt":"2019-10-31T19:06:05","slug":"intel-optane-dc-persistent-memory-god-spustya","status":"publish","type":"post","link":"https:\/\/prohoster.info\/it\/blog\/administrirovanie\/intel-optane-dc-persistent-memory-god-spustya","title":{"rendered":"Intel Optane DC Persistent Memory, un anno dopo","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p><img decoding=\"async\" alt=\"Intel Optane DC Persistent Memory, un anno dopo\" src=\"\/wp-content\/uploads\/2019\/06\/60924137cc075ec5b3e0b87089659317.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\nLa scorsa estate abbiamo <noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/intel\/blog\/413183\/\">annunciato nel blog<\/a><\/noindex> Optane DC Persistent Memory \u2014 memoria Optane basata su moduli <noindex><a rel=\"nofollow\" href=\"https:\/\/ru.wikipedia.org\/wiki\/3D_XPoint\">3D XPoint<\/a><\/noindex> nel formato DIMM. Come gi\u00e0 dichiarato, le forniture dei moduli Optane sono iniziate nel secondo trimestre del 2019, e fino a quel momento si era accumulata un'adeguata quantit\u00e0 di informazioni, che mancavano all'epoca dell'annuncio. Quindi, di seguito \u2014 le specifiche tecniche e i modelli di utilizzo <noindex><a rel=\"nofollow\" href=\"https:\/\/www.intel.com\/content\/www\/us\/en\/products\/memory-storage\/optane-dc-persistent-memory.html\">Optane DC Persistent Memory<\/a><\/noindex>, oltre a varie infografiche.<br \/>\n<noindex><a rel=\"nofollow\" name=\"habracut\"><\/a><\/noindex><br \/>\nCome gi\u00e0 menzionato, i moduli Optane DC Persistent Memory (Optane DC PM) sono installati negli slot DIMM DDR4 standard, ma per utilizzarli \u00e8 necessaria la compatibilit\u00e0 con il controller della memoria, quindi questo tipo di memoria pu\u00f2 attualmente essere utilizzato solo con i processori Intel Xeon Scalable Gold o Platinum di seconda generazione. Si pu\u00f2 installare un singolo modulo Optane DC PM per canale di memoria, quindi fino a 6 moduli per socket, per un totale di 3 TB o 24 Tb su un server a 8 socket.<\/p>\n<p><img decoding=\"async\" alt=\"Intel Optane DC Persistent Memory, un anno dopo\" src=\"\/wp-content\/uploads\/2019\/06\/5ab2c4ec05b77d285abeb177da82cc6b.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\nOptane DC PM \u00e8 disponibile in moduli di 3 dimensioni: 128, 256 e 512 Gb \u2014 molto pi\u00f9 grandi rispetto ai moduli DDR DIMM attualmente disponibili. Esistono due modi principali per utilizzarla e interagire con la memoria tradizionale.<\/p>\n<ul>\n<li><b>Modalit\u00e0 di memoria<\/b> \u2014 non richiede alcuna modifica delle applicazioni. In questa modalit\u00e0, Optane DC PM viene utilizzata come memoria principale indirizzabile, mentre la quantit\u00e0 esistente di DRAM tradizionali funge da cache per Optane. La modalit\u00e0 di memoria consente di fornire alle applicazioni un'importante quantit\u00e0 di RAM a un costo nettamente inferiore, il che pu\u00f2 essere cruciale per il posizionamento di macchine virtuali, grandi database e cos\u00ec via. Va notato che in questa modalit\u00e0, Optane DC Persistent Memory \u00e8 volatile, poich\u00e9 i dati in essa sono crittografati con una chiave che viene persa al riavvio.<\/li>\n<li><b>Modalit\u00e0 di accesso diretto<\/b> \u2014 le applicazioni e il software possono accedere direttamente a Optane DC PM, semplificando la catena delle chiamate. Inoltre, in questa modalit\u00e0 \u00e8 possibile utilizzare API esistenti per i mezzi di archiviazione, permettendo di trattare la memoria come un SSD e, in particolare, di avviarsi da essa. Il sistema vede Optane DC PM e DRAM come due pool di memoria indipendenti. Il tuo vantaggio \u00e8 uno storage ampio, non volatile, veloce e affidabile per applicazioni e esigenze di sistema che richiedono scambi di dati. <\/li>\n<\/ul>\n<p>\n\u00c8 possibile anche una soluzione intermedia: parte delle schede Optane DC PM viene utilizzata in modalit\u00e0 memoria e parte in modalit\u00e0 accesso diretto. Nella diapositiva successiva \u00e8 mostrato il vantaggio dell'utilizzo della memoria persistente Intel Optane DC per l'hosting di macchine virtuali.<\/p>\n<p><img decoding=\"async\" alt=\"Intel Optane DC Persistent Memory, un anno dopo\" src=\"\/wp-content\/uploads\/2019\/06\/ce5bbac059568b89df753f8c07318e67.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\nOra presenteremo le specifiche tecniche dei moduli di memoria.<\/p>\n<p>Capacit\u00e0<br \/>\n 128 GiB<br \/>\n 256 GiB<br \/>\n 512 GiB<\/p>\n<p>Modello<br \/>\n NMA1XXD128GPS<br \/>\n NMA1XXD256GPS<br \/>\n NMA1XXD512GPS<\/p>\n<p>Garanzia<br \/>\n 5 anni<\/p>\n<p>AFR<br \/>\n \u2264 0,44<\/p>\n<p>Durata 100% scrittura 15W 256B<br \/>\n 292 PBW<br \/>\n 363 PBW<br \/>\n 300 PBW<\/p>\n<p>Durata 100% scrittura 15W 64B<br \/>\n 91 PBW<br \/>\n 91 PBW<br \/>\n 75 PBW<\/p>\n<p>Velocit\u00e0 100% lettura 15W 256B<br \/>\n 6,8 GB\/s<br \/>\n 6,8 GB\/s<br \/>\n 5,3 GB\/s<\/p>\n<p>Velocit\u00e0 100% scrittura 15W 256B<br \/>\n 1,85 GB\/s<br \/>\n 2,3 GB\/s<br \/>\n 1,89 GB\/s<\/p>\n<p>Velocit\u00e0 100% lettura 15W 64B<br \/>\n 1,7 GB\/s<br \/>\n 1,75 GB\/s<br \/>\n 1,4 GB\/s<\/p>\n<p>Velocit\u00e0 100% scrittura 15W 64B<br \/>\n 0,45 GB\/s<br \/>\n 0,58 GB\/s<br \/>\n 0,47 GB\/s<\/p>\n<p>Frequenza DDR<br \/>\n 2666, 2400, 2133, 1866 MT\/s<\/p>\n<p>Max. TDP<br \/>\n 15W<br \/>\n 18W<\/p>\n<p>Infine, parliamo del prezzo. Non sono ancora stati pubblicati i prezzi consigliati ufficiali di Intel, tuttavia alcuni partner commerciali hanno gi\u00e0 iniziato a raccogliere preordini, a $850 \u2013 900 per la scheda da 128 GiB e $2,700 \u2013 $2,900 per quella da 256 GiB. I 512 GiB non sono ancora disponibili, presumibilmente appariranno dopo le altre. Pertanto, il costo unitario parte da $7 per GiB, che \u00e8 paragonabile al prezzo di un gigabyte di memoria server RDIMM.<br \/>\n<br \/>Fonte: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/intel\/blog\/457540\/\">habr.com<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041b\u0435\u0442\u043e\u043c \u043f\u0440\u043e\u0448\u043b\u043e\u0433\u043e \u0433\u043e\u0434\u0430 \u043c\u044b \u0430\u043d\u043e\u043d\u0441\u0438\u0440\u043e\u0432\u0430\u043b\u0438 \u0432 \u0431\u043b\u043e\u0433\u0435 Optane DC Persistent Memory \u2014 \u043f\u0430\u043c\u044f\u0442\u044c Optane \u043d\u0430 \u0431\u0430\u0437\u0435 \u043c\u043e\u0434\u0443\u043b\u0435\u0439 3D XPoint \u0432 \u0444\u043e\u0440\u043c\u0430\u0442\u0435 DIMM. \u041a\u0430\u043a \u0438 \u0431\u044b\u043b\u043e \u0442\u043e\u0433\u0434\u0430 \u0437\u0430\u044f\u0432\u043b\u0435\u043d\u043e, \u043f\u043e\u0441\u0442\u0430\u0432\u043a\u0438 \u043f\u043b\u0430\u043d\u043e\u043a Optane \u043d\u0430\u0447\u0430\u043b\u0438\u0441\u044c \u0432\u043e \u0432\u0442\u043e\u0440\u043e\u043c \u043a\u0432\u0430\u0440\u0442\u0430\u043b\u0435 2019 \u0433\u043e\u0434\u0430, \u043a \u044d\u0442\u043e\u043c\u0443 \u043c\u043e\u043c\u0435\u043d\u0442\u0443 \u043e \u043d\u0438\u0445 \u043d\u0430\u043a\u043e\u043f\u0438\u043b\u043e\u0441\u044c \u0434\u043e\u0441\u0442\u0430\u0442\u043e\u0447\u043d\u043e \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u0438, \u043a\u043e\u0442\u043e\u0440\u043e\u0439 \u0442\u0430\u043a \u043d\u0435 \u0445\u0432\u0430\u0442\u0430\u043b\u043e \u0442\u043e\u0433\u0434\u0430, \u0432\u043e \u0432\u0440\u0435\u043c\u044f \u0430\u043d\u043e\u043d\u0441\u0430. \u0418\u0442\u0430\u043a, \u043f\u043e\u0434 \u043a\u0430\u0442\u043e\u043c [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":26777,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[688],"tags":[],"class_list":["post-35740","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-administrirovanie"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.1.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041b\u0435\u0442\u043e\u043c \u043f\u0440\u043e\u0448\u043b\u043e\u0433\u043e \u0433\u043e\u0434\u0430 \u043c\u044b\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"Yuri Gagarin\"\/>\n\t<link rel=\"canonical\" href=\"https:\/\/prohoster.info\/it\/blog\/administrirovanie\/intel-optane-dc-persistent-memory-god-spustya\" \/>\n\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 5.0.1.1\" 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