{"id":44826,"date":"2011-10-17T11:42:54","date_gmt":"2011-10-17T08:42:54","guid":{"rendered":"http:\/\/www.techpress.gr\/?p=44826"},"modified":"2017-01-12T18:13:42","modified_gmt":"2017-01-12T15:13:42","slug":"%cf%83%cf%85%ce%bd%ce%ad%cf%84%ce%b5%cf%85%ce%be%ce%b7-%cf%84%ce%bf%cf%85-%ce%b3%ce%b9%cf%8e%cf%81%ce%b3%ce%bf%cf%85-%ce%bc%ce%b1%cf%85%cf%81%ce%ac%ce%ba%ce%b7-%ce%b4%ce%b9%ce%b5%cf%85%ce%b8%cf%8d","status":"publish","type":"post","link":"https:\/\/www.techpress.gr\/index.php\/archives\/44826","title":{"rendered":"\u03a3\u03c5\u03bd\u03ad\u03bd\u03c4\u03b5\u03c5\u03be\u03b7 \u03c4\u03bf\u03c5 \u0394\u03b9\u03b5\u03c5\u03b8\u03cd\u03bd\u03bf\u03bd\u03c4\u03bf\u03c2 \u03a3\u03c5\u03bc\u03b2\u03bf\u03cd\u03bb\u03bf\u03c5 \u03c4\u03b7\u03c2 EMC \u03c3\u03c4\u03b7\u03bd \u0395\u03bb\u03bb\u03ac\u03b4\u03b1, \u03c4\u03b7\u03bd \u039a\u03cd\u03c0\u03c1\u03bf \u03ba\u03b1\u03b9 \u03c4\u03b7 \u039c\u03ac\u03bb\u03c4\u03b1, \u0393\u03b9\u03ce\u03c1\u03b3\u03bf\u03c5 \u039c\u03b1\u03c5\u03c1\u03ac\u03ba\u03b7"},"content":{"rendered":"<blockquote><p><strong>\u039f \u0393\u03b9\u03ce\u03c1\u03b3\u03bf\u03c2 \u039c\u03b1\u03c5\u03c1\u03ac\u03ba\u03b7\u03c2, \u0394\u03b9\u03b5\u03c5\u03b8\u03cd\u03bd\u03c9\u03bd \u03a3\u03cd\u03bc\u03b2\u03bf\u03c5\u03bb\u03bf\u03c2 \u03c4\u03b7\u03c2 EMC \u03c3\u03c4\u03b7\u03bd \u0395\u03bb\u03bb\u03ac\u03b4\u03b1, \u03c4\u03b7\u03bd \u039a\u03cd\u03c0\u03c1\u03bf \u03ba\u03b1\u03b9 \u03c4\u03b7 \u039c\u03ac\u03bb\u03c4\u03b1 \u03bc\u03b1\u03c2 \u03bc\u03b9\u03bb\u03ac\u03b5\u03b9 \u03b3\u03b9\u03b1 \u03c4\u03b7\u03bd \u03ba\u03c1\u03af\u03c3\u03b7 \u03c3\u03c4\u03b7\u03bd \u03b1\u03b3\u03bf\u03c1\u03ac \u03c4\u03b5\u03c7\u03bd\u03bf\u03bb\u03bf\u03b3\u03af\u03b1\u03c2 \u03ba\u03b1\u03b9 \u03c4\u03b9\u03c2 \u03ba\u03b9\u03bd\u03ae\u03c3\u03b5\u03b9\u03c2 \u03c4\u03b7\u03c2 EMC.<\/strong><\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"http:\/\/www.techpress.gr\/wp-content\/uploads\/2011\/10\/George-Mavrakis_portrait-100x150.jpg\" data-orig-src=\"http:\/\/www.techpress.gr\/wp-content\/uploads\/2011\/10\/George-Mavrakis_portrait-100x150.jpg\" alt=\"George Mavrakis_portrait\" title=\"George Mavrakis_portrait\" width=\"100\" height=\"150\" class=\"lazyload alignleft size-thumbnail wp-image-44827\" srcset=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%27http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%27%20width%3D%27100%27%20height%3D%27150%27%20viewBox%3D%270%200%20100%20150%27%3E%3Crect%20width%3D%27100%27%20height%3D%27150%27%20fill-opacity%3D%220%22%2F%3E%3C%2Fsvg%3E\" data-srcset=\"https:\/\/www.techpress.gr\/wp-content\/uploads\/2011\/10\/George-Mavrakis_portrait-100x150.jpg 100w, https:\/\/www.techpress.gr\/wp-content\/uploads\/2011\/10\/George-Mavrakis_portrait-200x300.jpg 200w, https:\/\/www.techpress.gr\/wp-content\/uploads\/2011\/10\/George-Mavrakis_portrait.jpg 299w\" data-sizes=\"auto\" data-orig-sizes=\"(max-width: 100px) 100vw, 100px\" \/><em><strong>1.\t\u03a0\u03b5\u03af\u03c4\u03b5 \u03bc\u03b1\u03c2 \u03b4\u03c5\u03bf \u03bb\u03cc\u03b3\u03b9\u03b1 \u03b3\u03b9\u03b1 \u03c4\u03b7\u03bd \u03ba\u03c1\u03af\u03c3\u03b7 \u03c0\u03bf\u03c5 \u03bc\u03b1\u03c3\u03c4\u03af\u03b6\u03b5\u03b9 \u03c4\u03b7\u03bd \u03b5\u03bb\u03bb\u03b7\u03bd\u03b9\u03ba\u03ae \u03b1\u03b3\u03bf\u03c1\u03ac \u03c4\u03b5\u03c7\u03bd\u03bf\u03bb\u03bf\u03b3\u03af\u03b1\u03c2. \u03a0\u03bf\u03b9\u03b1 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b7 \u03b1\u03bd\u03c4\u03af\u03b4\u03c1\u03b1\u03c3\u03b7 \u03c4\u03b7\u03c2 \u03b5\u03c4\u03b1\u03b9\u03c1\u03af\u03b1\u03c2 \u03c3\u03b1\u03c2;<\/strong><\/em><\/p>\n<p>H \u03ba\u03b1\u03c4\u03ac\u03c3\u03c4\u03b1\u03c3\u03b7 \u03c4\u03b7\u03c2 \u0395\u03bb\u03bb\u03b7\u03bd\u03b9\u03ba\u03ae\u03c2 \u03b1\u03b3\u03bf\u03c1\u03ac\u03c2 \u03b1\u03c0\u03bf\u03c4\u03b5\u03bb\u03b5\u03af \u03c3\u03af\u03b3\u03bf\u03c5\u03c1\u03b1 \u03bc\u03b9\u03b1 \u03c0\u03c1\u03cc\u03ba\u03bb\u03b7\u03c3\u03b7. \u038c\u03c7\u03b9 \u03bc\u03cc\u03bd\u03bf \u03c3\u03c4\u03bf\u03bd \u03c4\u03bf\u03bc\u03ad\u03b1 \u03c4\u03b7\u03c2 \u03c4\u03b5\u03c7\u03bd\u03bf\u03bb\u03bf\u03b3\u03af\u03b1\u03c2, \u03c0\u03bf\u03c5 \u03c6\u03c5\u03c3\u03b9\u03ba\u03ac \u03b4\u03b5\u03bd \u03b8\u03b1 \u03bc\u03c0\u03bf\u03c1\u03bf\u03cd\u03c3\u03b5 \u03bd\u03b1 \u03bc\u03b5\u03af\u03bd\u03b5\u03b9 \u03b1\u03bd\u03b5\u03c0\u03b7\u03c1\u03ad\u03b1\u03c3\u03c4\u03bf\u03c2, \u03b1\u03bb\u03bb\u03ac \u03c3\u03b5 \u03cc\u03bb\u03bf \u03c4\u03bf \u03c6\u03ac\u03c3\u03bc\u03b1 \u03c4\u03c9\u03bd \u03b5\u03c0\u03b9\u03c7\u03b5\u03b9\u03c1\u03b7\u03bc\u03b1\u03c4\u03b9\u03ba\u03ce\u03bd \u03b4\u03c1\u03b1\u03c3\u03c4\u03b7\u03c1\u03b9\u03bf\u03c4\u03ae\u03c4\u03c9\u03bd. \u03a0\u03b1\u03c1\u2019 \u03cc\u03bb\u03b1 \u03b1\u03c5\u03c4\u03ac, \u03b7 \u03c3\u03c5\u03b3\u03ba\u03c5\u03c1\u03af\u03b1 \u03b1\u03c5\u03c4\u03ae  \u03bc\u03b1\u03c2 \u03b4\u03af\u03bd\u03b5\u03b9 \u03c4\u03b7 \u03b4\u03c5\u03bd\u03b1\u03c4\u03cc\u03c4\u03b7\u03c4\u03b1 \u03bd\u03b1 \u03b5\u03c0\u03b1\u03bd\u03b1\u03c0\u03c1\u03bf\u03c3\u03b4\u03b9\u03bf\u03c1\u03af\u03c3\u03bf\u03c5\u03bc\u03b5 \u03c4\u03b9\u03c2 \u03b4\u03c5\u03bd\u03ac\u03bc\u03b5\u03b9\u03c2 \u03bc\u03b1\u03c2, \u03bd\u03b1 \u03b5\u03c1\u03b3\u03b1\u03c3\u03c4\u03bf\u03cd\u03bc\u03b5 \u03c3\u03ba\u03bb\u03b7\u03c1\u03cc\u03c4\u03b5\u03c1\u03b1, \u03bd\u03b1 \u03b4\u03b9\u03b5\u03c5\u03c1\u03cd\u03bd\u03bf\u03c5\u03bc\u03b5 \u03c4\u03b9\u03c2 \u03b4\u03c1\u03b1\u03c3\u03c4\u03b7\u03c1\u03b9\u03cc\u03c4\u03b7\u03c4\u03ad\u03c2 \u03bc\u03b1\u03c2 \u03ba\u03b1\u03b9 \u03bd\u03b1 \u03bb\u03ac\u03b2\u03bf\u03c5\u03bc\u03b5 \u03bc\u03ad\u03c1\u03bf\u03c2 \u03c3\u03b5 \u03bc\u03af\u03b1 \u03c3\u03c5\u03bb\u03bb\u03bf\u03b3\u03b9\u03ba\u03ae \u03c0\u03c1\u03bf\u03c3\u03c0\u03ac\u03b8\u03b5\u03b9\u03b1 \u03c0\u03bf\u03c5 \u03b8\u03b1 \u03c6\u03ad\u03c1\u03b5\u03b9 \u03b1\u03c5\u03c4\u03ae \u03c4\u03b7\u03bd \u03b1\u03bd\u03b1\u03b3\u03ba\u03b1\u03af\u03b1 \u03b1\u03bb\u03bb\u03b1\u03b3\u03ae \u03c3\u03b5\u03bb\u03af\u03b4\u03b1\u03c2 \u03c3\u03c4\u03b7\u03bd \u03b5\u03b3\u03c7\u03ce\u03c1\u03b9\u03b1 \u03b1\u03b3\u03bf\u03c1\u03ac.<br \/>\n\u0391\u03c5\u03c4\u03cc \u03c0\u03bf\u03c5 \u03b1\u03be\u03af\u03b6\u03b5\u03b9 \u03bd\u03b1 \u03c4\u03bf\u03bd\u03af\u03c3\u03bf\u03c5\u03bc\u03b5 \u03b5\u03af\u03bd\u03b1\u03b9 \u03c0\u03c9\u03c2 \u03ad\u03c9\u03c2 \u03c4\u03ce\u03c1\u03b1 \u03c3\u03c4\u03b5\u03c1\u03bf\u03cd\u03bc\u03b1\u03c3\u03c4\u03b5 \u03c3\u03b1\u03bd \u03c7\u03ce\u03c1\u03b1 \u03c4\u03c9\u03bd \u03c5\u03c0\u03bf\u03b4\u03bf\u03bc\u03ce\u03bd \u03ce\u03c3\u03c4\u03b5 \u03bd\u03b1 \u03bc\u03c0\u03bf\u03c1\u03ad\u03c3\u03bf\u03c5\u03bc\u03b5 \u03bd\u03b1 \u03c5\u03c0\u03bf\u03c3\u03c4\u03b7\u03c1\u03af\u03be\u03bf\u03c5\u03bc\u03b5 \u03b5\u03c6\u03b1\u03c1\u03bc\u03bf\u03b3\u03ad\u03c2 \u03c0\u03bf\u03c5 \u03b1\u03bd\u03c4\u03b9\u03bc\u03b5\u03c4\u03c9\u03c0\u03af\u03b6\u03bf\u03c5\u03bd \u03bf\u03c1\u03b9\u03c3\u03bc\u03ad\u03bd\u03b5\u03c2 \u03b1\u03c0\u03cc \u03c4\u03b9\u03c2 \u03c0\u03b1\u03b8\u03bf\u03b3\u03ad\u03bd\u03b5\u03b9\u03ad\u03c2 \u03bc\u03b1\u03c2 \u03c3\u03c4\u03b7 \u03c1\u03af\u03b6\u03b1 \u03c4\u03bf\u03c5\u03c2, \u03cc\u03c0\u03c9\u03c2 \u03b3\u03b9\u03b1 \u03c0\u03b1\u03c1\u03ac\u03b4\u03b5\u03b9\u03b3\u03bc\u03b1 \u03b7 \u03c6\u03bf\u03c1\u03bf\u03ba\u03ac\u03c1\u03c4\u03b1. \u0397 EMC \u03ad\u03c7\u03b5\u03b9 \u03b4\u03b5\u03c3\u03bc\u03b5\u03c5\u03b8\u03b5\u03af \u03bd\u03b1 \u03c3\u03c5\u03bd\u03b5\u03c7\u03af\u03c3\u03b5\u03b9 \u03bd\u03b1 \u03c0\u03b1\u03c1\u03ad\u03c7\u03b5\u03b9 \u03c4\u03b9\u03c2 \u03c5\u03c8\u03b7\u03bb\u03ae\u03c2 \u03c0\u03bf\u03b9\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2 \u03c5\u03c0\u03b7\u03c1\u03b5\u03c3\u03af\u03b5\u03c2 \u03c0\u03bf\u03c5 \u03c3\u03c5\u03bd\u03bf\u03b4\u03b5\u03cd\u03bf\u03c5\u03bd \u03c4\u03bf \u03cc\u03bd\u03bf\u03bc\u03b1 \u03ba\u03b1\u03b9 \u03c4\u03bf portfolio \u03c4\u03b7\u03c2, \u03ba\u03b1\u03b8\u03ce\u03c2 \u03b5\u03af\u03bc\u03b1\u03c3\u03c4\u03b5 \u03b2\u03b1\u03b8\u03cd\u03c4\u03b1\u03c4\u03b1 \u03c0\u03b5\u03c0\u03b5\u03b9\u03c3\u03bc\u03ad\u03bd\u03bf\u03b9 \u03c0\u03c9\u03c2 \u03bf\u03b9 \u03ba\u03b1\u03b9\u03bd\u03bf\u03c4\u03cc\u03bc\u03b5\u03c2 \u03c4\u03b5\u03c7\u03bd\u03bf\u03bb\u03bf\u03b3\u03af\u03b5\u03c2 \u03c0\u03bf\u03c5 \u03c0\u03c1\u03bf\u03c3\u03c6\u03ad\u03c1\u03bf\u03c5\u03bc\u03b5 \u03b2\u03bf\u03b7\u03b8\u03bf\u03cd\u03bd \u03c3\u03b7\u03bc\u03b1\u03bd\u03c4\u03b9\u03ba\u03ac \u03b1\u03c0\u03cc \u03ac\u03c0\u03bf\u03c8\u03b7 \u03b1\u03c0\u03bf\u03b4\u03bf\u03c4\u03b9\u03ba\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2, \u03c4\u03b1\u03c7\u03cd\u03c4\u03b7\u03c4\u03b1\u03c2 \u03ba\u03b1\u03b9 \u03bc\u03b5\u03af\u03c9\u03c3\u03b7\u03c2 \u03ba\u03cc\u03c3\u03c4\u03bf\u03c5\u03c2. \u039a\u03b1\u03b9 \u03c4\u03b1 \u03c4\u03c1\u03af\u03b1 \u03b1\u03c5\u03c4\u03ac \u03c3\u03c4\u03bf\u03b9\u03c7\u03b5\u03af\u03b1 \u03b5\u03af\u03bd\u03b1\u03b9 \u03ba\u03c1\u03b9\u03c3\u03b9\u03bc\u03cc\u03c4\u03b1\u03c4\u03b1 \u03c3\u03c4\u03b7\u03bd \u03c0\u03bf\u03c1\u03b5\u03af\u03b1 \u03bc\u03b9\u03b1\u03c2 \u03b5\u03c0\u03b9\u03c7\u03b5\u03af\u03c1\u03b7\u03c3\u03b7\u03c2 \u03b1\u03bb\u03bb\u03ac \u03ba\u03b1\u03b9 \u03c4\u03b7\u03c2 \u03bf\u03b9\u03ba\u03bf\u03bd\u03bf\u03bc\u03af\u03b1\u03c2 \u03b3\u03b5\u03bd\u03b9\u03ba\u03cc\u03c4\u03b5\u03c1\u03b1.  <\/p>\n<p><br class=\"spacer_\" \/><\/p>\n<p><em><strong>2.\t\u0397 EMC \u03b5\u03c0\u03b9\u03b4\u03b9\u03ce\u03ba\u03b5\u03b9 \u03bc\u03b9\u03b1 \u03b7\u03b3\u03b5\u03c4\u03b9\u03ba\u03ae \u03b8\u03ad\u03c3\u03b7 \u03c3\u03b5 \u03c4\u03b5\u03c7\u03bd\u03bf\u03bb\u03bf\u03b3\u03af\u03b5\u03c2 cloud \u03ba\u03b1\u03b9 virtualization. \u03a0\u03bf\u03b9\u03b5\u03c2 \u03bd\u03ad\u03b5\u03c2 \u03b5\u03be\u03b5\u03bb\u03af\u03be\u03b5\u03b9\u03c2 \u03c5\u03c0\u03ac\u03c1\u03c7\u03bf\u03c5\u03bd \u03c3\u03c4\u03b1 \u03c0\u03b1\u03c1\u03b1\u03c0\u03ac\u03bd\u03c9 \u03c0\u03b5\u03b4\u03af\u03b1 \u03b4\u03c1\u03b1\u03c3\u03c4\u03b7\u03c1\u03b9\u03bf\u03c4\u03ae\u03c4\u03c9\u03bd \u03c3\u03b1\u03c2;<br \/>\n<\/strong><\/em><br \/>\n\u0397 \u03bc\u03b5\u03c4\u03b1\u03ba\u03af\u03bd\u03b7\u03c3\u03b7 \u03b4\u03b5\u03b4\u03bf\u03bc\u03ad\u03bd\u03c9\u03bd \u03c3\u03b5 \u03c5\u03c0\u03bf\u03b4\u03bf\u03bc\u03ad\u03c2 cloud, \u03b5\u03af\u03c4\u03b5 \u03bc\u03b9\u03bb\u03ac\u03bc\u03b5 \u03b3\u03b9\u03b1 \u03bb\u03af\u03b3\u03b1 \u03ae \u03ba\u03b1\u03b9 \u03b5\u03ba\u03b1\u03c4\u03bf\u03bd\u03c4\u03ac\u03b4\u03b5\u03c2 terabytes, \u03ae \u03b1\u03ba\u03cc\u03bc\u03b7 \u03ba\u03b1\u03b9 \u03b3\u03b9\u03b1 petabytes, \u03b1\u03c1\u03c7\u03af\u03b6\u03b5\u03b9 \u03ba\u03b1\u03b9 \u03b3\u03af\u03bd\u03b5\u03c4\u03b1\u03b9 \u03bc\u03b9\u03b1 \u03b1\u03c1\u03ba\u03b5\u03c4\u03ac \u03bf\u03c5\u03c3\u03b9\u03b1\u03c3\u03c4\u03b9\u03ba\u03ae \u03c5\u03c0\u03cc\u03b8\u03b5\u03c3\u03b7. \u039f\u03b9 \u03c4\u03b5\u03c7\u03bd\u03bf\u03bb\u03bf\u03b3\u03af\u03b5\u03c2 \u2013 \u03ba\u03bb\u03b5\u03b9\u03b4\u03b9\u03ac, \u03cc\u03c3\u03bf\u03bd \u03b1\u03c6\u03bf\u03c1\u03ac \u03c4\u03b7 \u03b4\u03b7\u03bc\u03b9\u03bf\u03c5\u03c1\u03b3\u03af\u03b1 \u03c5\u03b2\u03c1\u03b9\u03b4\u03b9\u03ba\u03ce\u03bd cloud, \u03b5\u03af\u03bd\u03b1\u03b9 \u03c4\u03c1\u03b5\u03b9\u03c2 \u03ba\u03b1\u03b9 \u03b1\u03c6\u03bf\u03c1\u03bf\u03cd\u03bd \u03c4\u03b7\u03bd \u03b1\u03c3\u03c6\u03ac\u03bb\u03b5\u03b9\u03b1, \u03c4\u03b7 \u03b4\u03b9\u03b1\u03c7\u03b5\u03af\u03c1\u03b9\u03c3\u03b7 \u03ba\u03b1\u03b9 \u03c4\u03b7 \u03bc\u03b5\u03c4\u03b1\u03ba\u03af\u03bd\u03b7\u03c3\u03b7 \u03c4\u03c9\u03bd \u03b4\u03b5\u03b4\u03bf\u03bc\u03ad\u03bd\u03c9\u03bd. \u0393\u03bd\u03c9\u03c1\u03af\u03b6\u03b5\u03c4\u03b5 \u03c0\u03bf\u03bb\u03cd \u03ba\u03b1\u03bb\u03ac \u03cc\u03c4\u03b9 \u03b7 \u03c4\u03b5\u03c7\u03bd\u03bf\u03bb\u03bf\u03b3\u03af\u03b1 EMC\uf7c5 VPLEX\u2122 \u03b1\u03c0\u03bf\u03c4\u03b5\u03bb\u03b5\u03af \u03ad\u03bd\u03b1 \u03b2\u03ae\u03bc\u03b1 \u03c0\u03c1\u03bf\u03c2 \u03c4\u03b7 \u03c3\u03c5\u03b3\u03ba\u03b5\u03ba\u03c1\u03b9\u03bc\u03ad\u03bd\u03b7 \u03ba\u03b1\u03c4\u03b5\u03cd\u03b8\u03c5\u03bd\u03c3\u03b7, \u03cc\u03bd\u03c4\u03b1\u03c2 \u03bc\u03b9\u03b1 \u03b5\u03ba\u03c0\u03bb\u03b7\u03ba\u03c4\u03b9\u03ba\u03ae \u03c4\u03b5\u03c7\u03bd\u03bf\u03bb\u03bf\u03b3\u03af\u03b1 \u03c0\u03bf\u03c5 \u03b5\u03c0\u03b9\u03c4\u03c1\u03ad\u03c0\u03b5\u03b9 \u03c4\u03bf caching \u03ba\u03b1\u03b9 \u03c4\u03b7\u03bd \u03b1\u03c0\u03bf\u03b8\u03ae\u03ba\u03b5\u03c5\u03c3\u03b7 \u03b4\u03b5\u03b4\u03bf\u03bc\u03ad\u03bd\u03c9\u03bd \u03c3\u03b5 \u03bc\u03b5\u03b3\u03ac\u03bb\u03b5\u03c2 \u03b1\u03c0\u03bf\u03c3\u03c4\u03ac\u03c3\u03b5\u03b9\u03c2.<br \/>\n\u0397 \u03ba\u03c1\u03c5\u03c6\u03ae \u03ae \u03b3\u03c1\u03ae\u03b3\u03bf\u03c1\u03b7 \u03bc\u03bd\u03ae\u03bc\u03b7 (cache), \u03bc\u03b9\u03b1 \u03b5\u03c6\u03b5\u03cd\u03c1\u03b5\u03c3\u03b7 \u03b7\u03bb\u03b9\u03ba\u03af\u03b1\u03c2 \u03af\u03c3\u03c9\u03c2 \u03ba\u03b1\u03b9 40 \u03b5\u03c4\u03ce\u03bd, \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03b5\u03af\u03c4\u03b1\u03b9 \u03b1\u03c0\u03cc \u03c4\u03b7\u03bd EMC \u03b3\u03b9\u03b1 \u03c0\u03c1\u03ce\u03c4\u03b7 \u03c6\u03bf\u03c1\u03ac \u03c3\u03b5 \u03b5\u03c6\u03b1\u03c1\u03bc\u03bf\u03b3\u03ad\u03c2 storage. \u0395\u03af\u03bd\u03b1\u03b9 \u03b1\u03c1\u03ba\u03b5\u03c4\u03ac \u03c3\u03c5\u03bd\u03b1\u03c1\u03c0\u03b1\u03c3\u03c4\u03b9\u03ba\u03cc \u03b1\u03bb\u03bb\u03ac \u03c5\u03c0\u03ac\u03c1\u03c7\u03b5\u03b9 \u03b1\u03ba\u03cc\u03bc\u03b7 \u03bc\u03b5\u03b3\u03ac\u03bb\u03bf \u03c0\u03b5\u03c1\u03b9\u03b8\u03ce\u03c1\u03b9\u03bf \u03b5\u03be\u03ad\u03bb\u03b9\u03be\u03b7\u03c2, \u03bc\u03ad\u03c7\u03c1\u03b9 \u03bd\u03b1 \u03c6\u03c4\u03ac\u03c3\u03bf\u03c5\u03bc\u03b5 \u03bd\u03b1 \u03bc\u03b9\u03bb\u03ac\u03bc\u03b5 \u03b3\u03b9\u03b1 \u03bc\u03b9\u03b1 \u03ce\u03c1\u03b9\u03bc\u03b7 \u03c4\u03b5\u03c7\u03bd\u03bf\u03bb\u03bf\u03b3\u03af\u03b1. \u0398\u03b1 \u03c0\u03c1\u03ad\u03c0\u03b5\u03b9 \u03bd\u03b1 \u03bc\u03c0\u03bf\u03c1\u03bf\u03cd\u03bc\u03b5 \u03bd\u03b1 \u03b4\u03b9\u03b1\u03c7\u03b5\u03b9\u03c1\u03b9\u03b6\u03cc\u03bc\u03b1\u03c3\u03c4\u03b5 \u03ba\u03b1\u03b9 \u03b1\u03c1\u03c7\u03b5\u03af\u03b1 \u03b1\u03bb\u03bb\u03ac \u03ba\u03b1\u03b9 blocks. \u039d\u03b1 \u03b1\u03c3\u03c7\u03bf\u03bb\u03b7\u03b8\u03bf\u03cd\u03bc\u03b5 \u03bc\u03b5 \u03b4\u03b9\u03ac\u03c6\u03bf\u03c1\u03b1 \u03b8\u03ad\u03bc\u03b1\u03c4\u03b1 \u03c0\u03bf\u03c5 \u03b1\u03c6\u03bf\u03c1\u03bf\u03cd\u03bd \u03c4\u03b7\u03bd \u03c5\u03c8\u03b7\u03bb\u03ae \u03b4\u03b9\u03b1\u03b8\u03b5\u03c3\u03b9\u03bc\u03cc\u03c4\u03b7\u03c4\u03b1 (high availability) \u03ba\u03b1\u03b9 \u03c4\u03b7\u03bd \u03b5\u03bd\u03c3\u03c9\u03bc\u03ac\u03c4\u03c9\u03c3\u03b7 \u03c4\u03b7\u03c2 \u03c3\u03c4\u03bf VMware vMotion\u2122, \u03ba\u03bb\u03c0.<br \/>\n\u0391\u03ba\u03cc\u03bc\u03b7, \u03b2\u03c1\u03b9\u03c3\u03ba\u03cc\u03bc\u03b1\u03c3\u03c4\u03b5 \u03c3\u03b5 \u03c0\u03c1\u03ce\u03b9\u03bc\u03b1 \u03c3\u03c4\u03ac\u03b4\u03b9\u03b1 \u03cc\u03c3\u03bf\u03bd \u03b1\u03c6\u03bf\u03c1\u03ac \u03c4\u03b7\u03bd \u03b5\u03be\u03ad\u03bb\u03b9\u03be\u03b7 \u03ba\u03b1\u03b9 \u03c4\u03b7 \u03c3\u03c5\u03bc\u03b2\u03b1\u03c4\u03cc\u03c4\u03b7\u03c4\u03b1 \u03b4\u03b9\u03b1\u03c6\u03cc\u03c1\u03c9\u03bd \u03b5\u03c0\u03b9\u03bc\u03ad\u03c1\u03bf\u03c5\u03c2 \u03c4\u03b5\u03c7\u03bd\u03bf\u03bb\u03bf\u03b3\u03b9\u03ce\u03bd, \u03b1\u03bb\u03bb\u03ac \u03ba\u03b1\u03b9 \u03c3\u03b5 \u03c3\u03c7\u03ad\u03c3\u03b7 \u03bc\u03b5 \u03bf\u03c1\u03b9\u03c3\u03bc\u03ad\u03bd\u03b1 \u03b8\u03ad\u03bc\u03b1\u03c4\u03b1 \u03bd\u03bf\u03bc\u03b9\u03ba\u03ae\u03c2 \u03ae \u03b5\u03c0\u03b9\u03c7\u03b5\u03b9\u03c1\u03b7\u03bc\u03b1\u03c4\u03b9\u03ba\u03ae\u03c2 \u03c5\u03c6\u03ae\u03c2. \u03a0\u03b1\u03c1\u03cc\u03bb\u03b1 \u03b1\u03c5\u03c4\u03ac, \u03ad\u03c7\u03bf\u03c5\u03bd \u03ae\u03b4\u03b7 \u03ba\u03ac\u03bd\u03b5\u03b9 \u03c4\u03b7\u03bd \u03b5\u03bc\u03c6\u03ac\u03bd\u03b9\u03c3\u03ae \u03c4\u03bf\u03c5\u03c2 \u03b5\u03c4\u03b1\u03b9\u03c1\u03af\u03b5\u03c2 \u03c0\u03b1\u03c1\u03bf\u03c7\u03ae\u03c2 \u03c5\u03c0\u03b7\u03c1\u03b5\u03c3\u03b9\u03ce\u03bd cloud (service providers) \u03ba\u03b1\u03b9 \u03b1\u03c5\u03c4\u03ae \u03b5\u03af\u03bd\u03b1\u03b9 \u03bc\u03af\u03b1 \u03c3\u03c4\u03c1\u03b1\u03c4\u03b7\u03b3\u03b9\u03ba\u03ae \u03c0\u03c1\u03bf\u03c2 \u03c4\u03b7\u03bd \u03bf\u03c0\u03bf\u03af\u03b1 \u03b7 EMC \u03ba\u03b1\u03c4\u03b5\u03c5\u03b8\u03cd\u03bd\u03b5\u03b9 \u03c4\u03bf\u03c5\u03c2 \u03c3\u03c5\u03bd\u03b5\u03c1\u03b3\u03ac\u03c4\u03b5\u03c2 \u03c4\u03b7\u03c2. \u03a4\u03b7\u03bd \u03af\u03b4\u03b9\u03b1 \u03c3\u03c4\u03b9\u03b3\u03bc\u03ae, \u03c5\u03c0\u03ac\u03c1\u03c7\u03bf\u03c5\u03bd \u03bf\u03c1\u03b9\u03c3\u03bc\u03ad\u03bd\u03bf\u03b9 \u03c0\u03bf\u03c5 \u03ad\u03c7\u03bf\u03c5\u03bd \u03b5\u03bd\u03b4\u03b5\u03c7\u03bf\u03bc\u03ad\u03bd\u03c9\u03c2 \u03b1\u03c1\u03bd\u03b7\u03c4\u03b9\u03ba\u03ae \u03c3\u03c4\u03ac\u03c3\u03b7 \u03b1\u03c0\u03ad\u03bd\u03b1\u03bd\u03c4\u03b9 \u03c3\u03c4\u03bf \u03bd\u03ad\u03bf \u03b1\u03c5\u03c4\u03cc \u03bc\u03bf\u03bd\u03c4\u03ad\u03bb\u03bf, \u03b1\u03bb\u03bb\u03ac \u03c0\u03b9\u03c3\u03c4\u03b5\u03cd\u03c9 \u03c0\u03c9\u03c2 \u03cc\u03bb\u03bf\u03b9 \u03b8\u03b1 \u03b1\u03bd\u03b1\u03b3\u03bd\u03c9\u03c1\u03af\u03c3\u03bf\u03c5\u03bd \u03cc\u03c4\u03b9 \u03c4\u03b5\u03bb\u03b9\u03ba\u03ac \u03ba\u03ac\u03c4\u03b9 \u03c3\u03b7\u03bc\u03b1\u03bd\u03c4\u03b9\u03ba\u03cc \u03c3\u03c5\u03bc\u03b2\u03b1\u03af\u03bd\u03b5\u03b9 \u03c3\u03c4\u03bf \u03c7\u03ce\u03c1\u03bf, \u03ba\u03ac\u03c4\u03b9 \u03c4\u03bf \u03bf\u03c0\u03bf\u03af\u03bf \u03b1\u03bb\u03bb\u03ac\u03b6\u03b5\u03b9 \u03c4\u03bf\u03bd \u03c4\u03c1\u03cc\u03c0\u03bf \u03bc\u03b5 \u03c4\u03bf\u03bd \u03bf\u03c0\u03bf\u03af\u03bf \u03b8\u03b1 \u03c4\u03c1\u03ad\u03c7\u03bf\u03c5\u03bc\u03b5 \u03c4\u03b1 \u03c3\u03c5\u03c3\u03c4\u03ae\u03bc\u03b1\u03c4\u03b1 \u0399\u03a4 \u03ba\u03b1\u03b9 \u03b8\u03b1 \u03ba\u03ac\u03bd\u03bf\u03c5\u03bc\u03b5 \u03c4\u03b7 \u03b4\u03bf\u03c5\u03bb\u03b5\u03b9\u03ac \u03bc\u03b1\u03c2 \u03c4\u03b1 \u03b5\u03c0\u03cc\u03bc\u03b5\u03bd\u03b1 \u03c7\u03c1\u03cc\u03bd\u03b9\u03b1. \u039f\u03c1\u03b9\u03c3\u03bc\u03ad\u03bd\u03bf\u03b9 \u03b5\u03c0\u03b1\u03bd\u03b5\u03be\u03b5\u03c4\u03ac\u03b6\u03bf\u03c5\u03bd \u03c3\u03c5\u03bd\u03bf\u03bb\u03b9\u03ba\u03ac \u03c4\u03b7 \u03c3\u03c4\u03c1\u03b1\u03c4\u03b7\u03b3\u03b9\u03ba\u03ae \u03c4\u03bf\u03c5\u03c2 \u03cc\u03c3\u03bf\u03bd \u03b1\u03c6\u03bf\u03c1\u03ac \u03c4\u03b7\u03bd \u03b5\u03be\u03ad\u03bb\u03b9\u03be\u03b7 \u03c4\u03c9\u03bd \u03bc\u03b7\u03c7\u03b1\u03bd\u03bf\u03b3\u03c1\u03b1\u03c6\u03b9\u03ba\u03ce\u03bd \u03c4\u03bf\u03c5\u03c2 \u03ba\u03ad\u03bd\u03c4\u03c1\u03c9\u03bd.<br \/>\n\u0394\u03b9\u03b1\u03bd\u03cd\u03bf\u03c5\u03bc\u03b5 \u03bc\u03b9\u03b1 \u03c0\u03c1\u03ce\u03b9\u03bc\u03b7 \u03ba\u03b1\u03b9 \u03c0\u03bf\u03bb\u03cd \u03b5\u03bd\u03b4\u03b9\u03b1\u03c6\u03ad\u03c1\u03bf\u03c5\u03c3\u03b1 \u03c0\u03b5\u03c1\u03af\u03bf\u03b4\u03bf, \u03b7 \u03bf\u03c0\u03bf\u03af\u03b1 \u03ba\u03b1\u03c4\u03ac \u03c4\u03b7 \u03b3\u03bd\u03ce\u03bc\u03b7 \u03bc\u03bf\u03c5 \u03b8\u03b1 \u03ba\u03ac\u03bd\u03b5\u03b9 \u03c4\u03b9\u03c2 \u03b5\u03c0\u03b9\u03c7\u03b5\u03b9\u03c1\u03ae\u03c3\u03b5\u03b9\u03c2, \u03ba\u03b1\u03b9 \u03c3\u03af\u03b3\u03bf\u03c5\u03c1\u03b1 \u03c4\u03bf\u03c5\u03c2 \u03b4\u03b9\u03b5\u03c5\u03b8\u03c5\u03bd\u03c4\u03ad\u03c2 \u03c0\u03bb\u03b7\u03c1\u03bf\u03c6\u03bf\u03c1\u03b9\u03ba\u03ae\u03c2, \u03bd\u03b1 \u03b1\u03bd\u03b1\u03b6\u03b7\u03c4\u03ae\u03c3\u03bf\u03c5\u03bd \u03c0\u03c1\u03bf\u03c3\u03b5\u03ba\u03c4\u03b9\u03ba\u03ac \u03b1\u03c0\u03b1\u03bd\u03c4\u03ae\u03c3\u03b5\u03b9\u03c2 \u03c3\u03b5 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\/><\/p>\n<p><em><strong>3.\t\u03a0\u03bf\u03b9\u03b5\u03c2 \u03bb\u03cd\u03c3\u03b5\u03b9\u03c2 \u03c3\u03b1\u03c2 \u03c4\u03c5\u03b3\u03c7\u03ac\u03bd\u03bf\u03c5\u03bd \u03b9\u03b4\u03b9\u03b1\u03af\u03c4\u03b5\u03c1\u03b7\u03c2 \u03b1\u03c0\u03bf\u03b4\u03bf\u03c7\u03ae\u03c2 \u03b1\u03c0\u03cc \u03c4\u03b7\u03bd \u03b5\u03bb\u03bb\u03b7\u03bd\u03b9\u03ba\u03ae \u03b1\u03b3\u03bf\u03c1\u03ac \u03ba\u03b1\u03b9 \u03c3\u03b5 \u03c0\u03bf\u03b9\u03b5\u03c2 \u03bd\u03ad\u03b5\u03c2 \u03c0\u03c1\u03bf\u03c4\u03ac\u03c3\u03b5\u03b9\u03c2 \u03c3\u03b1\u03c2 \u03b8\u03b1 \u03b5\u03c0\u03b5\u03bd\u03b4\u03cd\u03c3\u03b5\u03c4\u03b5 \u03c4\u03bf 2011;<\/strong><\/em><\/p>\n<p>\u0393\u03b9\u03b1 \u03b1\u03c1\u03ba\u03b5\u03c4\u03ac \u03c7\u03c1\u03cc\u03bd\u03b9\u03b1, \u03b7 EMC \u03ad\u03c7\u03b5\u03b9 \u03b1\u03ba\u03bf\u03bb\u03bf\u03c5\u03b8\u03ae\u03c3\u03b5\u03b9 \u03bc\u03b5 \u03b5\u03c0\u03b9\u03c4\u03c5\u03c7\u03af\u03b1 \u03c4\u03b7 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\u03b1\u03c1\u03c7\u03b5\u03af\u03c9\u03bd, block \u03b4\u03b5\u03b4\u03bf\u03bc\u03ad\u03bd\u03c9\u03bd \u03ba\u03b1\u03b9 \u03bc\u03b5\u03bc\u03bf\u03bd\u03c9\u03bc\u03ad\u03bd\u03c9\u03bd objects, \u03c0\u03c1\u03bf\u03c3\u03c6\u03ad\u03c1\u03bf\u03bd\u03c4\u03b1\u03c2 \u03bb\u03b5\u03b9\u03c4\u03bf\u03c5\u03c1\u03b3\u03af\u03b5\u03c2 \u03c4\u03c9\u03bd high-end \u03c3\u03c5\u03c3\u03c4\u03b7\u03bc\u03ac\u03c4\u03c9\u03bd \u03bc\u03ad\u03c3\u03b1 \u03b1\u03c0\u03cc \u03b5\u03cd\u03c7\u03c1\u03b7\u03c3\u03c4\u03b1, scalable \u03c0\u03b1\u03ba\u03ad\u03c4\u03b1.  \u039f\u03b9 \u03c0\u03bb\u03b1\u03c4\u03c6\u03cc\u03c1\u03bc\u03b5\u03c2 \u03b5\u03bd\u03bf\u03c0\u03bf\u03b9\u03b7\u03bc\u03ad\u03bd\u03b7\u03c2 \u03b1\u03c0\u03bf\u03b8\u03ae\u03ba\u03b5\u03c5\u03c3\u03b7\u03c2 VNX \u03ad\u03c7\u03bf\u03c5\u03bd \u03c4\u03bf \u03c7\u03b1\u03bc\u03b7\u03bb\u03cc\u03c4\u03b5\u03c1\u03bf \u03b4\u03c5\u03bd\u03b1\u03c4\u03cc \u03ba\u03cc\u03c3\u03c4\u03bf\u03c2 \u03ba\u03c4\u03ae\u03c3\u03b7\u03c2, \u03b5\u03bd\u03ce \u03b5\u03af\u03bd\u03b1\u03b9 \u03b1\u03c0\u03bb\u03ac \u03c3\u03c4\u03b7\u03bd \u03b5\u03b3\u03ba\u03b1\u03c4\u03ac\u03c3\u03c4\u03b1\u03c3\u03b7 \u03ba\u03b1\u03b9 \u03c4\u03b7 \u03b4\u03b9\u03b1\u03c7\u03b5\u03af\u03c1\u03b9\u03c3\u03b7, \u03c7\u03c9\u03c1\u03af\u03c2 \u03bd\u03b1 \u03b8\u03c5\u03c3\u03b9\u03ac\u03b6\u03bf\u03bd\u03c4\u03b1\u03b9 \u03bf\u03b9 \u03b4\u03c5\u03bd\u03b1\u03c4\u03cc\u03c4\u03b7\u03c4\u03b5\u03c2 \u03c0\u03b1\u03c1\u03b1\u03bc\u03b5\u03c4\u03c1\u03bf\u03c0\u03bf\u03af\u03b7\u03c3\u03b7\u03c2 \u03ba\u03b1\u03b9 \u03c0\u03c1\u03bf\u03c3\u03b1\u03c1\u03bc\u03bf\u03b3\u03ae\u03c2 \u03c3\u03c4\u03b9\u03c2 \u03b1\u03bd\u03ac\u03b3\u03ba\u03b5\u03c2 \u03ba\u03ac\u03b8\u03b5 \u03c0\u03b5\u03bb\u03ac\u03c4\u03b7. \u039f \u03c3\u03c5\u03bd\u03b4\u03c5\u03b1\u03c3\u03bc\u03cc\u03c2 file-and block-based storage \u03c3\u03b5 \u03bc\u03b9\u03b1 \u03ba\u03b1\u03b9 \u03bc\u03cc\u03bd\u03bf 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\u03c3\u03c4\u03b5\u03bb\u03ad\u03c7\u03b7 \u03c4\u03bf\u03c5\u03c2 \u03c3\u03c4\u03b7 \u03bb\u03ae\u03c8\u03b7 \u03b1\u03c0\u03bf\u03c6\u03ac\u03c3\u03b5\u03c9\u03bd.<br \/>\n\u039f\u03b9 \u03b4\u03b9\u03b5\u03c5\u03b8\u03cd\u03bd\u03c3\u03b5\u03b9\u03c2 IT \u03bc\u03c0\u03bf\u03c1\u03bf\u03cd\u03bd \u03bd\u03b1 \u03b1\u03bd\u03c4\u03b1\u03c0\u03bf\u03ba\u03c1\u03b9\u03b8\u03bf\u03cd\u03bd \u03c3\u03c4\u03b7\u03bd \u03c0\u03c1\u03cc\u03ba\u03bb\u03b7\u03c3\u03b7 \u03c4\u03c9\u03bd Big Data \u03c7\u03c9\u03c1\u03af\u03c2 \u03c4\u03bf \u03ba\u03cc\u03c3\u03c4\u03bf\u03c2 \u03ba\u03b1\u03b9 \u03c4\u03b7 \u03b4\u03b9\u03b1\u03c7\u03b5\u03b9\u03c1\u03b9\u03c3\u03c4\u03b9\u03ba\u03ae \u03c0\u03bf\u03bb\u03c5\u03c0\u03bb\u03bf\u03ba\u03cc\u03c4\u03b7\u03c4\u03b1 \u03c4\u03c9\u03bd \u03c0\u03b1\u03c1\u03b1\u03b4\u03bf\u03c3\u03b9\u03b1\u03ba\u03ce\u03bd DBMS. \u0397 \u03c4\u03b5\u03c7\u03bd\u03bf\u03bb\u03bf\u03b3\u03af\u03b1 EMC Greenplum DCA, \u03c7\u03ac\u03c1\u03b7 \u03c3\u03c4\u03b7 \u03b4\u03c5\u03bd\u03b1\u03c4\u03cc\u03c4\u03b7\u03c4\u03b1 \u03ba\u03ac\u03b8\u03b5\u03c4\u03b7\u03c2 \u03bf\u03bb\u03bf\u03ba\u03bb\u03ae\u03c1\u03c9\u03c3\u03b7\u03c2 (vertically integrated stack), \u03b2\u03bf\u03b7\u03b8\u03ac \u03c4\u03b7\u03bd \u03b1\u03c0\u03bf\u03c6\u03c5\u03b3\u03ae \u03c4\u03bf\u03c5 \u03c3\u03c7\u03b5\u03c4\u03b9\u03ba\u03bf\u03cd \u03ba\u03cc\u03c3\u03c4\u03bf\u03c5\u03c2. \u0388\u03c4\u03c3\u03b9, \u03ba\u03b1\u03b8\u03ce\u03c2 \u03b1\u03c5\u03be\u03ac\u03bd\u03b5\u03c4\u03b1\u03b9 \u03bf \u03cc\u03b3\u03ba\u03bf\u03c2 \u03c4\u03c9\u03bd \u03b4\u03b5\u03b4\u03bf\u03bc\u03ad\u03bd\u03c9\u03bd \u03ba\u03b1\u03b9 \u03bf \u03b1\u03c1\u03b9\u03b8\u03bc\u03cc\u03c2 \u03c4\u03c9\u03bd online \u03c0\u03b7\u03b3\u03ce\u03bd \u03c0\u03bb\u03b7\u03c1\u03bf\u03c6\u03bf\u03c1\u03af\u03b1\u03c2, \u03bf\u03b9 \u03b4\u03b9\u03b1\u03c7\u03b5\u03b9\u03c1\u03b9\u03c3\u03c4\u03ad\u03c2 \u03c4\u03bf\u03c5 \u03c3\u03c5\u03c3\u03c4\u03ae\u03bc\u03b1\u03c4\u03bf\u03c2 \u03bc\u03c0\u03bf\u03c1\u03bf\u03cd\u03bd, \u03b5\u03cd\u03ba\u03bf\u03bb\u03b1 \u03ba\u03b1\u03b9 \u03bc\u03b5 \u03b5\u03bb\u03ac\u03c7\u03b9\u03c3\u03c4\u03bf downtime, \u03bd\u03b1 \u03b5\u03c0\u03b5\u03ba\u03c4\u03b5\u03af\u03bd\u03bf\u03c5\u03bd \u03c4\u03b7\u03bd \u03c5\u03c0\u03bf\u03b4\u03bf\u03bc\u03ae \u03c0\u03bf\u03c5 \u03b4\u03b9\u03b1\u03b8\u03ad\u03c4\u03bf\u03c5\u03bd, \u03c0\u03c1\u03bf\u03c3\u03b8\u03ad\u03c4\u03bf\u03bd\u03c4\u03b1\u03c2 \u03b5\u03c0\u03b9\u03c0\u03bb\u03ad\u03bf\u03bd \u03ba\u03cc\u03bc\u03b2\u03bf\u03c5\u03c2 \u03ae racks \u03b1\u03bd\u03ac\u03bb\u03bf\u03b3\u03b1 \u03bc\u03b5 \u03c4\u03b9\u03c2 \u03b1\u03bd\u03ac\u03b3\u03ba\u03b5\u03c2 \u03c4\u03bf\u03c5\u03c2. \u03a4\u03bf \u03bb\u03bf\u03b3\u03b9\u03c3\u03bc\u03b9\u03ba\u03cc EMC Greenplum, \u03c7\u03ac\u03c1\u03b7 \u03c3\u03c4\u03b7\u03bd \u03b1\u03c1\u03c7\u03b9\u03c4\u03b5\u03ba\u03c4\u03bf\u03bd\u03b9\u03ba\u03ae native MPP, \u03b1\u03bd\u03b1\u03bb\u03b1\u03bc\u03b2\u03ac\u03bd\u03b5\u03b9 \u03b1\u03c5\u03c4\u03cc\u03bc\u03b1\u03c4\u03b1 \u03c4\u03b7\u03bd \u03b1\u03bd\u03b1\u03ba\u03b1\u03c4\u03b1\u03bd\u03bf\u03bc\u03ae \u03c4\u03c9\u03bd \u03c0\u03bb\u03b7\u03c1\u03bf\u03c6\u03bf\u03c1\u03b9\u03ce\u03bd \u03c3\u03c4\u03bf\u03c5\u03c2 \u03bd\u03ad\u03bf\u03c5\u03c2 \u03ba\u03cc\u03bc\u03b2\u03bf\u03c5\u03c2. \u0388\u03c4\u03c3\u03b9, \u03bf\u03b9 \u03b4\u03b9\u03b1\u03c7\u03b5\u03b9\u03c1\u03b9\u03c3\u03c4\u03ad\u03c2 \u03bc\u03c0\u03bf\u03c1\u03bf\u03cd\u03bd, \u03b5\u03c0\u03b5\u03bc\u03b2\u03b1\u03af\u03bd\u03bf\u03bd\u03c4\u03b1\u03c2 \u03c3\u03c4\u03bf physical layer \u03c4\u03bf\u03c5 \u03c3\u03c5\u03c3\u03c4\u03ae\u03bc\u03b1\u03c4\u03bf\u03c2 \u03b1\u03c0\u03bf\u03b8\u03ae\u03ba\u03b5\u03c5\u03c3\u03b7\u03c2, \u03bd\u03b1 \u03b2\u03b5\u03bb\u03c4\u03b9\u03c3\u03c4\u03bf\u03c0\u03bf\u03b9\u03bf\u03cd\u03bd \u03c4\u03b7\u03bd \u03c4\u03b1\u03c7\u03cd\u03c4\u03b7\u03c4\u03b1 \u03c0\u03c1\u03bf\u03c3\u03c0\u03ad\u03bb\u03b1\u03c3\u03b7\u03c2, \u03bc\u03b5 \u03b2\u03ac\u03c3\u03b7 \u03c4\u03b9\u03c2 \u03b1\u03bd\u03ac\u03b3\u03ba\u03b5\u03c2 \u03c4\u03c9\u03bd \u03c7\u03c1\u03b7\u03c3\u03c4\u03ce\u03bd \u03ba\u03b1\u03b9 \u03c4\u03b1 \u03c7\u03b1\u03c1\u03b1\u03ba\u03c4\u03b7\u03c1\u03b9\u03c3\u03c4\u03b9\u03ba\u03ac \u03c4\u03c9\u03bd \u03b5\u03c6\u03b1\u03c1\u03bc\u03bf\u03b3\u03ce\u03bd \u03c0\u03bf\u03c5 \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03bf\u03cd\u03bd \u03c4\u03b1 \u03b4\u03b5\u03b4\u03bf\u03bc\u03ad\u03bd\u03b1 \u03b1\u03c5\u03c4\u03ac.<\/p>\n<p><br class=\"spacer_\" \/><\/p>\n<p><em><strong>4.\t\u0395\u03af\u03c3\u03c4\u03b5 \u03b1\u03b9\u03c3\u03b9\u03cc\u03b4\u03bf\u03be\u03bf\u03c2 \u03ae \u03b5\u03c0\u03b9\u03c6\u03c5\u03bb\u03b1\u03ba\u03c4\u03b9\u03ba\u03cc\u03c2 \u03cc\u03c3\u03bf\u03bd \u03b1\u03c6\u03bf\u03c1\u03ac \u03c3\u03c4\u03b7\u03bd \u03ad\u03be\u03bf\u03b4\u03bf \u03b1\u03c0\u03cc \u03c4\u03b7\u03bd \u03bf\u03b9\u03ba\u03bf\u03bd\u03bf\u03bc\u03b9\u03ba\u03ae \u03ba\u03c1\u03af\u03c3\u03b7 \u03ba\u03b1\u03b9 \u03c0\u03bf\u03b9\u03b1 \u03b2\u03bf\u03ae\u03b8\u03b5\u03b9\u03b1 \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03b4\u03ce\u03c3\u03b5\u03b9 \u03b7 \u03c5\u03b9\u03bf\u03b8\u03ad\u03c4\u03b7\u03c3\u03b7 \u03ba\u03b1\u03b9\u03bd\u03bf\u03c4\u03cc\u03bc\u03c9\u03bd \u03c4\u03b5\u03c7\u03bd\u03bf\u03bb\u03bf\u03b3\u03b9\u03ce\u03bd;<\/strong> <\/em><\/p>\n<p>\u038c\u03c3\u03bf \u03c0\u03b1\u03c1\u03b1\u03bc\u03ad\u03bd\u03bf\u03c5\u03bc\u03b5 \u03b4\u03b9\u03b1\u03c4\u03b5\u03b8\u03b5\u03b9\u03bc\u03ad\u03bd\u03bf\u03b9 \u03bd\u03b1 \u03ba\u03ac\u03bd\u03bf\u03c5\u03bc\u03b5 \u03c4\u03b7 \u03c3\u03ba\u03bb\u03b7\u03c1\u03ae \u03b4\u03bf\u03c5\u03bb\u03b5\u03b9\u03ac \u03c0\u03bf\u03c5 \u03b1\u03c0\u03b1\u03b9\u03c4\u03b5\u03af\u03c4\u03b1\u03b9 \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03be\u03b1\u03bd\u03b1\u03c7\u03c4\u03af\u03c3\u03bf\u03c5\u03bc\u03b5 \u03bc\u03b9\u03b1 \u03b1\u03be\u03b9\u03cc\u03c0\u03b9\u03c3\u03c4\u03b7, \u03c0\u03b1\u03c1\u03b1\u03b3\u03c9\u03b3\u03b9\u03ba\u03ae \u03bf\u03b9\u03ba\u03bf\u03bd\u03bf\u03bc\u03af\u03b1, \u03ba\u03ac\u03bd\u03bf\u03bd\u03c4\u03b1\u03c2 \u03c4\u03b1 \u03b1\u03c0\u03b1\u03c1\u03b1\u03af\u03c4\u03b7\u03c4\u03b1 \u03b3\u03b5\u03bd\u03bd\u03b1\u03af\u03b1 \u03b2\u03ae\u03bc\u03b1\u03c4\u03b1 \u03c0\u03c1\u03bf\u03c2 \u03c4\u03b1 \u03b5\u03bc\u03c0\u03c1\u03cc\u03c2, \u03bc\u03c0\u03bf\u03c1\u03bf\u03cd\u03bc\u03b5 \u03bd\u03b1 \u03c0\u03bf\u03cd\u03bc\u03b5 \u03c0\u03c9\u03c2 \u03b2\u03c1\u03b9\u03c3\u03ba\u03cc\u03bc\u03b1\u03c3\u03c4\u03b5 \u03c3\u03c4\u03b7 \u03c3\u03c9\u03c3\u03c4\u03ae \u03ba\u03b1\u03c4\u03b5\u03cd\u03b8\u03c5\u03bd\u03c3\u03b7. \u038c\u03bb\u03bf\u03b9 \u03c3\u03c4\u03b7\u03bd EMC \u03b5\u03af\u03bc\u03b1\u03c3\u03c4\u03b5 \u03b1\u03c0\u03bf\u03c6\u03b1\u03c3\u03b9\u03c3\u03bc\u03ad\u03bd\u03bf\u03b9 \u03bd\u03b1 \u03b4\u03ce\u03c3\u03bf\u03c5\u03bc\u03b5 \u03b1\u03c5\u03c4\u03ae \u03c4\u03b7 \u03bc\u03ac\u03c7\u03b7 \u03c3\u03c4\u03bf \u03c0\u03bb\u03b5\u03c5\u03c1\u03cc \u03c4\u03c9\u03bd \u03c3\u03c5\u03bd\u03b5\u03c1\u03b3\u03b1\u03c4\u03ce\u03bd \u03ba\u03b1\u03b9 \u03c4\u03c9\u03bd \u03c0\u03b5\u03bb\u03b1\u03c4\u03ce\u03bd \u03bc\u03b1\u03c2.<br \/>\n\u0395\u03be\u03ac\u03bb\u03bb\u03bf\u03c5, \u03c4\u03b1 \u03c0\u03c1\u03bf\u03ca\u03cc\u03bd\u03c4\u03b1 \u03ba\u03b1\u03b9 \u03bf\u03b9 \u03c5\u03c0\u03b7\u03c1\u03b5\u03c3\u03af\u03b5\u03c2 \u03c4\u03b7\u03c2 EMC \u03b1\u03c0\u03b5\u03c5\u03b8\u03cd\u03bd\u03bf\u03bd\u03c4\u03b1\u03b9 \u03bc\u03b5 \u03b1\u03c0\u03cc\u03bb\u03c5\u03c4\u03b7 \u03b5\u03c0\u03b9\u03c4\u03c5\u03c7\u03af\u03b1 \u03c3\u03b5 \u03ba\u03ac\u03c0\u03bf\u03b9\u03b1 \u03b1\u03c0\u03cc \u03c4\u03b1 \u03ba\u03c1\u03b9\u03c3\u03b9\u03bc\u03cc\u03c4\u03b5\u03c1\u03b1 \u03b6\u03b7\u03c4\u03ae\u03bc\u03b1\u03c4\u03b1 \u03c4\u03b7\u03c2 \u03b5\u03c0\u03bf\u03c7\u03ae\u03c2 \u03bc\u03b1\u03c2, \u03c4\u03cc\u03c3\u03bf \u03c3\u03c4\u03bf\u03bd \u03b9\u03b4\u03b9\u03c9\u03c4\u03b9\u03ba\u03cc \u03cc\u03c3\u03bf \u03ba\u03b1\u03b9 \u03c3\u03c4\u03bf \u03b4\u03b7\u03bc\u03cc\u03c3\u03b9\u03bf \u03c4\u03bf\u03bc\u03ad\u03b1. \u0388\u03bd\u03b1 \u03c0\u03bf\u03bb\u03cd \u03ba\u03b1\u03bb\u03cc \u03c0\u03b1\u03c1\u03ac\u03b4\u03b5\u03b9\u03b3\u03bc\u03b1 \u03b3\u03b9\u2019 \u03b1\u03c5\u03c4\u03cc, \u03b5\u03af\u03bd\u03b1\u03b9 \u03b7 \u03c0\u03c1\u03cc\u03c3\u03c6\u03b1\u03c4\u03b7 \u03c3\u03c4\u03c1\u03bf\u03c6\u03ae \u03c4\u03b7\u03c2 \u0391\u03bc\u03b5\u03c1\u03b9\u03ba\u03b1\u03bd\u03b9\u03ba\u03ae\u03c2 \u03ba\u03c5\u03b2\u03ad\u03c1\u03bd\u03b7\u03c3\u03b7\u03c2 \u03c0\u03c1\u03bf\u03c2 \u03c4\u03bf Cloud \u03b3\u03b9\u03b1 \u03bb\u03cc\u03b3\u03bf\u03c5\u03c2 \u03b5\u03be\u03bf\u03b9\u03ba\u03bf\u03bd\u03cc\u03bc\u03b7\u03c3\u03b7\u03c2 \u03ba\u03cc\u03c3\u03c4\u03bf\u03c5\u03c2. \u038c\u03c0\u03c9\u03c2 \u03b4\u03ae\u03bb\u03c9\u03c3\u03b1\u03bd \u03ba\u03b1\u03b9 \u03bf\u03b9 \u03af\u03b4\u03b9\u03bf\u03b9: \u00ab\u039f\u03b9 \u03bd\u03ad\u03b5\u03c2 \u03c4\u03b5\u03c7\u03bd\u03bf\u03bb\u03bf\u03b3\u03af\u03b5\u03c2 \u03b2\u03b5\u03bb\u03c4\u03b9\u03ce\u03bd\u03bf\u03c5\u03bd \u03c4\u03bf \u03b5\u03c0\u03af\u03c0\u03b5\u03b4\u03bf \u03c4\u03c9\u03bd \u03c0\u03b1\u03c1\u03b5\u03c7\u03cc\u03bc\u03b5\u03bd\u03c9\u03bd \u03ba\u03c5\u03b2\u03b5\u03c1\u03bd\u03b7\u03c4\u03b9\u03ba\u03ce\u03bd \u03c5\u03c0\u03b7\u03c1\u03b5\u03c3\u03b9\u03ce\u03bd \u03ba\u03b1\u03b9 \u03b2\u03bf\u03b7\u03b8\u03bf\u03cd\u03bd \u03c3\u03c4\u03b7 \u03bc\u03b5\u03af\u03c9\u03c3\u03b7 \u03ba\u03cc\u03c3\u03c4\u03bf\u03c2 \u03c3\u03b5 \u03b1\u03c5\u03c4\u03ad\u03c2 \u03c4\u03b9\u03c2 \u03b5\u03c0\u03bf\u03c7\u03ad\u03c2 \u03b1\u03bd\u03b1\u03b3\u03ba\u03b1\u03af\u03b1\u03c2 \u03bb\u03b9\u03c4\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2\u00bb. \u039d\u03bf\u03bc\u03af\u03b6\u03c9 \u03c0\u03c9\u03c2 \u03bc\u03af\u03b1 \u03c0\u03b1\u03c1\u03cc\u03bc\u03bf\u03b9\u03b1 \u03bb\u03bf\u03b3\u03b9\u03ba\u03ae 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