{"id":3444,"date":"2012-05-04T14:06:43","date_gmt":"2012-05-04T12:06:43","guid":{"rendered":"http:\/\/dev.ds.unipi.gr\/msc1\/?p=3444"},"modified":"2016-02-26T14:13:59","modified_gmt":"2016-02-26T12:13:59","slug":"cloud-computing-2","status":"publish","type":"post","link":"https:\/\/masters.ds.unipi.gr\/elearning\/cloud-computing-2\/","title":{"rendered":"\u039d\u03b5\u03c6\u03bf\u03cb\u03c0\u03bf\u03bb\u03bf\u03b3\u03b9\u03c3\u03c4\u03b9\u03ba\u03ae"},"content":{"rendered":"<h3>\u03a3\u03c4\u03cc\u03c7\u03bf\u03c2<\/h3>\n<p style=\"text-align: justify;\">\u03a4\u03b1 \u03c5\u03c0\u03bf\u03bb\u03bf\u03b3\u03b9\u03c3\u03c4\u03b9\u03ba\u03ac \u03bd\u03ad\u03c6\u03b7 (cloud computing) \u03b1\u03c0\u03bf\u03c4\u03b5\u03bb\u03bf\u03cd\u03bd \u03c4\u03bf \u03b5\u03c0\u03cc\u03bc\u03b5\u03bd\u03bf \u03c3\u03c4\u03ac\u03b4\u03b9\u03bf \u03c3\u03c4\u03b7\u03bd \u03b5\u03be\u03ad\u03bb\u03b9\u03be\u03b7 \u03c4\u03bf\u03c5 \u03b4\u03b9\u03b1\u03b4\u03b9\u03ba\u03c4\u03cd\u03bf\u03c5 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\u03bd\u03ad\u03c6\u03b7:<\/strong> \u03bf\u03c1\u03b9\u03c3\u03bc\u03cc\u03c2, \u03c3\u03c4\u03cc\u03c7\u03bf\u03b9, \u03c0\u03c1\u03bf\u03ba\u03bb\u03ae\u03c3\u03b5\u03b9\u03c2, \u03c4\u03bf\u03bc\u03b5\u03af\u03c2 \u03b5\u03c6\u03b1\u03c1\u03bc\u03bf\u03b3\u03ae\u03c2, \u03cc\u03c1\u03bf\u03b9, \u03c3\u03c5\u03bc\u03b2\u03cc\u03bb\u03b1\u03b9\u03b1 \u03c0\u03b1\u03c1\u03bf\u03c7\u03ae\u03c2 \u03c5\u03c0\u03b7\u03c1\u03b5\u03c3\u03b9\u03ce\u03bd, \u03c6\u03ac\u03c3\u03b5\u03b9\u03c2 \u03b5\u03ba\u03c4\u03ad\u03bb\u03b5\u03c3\u03b7\u03c2 \u03b5\u03c1\u03b3\u03b1\u03c3\u03b9\u03ce\u03bd \u03ba\u03b1\u03b9 \u03c5\u03c0\u03b7\u03c1\u03b5\u03c3\u03b9\u03ce\u03bd, \u03b4\u03b9\u03b1\u03ba\u03c1\u03b9\u03c4\u03ac \u03b5\u03c0\u03af\u03c0\u03b5\u03b4\u03b1 \u03b2\u03ac\u03c3\u03b5\u03b9 \u03c4\u03bf\u03c5 \u03bc\u03bf\u03bd\u03c4\u03ad\u03bb\u03bf\u03c5 Software-Platform-Infrastructure (SPI), \u03b1\u03c1\u03c7\u03b9\u03c4\u03b5\u03ba\u03c4\u03bf\u03bd\u03b9\u03ba\u03ae \u03c3\u03c7\u03b5\u03b4\u03af\u03b1\u03c3\u03b7, \u03b1\u03c1\u03c7\u03b9\u03c4\u03b5\u03ba\u03c4\u03bf\u03bd\u03b9\u03ba\u03ae \u03b1\u03bd\u03bf\u03b9\u03c7\u03c4\u03ce\u03bd \u03c5\u03c0\u03b7\u03c1\u03b5\u03c3\u03b9\u03ce\u03bd, \u03c5\u03c0\u03b7\u03c1\u03b5\u03c3\u03b9\u03bf\u03c3\u03c4\u03c1\u03b5\u03c6\u03ae\u03c2 \u03b1\u03c1\u03c7\u03b9\u03c4\u03b5\u03ba\u03c4\u03bf\u03bd\u03b9\u03ba\u03ae, \u03b1\u03c1\u03c7\u03b9\u03c4\u03b5\u03ba\u03c4\u03bf\u03bd\u03b9\u03ba\u03ae \u03b5\u03c0\u03cc\u03bc\u03b5\u03bd\u03b7\u03c2 \u03b3\u03b5\u03bd\u03b9\u03ac\u03c2, \u03ba\u03b1\u03c4\u03b7\u03b3\u03bf\u03c1\u03af\u03b5\u03c2 \u03b5\u03b9\u03ba\u03bf\u03bd\u03b9\u03ba\u03bf\u03c0\u03bf\u03af\u03b7\u03c3\u03b7\u03c2 (\u03ad\u03bc\u03c6\u03c5\u03c4\u03b7 &#8211; native, \u03c5\u03bb\u03b9\u03c3\u03bc\u03b9\u03ba\u03bf\u03cd &#8211; hardware, \u03b5\u03c0\u03b9\u03c0\u03ad\u03b4\u03bf\u03c5 \u03bb\u03b5\u03b9\u03c4\u03bf\u03c5\u03c1\u03b3\u03b9\u03ba\u03bf\u03cd \u03c3\u03c5\u03c3\u03c4\u03ae\u03bc\u03b1\u03c4\u03bf\u03c2 &#8211; OS-level, \u03b5\u03c0\u03b9\u03c0\u03ad\u03b4\u03bf\u03c5 \u03b5\u03c6\u03b1\u03c1\u03bc\u03bf\u03b3\u03ae\u03c2), hypervisors (Kernel-based Virtual Machine &#8211; KVM, Xen), \u03c3\u03c5\u03bc\u03b2\u03cc\u03bb\u03b1\u03b9\u03b1 \u03c0\u03b1\u03c1\u03bf\u03c7\u03ae\u03c2 \u03c5\u03c0\u03b7\u03c1\u03b5\u03c3\u03b9\u03ce\u03bd, \u03c4\u03b5\u03c7\u03bd\u03b9\u03ba\u03ad\u03c2 \u03b1\u03c0\u03cc\u03b4\u03bf\u03c3\u03b7\u03c2 \u03ba\u03b1\u03b9 \u03b5\u03c0\u03bf\u03c0\u03c4\u03b5\u03af\u03b1\u03c2 \u03c6\u03c5\u03c3\u03b9\u03ba\u03ce\u03bd \u03ba\u03b1\u03b9 \u03b5\u03b9\u03ba\u03bf\u03bd\u03b9\u03ba\u03ce\u03bd \u03c0\u03cc\u03c1\u03c9\u03bd.<\/li>\n<li><strong> \u0395\u03c0\u03af\u03c0\u03b5\u03b4\u03bf Platform as a Service \u03ba\u03b1\u03b9 \u03b5\u03c0\u03af\u03c0\u03b5\u03b4\u03bf Software as a Service:<\/strong> \u03b4\u03b9\u03b1\u03c0\u03c1\u03b1\u03b3\u03bc\u03ac\u03c4\u03b5\u03c5\u03c3\u03b7 \u03c3\u03c5\u03bc\u03b2\u03bf\u03bb\u03b1\u03af\u03c9\u03bd \u03c0\u03b1\u03c1\u03bf\u03c7\u03ae\u03c2 \u03c5\u03c0\u03b7\u03c1\u03b5\u03c3\u03b9\u03ce\u03bd, \u03ba\u03b1\u03c4\u03ac\u03bb\u03bf\u03b3\u03bf\u03b9 \u03c5\u03c0\u03b7\u03c1\u03b5\u03c3\u03b9\u03ce\u03bd (UDDI, UBR, ebXML) \u03ba\u03b1\u03b9 \u03bc\u03b7\u03c7\u03b1\u03bd\u03b9\u03c3\u03bc\u03bf\u03af \u03b5\u03cd\u03c1\u03b5\u03c3\u03b7\u03c2, \u03b5\u03c0\u03b9\u03bb\u03bf\u03b3\u03ae \u03ba\u03cc\u03bc\u03b2\u03c9\u03bd, \u03b5\u03ba\u03c4\u03ad\u03bb\u03b5\u03c3\u03b7, \u03b5\u03c0\u03bf\u03c0\u03c4\u03b5\u03af\u03b1, \u03b1\u03c0\u03bf\u03c4\u03af\u03bc\u03b7\u03c3\u03b7 \u03ba\u03b1\u03b9 \u03ba\u03bf\u03c3\u03c4\u03bf\u03bb\u03cc\u03b3\u03b7\u03c3\u03b7, \u03b4\u03b9\u03b1\u03c7\u03b5\u03af\u03c1\u03b9\u03c3\u03b7 \u03c1\u03bf\u03ce\u03bd \u03b5\u03c1\u03b3\u03b1\u03c3\u03af\u03b1\u03c2, wrappers \u03b3\u03b9\u03b1 \u03c4\u03bf\u03bd \u03ad\u03bb\u03b5\u03b3\u03c7\u03bf, \u03c4\u03b7\u03bd \u03b5\u03c0\u03bf\u03c0\u03c4\u03b5\u03af\u03b1 \u03ba\u03b1\u03b9 \u03c4\u03b7 \u03b4\u03b9\u03b1\u03bc\u03cc\u03c1\u03c6\u03c9\u03c3\u03b7 \u03c4\u03c9\u03bd \u03b5\u03c6\u03b1\u03c1\u03bc\u03bf\u03b3\u03ce\u03bd, \u03bc\u03b5\u03b8\u03bf\u03b4\u03bf\u03bb\u03bf\u03b3\u03af\u03b1 \u03bc\u03bf\u03bd\u03c4\u03b5\u03bb\u03bf\u03c0\u03bf\u03af\u03b7\u03c3\u03b7\u03c2 \u03ba\u03b1\u03b9 \u03b1\u03bd\u03ac\u03c0\u03c4\u03c5\u03be\u03b7\u03c2 \u03b5\u03c6\u03b1\u03c1\u03bc\u03bf\u03b3\u03ce\u03bd.<\/li>\n<li><strong> \u0395\u03c1\u03b3\u03b1\u03c3\u03c4\u03ae\u03c1\u03b9\u03bf 1 (\u03b5\u03c0\u03af\u03c0\u03b5\u03b4\u03bf Platform as a Service):<\/strong> \u03c0\u03c1\u03bf\u03b3\u03c1\u03b1\u03bc\u03bc\u03b1\u03c4\u03b9\u03c3\u03bc\u03cc\u03c2, \u03c0\u03b1\u03c1\u03b1\u03bc\u03b5\u03c4\u03c1\u03bf\u03c0\u03bf\u03af\u03b7\u03c3\u03b7 \u03ba\u03b1\u03b9 \u03b5\u03ba\u03c4\u03ad\u03bb\u03b5\u03c3\u03b7 \u03b5\u03c6\u03b1\u03c1\u03bc\u03bf\u03b3\u03ce\u03bd \u03c3\u03c4\u03bf \u03c5\u03c0\u03bf\u03bb\u03bf\u03b3\u03b9\u03c3\u03c4\u03b9\u03ba\u03ce\u03bd \u03bd\u03ad\u03c6\u03bf\u03c2 \u03c4\u03b7\u03c2 Google \u03bc\u03b5 \u03c7\u03c1\u03ae\u03c3\u03b7 \u03c4\u03b7\u03c2 \u03c0\u03bb\u03b1\u03c4\u03c6\u03cc\u03c1\u03bc\u03b1\u03c2 Google AppEngine.<\/li>\n<li><strong> \u0395\u03c0\u03af\u03c0\u03b5\u03b4\u03bf Infrastructure as a Service:<\/strong> \u03b4\u03b9\u03b1\u03c7\u03b5\u03af\u03c1\u03b9\u03c3\u03b7 \u03b4\u03b9\u03ba\u03c4\u03c5\u03b1\u03ba\u03ae\u03c2 \u03c5\u03c0\u03bf\u03b4\u03bf\u03bc\u03ae\u03c2 \u03c5\u03c0\u03bf\u03bb\u03bf\u03b3\u03b9\u03c3\u03c4\u03b9\u03ba\u03ce\u03bd \u03bd\u03b5\u03c6\u03ce\u03bd, \u03b8\u03ad\u03bc\u03b1\u03c4\u03b1 \u03b4\u03b9\u03b1\u03c7\u03b5\u03af\u03c1\u03b9\u03c3\u03b7\u03c2 \u03b5\u03bd\u03ad\u03c1\u03b3\u03b5\u03b9\u03b1\u03c2, \u03b1\u03c0\u03cc\u03b4\u03bf\u03c3\u03b7\u03c2, \u03c3\u03c5\u03bd\u03b4\u03b5\u03c3\u03b9\u03bc\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2, \u03b4\u03c1\u03bf\u03bc\u03bf\u03bb\u03cc\u03b3\u03b7\u03c3\u03b7\u03c2, \u03b4\u03b9\u03b1\u03c7\u03b5\u03af\u03c1\u03b9\u03c3\u03b7\u03c2 \u03ba\u03c5\u03ba\u03bb\u03bf\u03c6\u03bf\u03c1\u03af\u03b1\u03c2, \u03c0\u03bf\u03bb\u03b9\u03c4\u03b9\u03ba\u03ce\u03bd \u03b1\u03c3\u03c6\u03b1\u03bb\u03b5\u03af\u03b1\u03c2 \u03ba\u03b1\u03b9 \u03c3\u03c5\u03c3\u03c4\u03ae\u03bc\u03b1\u03c4\u03b1 \u03c0\u03b1\u03c1\u03b1\u03ba\u03bf\u03bb\u03bf\u03cd\u03b8\u03b7\u03c3\u03b7\u03c2 \u03c5\u03c0\u03bf\u03bb\u03bf\u03b3\u03b9\u03c3\u03c4\u03b9\u03ba\u03ce\u03bd \u03bd\u03b5\u03c6\u03ce\u03bd, \u03c0\u03b5\u03c1\u03b9\u03c0\u03c4\u03ce\u03c3\u03b5\u03b9\u03c2 \u03c7\u03c1\u03ae\u03c3\u03b7\u03c2: \u03c0\u03b1\u03c1\u03b1\u03b4\u03b5\u03af\u03b3\u03bc\u03b1\u03c4\u03b1 \u03bc\u03ad\u03c3\u03c9 \u03c7\u03c1\u03ae\u03c3\u03b7\u03c2 \u03b1\u03bd\u03bf\u03b9\u03ba\u03c4\u03bf\u03cd \u03bb\u03bf\u03b3\u03b9\u03c3\u03bc\u03b9\u03ba\u03bf\u03cd (Nagios), \u03b5\u03c0\u03b5\u03ba\u03c4\u03ac\u03c3\u03b5\u03b9\u03c2 MIBs \u03b3\u03b9\u03b1 \u03b4\u03b9\u03b1\u03c7\u03b5\u03af\u03c1\u03b9\u03c3\u03b7 \u03bc\u03ad\u03c3\u03c9 SNMP, \u03c4\u03bf \u03c3\u03cd\u03c3\u03c4\u03b7\u03bc\u03b1 Oceanos, Cloud Radio Access Networks, \u03b1\u03c1\u03c7\u03b9\u03c4\u03b5\u03ba\u03c4\u03bf\u03bd\u03b9\u03ba\u03ad\u03c2, \u03b1\u03bd\u03bf\u03b9\u03ba\u03c4\u03ad\u03c2 \u03b4\u03b9\u03b5\u03c0\u03b1\u03c6\u03ad\u03c2 \u03ba\u03b1\u03b9 \u03c0\u03c1\u03cc\u03c4\u03c5\u03c0\u03b1 (DMTF\/OCSI, OCCI), \u0397 \u03ad\u03bd\u03bd\u03bf\u03b9\u03b1 \u03c4\u03bf\u03c5 Network as a Service (NaaS), \u03c4\u03b5\u03c7\u03bd\u03bf\u03bb\u03bf\u03b3\u03af\u03b5\u03c2 Software Defined Networking (SDN) \u03ba\u03b1\u03b9 Openflow.<\/li>\n<li><strong> \u0395\u03c1\u03b3\u03b1\u03c3\u03c4\u03ae\u03c1\u03b9\u03bf 2 (\u03b5\u03c0\u03af\u03c0\u03b5\u03b4\u03bf Infrastructure as a Service):<\/strong> \u03c5\u03bb\u03bf\u03c0\u03bf\u03af\u03b7\u03c3\u03b7 (\u00ab\u03b4\u03b7\u03bc\u03b9\u03bf\u03c5\u03c1\u03b3\u03af\u03b1\u00bb) \u03c5\u03c0\u03bf\u03b4\u03bf\u03bc\u03ae\u03c2 \u03c5\u03c0\u03bf\u03bb\u03bf\u03b3\u03b9\u03c3\u03c4\u03b9\u03ba\u03bf\u03cd \u03bd\u03ad\u03c6\u03bf\u03c5\u03c2 \u03bc\u03b5 \u03c7\u03c1\u03ae\u03c3\u03b7 \u03c4\u03bf\u03c5 \u03b2\u03b1\u03c3\u03b9\u03ba\u03bf\u03cd \u03bc\u03b5\u03c3\u03bf\u03bb\u03bf\u03b3\u03b9\u03c3\u03bc\u03b9\u03ba\u03bf\u03cd OpenStack.<\/li>\n<li><strong> \u0395\u03c1\u03b3\u03b1\u03c3\u03c4\u03ae\u03c1\u03b9\u03bf 3 (\u03b5\u03c0\u03af\u03c0\u03b5\u03b4\u03bf Infrastructure as a Service):<\/strong> \u03c5\u03bb\u03bf\u03c0\u03bf\u03af\u03b7\u03c3\u03b7 (\u00ab\u03b4\u03b7\u03bc\u03b9\u03bf\u03c5\u03c1\u03b3\u03af\u03b1\u00bb) \u03c5\u03c0\u03bf\u03b4\u03bf\u03bc\u03ae\u03c2 \u03c5\u03c0\u03bf\u03bb\u03bf\u03b3\u03b9\u03c3\u03c4\u03b9\u03ba\u03bf\u03cd \u03bd\u03ad\u03c6\u03bf\u03c5\u03c2, \u03c0\u03b1\u03c1\u03b1\u03bc\u03b5\u03c4\u03c1\u03bf\u03c0\u03bf\u03af\u03b7\u03c3\u03b7 \u03c4\u03b7\u03c2 \u03b1\u03bd\u03b1\u03c6\u03bf\u03c1\u03b9\u03ba\u03ac \u03bc\u03b5 \u03c3\u03c5\u03bd\u03b8\u03ae\u03ba\u03b5\u03c2 \u03c0\u03c1\u03cc\u03c3\u03b2\u03b1\u03c3\u03b7\u03c2 (\u03c0\u03b9\u03c3\u03c4\u03bf\u03c0\u03bf\u03b9\u03b7\u03c4\u03b9\u03ba\u03ac, \u03c4\u03b5\u03c1\u03bc\u03b1\u03c4\u03b9\u03ba\u03ac \u03c3\u03b7\u03bc\u03b5\u03af\u03b1) \u03ba\u03b1\u03b9 \u03b4\u03b9\u03b1\u03c7\u03b5\u03af\u03c1\u03b9\u03c3\u03b7 \u03c3\u03c5\u03bc\u03b2\u03bf\u03bb\u03b1\u03af\u03c9\u03bd \u03c0\u03b1\u03c1\u03bf\u03c7\u03ae\u03c2 \u03c5\u03c0\u03b7\u03c1\u03b5\u03c3\u03b9\u03ce\u03bd.<\/li>\n<li><strong> \u03a4\u03b5\u03c7\u03bd\u03bf\u03bb\u03bf\u03b3\u03af\u03b5\u03c2 \u03b1\u03c0\u03bf\u03b8\u03b7\u03ba\u03b5\u03c5\u03c4\u03b9\u03ba\u03ce\u03bd \u03bd\u03b5\u03c6\u03ce\u03bd:<\/strong> \u0391\u03c1\u03c7\u03b9\u03c4\u03b5\u03ba\u03c4\u03bf\u03bd\u03b9\u03ba\u03ad\u03c2 \u03ba\u03b1\u03b9 \u03c3\u03c5\u03b3\u03ba\u03b5\u03ba\u03c1\u03b9\u03bc\u03ad\u03bd\u03b5\u03c2 \u03c0\u03c1\u03bf\u03c3\u03b5\u03b3\u03b3\u03af\u03c3\u03b5\u03b9\u03c2 (\u03b3\u03b9\u03b1 \u03b8\u03ad\u03bc\u03b1\u03c4\u03b1 \u03b5\u03c0\u03b5\u03ba\u03c4\u03b1\u03c3\u03b9\u03bc\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2, \u03c3\u03c5\u03bd\u03bf\u03c7\u03ae\u03c2 \u03c4\u03c9\u03bd \u03b4\u03b5\u03b4\u03bf\u03bc\u03ad\u03bd\u03c9\u03bd, \u03b4\u03b9\u03b1\u03c7\u03b5\u03af\u03c1\u03b9\u03c3\u03b7\u03c2 \u03c4\u03b7\u03c2 \u03bf\u03bd\u03bf\u03bc\u03b1\u03c4\u03bf\u03bb\u03bf\u03b3\u03af\u03b1\u03c2 &#8211; namespace, \u03b1\u03bd\u03b1\u03c0\u03b1\u03c1\u03b1\u03b3\u03c9\u03b3\u03ae\u03c2) \u03c3\u03b5 \u03ba\u03b1\u03c4\u03b1\u03bd\u03b5\u03bc\u03b7\u03bc\u03ad\u03bd\u03b1 \u03c3\u03c5\u03c3\u03c4\u03ae\u03bc\u03b1\u03c4\u03b1 \u03b1\u03c0\u03bf\u03b8\u03ae\u03ba\u03b5\u03c5\u03c3\u03b7\u03c2 \u03b1\u03bd\u03c4\u03b9\u03ba\u03b5\u03b9\u03bc\u03ad\u03bd\u03c9\u03bd (\u03bfbjects) \u03b4\u03b5\u03b4\u03bf\u03bc\u03ad\u03bd\u03c9\u03bd: EMC Atmos, Rackspace Cloud Files, Windows Azure Storage, Google Storage, Amazon S3. \u00ab\u03a5\u03c0\u03bf\u03bb\u03bf\u03b3\u03b9\u03c3\u03c4\u03b9\u03ba\u03ae\u00bb \u03b1\u03c0\u03bf\u03b8\u03ae\u03ba\u03b5\u03c5\u03c3\u03b7: \u039c\u03bf\u03bd\u03c4\u03ad\u03bb\u03bf \u03b3\u03b9\u03b1 \u03c4\u03bf\u03bd \u03ba\u03b1\u03b8\u03bf\u03c1\u03b9\u03c3\u03bc\u03cc \u03c4\u03bf\u03c5 \u03c5\u03c0\u03bf\u03bb\u03bf\u03b3\u03b9\u03c3\u03bc\u03bf\u03cd, \u03c4\u03c9\u03bd \u03b4\u03b5\u03b4\u03bf\u03bc\u03ad\u03bd\u03c9\u03bd, \u03c4\u03c9\u03bd \u03c0\u03b5\u03c1\u03b9\u03bf\u03c1\u03b9\u03c3\u03bc\u03ce\u03bd \u03b5\u03ba\u03c4\u03ad\u03bb\u03b5\u03c3\u03b7\u03c2, \u03c4\u03c9\u03bd \u03c3\u03c5\u03bd\u03b8\u03b7\u03ba\u03ce\u03bd \u03b5\u03bd\u03b5\u03c1\u03b3\u03bf\u03c0\u03bf\u03af\u03b7\u03c3\u03b7\u03c2 \u03ba\u03b1\u03b9 \u03c4\u03b7\u03c2 \u03b1\u03bb\u03bb\u03b7\u03bb\u03b5\u03c0\u03af\u03b4\u03c1\u03b1\u03c3\u03b7\u03c2 \u03bc\u03b5 \u03ac\u03bb\u03bb\u03b1 \u03b4\u03b5\u03b4\u03bf\u03bc\u03ad\u03bd\u03b1 \u03ba\u03b1\u03b9 \u03c5\u03c0\u03b7\u03c1\u03b5\u03c3\u03af\u03b5\u03c2. \u03a0\u03c1\u03cc\u03c3\u03b2\u03b1\u03c3\u03b7 \u03c3\u03b5 \u03b1\u03c0\u03bf\u03b8\u03b7\u03ba\u03b5\u03c5\u03bc\u03ad\u03bd\u03b1 \u03b1\u03bd\u03c4\u03b9\u03ba\u03b5\u03af\u03bc\u03b5\u03bd\u03b1 \u03b2\u03ac\u03c3\u03b5\u03b9 \u03c0\u03b5\u03c1\u03b9\u03b5\u03c7\u03bf\u03bc\u03ad\u03bd\u03bf\u03c5: \u03a4\u03b5\u03c7\u03bd\u03b9\u03ba\u03ad\u03c2 \u03b5\u03c0\u03b9\u03c3\u03cd\u03bd\u03b1\u03c8\u03b7\u03c2 \u03bc\u03b5\u03c4\u03b1\u03b4\u03b5\u03b4\u03bf\u03bc\u03ad\u03bd\u03c9\u03bd \u03c3\u03c4\u03b1 \u03b1\u03c0\u03bf\u03b8\u03b7\u03ba\u03b5\u03c5\u03bc\u03ad\u03bd\u03b1 \u03b4\u03b5\u03b4\u03bf\u03bc\u03ad\u03bd\u03b1 \u03ba\u03b1\u03b9 \u03b4\u03b7\u03bc\u03b9\u03bf\u03c5\u03c1\u03b3\u03af\u03b1\u03c2 \u03b4\u03b9\u03ba\u03c4\u03cd\u03c9\u03bd \u03c0\u03b5\u03c1\u03b9\u03b5\u03c7\u03bf\u03bc\u03ad\u03bd\u03bf\u03c5 (\u03bc\u03ad\u03c3\u03c9 \u03c3\u03c5\u03c3\u03c7\u03b5\u03c4\u03af\u03c3\u03b5\u03c9\u03bd), \u03bc\u03ad\u03b8\u03bf\u03b4\u03bf\u03b9 \u03b1\u03bd\u03ac\u03ba\u03c4\u03b7\u03c3\u03b7\u03c2 \u03b4\u03b5\u03b4\u03bf\u03bc\u03ad\u03bd\u03c9\u03bd.<\/li>\n<li><strong> \u0395\u03c1\u03b3\u03b1\u03c3\u03c4\u03ae\u03c1\u03b9\u03bf 4 (\u03b1\u03c0\u03bf\u03b8\u03b7\u03ba\u03b5\u03c5\u03c4\u03b9\u03ba\u03ac \u03bd\u03ad\u03c6\u03b7):<\/strong> \u03c5\u03bb\u03bf\u03c0\u03bf\u03af\u03b7\u03c3\u03b7 (\u00ab\u03b4\u03b7\u03bc\u03b9\u03bf\u03c5\u03c1\u03b3\u03af\u03b1\u00bb) \u03c5\u03c0\u03bf\u03b4\u03bf\u03bc\u03ae\u03c2 \u03b1\u03c0\u03bf\u03b8\u03b7\u03ba\u03b5\u03c5\u03c4\u03b9\u03ba\u03bf\u03cd \u03bd\u03ad\u03c6\u03bf\u03c5\u03c2 \u03bc\u03b5 \u03c7\u03c1\u03ae\u03c3\u03b7 OpenStack Swift, \u03b5\u03ba\u03c4\u03ad\u03bb\u03b5\u03c3\u03b7 \u03b5\u03c1\u03b3\u03b1\u03c3\u03b9\u03ce\u03bd MapReduce \u03c3\u03b5 \u03c0\u03b5\u03c1\u03b9\u03b2\u03ac\u03bb\u03bb\u03bf\u03bd Apache Hadoop.<\/li>\n<li><strong> \u03a5\u03c0\u03bf\u03bb\u03bf\u03b3\u03b9\u03c3\u03c4\u03b9\u03ba\u03ac \u03bd\u03ad\u03c6\u03b7 \u03c0\u03c1\u03b1\u03b3\u03bc\u03b1\u03c4\u03b9\u03ba\u03bf\u03cd \u03c7\u03c1\u03cc\u03bd\u03bf\u03c5:<\/strong> \u03c0\u03c1\u03bf\u03c4\u03b5\u03c1\u03b1\u03b9\u03cc\u03c4\u03b7\u03c4\u03b5\u03c2, \u03c7\u03c1\u03bf\u03bd\u03b9\u03ba\u03bf\u03af \u03c0\u03b5\u03c1\u03b9\u03bf\u03c1\u03b9\u03c3\u03bc\u03bf\u03af, \u03b1\u03c1\u03c7\u03b9\u03c4\u03b5\u03ba\u03c4\u03bf\u03bd\u03b9\u03ba\u03ae \u03c0\u03c1\u03b1\u03b3\u03bc\u03b1\u03c4\u03b9\u03ba\u03bf\u03cd \u03c7\u03c1\u03cc\u03bd\u03bf\u03c5, \u03bc\u03bf\u03bd\u03c4\u03ad\u03bb\u03b1 \u03c3\u03cd\u03bd\u03b8\u03b5\u03c3\u03b7\u03c2 \u03c5\u03c0\u03b7\u03c1\u03b5\u03c3\u03b9\u03ce\u03bd, \u03b5\u03c4\u03b5\u03c1\u03bf\u03b3\u03ad\u03bd\u03b5\u03b9\u03b1, \u03ba\u03bb\u03b9\u03bc\u03ac\u03ba\u03c9\u03c3\u03b7, \u03c4\u03b5\u03c7\u03bd\u03b9\u03ba\u03ad\u03c2 \u03b1\u03c0\u03b5\u03b9\u03ba\u03cc\u03bd\u03b9\u03c3\u03b7\u03c2 \u03b4\u03c5\u03bd\u03b1\u03bc\u03b9\u03ba\u03ce\u03bd \u03c1\u03bf\u03ce\u03bd \u03b5\u03c1\u03b3\u03b1\u03c3\u03af\u03b1\u03c2, \u03b4\u03b9\u03b1\u03c3\u03c6\u03ac\u03bb\u03b9\u03c3\u03b7 \u03c0\u03bf\u03b9\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2 \u03c3\u03b5 \u03c5\u03c0\u03bf\u03bb\u03bf\u03b3\u03b9\u03c3\u03c4\u03b9\u03ba\u03ac \u03bd\u03ad\u03c6\u03b7, \u03ba\u03b1\u03c4\u03b7\u03b3\u03bf\u03c1\u03af\u03b5\u03c2 \u03c0\u03b1\u03c1\u03b1\u03bc\u03ad\u03c4\u03c1\u03c9\u03bd \u03ba\u03b1\u03b9 \u03b1\u03c0\u03b1\u03b9\u03c4\u03ae\u03c3\u03b5\u03c9\u03bd, \u03c4\u03b5\u03c7\u03bd\u03b9\u03ba\u03ad\u03c2 \u03b1\u03bd\u03bf\u03c7\u03ae\u03c2 \u03c3\u03b5 \u03c3\u03c6\u03ac\u03bb\u03bc\u03b1\u03c4\u03b1, \u03bc\u03bf\u03bd\u03c4\u03ad\u03bb\u03bf SNAP, \u03c0\u03c1\u03bf\u03c3\u03b5\u03b3\u03b3\u03af\u03c3\u03b5\u03b9\u03c2 VAS &#8211; GARA.<\/li>\n<li><strong> \u03a5\u03c0\u03bf\u03b4\u03bf\u03bc\u03ad\u03c2 \u03bc\u03b5\u03bb\u03bb\u03bf\u03bd\u03c4\u03b9\u03ba\u03bf\u03cd \u03b4\u03b9\u03b1\u03b4\u03b9\u03ba\u03c4\u03cd\u03bf\u03c5:<\/strong> \u0394\u03b9\u03b1\u03c3\u03cd\u03bd\u03b4\u03b5\u03c3\u03b7 \u03c5\u03c0\u03bf\u03bb\u03bf\u03b3\u03b9\u03c3\u03c4\u03b9\u03ba\u03ce\u03bd \u03bd\u03b5\u03c6\u03ce\u03bd \u03bc\u03b5 \u03b4\u03b9\u03b1\u03b4\u03af\u03ba\u03c4\u03c5\u03b1 \u03b1\u03bd\u03c4\u03b9\u03ba\u03b5\u03b9\u03bc\u03ad\u03bd\u03c9\u03bd, \u03c3\u03cd\u03b3\u03c7\u03c1\u03bf\u03bd\u03b5\u03c2 \u03b5\u03c6\u03b1\u03c1\u03bc\u03bf\u03b3\u03ad\u03c2 \u03ba\u03b1\u03b9 \u03c0\u03bb\u03b1\u03c4\u03c6\u03cc\u03c1\u03bc\u03b5\u03c2 \u03c5\u03c0\u03bf\u03bb\u03bf\u03b3\u03b9\u03c3\u03c4\u03b9\u03ba\u03ce\u03bd \u03bd\u03b5\u03c6\u03ce\u03bd, \u03b1\u03bd\u03bf\u03b9\u03c7\u03c4\u03ac \u03b5\u03c1\u03b5\u03c5\u03bd\u03b7\u03c4\u03b9\u03ba\u03ac \u03b8\u03ad\u03bc\u03b1\u03c4\u03b1 \u03ba\u03b1\u03b9 \u03c0\u03c1\u03b1\u03ba\u03c4\u03b9\u03ba\u03ad\u03c2 \u03bc\u03b5\u03b3\u03ac\u03bb\u03c9\u03bd \u03b5\u03c4\u03b1\u03b9\u03c1\u03b9\u03ce\u03bd \u03c4\u03bf\u03c5 \u03c7\u03ce\u03c1\u03bf\u03c5. \u0395\u03c6\u03b1\u03c1\u03bc\u03bf\u03b3\u03ad\u03c2 \u03b5\u03c0\u03b1\u03c5\u03be\u03b7\u03bc\u03ad\u03bd\u03b7\u03c2 \u03c0\u03c1\u03b1\u03b3\u03bc\u03b1\u03c4\u03b9\u03ba\u03cc\u03c4\u03b7\u03c4\u03b1 \u03bc\u03b5 \u03c4\u03c1\u03b9\u03c3\u03b4\u03b9\u03ac\u03c3\u03c4\u03b1\u03c4\u03b7 \u03b1\u03bd\u03b1\u03c0\u03b1\u03c1\u03ac\u03c3\u03c4\u03b1\u03c3\u03b7 \u03c0\u03b5\u03c1\u03b9\u03b2\u03ac\u03bb\u03bb\u03bf\u03bd\u03c4\u03bf\u03c2, \u03b4\u03b7\u03bc\u03bf\u03c3\u03b9\u03bf\u03b3\u03c1\u03b1\u03c6\u03af\u03b1 \u03b2\u03ac\u03c3\u03b5\u03b9 \u03b4\u03b5\u03b4\u03bf\u03bc\u03ad\u03bd\u03c9\u03bd, \u03c5\u03c0\u03b7\u03c1\u03b5\u03c3\u03af\u03b5\u03c2 \u03ad\u03be\u03c5\u03c0\u03bd\u03c9\u03bd \u03c0\u03cc\u03bb\u03b5\u03c9\u03bd. \u0394\u03b9\u03b1\u03b8\u03ad\u03c3\u03b9\u03bc\u03b5\u03c2 \u03c0\u03bb\u03b1\u03c4\u03c6\u03cc\u03c1\u03bc\u03b5\u03c2 \u03c5\u03c0\u03bf\u03bb\u03bf\u03b3\u03b9\u03c3\u03c4\u03b9\u03ba\u03ce\u03bd \u03bd\u03b5\u03c6\u03ce\u03bd (\u03b1\u03c1\u03c7\u03b9\u03c4\u03b5\u03ba\u03c4\u03bf\u03bd\u03b9\u03ba\u03ae, \u03c5\u03c0\u03b7\u03c1\u03b5\u03c3\u03af\u03b5\u03c2 \u03ba\u03b1\u03b9 \u03c3\u03cd\u03b3\u03ba\u03c1\u03b9\u03c3\u03b7 \u03b1\u03c5\u03c4\u03ce\u03bd). \u03a0\u03c1\u03bf\u03ba\u03bb\u03ae\u03c3\u03b5\u03b9\u03c2, \u03b1\u03bd\u03bf\u03b9\u03c7\u03c4\u03ac \u03b5\u03c1\u03b5\u03c5\u03bd\u03b7\u03c4\u03b9\u03ba\u03ac \u03b8\u03ad\u03bc\u03b1\u03c4\u03b1 \u03ba\u03b1\u03b9 \u03c0\u03c1\u03b1\u03ba\u03c4\u03b9\u03ba\u03ad\u03c2 \u03bc\u03b5\u03b3\u03ac\u03bb\u03c9\u03bd \u03b5\u03c4\u03b1\u03b9\u03c1\u03b9\u03ce\u03bd \u03c4\u03bf\u03c5 \u03c7\u03ce\u03c1\u03bf\u03c5.<\/li>\n<\/ul>\n<p><!--more--><\/p>\n<ul>\n<li>David Linthicum, (2009): Cloud Computing and SOA Convergence in Your Enterprise: A Step-by-Step Guide, Addison-Wesley Professional, New York, ISBN 0136009220.<\/li>\n<li>John Rhoton, (2010): Cloud Computing Explained: Implementation Handbook for Enterprises, Recursive Press, London, ISBN 9780956355607.<\/li>\n<li>George Reese, (2009): Cloud Application Architectures: Building Applications and Infrastructure in the Cloud. O\u2019Reily, Cambridge, UK, ISBN 0596156367.<\/li>\n<li>Tom White, (2010): Hadoop: The Definitive Guide, 2nd Edition. O\u2019Reilly Media\/Yahoo Press, ISBN 978-1-4493-8973-4.<\/li>\n<\/ul>\n<h3>\u03a0\u03c1\u03cc\u03c3\u03b8\u03b5\u03c4\u03b1 \u03a3\u03c5\u03b3\u03b3\u03c1\u03ac\u03bc\u03bc\u03b1\u03c4\u03b1<\/h3>\n<ul>\n<li>Eric Marks, Bob Lozano (2010): Executive\u2019s Guide to Cloud Computing, John Wiley &amp; Sons Inc., New York, ISBN: 0470521724.<\/li>\n<li>Barry Sosinsky, (2010): Cloud Computing Bible, Wiley, New York, ISBN: 0470903562.<\/li>\n<li>Jothy Rosenberg and Arthur Mateos (2010): The Cloud at Your Service, Manning Publications, London, ISBN-10: 1935182528.<\/li>\n<li>Chuck Lam, (2010): Hadoop in Action, Manning Publications, ISBN-10: 1935182196.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\u03a3\u03c4\u03cc\u03c7\u03bf\u03c2 \u03a4\u03b1 \u03c5\u03c0\u03bf\u03bb\u03bf\u03b3\u03b9\u03c3\u03c4\u03b9\u03ba\u03ac \u03bd\u03ad\u03c6\u03b7 (cloud computing) \u03b1\u03c0\u03bf\u03c4\u03b5\u03bb\u03bf\u03cd\u03bd \u03c4\u03bf \u03b5\u03c0\u03cc\u03bc\u03b5\u03bd\u03bf \u03c3\u03c4\u03ac\u03b4\u03b9\u03bf \u03c3\u03c4\u03b7\u03bd \u03b5\u03be\u03ad\u03bb\u03b9\u03be\u03b7 \u03c4\u03bf\u03c5 \u03b4\u03b9\u03b1\u03b4\u03b9\u03ba\u03c4\u03cd\u03bf\u03c5 \u03ba\u03b1\u03b9 \u03c4\u03c9\u03bd \u03c8\u03b7\u03c6\u03b9\u03b1\u03ba\u03ce\u03bd \u03c4\u03b5\u03c7\u03bd\u03bf\u03bb\u03bf\u03b3\u03b9\u03ce\u03bd \u03ba\u03b1\u03b9 \u03b5\u03b9\u03c3\u03ac\u03b3\u03bf\u03c5\u03bd \u03ad\u03bd\u03b1 \u03bd\u03ad\u03bf \u03c4\u03c1\u03cc\u03c0\u03bf \u03b4\u03b9\u03b1\u03bc\u03bf\u03b9\u03c1\u03b1\u03c3\u03bc\u03bf\u03cd \u03c4\u03c9\u03bd \u03c5\u03c0\u03bf\u03bb\u03bf\u03b3\u03b9\u03c3\u03c4\u03b9\u03ba\u03ce\u03bd \u03c0\u03cc\u03c1\u03c9\u03bd \u03ba\u03b1\u03b9 \u03cc\u03c7\u03b9 \u03bd\u03ad\u03b1 \u03c4\u03b5\u03c7\u03bd\u03bf\u03bb\u03bf\u03b3\u03af\u03b1. \u039f\u03b9 \u03b5\u03c6\u03b1\u03c1\u03bc\u03bf\u03b3\u03ad\u03c2 \u03ba\u03b1\u03b9 \u03b7 \u03c3\u03b7\u03bc\u03b1\u03c3\u03af\u03b1 \u03c4\u03c9\u03bd \u03c5\u03c0\u03bf\u03bb\u03bf\u03b3\u03b9\u03c3\u03c4\u03b9\u03ba\u03ce\u03bd \u03bd\u03b5\u03c6\u03ce\u03bd \u03b1\u03c5\u03be\u03ac\u03bd\u03bf\u03bd\u03c4\u03b1\u03b9 \u03bc\u03b5 \u03c1\u03b1\u03b3\u03b4\u03b1\u03af\u03bf \u03c1\u03c5\u03b8\u03bc\u03cc \u03c4\u03b1 \u03c4\u03b5\u03bb\u03b5\u03c5\u03c4\u03b1\u03af\u03b1 \u03c7\u03c1\u03cc\u03bd\u03b9\u03b1 \u03ba\u03b1\u03b9 \u03bf\u03b9 \u03b5\u03ba\u03c4\u03b9\u03bc\u03ae\u03c3\u03b5\u03b9\u03c2 \u03c4\u03c9\u03bd \u03b5\u03b9\u03b4\u03b9\u03ba\u03ce\u03bd \u03b1\u03bd\u03b1\u03c6\u03ad\u03c1\u03bf\u03c5\u03bd \u03cc\u03c4\u03b9 \u03c3\u03c4\u03b1 \u03b1\u03bc\u03ad\u03c3\u03c9\u03c2 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[111,142],"tags":[],"_links":{"self":[{"href":"https:\/\/masters.ds.unipi.gr\/elearning\/wp-json\/wp\/v2\/posts\/3444"}],"collection":[{"href":"https:\/\/masters.ds.unipi.gr\/elearning\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/masters.ds.unipi.gr\/elearning\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/masters.ds.unipi.gr\/elearning\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/masters.ds.unipi.gr\/elearning\/wp-json\/wp\/v2\/comments?post=3444"}],"version-history":[{"count":11,"href":"https:\/\/masters.ds.unipi.gr\/elearning\/wp-json\/wp\/v2\/posts\/3444\/revisions"}],"predecessor-version":[{"id":4529,"href":"https:\/\/masters.ds.unipi.gr\/elearning\/wp-json\/wp\/v2\/posts\/3444\/revisions\/4529"}],"wp:attachment":[{"href":"https:\/\/masters.ds.unipi.gr\/elearning\/wp-json\/wp\/v2\/media?parent=3444"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/masters.ds.unipi.gr\/elearning\/wp-json\/wp\/v2\/categories?post=3444"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/masters.ds.unipi.gr\/elearning\/wp-json\/wp\/v2\/tags?post=3444"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}