《云计算入门指南》.doc

Sun | 1Sun Sun | 2 .4? .5: .5 IT .6 .6: .7 .8 .9 .9 .9 .10 .10 .10 .11 .11 .12 (SaaS) .12 (PaaS) .12 (IaaS) .13 .13 .13 .14 .14 .14 .15 .15 .15 .16Sun .16 .16 .17Sun | 3 .17/ .18/ .18/ .18 .18 .18Sun .19 .19 .20 .21.22? 2009Sun Sun | 4 Web IT Sun Sun Java? Intercloud Sun Infiniband HPC (Petascale) Sun (Open Storage) Sun | 5? IT (Economist): ! 2008 10 23 : IT Pay by the Drink IT IT : IT : IT (Time to Service) IT IT 2011 40% IT . Gartner: Gartner 2008 IT (Gartner Highlights Key Predictions for IT Organisations and Users in2008 and Beyond), 2008 1 31 ?Sun | 6 IT IT IT IT API AGoogle Amazon Web (AWS) (E-tailing) ( Web 2.0 ) (1851 1980 ) 1100 PDF IT Hadoop ( MapReduce ) 100 Amazon EC2 Web 300 24 : ! (Self-service,Prorated Super Computing Fun!) 11/1/07, /2007/11/01/self-service-prorated-super-computing-fun/ Web ?Sun | 7 Animoto Productions( (Mashup) ) 50 3,500 APIWeb ? ApacheMySQLPHP/Perl/Python (AMP) Web lighttpd ( Web ) Hadoop ( Java )MogileFS(): Xen On-ramp ITNetscapeBEA/SAPOracle1998 ApachePHP/Perl/PythonMySQL2008 lighttpdHadoopMogileFS?Sun | 8 IT IT GoogleAmazon IT George Gilder 2006 10 Wired ( (The Information Factories) ) Gilder (Grid Computing) G. Gilder Eric Schmidt ( Web ) Web (Utility Computing) IT Nick Carr (The Big Switch) ?Sun | 10 ( 1.4 ) Amazon EC2 2008 10 Beta ? Web 2.0 ? SLA ? Sun ?Sun | 11 . OReilly Media Tim OReilly () () IT (LAN) (WAN) IT : Sun | 12: ZFS (Copy-on-Write) : : IT ( n ) (SaaS)SaaS (Multitenancy) SaaS SGoogle AppsS S F F (PaaS) ( PaaS) Xen (Amazon Web ) Web ( Linux Web Pearl Ruby)PaaS Google App Engine Google PaaS Sun | 13 (IaaS) (IaaS) () / Amazon Web (AWS) EC2 S3 Joyent Ruby on RailsPHPPython Java Web IT (Paravirtualization) (Clustering) (Encapsulation) 50% ( 10% 15%) IT Sun | 14/ () (Disaster recover