云计算讲座知识.ppt

* 谢谢！ * * * * * * * * As I am sure, you all have heard from your respective customers: the data center has become their top priority. Customers are engaging or about to engage or a few serious initiatives with clear objectives of cost reduction, increase availability, or even environment protection. Topics that you may have started to discuss or will most likely discuss this year with your customers are: Virtualization, Cloud Computing, Consolidation, Disaster recovery, and Green initiatives. Cloud computing is basically an environment where everything can be delivered as a service and deployed in either a physical internal IT data center or a virtual data center hosted by a 3 party party. Moving counter clockwise, Virtualization which is one of the key enablers of Cloud computing and as a platform is used for first the purpose of cost reduction Talking about cost reduction, this leads us to saving of cost in power and cooling which are 2 top costs and represent more than the cost of the hardware itself (some studies revealed that customers were spending per year the equivalent of the cost of the hardware in power and cooling cost). The second purpose of virtualization leads us to consolidation. Here the trend is to move from many small data centers to a few large ones as HP or Emerson for example. And finally, because saving money or gain in flexibility, agility, time to market cannot come at the expense of high availability, customer need to deploy solution that span multiple data center in order to provide disaster recovery. * * 1879, The dynamo - capable of powering neighborhood-wide lighting systems 1882, Central power station - turns electricity into a commodity * * Familiarize customers with cloud definitions and what we mean when we are talking about the various cloud types. Private: The cloud is located within a customers data center providing greater agility, time-to-market and time-to-value. Hybrid: Data is moved to a trusted provider w