3. 云计算:一个浅显的理解
众说纷纭, 各有侧重
–Wikipedia: Cloud computing is Internet-based computing, whereby shared
resources, software and information are provided to computers and other
devices on-demand, like a public utility.
–Gartner: Cloud computing is a style of computing where massively
scalable IT-related capabilities are provided “as a service” using Internet
technologies to multiple external customers.
–Salesforce.com: Cloud computing is a better way to run your business.
Instead of running your apps yourself, they run on a shared data center.
• 我们的理解
– 对IT所提供服务的期望永远在不断的提升
• 做不到 实现 更好,更快,更容易,更低廉
– 时时重新审视IT及相关技术的演变
– 云计算:特别强调对效果的要求
• 使用者:只关注自己的需求是否被完全满足,不需考虑服务的实现方式和技术
• QoS (Quality of Service): 费用,可靠,安全,功能...
• 提供者:提供服务的实现方式是可持续经营的:成本效益
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10. 云计算的本质(续)
3 实现规模经济
–规模扩大:资源共享可大幅降低运营的单位成本
–使用者增多:服务共享可降低使用者所支付的费用
–使用者与服务的跨接, 急速增加共享的服务与资源数量, 产生经济规模的乘数效应
End User
Arm Supplier Cloud Client
Cloud Provider
End User
Arm Supplier
…
Cloud Client
Cloud Provider
Arm Supplier
Cloud Client End User
4 产生新创价值
–形成业务价值链,促进创新协作,从而产生更高的价值
–吸引更多用户,产生更多的新兴服务,建立新兴产业
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25. 企业:使用云计算的路线图
• 分析确定适合以及不适合云计算的IT服务范围,确定利用云计算服务的优
先级
• 制定把服务迁移到云计算平台的步骤
• 保证在云计算平台中的IT服务与不在云计算平台中的IT服务的无缝连接
• 采纳合适的工具简化向云计算平台迁移的过程,保障迁移的效果
制定采用云计算的战略和路线图时所考虑的问题和步骤
来源: Capturing the potential of cloud, white paper, IBM Global Business Services
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30. 参考:IBM提供的云计算产品和服务
分析优化 协作 开发测试 共享桌面 计算 存储 业务服务
Smart business IBM Lotus Smart IBM Smart IBM IBM BPM
on the IBM cloud
Live Business Business Computing Information BlueWorks
Standardized services IBM Lotus® Development Desktop Cloud on Demand Protection (design tools)
on the IBM cloud
iNotes® and Test on Smart Business Services Smart business
the IBM End User expense
Cloud (beta) Support reporting on the
IBM cloud
IBM Smart IBM Smart IBM Smart IBM
IBM Smart Business Analytics Business Business Smart
Services Cloud Test Cloud Desktop Business
Private cloud services,
Cloud Storage
behind your firewall, built
and/or managed by IBM
Cloud
IBM Smart IBM IBM Smart Business
Analytics CloudBurst Information for Small or
IBM Smart Business System ™ family Archive Midsize
Systems Business
Preintegrated, workload- (backed by the
optimized systems IBM Cloud)
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