a journal of a researcher

Thursday, April 30, 2009

IT as services – Cloud Computing in HP

I browsed HP’s strategy on Cloud Computing. I found HP is very active in providing Cloud Computing techniques, especially in the techniques to build data center based on Cloud diagram.

In HP’s vision, “Service” is delivering values to customers facilitating outcomes customers want without the ownership of specific costs and risk (Scott McClellan, HP). A IT system for an enterprise has three layers: infrastructure, platform and software applications. All the three layers can be outsourced and provided as services: Infrastructure as services, platform as services and software as services (SaaS). All these services can be from clouds. For clouds, these services just differentiate each other in the added value – the infrastructure services are the rawest ones. Services are connected to each other.

Compare clouds to enterprise architecture, enterprise architecture is a process centric view, while services in different layers are like an onion (computer-storage – OS – middleware – application – integrated system). (make sense here???).

Business model: Enterprise IT to global IT

If IT organization takes service-centric view, IT emphasis on sourcing and delivering services. Service is economic unit of measure. IT managers still balance between budget, culture and risk. Also integration, continuity and security are still considerations. New things: series of provider/consumer relationships across the enterprise. Service governance and procurement, service level agreements are new topics.

Technical challenges

Cloud platform
  • Scale up data, tasks
  • Workload balance: currently the programmer needs to consider this. When clouds are matured, it should be
  • service composition
  • transactions
  • security
  • cell isolation for security and performance
  • cell composition
  • model-based cell configuration and control
  • management system allocation across large-scale infrastructure.
Automated service life cycle management
  • life cycle management for service offers & instances in clouds
  • multiple viewpoints, modular, parameter models
  • managing & predicting nonfunctional properties
Data center
  • Exa-scale data center
  • Sustainable data center


  • It is very interesting for me to read the article. Thanx for it. I like such topics and everything that is connected to this matter. I definitely want to read more on that blog soon.

    By Anonymous Anonymous, at 2:45 AM  

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