Archive for the ‘Articles’ Category

SLA Focused Financial Grids

Friday, August 28th, 2009

The financial sector depends heavily on process and data intensive computations to deliver competitive advantage. Financial applications are particularly suited to grid-based experimentation and research. A Financial Live Trading System is used an exemplar in this article. The emerging growth of worldwide trading and the reliance on automated processing has increased the complexity and volatility [...]

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Complex Service Management

Wednesday, August 12th, 2009

Originally, (Web) services were deployed and used with almost no actual control by the different parties. The simplistic assumption that their behavior was correct and everyone had to be happy with the functionality provided was unrealistic. The actual exploitation of services, imposed us to start conceiving different methods and tools to manage the complete life-cycle of deployed and running services with special emphasis on the actual run-time behavior.

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Hierarchical Monitoring Services for Efficient Distributed System Management

Friday, July 10th, 2009

An essential part of an SLA-aware infrastructure is a scalable and self-sufficient monitoring system capable of monitoring large distributed systems, in real-time. The monitoring system must support two mutually exclusive perspectives arising from the Service Level Agreement, namely the customer’s perspective and the infrastructure/service provider’s perspective. The former is interested in the SLA alone, while [...]

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So What’s in OVF?

Tuesday, April 21st, 2009

The Open Virtualisation Format (OVF) is a schema for describing a virtual machine or a collection of virtual machines. The initiative is the results of efforts by the Distributed Management Task Force (DMTF) who, amongst other standards, are responsible for the Common Information Model (CIM).

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What’s in a Service Level Agreement?

Tuesday, March 17th, 2009

Our project is about managing Service Level Agreements, so in this post it is a good opportunity to discuss them in general and see some aspects of their management.

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Messaging and Infrastructure Management

Friday, February 6th, 2009

SLA@SOI is dedicated towards building an SLA-aware service oriented infrastructure. A key component of this will be the layer managing the infrastructure, and we are envisioning that this must be able to handle internet-scale deployments. Management of an environment with hundreds of thousands of nodes places significant demands on communication channels, and SLA@SOI is currently investigating how protocols like XMPP might help address these needs.

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