FIU CIS 6612 - Agnostic Questions for “The Anatomy of the Grid: Enabling Scalable Virtual Organizations”

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Agnostic Questions for “The Anatomy of the Grid: Enabling Scalable Virtual Organizations”For the connectivity layer, which the authors describe "communicating easily and securely",most of the attention is given to authentication solutions. Traditional Grid infrastructure, such asthe GSI from Globus, has also concentrated on authentication and not provided a sufficientinfrastructure for the rest of the trust hierarchy (i.e. authorisation, policy implementation, etc). 1. To date, what measures have been made towards providing a more complete security infrastructure on the Grid? 2. Are any of these solutions also "easy" to install and configure?With respect to storage resources, the authors mention that "third party and high performancetransfers are useful". Grid applications today generate very large datasets, and I/O is already theslowest computational component by several orders of magnitude when compared to memory orprocessor speed.3. As number and size of Virtual Organizations grow, will not data access and retrievalbecome a major bottleneck, and hence remove the attractiveness of the grid for meetingthe needs of some members? What approaches are being used to address problem nowrather than waiting for network speeds to improve?4. What work is being done to address some of the more difficult I/O topics for Gridcomputing such as noncontiguous I/O, caching, and fault tolerance?The authors define the Grid problem as flexible, secure, coordinated resource sharing amongdynamic collections of individuals, institutions, and resources. Thus, Grid computing bydefinition cuts across organizational boundaries. Its development is supported by a multitude ofworking groups and forums where competitors often find themselves working together for thecommon goal and collaboration is the operative tool.5. This paper discusses solutions to many of the technical challenges of the Grid. Do youthink that management of collaboration efforts is just as important as solving thetechnical challenges? If so, why? Could including such information in the paper haveimproved the discussion of any particular section?6. By the definition of Grid computing, the authors stress the need for interoperabilityacross organizations. In your opinion, is the ultimate vision of Grid computing obscuredby the lack of interoperability standards among Grid technologies? 7. In previous presentations Global Grid Forum (GGF) and OASIS have been mentioned asleaders in moving towards a primary set of Grid standards. What other organizationalbodies are currently pushing towards guaranteeing interoperability among Grids? Is thiseffort sufficient considering the grand challenges facing the


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FIU CIS 6612 - Agnostic Questions for “The Anatomy of the Grid: Enabling Scalable Virtual Organizations”

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