Operational and Deployment Issues Associated with a NASA Grid Project and Thoughts Thereon

1. Operational and Deployment Issues Associated witha NASA Grid Project andThoughts Thereon Craig A. Lee Computer Systems Research Department, M1–102The Aerospace CorporationPO Box 92957Los Angeles, CA 90009–2957lee@aero.org(310) 336-1381

2. Operational and Deployment Issues • Security, Security, Security • Trust, Trust, Trust 2

3. Hosting the NPP ADG on NREN NPP = NPOESS Preparatory Project NPOESS = National Polar Orbiting Env Satellite System ADG Aerospace El Segundo 3

4. NASA Science Data Segment: Grid Services View Notional grid services architecture that support Science Data Segment-like requirements 4

5. Grid Computing: Lessons Learned • Systems Engineering and Requirements Analysis • Understand your requirements! • Top-down requirements analysis • Concept of operations, Use Case and Workflow Analyses • Where will your system architecture benefit from Grid Technology? • What data systems benefit from grid technology? Maybe not all? • What are the critical resources that you require to share? • You may not need to implement all Grid technology elements • You may need monitoring, but not discovery • Do you need to incorporate legacy systems? • Incremental development and implementation • Technology changes so fast; large monolithic systems are obsolete by the time they are deployed • Build and Deploy in stages • Build only what you need for the near term and plan for growth • Leverage Grid Concepts and technology change to your advantage 5

6. Grid Computing: Lessons Learned • Grid Project Management Issues • You are building a Virtual Organization • The headaches can be geometrically more complex • Working Group structure similar to IPTs may be helpful • Who agrees to share what resources? • Cross IT domain issues and policies • Approval policies and timelines • Involve the decision makers in defining policy • Identify cross organizational entities and individuals who need to buy-into or approve processes or implementation • Systems Admin and Grid Admin • New staff or additional training for existing staff? 6

7. Sharing • To say that Grid Technology enables the sharing of resources is to say that Grid Technology enables a new level of competition for and protection of resources. • This is not only computational resources, but all resources associated with the grid infrastructure, e.g., people, funding, security, political dominance.Sharing is diametrically opposed to the "corporate culture" of many institutions. • How can we overcome this cultural inertia? • (Catherine Schulback of NASA CoSMO has an interesting briefing on this.) 7

8. Dealing with Mutually Suspicious Organizations Web Server Organization #1 Trusted Network Web Server Organization #2 Web Server Organization #3 8

9. More Thoughts on Grid Management • Bottom-up vs. Top-down ManagementOpen-ended Grids vs. Enterprise Grids • Enterprise-class grids are necessary step on the way to The Grid (w/ capital G) • Nobody set out to deploy "The Internet“ • It just grew • We have the notion of "The Grid", but the chances that we can monolithically deploy it are nil • The Grid is not a monolithic entity • It is a collection of services and capabilities • Bits and pieces will be deployed and used in constrained environments 9

10. Basic Architecture 10

11. Split-IP Reachback • Add route on downlink 11

12. VIPRe ATM ATM 12

13. Application IP Pit-Vipre D/L R/B Pit-VIPRe 13

14. Multicast Sender 14

15. SIMD-Grid Giant Synchronous Controller in the Sky I’m Joking! Your Grid 15

16. The MicroSquish Managed Grid Client Approach Gil Bates Giant Synchronous Controller in the Sky Makes Sure Your Grid is Always Properly Configured Your Grid I’m Still Joking! 16