Technical DemonstratorSLA-driven Service Management: 8 November 2006 (c) 2006 BT, HLRS, FZJ, UoE and other members of the NextGRID consortium 1 Technical Demonstrator SLA-driven Service Management Bastian Koller, Philipp Wieder,


All services in NextGRID need a SLA: (c) 2006 BT, HLRS, FZJ, UoE and other members of the NextGRID consortium 2 All services in NextGRID need a SLA To offer an SLA it must be possible to manage the service otherwise the cost to the service provider can become prohibitive Demonstrate a generic framework to provide this management functionality parameterised for each application


SLA Lifecycle: (c) 2006 BT, HLRS, FZJ, UoE and other members of the NextGRID consortium 3 SLA Lifecycle Discovery and Negotiation Telemanagement Forum


SLA Based Service Management: (c) 2006 BT, HLRS, FZJ, UoE and other members of the NextGRID consortium 4 Customer Management Framework Service Provider SLA Based Service Management Allocator Customer Client Template Registry Discovery Coordinator Template Generator Signer Constraint Checker BLO Retriever Negotiation Coordinator Deployer Service Evaluator MID Service Supervisor Service Utilisation SP Template Repository BLOs Accounting + Billing QoS Analyser Operational QoS History SP Relation History Policy Generator QoS Info Provider Demonstration covers SLA Lifecycle Stages 2-5 and components from WP4/5


Scenario: (c) 2006 BT, HLRS, FZJ, UoE and other members of the NextGRID consortium 5 Scenario The Service: The Credit Card Check service allows the customer to check whether a credit card is valid. Customer Requirements from Service: Functionally Accurate Reliable Performance Transparent Pricing


The SLA: (c) 2006 BT, HLRS, FZJ, UoE and other members of the NextGRID consortium 6 The SLA As part of this agreement the SP guarantees the following service level: The service will process 5000 transactions per hour 95% of these 5000 transactions will complete within a second The SP promises to complete 99.99% of all submitted transactions up to the defined limit of 5000 transactions per hour. The customer constraints are: Maximum of 100 transactions submitted in 1 min


Components: (c) 2006 BT, HLRS, FZJ, UoE and other members of the NextGRID consortium 7 Customer Domain Bob Service Provider Domain HLRS Components SLA Template Repository Service Provider Negotiator Service Provider Domain BT SLATemplate Repository Service Provider Negotiator Registry UDAP Customer GUI HLRS NEC FZJ * Colour-Legend *


Prerequisites: (c) 2006 BT, HLRS, FZJ, UoE and other members of the NextGRID consortium 8 Prerequisites Registry BT & HLRS have registered their services at the registry


Discovery I: (c) 2006 BT, HLRS, FZJ, UoE and other members of the NextGRID consortium 9 UDAP Customer Domain Bob Discovery I Registry Customer GUI Define Udap Request 2. Send Udap Request 3. Query Registry 4. Request Templates from the different SLA Template Repositories


Discovery II: (c) 2006 BT, HLRS, FZJ, UoE and other members of the NextGRID consortium 10 UDAP Discovery II Request Templates from the different SLA Template Repositories


Discovery III: (c) 2006 BT, HLRS, FZJ, UoE and other members of the NextGRID consortium 11 UDAP Customer Domain Bob Discovery III Customer GUI Receive Addresses of Service Providers (Negotiators) as well as information about offered services 2. Decide on candidates for negotiation


Negotiation I: (c) 2006 BT, HLRS, FZJ, UoE and other members of the NextGRID consortium 12 Service Provider Domain BT Service Provider Domain HLRS Negotiation I SLA Template Repository Service Provider Negotiator SLATemplate Repository Service Provider Negotiator Create Bid based on template Send Bid and request offer from the respective Service Providers


Negotiation II: (c) 2006 BT, HLRS, FZJ, UoE and other members of the NextGRID consortium 13 Negotiation II Service Provider Domain SLATemplate Repository Service Provider Negotiator Query Repository for matching Service Templates 2. Decide whether to offer an SLA Offer 3. (Create Offer) (Send Offer to Customer)


Negotiation III: (c) 2006 BT, HLRS, FZJ, UoE and other members of the NextGRID consortium 14 Negotiation III Analyze Offer(s) Decide whether to accept or reject the offer(s) (In this case the customer selects the service with the maximum possible submission rate)


Negotiation IV: (c) 2006 BT, HLRS, FZJ, UoE and other members of the NextGRID consortium 15 Service Provider Domain BT Service Provider Domain HLRS Negotiation IV SLA Template Repository Service Provider Negotiator SLATemplate Repository Service Provider Negotiator Send Acceptance Send Rejection