SLA Management in Cloud
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The document discusses service level agreement (SLA) management in cloud computing. It describes the five phases of SLA management: feasibility, on-boarding, pre-production, production, and termination. In the feasibility phase, technical, infrastructure, and financial feasibility of hosting an application on a cloud platform are assessed. In the on-boarding phase, the application is moved to the hosting platform and its performance is analyzed. The pre-production phase involves hosting the application in a test environment to validate the SLA. In production, the application goes live under the agreed SLA. Finally, termination occurs when hosting is ended and customer data is transferred or removed.
SLA Management in Cloud
- 1. Dr Neelesh Jain Instructor and Trainer Follow me: Youtube/FB : DrNeeleshjain Cloud Monitoring & Management SLA MANAGEMENT IN CLOUD
- 2. Dr. Neelesh Jain 8770193851 Follow me: Youtube/FB : DrNeeleshjain Introduction ● SLA ● Types of SLA ○ Infrastructure SLA ○ Application SLA ■ Different Parameter or Elements of theses ● Life Cycle of SLA: Five phases: ■ Contract definition ■ Publishing and discovery ■ Negotiation ■ Operationalization ■ De-commissioning
- 3. Dr. Neelesh Jain 8770193851 Follow me: Youtube/FB : DrNeeleshjain SLA MANAGEMENT IN CLOUD SLA management of applications hosted on cloud platforms involves five phases. 1. Feasibility 2. On-boarding 3. Pre-production 4. Production 5. Termination
- 4. Dr. Neelesh Jain 8770193851 Follow me: Youtube/FB : DrNeeleshjain SLA MANAGEMENT IN CLOUD- Feasibility Managed Service Provider (MSP) conducts the feasibility study of hosting an application on their cloud platforms. This study involves three kinds of feasibility: 1. Technical feasibility, 2. Infrastructure feasibility, and 3. Financial feasibility.
- 5. Dr. Neelesh Jain 8770193851 Follow me: Youtube/FB : DrNeeleshjain SLA MANAGEMENT IN CLOUD- Feasibility The technical feasibility of an application implies determining the following: 1. Ability of an application to scale out. 2. Compatibility of the application with the cloud platform being used within the MSP’s data center. 3. The need and availability of a specific hardware and software required for hosting and running of the application. 4. Preliminary information about the application performance and whether they can be met by the MSP.
- 6. Dr. Neelesh Jain 8770193851 Follow me: Youtube/FB : DrNeeleshjain SLA MANAGEMENT IN CLOUD- Feasibility Infrastructure feasibility involves determining the availability of infrastructural resources in sufficient quantity so that the projected demands of the application can be met. The financial feasibility study involves determining the approximate cost to be incurred by the MSP and the price the MSP charges the customer so that the hosting activity is profitable to both of them. A feasibility report consists of the results of the above three feasibility studies.
- 7. Dr. Neelesh Jain 8770193851 Follow me: Youtube/FB : DrNeeleshjain SLA MANAGEMENT IN CLOUD- On-Boarding of Application Once the customer and the MSP agree in principle to host the application based on the findings of the feasibility study, the application is moved from the customer servers to the hosting platform. Moving an application to the MSP’s hosting platform is called on-boarding On-boarding activity consists of the following steps: ● Packing of the application for deploying on physical or virtual environments.
- 8. Dr. Neelesh Jain 8770193851 Follow me: Youtube/FB : DrNeeleshjain SLA MANAGEMENT IN CLOUD- On-Boarding of Application ● The packaged application is executed directly on the physical servers to capture and analyze the application performance characteristics. ● The application is executed on a virtualized platform and the application performance characteristics are noted again. Important performance characteristics like the application’s ability to scale (out and up) and performance bounds (minimum and maximum performance) are noted. ● Based on the measured performance characteristics, different possible SLAs are identified.
- 9. Dr. Neelesh Jain 8770193851 Follow me: Youtube/FB : DrNeeleshjain SLA MANAGEMENT IN CLOUD- On-Boarding of Application ● Once the customer agrees to the set of SLOs and the cost, the MSP starts creating different policies required by the data center for automated management of the application. This implies that the management system should automatically infer the amount of system resources that should be allocated/de-allocated to/from appropriate components of the application when the load on the system increases/decreases.
- 10. Dr. Neelesh Jain 8770193851 Follow me: Youtube/FB : DrNeeleshjain SLA MANAGEMENT IN CLOUD- Preproduction Once the determination of policies is completed as discussed in previous phase, the application is hosted in a simulated production environment. It facilitatesthe customer to verify and validate the MSP’s findings on application’s runtimecharacteristics and agree on the defined SLA. Once both parties agree on the cost and the terms and conditions of the SLA, the customer sign-off is obtained. On successful completion of this phase the MSP allows the application to go on-live.
- 11. Dr. Neelesh Jain 8770193851 Follow me: Youtube/FB : DrNeeleshjain SLA MANAGEMENT IN CLOUD- Production In this phase, the application is made accessible to its end users under the agreed SLA. Here customer may request the MSP for inclusion of new terms and conditions in the SLA. If the application SLA is breached frequently or if the customer requests for a new non-agreed SLA, the on- boarding process is performed again.
- 12. Dr. Neelesh Jain 8770193851 Follow me: Youtube/FB : DrNeeleshjain SLA MANAGEMENT IN CLOUD- Termination When the customer wishes to withdraw the hosted application and does not wish to continue to avail the services of the MSP for managing the hosting of its application, the termination activity is initiated. On initiation of termination, all data related to the application are transferred to the customer and only the essential information is retained for legal compliance. This ends the hosting relationship between the two parties for that application, and the customer sign-off is obtained.
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