This document discusses scaling in cloud computing. Scaling refers to a system's ability to adjust to changing workloads. In traditional computing, scaling is difficult but in cloud computing it is dynamic and automatic through horizontal and vertical scaling. Horizontal scaling involves adding more instances while vertical scaling means adding more power (CPU, RAM, etc.) to existing instances. The document outlines different scaling strategies like manual, automatic, proactive, and reactive scaling. It also discusses auto-scaling in cloud, types of scaling, performance/scalability challenges, and cloud bursting as a flexible scaling scenario.

1. Scaling in the Cloud
Presentation by:Alireza Iraniramandi
supervisor:D.r akbar morshedaski
Islamic Azad University Varamin

2. Index:
• Introduction
• WHAT IS SCALING?
• SCALING IN TRADITIONAL COMPUTING
• SCALING IN CLOUD COMPUTING
Scaling in Cloud is Reversible
• FOUNDATION OF CLOUD SCALING
• SCALABLE APPLICATION
• SCALING STRATEGIES IN CLOUD
Manual Automatically
• Proactive Scaling
Proactive cyclic Proactive event- based
• Reactive Scaling
The Combination
• AUTO SCALING IN CLOUD
Scaling Boundaries
• TYPES OF SCALING
Vertical Scaling
• Comparison Between
Vertical and Horizontal Scaling
• HORIZONTAL SCALING IS MORE
CLOUD-NATIVE APPROACH
• PERFORMANCE AND SCALABILITY
• THE RESOURCE CONTENTION PROBLEM
• CLOUD BURSTING:
A SCENARIO OF FLEXIBLE SCALING

3. introduction

4. WHAT IS SCALING?
• SCALING IN TRADITIONAL COMPUTING
• SCALING IN CLOUD COMPUTING
Scaling in Cloud is Reversible

5. FOUNDATION OF CLOUD SCALING
Physical resource repository
Resource
virtualization
Resource
sharing
Providing
resources
Cloud scalability

6. SCALABLE APPLICATION

7. SCALING STRATEGIES IN CLOUD
Manual Automatically

8. Proactive Scaling
Proactive cyclic Proactive event-based

9. Reactive Scaling
The Combination

10. AUTO SCALING IN CLOUD
Scaling Boundaries
Virtual server1 Virtual server2 Virtual server3 Virtual server4
Read load all of the servers
Load Monitoring System Action Module
Chceck Load condition/
Check Pre-defined Schedule
Action
Maintain
Status
Launch
Server
Remove
Server
or
or
User Application A

11. TYPES OF SCALING
Vertical Scaling

12. Horizontal Scaling

13. Comparison Between
Vertical and Horizontal Scaling

14. HORIZONTAL SCALING IS MORE
CLOUD-NATIVE APPROACH

15. PERFORMANCE AND SCALABILITY

16. THE RESOURCE CONTENTION PROBLEM
■ Process speed of application server
■ Memory capacity and speed of application server
■ Speed of the disk I/O operation of database server
■ Network bandwidth

17. CLOUD BURSTING:
A SCENARIO OF FLEXIBLE SCALING

18. Conclusion
 Scaling is the ability of a system to adjust itself to changing workload.
 Cloud computing offers dynamic and automatic scaling
 Dynamic auto-scaling is implemented in two ways.
 A computing system can be scaled in two ways
 Horizontal scalingvertical scaling
 The infinite scalability feature of cloud computing is achievable only
through horizontal scaling.