An introduction to Cloud Computing, based on the material from Rackspace’s, CloudU Certification. Chapter 4: Building blocks of a Cloud

1. CLOUD DISCOVERY
AN INTRODUCTION TO CLOUD COMPUTING
Chapter 4: Building blocks of a Cloud
By: Alain Charpentier

2. Table of content
• Cloud vision
• Building Block of a Cloud
– Compute, Network, Storage, Database, Monitoring &
Autoscale
• Cloud delivery model
– Public Cloud, Private Cloud, Virtual Private Cloud,
Hybrid Cloud & Could Bursting
• Reliability of a Cloud
– Physical security, Precision environment, Conditioned
power, Core routing equipment, Network technician

3. Building block of a Cloud
Database
Storage
Compute
Monitoring &
Network Autoscale

4. Building block of a Cloud
• Compute
– Compute is the fundamental aspect of IaaS; it is the ability to make use of physical servers lying in
a data center somewhere, on demand.
– Most Cloud Computing vendors will offer a wide variety of operating systems (Windows and
Linux).
– You select RAM and local disk
• Storage
– Using Cloud storage, data is stored on multiple virtual servers among large storage pools
– Storage, apart from disk discussed above, can either be in block-based protocols or a file-based.
• Network
– The component that make up the network aspects of a IaaS are : Switching and routing, Domain
Name System or DNS, Load balancing,
• Database
– Cloud databases provide a readily scalable and easily configured method for organizations to
create, store, and access their data
• Monitoring and Autoscale
– IaaS frequently includes monitoring and autoscaling capabilities to give visibility over system
performance, and ensure that performance meets demand.

5. Public, Private, Virtual Private, Hybrid,
Cloud Bursting
Public Cloud
Virtual
Private Cloud
Hybrid
Cloud
Cloud Bursting
Private Cloud
Customers

6. Cloud delivery model
• Public Cloud
– Public Cloud is considered infrastructure that consists of shared resources, deployed on a
self-service basis over the Internet. The benefit of Public Cloud are : the highest levels of
efficiency as Public Cloud pools a huge number of users and almost limitless scaling
capabilities.
• Private Cloud
– Private Cloud is infrastructure that emulates Cloud Computing but does so on a private
network. The hardware is dedicated to the organisation own use and there is no sharing of
infrastructure between users.
• Virtual Private Cloud
– Virtual Private Clouds are created when Public Cloud vendors fence a part of their own
Cloud infrastructure to provide specifically for a single customer.
• Hybrid Cloud
– Hybrid cloud is a composition of two or more clouds (private or public) that remain unique
entities but are bound together, offering the benefits of multiple deployment models
• Cloud Bursting
– Using Cloud bursting, an organization will continue to use their own infrastructure for their
regular needs, while any peak events will be automatically passed through to the Public
Cloud provider

7. Reliability of a Cloud
• Physical Security
– Security of the building – Keycard, round-the-clock surveillance
– Authorization of personnel
– Background checking
• Precision Environment
– Redundant HVAC (Heating Ventilation Air Conditioning) systems
– Regularly circulate and filter supply air
– Advanced fire suppression systems
• Conditioned Power
– Uninterruptible Power Systems (UPSs) and backup generators
• Core Routing Equipment
– Fully redundant data routing equipment
– Multiple fibre optic connections to multiple service providers
• Network Technicians
– Certified technicians
– Technicians should be available 24x7x365.

8. QUESTIONS ?