Chapter 4: Infrastructure as
a Service (IaaS)
MANY COMPANIES THAT DEPLOY applications to the cloud will need a
specific platform, such as Windows, .NET, and Microsoft SQL Server, or
Linux, Perl, and MySQL. Utilizing a platform as a service (PaaS) solution
eliminates the company’s need to administer the operating system and
supporting software. Other companies, because of security needs or a
desire to manage all resources, turn to infrastructure as a service (IaaS)
providers. An IaaS provider makes all of the computing hardware
resources available, and the customers, in turn, are responsible for
installing and managing the systems, which they can normally do, for the
most part, over the Internet.
This chapter examines examines IaaS in detail. By the time you finish this
chapter, you will be able to do the following:
- Define and describe IaaS and identify IaaS solution providers.
- Define and describe colocation.
- Define and describe system and storage redundancy.
- Define and describe cloud-based network-attached storage (NAS) devices
and identify solution providers.
- Define and describe load balancing and identify cloud-based solution
- Describe the pros and cons of IaaS solutions.