Cloud Computing - ALA Capital Chapter

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3 Νοε 2013 (πριν από 3 χρόνια και 7 μήνες)

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Cloud Computing


2

A division of Konica Minolta Business Solutions USA Inc.

What is Cloud Computing?

A model for enabling convenient, on
-
demand
network access to a shared pool of configurable
computing resources (e.g., networks, servers,
storage, applications and services) that can be
rapidly provisioned and released with minimal
management effort or service provider interaction.


In short, “computation as a…utility”


3

A division of Konica Minolta Business Solutions USA Inc.

Why is it called “the Cloud”?

The term “Cloud” comes from the cloud symbol on a
network designer’s flowchart. This symbol is used to
denote the Internet as a definition for a packet of
information.








4

A division of Konica Minolta Business Solutions USA Inc.

Characteristics of a Cloud


Simple


Users do not need to understand the underlying technology
infrastructure.


Business Centric


Users buy capabilities, not resources.


Elastic


Services are available as
needed.


Use
only as much or as little as
needed.


Scalable


Users can access more power and capacity without adding complexity


Universally Accessible


Access does not depend on the users location. Available via internal or
external connections.


5

A division of Konica Minolta Business Solutions USA Inc.

Business Case for Cloud Services


Cost Reduction


Scalability and Elasticity


Security


Increased Performance


Mobility


Reduced Environmental Impact


Disaster Recovery


Turn Fixed Cost into Variable Cost


Peace of Mind

6

A division of Konica Minolta Business Solutions USA Inc.

3 Primary Cloud Service Models


Software as a Service (SaaS)


Use provider’s applications over a network



Platform as a Service (PaaS)


Deploy customer
-
created applications to a cloud



Infrastructure as a Service (IaaS)


Rent processing, storage, network capacity, and other
fundamental computing resources

7

A division of Konica Minolta Business Solutions USA Inc.

4 Primary Cloud Deployment Models


Private Cloud


Enterprise owned or leased



Community Cloud


Shared infrastructure for specific community



Public Cloud


Sold to the public


Mega
-
scale infrastructure



Hybrid Cloud


Composition of two or more of the above

8

A division of Konica Minolta Business Solutions USA Inc.

Cost Reductions



Capital expenditures are reduced since investment in
hardware/software is made by the service provider



Operating expenditures are reduced since operation and
maintenance of the IT infrastructure has been moved to the
service provider



Facility costs (square footage, HVAC, power, security, etc.)
are significantly reduced

9

A division of Konica Minolta Business Solutions USA Inc.

Mobility



The functionality provided by the cloud should be available to
the business wherever its personnel are based and via
multiple access methods


from the desktop, a remote laptop,
a mobile device, or a web browser.



Simply put, a computing device needs only to connect via
some type of network and, once it has connected, it can
access the full computing power of the cloud.



Connected employees can access up
-
to
-
date information and
work on the same document or project simultaneously with
others without spending time sending, receiving, or
synchronizing.

10

A division of Konica Minolta Business Solutions USA Inc.

Why Cloud Computing?



Increased Reliability


The cloud runs on systems that are extremely reliable and redundant


Increased Scalability


Providers add capacity when and where needed


Cost Reduction


Both capital and operating expenditures are reduced


Environmentally Friendly


Carbon footprint is reduced by eliminating individual server purchases


Portability/Accessibility


Files and software are available anywhere there is an Internet connection


Efficient Use of Computer Resources


Reduction in CPU/server slack time


Versionless Software


Updates to software are constant and transparent to the user.

11

A division of Konica Minolta Business Solutions USA Inc.

Key Considerations



Total Cost of Ownership (TCO)


Hardware and Infrastructure Savings


CapEx and OpEx Ratio Shifting


Security Implications


Service Provider Stability


Service Level Agreements


12

A division of Konica Minolta Business Solutions USA Inc.

Total Cost of Ownership (TCO)

A data center is one of the most financially concentrated assets
of any organization and holistically assessing its true TCO is
difficult. These costs are typically spread across several
departments which makes management of these costs and
assessment of alternatives difficult.

13

A division of Konica Minolta Business Solutions USA Inc.

Security Implications


Shifting data to an external cloud reduces the exposure of
sensitive data (assuming a proper security regime at the
provider)



Clouds make security auditing/testing simpler



Clouds make regulatory compliance (HIPAA, PCI/DSS, etc.)
simpler by
shifting physical security responsibility to the
provider



Clouds enable automated security management



Redundancy and disaster recovery are a core service in the
Cloud

14

A division of Konica Minolta Business Solutions USA Inc.

Service Provider Stability


If the provider goes out of business, it may be impossible for
the business user to recover their data and investment



Businesses should conduct extensive due diligence into the
provider’s history and financial status before negotiating for
service



Service level agreements must be executed in the event of an
interruption of operations.



Unwind provisions and procedures must be clear and
unambiguous

15

A division of Konica Minolta Business Solutions USA Inc.

Service Level Agreements (SLAs)


Contract between customers and service providers of the
level of service to be provided



Contains performance metrics



Problem management details



Contains penalties for non
-
performance

16

A division of Konica Minolta Business Solutions USA Inc.

Final Thoughts


Cloud computing may enable businesses to save money and
be more secure


Users will have the flexibility of accessing information from
anywhere an Internet connection exists


Allows businesses to focus on their core competencies


Eliminates concerns with version maintenance and end
-
of
-
life
declarations


Shifts CapEx to OpEx and reduces both


Simplifies regulatory compliance requirements