Basics of cloud computing including examples of SaaS, PaaS and Iaas. The advantages and disadvantages are reviewed as well as a plan to migrate to the cloud.

1. Cloud Computing
MOVING TO THE CLOUD
BY: SUSAN WINTERS

2. Cloud Computing
 Cloud computing is an abstraction of web-based computers, resources,
and services that system developers can utilize to implement complex
web based systems.
 Companies can get started with cloud computing at a low cost because
they only pay for what they need and pay on a monthly basis rather than
making a large investment up front.
 Cloud computing is a model for enabling convenient, on-demand
network access that can be built quickly with minimal management effort
or service provider interaction.

3. Cloud Service Models
 SaaS (Software As A Service)
 PaaS (Platform As A Service)
 IaaS (Infrastructure As a Service)

4. SaaS – Software As A Service
 Instead of investing a lot of money up front for new software, you pay as you
go, usually on a monthly basis.
 The monthly fee is much easier to budget for and you don’t have to concern
yourself with another large investment when an upgrade is made available
from the vendor.
 Upgrades are pushed out from the vendor in the background.
 The software is designed to run through a browser so you can access from
multiple devices.
 Software that resides in the cloud is able to communicate with other software in
the cloud.

5. PaaS – Platform As A Service
 PaaS solutions provide a collection of hardware and software resources
that developers can use to build and deploy applications within the
cloud.
 Developers choose either a Windows-based PaaS solution or a Linux-
based PaaS.
 Developers don’t have to wait for the IT Dept. to purchase servers, set up
farms and install applications.

6. IaaS – Infrastructure As A Service
 An IaaS provider makes all of the computing hardware resources
available; the customers, in turn, are responsible for installing and
managing the systems, which they can normally do over the internet.
 Customers pay IaaS providers only for the resources consumed. Therefore,
IaaS solutions provide the least expensive and fastest way for companies
to launch a data center or colocation facility.
 Most Iaas solutions provide on-demand scaling and load balancing.

7. Advantages to using the Cloud
 You can shift your IT budget from capital expense to operational expense.
 You can refocus your IT staff onto other high-priority projects.
 You can reduce energy consumption and expense.
Lower cost of
ownership
Easily
Upgraded
Disaster
assistance

8. Disadvantages to using the Cloud
 You cannot customize the software.
 Cloud outages are beyond the control of a business.
 Knowledge ramp is required and takes time.
Your IT Dept.
has less
control
Internet
connection
dependency
Vendor Lock-In
is Possible

9. Economic Issues
 In the past, companies purchased software for their users, investing a lot
of money up front.
 Today, companies can “rent” software as a service.
 Instead of the company having to come up with a large amount of
money to purchase software in the beginning and then again each time
the software comes out with a new upgraded version, they can now
budget for a lower monthly fee.
 Eliminate purchasing hardware that quickly depreciates, requires constant
maintenance and becomes outdated!
 Expense your hardware now being used in a service agreement.

10. Cloud Economics
On-Premise ERP Cloud ERP
Technology Buy Lease
Expense Capital Expense (CAPEX) Operational Expense (OPEX)
OPEX 50% or more higher 50% or more lower
CAPEX 80% or more higher 80% or more lower
Transparency Low High
Innovation Lower Higher

11. Data Management
 If you have an on-site database you need DBA staff to manage and maintain the database
as well as know when to scale up.
 If you have a cloud-based database management system, you hand over those admin
duties to your vendor.
 If your database is managed in the cloud, your vendor can distribute your databases across
multiple cloud providers in many countries. You obviously couldn’t do that if your database
was on-site only, unless you already had a facility in another location across the globe.

12. Data Security Advantages
Advantages of cloud-based solutions:
 Immediate deployment of software
 Extended human-relations reach
 Hardware & software redundancy
 Timeliness of incident response
 Specialist instead of personnel
 FBI background checks done on all
specialist

13. Data Security Disadvantages
Disadvantages of cloud-based solutions:
 County or jurisdiction in unwanted legal discovery
 Multitenant risks (others on your server)
 Possibility of malicious insiders at provider’s location
 Vendor lock in (dependent on customized software)

14. Step 1: Cloud Assessment
 Financial Assessment – How much will it cost to run?
 Security Assessment – Authorization / Disaster Recovery
 Technology Assessment – What do you need?
 Decide What You will move first:
 Dev/Test Applications
 Digital Marketing Campaigns
 Training Materials
 Demo Portal
 Apps in major need of scaling
Move the easiest first. Create Awareness. Train Employees on new processes.

15. Step 2: Proof of Concept
 Move over a simple app to test and get familiar with the available tools.
 Build Documentation Library
 Validate the technology
 You’ve now created your first milestone – a WIN
 Promote and move forward
Image provided by RedHat

16. Step 3: Data Migration Phase
 Learn different database storage options
 Move your data in batches
 Analyze your dataset
 Build tools and scripts to migrate data
 Encrypt your data

17. Plan for Migration
 Determine needs
 Determine vendor
 Sign a SLA (Service License Agreement)
 Create a DRP (Distribution Resource Planning) – “Who To Call” list
 Create Governance Documentation
 Start the Migration

18. Cloud Computing
 Information in this presentation was gathered from the book:
 To learn more – you can purchase the book here:
http://amzn.to/1RwROBb