Cloud Computing: DTGOV Webserver Migration Plan and Architecture

This report outlines a webserver migration plan for DTGOV, a public organization, focusing on transitioning its IT operations to a cloud environment. The plan begins with a webserver trial using AWS, highlighting its benefits in terms of security and cost-effectiveness. It then explores a hybrid cloud architecture using the Burst In and Burst Out technique for IaaS, emphasizing cost-effectiveness and performance. The migration includes a shift to Office 365, detailing its advantages like improved collaboration and flexibility, while also addressing potential issues such as internet dependency and compatibility. The report also introduces Microsoft SharePoint 2010, recommending SaaS as the most suitable model. It discusses the benefits and issues of this model, such as increased accessibility versus data confidentiality, and suggests mitigation strategies, including data encryption and clear service level agreements (SLAs). The report references key sources to support its recommendations.

WEBSERVER
MIGRATION PLAN
(DTGOV)
CLOUD COMPUTING

UNDERSTANDING DTGOV
• DTGOV is a public organization conducted by the social
security ministry.
• The organization provides IT operations to various
users.
• DTGOV targets to migrate to different topologies, to
the three data centres.
• Proper assessment of the migration plan is essential,
due to long time duration.

MIGRATION PLAN
• Webserver trail initialization.
• Deployment of Microsoft SharePoint 2010
to the Cloud (as Office Automation Suite).
• Migration to Office 365 suite.

1. 1) WEBSERVER TRIAL PHASE
• Implementation of cloud model to initiate
proper utilization.
• Introduction of virtual hardware for proper
allocation of webserver.
• Initializing the usage in AWS.
• AWS’s benefit for greater security and low-
cost implementation plan, to the respective
organization.

AWS
• Storage of data and its safety is
maintained in AWS cloud platform,
without any limitation to the data size.
• Increased effectiveness, availability and
scalability.

1.2) POSSIBLE CLOUD
ARCHITECTURE FOR
WEBSERVER MIGRATION
IaaS on Hybrid Cloud (using Burst In and Burst
Out technique):
The hybrid architecture of Cloud Bursting
allows organizations to increase capacities as
required.
Enhancement of cost-effectiveness and
performance consistency.
Self-service functionality, on-demand scale,
flexibility, fault-tolerance and automation
supporting human errors, lead to cost savings.

2) SHIFT TO OFFICE 365
• Office 365 can record, stored and back up
massive amount of user data over cloud.
• Customizable office suites.
• Portability of usage from any device.
• Better flexibility, services, sharing,
recovery and other features.

2.1) BENEFITS OF MIGRATION
TO OFFICE 365
• Flexibility of access
• Improvement in team collaboration
• Threat Intelligence
• Regular and automatic updates
• Mobile device management
• Advancement in security
• Flexibility in plans

2.1) ISSUES OF MIGRATION TO
OFFICE 365
• Absence of Internet connection can affect the
continuation of services.
• Issues to compatibility may occur during on-
premises device and system usage.
• Absence of data ownership.

2.1) CONTRAST OF CLOUD-
BASED APPROACH TO ON-
PREMISE DATA CENTRE
• Features of providing increased storage
space (Kumarasamy et al., 2016).
• Data backup and recovery methods are
easy and automatic.
• Downtime risk is close to ‘Null’ in cloud
based approach (Rittinghouse &
Ransome, 2016).

3) INTRODUCING MICROSOFT
SHAREPOINT 2010
• An intuitive document management and
collaboration platform.
• Management of documents, archives,
reports and any content, to any business
industry.
• Compliance to web standards like WCAG
2.0 AA, XHTML and others.

3.1) RECOMMENDED MODEL FOR
MICROSOFT SHAREPOINT 2010
EVALUATION
• SaaS is the most recommendable option, among other
migrating medias of IaaS, PaaS and SaaS.
• SaaS provides non-customizable cloud hosted software
services. They relate to infrastructure-based services (Kavis,
2014).
• PaaS provides customizable cloud hosting services over on-
premises application. They relate to platform-based service
models (Alam,Pandey & Rautaray,2015).
• IaaS provides a platform to host on-premises cloud services
(installed within a server) (Sadiku, Musa & Momoh, 2014).