Windows 2000 migration

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Windows 2000 migration

• Presented by
• Iain Lewis, Mathew Steele, Michael Pilkington,
  Sandeep Bains and James Rushton

2
Introduction

• ACME
• Large company covering 4 sites
• currently 12,000 employees over these 4 sites
• 1 PC per employee
• Disparate network
• Running NT 4.0
• Recently acquired an engineering company
• Company wide rationalisation is sought
• Being used to push through a better more
  centrally managed network system

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Introduction

• Engineering company needs a viable network
  solution
• Currently has no viable network
• Has a computer system

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Presentation Outline

• Windows 2000 outline
• Benefits of Windows 2000 over NT 4.0
• Current Situation
• Design
• Implementation plan
• Cost of upgrade
• Schedule
• Summary

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Windows 2000

• Is a multipurpose network operating system for
  businesses of all sizes.
• Adds many new features and technologies, such as
  Active Directory and Plug and Play.
• Remote desktop administration through Terminal
  Services

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2K - Advantages over NT 4.0

• Much greater scalability.
• Easier and to configure and use
• Increased stability
• More than one domain controller per domain.
• Increased fault tolerance

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2K - Advantages Continued

• Powerful management features such as Active
  Directory, which provide
• Customisable management services to reduce the
  total cost of ownership.
• Elements such as Group Policy.
• Centralised management of distributed networks
• Automatically managed trust relationships between
  domains.
• Automated replication and caching of information.

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Current Domain Model
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Current Network topology
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Design process
Forest Plan
Domain Plan
Structured Planning Four separate planning
phases
OU Plan
Site topology
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Forest Design

• Single forest
• Benefits
• Simple to create and maintain
• All users see a single directory through the
  catalogue
• Users do not need to be aware of any directory
  structure
• Single Global Catalogue (GC)
• One schema
• Future growth

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Domain Design

• Single domain
• Benefits
• No incremental cost of additional domains
• Allows moving of security principles
• Allows users to roam within the separate sites
• Centrally managed domain is easier to implement

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Organisational Unit Plan

• Mirrored on business structure
• Easy transfer of staff between sites
• Delegation of administration

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New Network Diagram
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Proposed Domain Model

• Single Forest
• Single Tree
• Single Domain
• Pure Simplicity
• Maintainability
• Meeting the needs of the company

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Proposed migration plan
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Steps taken to implement proposal

• 1. Create a new domain Acme.com
• 2. Establish any trusts required from the
  Acme.com domain to NT4 domains
• 3. Clone all shared local groups from target NT4
  domain
• 4. Backup PDC, BDC and other servers in NT4
  domain
• 5. Demote application servers to member servers
• 6. Move member servers and workstations to new
  domain

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Implementation continued

• 7. Decommission the source domain
• 8. Upgrade the OS on servers and workstations
• 9. Continue the process with the other NT4 domains

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Future growth

• Can easily add other Microsoft domains to current
  structure
• OU and migration plan allows rationalisation of
  new business easily
• Joint ventures can be accommodated simply with
  current structure

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Costing

• Site 5 - Engineering company.
• A viable network environment needs to be
  implemented
• Approximate cost 137,680
• Installation of Domain Controller Servers
• Upgrade of all workstations required.
• Cost - 287,500
• Total cost
• 425,000

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Costing

• Site 1 - ACME.Com
• Installation of new Domain Controller servers
• Is the hub of the company
• Most replication will occur through these servers
• Powerful server systems required
• Total cost of server upgrade
• 32,000

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Costing

• Software Licence Upgrade costs - Enterprise
  License
• 1,714,000
• Consultancy (approx)
• 500,000
• Total overall
• 2,671,000

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Schedule

• Starts with a test lab for software and hardware
• Create new domain establish trusts between it
  and the old ones
• Conduct pilot at IT department, site 1
• Rollout to each site in two phases
• Update site 5s network structure and computers
  at the same time as site 4 is being rolled out
• Create new accounts for site 5 on new domain and
  join them to it
• Move unnecessary servers from individual sites to
  site 1
• Continuously monitor the rollout

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Summary

• Future growth prospects
• Costs
• Proposed time span
• Problems
• Benefits

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Any Questions?