EXPERT RESPONSE
You will have to cover at least the following:
Collect diagrams configuration of current DNS
Collect diagrams and configuration of current network structure -- include bandwidth, remote locations and stability
Collect listings of all servers and their criticality
Collect listing of workstations that will be affected
Understand how all of the servers and workstations interrelate
Collect information on the security policies or the requirements if you have to create a security policy
Determine the type of migration (post restructure, pre-restructure, pristine build or upgrade)
Determine the rights, objects and policies that will need to be migrated.
Determine the fall back procedures in case of failure
This involved procedures for servers, backups, secondary systems, etc.
Then you start the development the plans:
User education and notification plan (this gets missed so often)
IT training plan
DNS structure and implementation plan (must be completed first)
AD installation and implementation/migration plan
Must include fallback plan
Must have interim operations plans (how to support)
Must have interim functionality plan (how replication, WINS, DNS and logins will be working)
Installation of AD
Installation/upgrade of servers
Trusts required and how to install
Sites that will be installed
Hardware required
Here is the post-AD installation planning:
Must include cleanup of old accounts, groups, ACLS, etc.
Retirement of old systems
Retirement of old domains
Move to NATIVE mode
Upgrading other servers (applications, Web systems, etc.)
Support plan for the migration and post migration
Here is the group policy planning:
Development of group policy for user accounts, passwords, security
GP for event logs, desktops, etc.
Who has access to modify group policy
Here is the operations planning:
Who will be administrating the AD and each piece of the AD
Help desk functions
IT server administration functions
Well, that is my quick list. There is more of course, and the list is a little dynamic based on the type of migration that occurs.
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