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Module 13: Developing an Upgrade Strategy. Overview. Windows 2000 in Mixed Mode Upgrading Windows NT Domain Models Steps Involved in Upgrading Planning an Upgrade. Windows 2000 in Mixed Mode. Managing Primary Domain Controller Requests Creating Security Principals Services in Mixed Mode
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Overview • Windows 2000 in Mixed Mode • Upgrading Windows NT Domain Models • Steps Involved in Upgrading • Planning an Upgrade
Windows 2000 in Mixed Mode • Managing Primary Domain Controller Requests • Creating Security Principals • Services in Mixed Mode • Security in Mixed Mode • Choosing Between Native Mode and Mixed Mode
Managing Primary Domain Controller Requests • PDC Emulator Single Operations Master • PDC Emulator and Replication • PDC Emulator and Downlevel Client Authentication • PDC Emulator Failure and Recovery • PDC Emulator in a Fully-Upgraded Domain
Creating Security Principals • Active Directory Objects Are Identified By • Security identifiers (SID) • Relative identifiers (RID) • RID Master Centrally Manages RID Allocation • Downlevel Clients Use RID Master for Creation of Security Principals
Services in Mixed Mode • Logon Services • File Replication Service • Remote Access Service
Security in Mixed Mode • Trust Relationships • System Policy Application • The SAM Database
Choosing Between Native Mode and Mixed Mode • Choosing Native Mode • Choosing Mixed Mode
Upgrading Windows NT Domain Models • Operating Systems That Can Be Upgraded • Upgrading the Single Domain Model • Upgrading a Master Domain Model • Upgrading a Multiple Master Domain Model • Upgrading a Complete Trust Model
Operating Systems That Can Be Upgraded Servers Windows NT Server 3.1 or 3.5 Windows NT Server 3.51 or 4.0 Windows 2000 Server Windows 2000 Server Windows NT Server 3.51 or 4.0 Client Computers Windows 95 or Windows 98 Windows 2000 Professional Windows 95 or Windows 98 Windows 2000 Professional Windows 3.x
Upgrading the Single Domain Model Single Windows NT Domain Single Windows 2000 Domain Kirsten Larson: Anything more I need to do with this one?
Upgrading a Master Domain Model Windows NT Master Domain Model Windows 2000 Domain Tree
Upgrading a Multiple Master Domain Model Windows NT Multiple Master Domain Windows 2000 Possibilities
Upgrading a Complete Trust Model Windows NT Complete Trust Windows 2000 Possibilities
Steps Involved in Upgrading • Upgrading the Primary Domain Controller • Upgrading the Backup Domain Controllers • Upgrading Workstations and Member Servers • Testing and Verifying an Upgrade
Upgrading the Primary Domain Controller • Consider Hardware Carefully for the First Domain Controller • Subsequent Upgrades Can Join Forest • Accounts Are Copied to the Active Directory • Upgrade at Least One PDC in Each Domain
Upgrading the Backup Domain Controllers • Automatically Promoted to an Active Directory Replica • Automatically Start the Promotion Process to Install the BDC As an Active Directory Replica • Adds the BDC into the Replication Topology
Upgrading Workstations and Member Servers • Upgrade In Any Order • Active Directory Client Software Necessary to View Organizational Units
Testing and Verifying an Upgrade • Domain Upgrade • User and Group Accounts • System Policies • Using Event Viewer to Verify Active Directory Install • Hardware Configuration
Planning an Upgrade • Examining the Existing Domain Structure • Developing a Recovery Plan • Designing the First Tree in the Forest • Designing a Site Topology • Determining the Order for Upgrading Domains • Determining a Strategy for Upgrading Domain Controllers
Examining the Existing Domain Structure • Domain Model • Existing Trust Relationships • Number and Location of Domain Controllers • Current DNS Structure
Developing a Recovery Plan • Back Up All Services • Synchronize BDCs with PDCs • Take a BDC Offline • Be Prepared for a Recovery If Needed
Designing the First Tree in the Forest • Examine Existing Domain Structure • Examine Existing Trust Relationships • Determine the Number and Locations of Domain Controllers • Identify the DNS Root Name
Designing a Site Topology • Identify Physical Sites in the Forest • Identify Domains That Will Span Sites • Identify Current and Planned Link Speeds • Consider Type of Network
Determining the Order for Upgrading Domains • Identify the Root Domain • Decide on Multiple Account Domains
Determining a Strategy for Upgrading Domain Controllers • Upgrade BDCs As Quickly As Possible • Upgrade PDCs and BDCs for Resource Domains • Upgrade Initially to a Single Domain
Review • Windows 2000 in Mixed Mode • Upgrading Windows NT Domain Models • Steps Involved in Upgrading • Planning an Upgrade