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Upgrading from AD 2000 to AD 2003

bretcollins
Level 1
Level 1

We currently have two instances of ACS 3.1 running on two Windows 2000 Domain Controllers.

One instance is read only (changes don't replicate) Does it matter which instance I upgrade first? I think I should update the primary instance first.

Once I upgrade them to 3.3.3 I plan on installing a new server running 2003, making it a domain controller, installing ACS 3.3.3 on it from scratch. Then configuring it to replicate with our primary instance. Once that is done I will remove the secondary instance on one of the 2000 domain controllers.

Once that is done I will install another 2003 server and repeat the process except this time I will replicate with the new ACS instance.

When it's done I should have two new 2003 domain controllers and two fully functional instances of ACS 3.3.3. Anyone see any problems or have a better way to upgrade ACS, and move it to new servers, while upgrading AD to 2003? Thanks.

1 Reply 1

jhillend
Level 1
Level 1

You sound like you've thought this through. Your plan should work fine. RE: which system to upgrade first, it doesn't matter. Either way you won't be able to do replication until both systems are up on 3.3.3.