"planktonian" <> wrote in message
news

...
> I am about to do a Windows 2003 -> Windows 2003 cross forest AD
> migration but I am having difficulty getting my head around a concept.
>
> All users have AD Accounts in both Domains but the Source usernames &
> target usernames are different.
AD does not care about "humans". Different accounts are different
accounts,...whether the same human uses them or not is irrelevant.
> I would like to use ADMT to migrate the servers, worksations,
> permissions etc etc to the new domain but am confused how this will work
> as I need to map the source user to the (already existing) target user.
This is a HUGE thing. You have to read the Docs for ADMT,....over and over
and over,...if you have to. This is not something that we can teach you in
a simple email message.
> The source usernames and target usernames do not lend themselves to
> being programatically matched - ie source username: "HSRAB" needs to map
> to target username: "Joe.Bloggs"
You don't "map" anything to anything. The New Domain Starts out EMPTY. The
ADMT tool "copies" the User accounts from the Old Domain into the New Domain
and optionaly Disables the old account in the Old Domain as it does it. It
can keep the SID History to the account so the Account keep the old SID
along with the new SID to smooth out the premissions during hte migration.
But after the migration is finished the SID History can be removed.
> If I can get the accounts mapped together then I am confident that I can
> use ADMT for everything else.
You don't map anything. The accounts in the New Domain are not supposed to
exist.
--
Phillip Windell
The views expressed, are my own and not those of my employer, or Microsoft,
or anyone else associated with me, including my cats.
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