ES2003 from Exchange 5.5

From: Mellage (chinky.elvis_at_ice.org.uk)
Date: 05/18/04 

Date: 18 May 2004 09:27:13 -0700

Hello,

I need help setting up our new ES2003 system. Here's our current
setup:

Win2k AD native mode, 2 sites (a.org and b.com) each with its own
Win2k member servers acting as Exchange 5.5 servers. We have 2 new
and powerful servers that came with Windows Server 2003 pre-installed.
 These new machines will be used as our new mail servers. We plan to
install on Site A Exchange 2003 Enterprise, while Site B will have
Exchange 2003 Standard.

I have read the ES2003 deployment guide as well as a lot of the
newsgroup articles about this particular type of installation, and the
more I read the less confident I get about performing this upgrade.

Our plan is to join our new ES2003 servers to the existing 5.5
organisation, starting with Site A.

I've also read a lot about problems with LDAP ports and connection
agreements not working as they should.

1. Can I install ES2003 on my new server as it stands, i.e. as a
member server and not a DC?

2. What port should I change the Exchang 5.5 LDAP to when creating the
connection agreements, and do I have to revert back to the default
settings after the connections have been established or can the port
stay on its setting?

3. As I plan to move the Exchange 5.5 mailboxes to the new ES2003
server, will I have to turn the old server off after I have done so
before proceeding to upgrade Site B?

4. Will Site B be able to send and receive messages to and from Site A
while the upgrade takes place on the latter, bearing in mind that I
will have to perform forestprep and domainprep which will affect Site
B.

Any advise would be appreciated?

Thanks

Mellage

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