RE: Migration from Exchange 2003 to Exchange 2007
- From: John777 <John777@xxxxxxxxxxxxxxxxxxxxxxxxx>
- Date: Thu, 6 Dec 2007 14:14:00 -0800
Thanks for your response David. I will probably go with the all of three
required roles installed on the same box.
--
Thanks
"David Graham" wrote:
I went with the second option that you have, a single server supporting.
everything. From what we were told, even internal users use the CAS role so
you will want that inside on a machine easily accessible. I'm a little
worried about security but I have been watching it pretty closely and have
locked down as much as possible on the firewall to help. I went off the
Microsoft notes on the ports.
We have 300 users with about 60 attacheing externally with multiple types of
phones and desktops, so you should not have an issue. Exchange 2007 actually
seems very fast compared to the Exchange 2000 world we upgraded from.
Good luck!
"John777" wrote:
I am going to deploy Exchange 2007 in our org pretty soon and wanted to get
some Experts advice before I do that.
Here’s our current network setup:
Exchange 2003 back-end server and Front-end server – sitting on the
perimeter network.
50 – users, ( with potential 50%growth in next couple of years). 20 of them
– remote, most of the time using OWA.
Single Domain, Two Domain Controllers running Win 2003 SP2– both are Global
Catalog Servers.
Forest, Domain Modes are 2003 native.
Hardware Firewall.
The new setup that I am thinking to go with is below:
Two Exchange 2007 servers with Windows 64 – bit Std. R2
No edge transport server will be deployed.
One Exchange server will have CAS and HUB transport roles, and another will
have Mailbox and HUB transport role also.
CAS will be located inside the network, not on the DMZ – this kind of
concerns me, as mobile users will be accessing CAS server directly from the
Internet? But I think that you have to have that server role deployed on your
internal network as it has to communicate with the Mailbox server directly?
I was also thinking to have just one server and put Mailbox, Hub, and CAS
roles on it.
But, I thought that there is going to be a lot of traffic from Mobile users
accessing CAS server as it uses Direct Push technology and also for
redundancy.
Does the above setup looks OK?
Thanks in advance
--
Thanks
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