RE: Upgrading from Ex5.5 to Ex2003

  • From: "Deshwal, Chand" <CDD@xxxxxxxxxxxxx>
  • To: "[ExchangeList]" <exchangelist@xxxxxxxxxxxxx>
  • Date: Fri, 18 Feb 2005 16:12:25 +0530

Go for swing upgrade. Install Exchange 2K3 on a separate machine in the
same organization. Move mailboxes from 5.5 to 2K3. Make a fresh install
on your old server of the OS and exchange 2k3. Move mailboxes back.
You can install an aditional 5.5 in the same organization as rollback
machine as contingency before starting the whole procedure.


From: Uchay [mailto:uchay@xxxxxxxxxxx] 
Sent: Friday, February 18, 2005 4:09 PM
To: [ExchangeList]
Subject: [exchangelist] Upgrading from Ex5.5 to Ex2003

Hello Everyone,
My company is about to upgrade our Exchange server but the upgrade
method is giving us headaches. I'll like some advice regarding which
method would be less problematic for us. A month ago we tried an
in-place upgrade of Ex5.5 to Ex2000 which failed forcing us to rollback
to Ex5.5. Based on advice received we have decided to upgrade directly
to Ex2003 bypassing Ex2000.
In-Place upgrade - we upgrade the existing 5.5 server to Ex2003.
Swing Upgrade - we deploy an Ex2003 server into the existing site, and
move mailboxes from the Ex5.5 to it; upgrade the old Ex5.5 server and
move the mailboxes back.
My organization has a single site; double server configuration with just
over 2000 mailboxes and we are running a mixed-mode Windows domain.
Help please.
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