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Exchange 5.0 to 5.5 Migration

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by Member 29712568

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I ahve an Exchange Server 5.0 that has outgrown the disc space on the Server. I have another server that i wish to move exchange onto..however migrating to 5.5 as the samne time as moving.
Does anyone have a procedure for doing this as I hear of many 'horror' stories when such a migration goes horribly wrong.
Procedure such as: do I set the second server up in the same orgnisation? What do i migrate first?
Are threr any resources / tools available.

5 replies

by jabulani

Before you upgrade, BACKUP!
When you upgrade from 5.0 to 5.5 it is relatively straight foraward and requires you to run the setup program.

There are two ways to upgrade. Standard upgrade upgrades IS files a chunck at a time in their current location. If setup fails you will need to restore from backup before you can continue or revert to the old version.

Fault tolerant upgrade converts one database at a time making a backup copy of each before conversion. When setup completed the backup copy is deleted and replaced with the upgraded file. If setup fails you can reboot and run setup again, it will pickup from where it left off.

Upgrading can take a while but setup will estimate the time for you so you caqn decide whether to continue with the process.

It's a good idea to scour the Microsoft Knowledge base online.

by tony.colgrove

The most straight forward approach is to install the Exchange5.5 server into the same Organization and Site as your 5.0 server. You can then simply Move mailboxes through the Exchange Admin Program.
You will need to Replicate all Public folders tothe new server. Also there are a few "house keeping" procedures to do before removing that first server from the Organization. I cant remember the MSKB article off the top of my head but do a search against "remove first server" for Exchange 5.5 and eariler versions.

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