Actually I have been using Exchange 2003 since long but now I want to migrate to Exchange server 2010. I will run it on a VM and right now I have about 70 enabled working mailboxes. What I am going to do is to run an installation with HT, mailbox role and CAS on the similar server.
I am going to start the process further but I am kind of unsure as whether I would be able to move all the mailboxes at once without disturbing working of client mailboxes. The database is pretty large in size so I am doubtful regarding the security of database while performing migration process. Although I have taken the latest backup in case any mishap occurs.
I can even take a third party tool if it has the required features that I am looking for and the one which can perform entire migration procedure flawlessly. I have done my homework i.e. read about the distinct tool available online but I want to know if any of you have any experience with a extraneous software? If yes can you recommend me something?
Thanks in advance