I am getting ready to add EX2K7 to our domain with EX2K3 and transition. I've done quite a bit of research and am pretty comfortable with the process, I just have one question I haven't been able to find answers for, and hopefully you can help.
I currently use Backup Exec 10d (not compatible with EX2K7), so I am upgrading to 12.5, just haven't installed yet. When I install it, I purchased a 2k7 agent for the new software, not a 2k3, and only one. So, when I install 2k7 it will replicate my public folder store, so I can still backup as usual, without upgrading BE. Once I move my mailbox and a few other 'volunteers' to 2k7 how should I handle backups during the transition?
I'm assuming 2k7 will take complete control of that mailbox on the new server, so my old BE can't back it up. Am I right? Would it be safe to just do MS Backup of the mailbox DB on 2k7, until I'm ready to move the entire mailbox store over? (@150 users). Or, can I use the license for the 2k3 agent on BE and put it on the new install along with the agent for 2k7?
Is the replication between 2k3 and 2k7 just for public folders? I'd like to take my time with mailbox moves, I just don't want to have purchase another agent for BE just to be used for a week or two.
Secondly, since 2k7 uses active directory to store alot of the info that 2k3 would on it's own, does that mean my active directory DB is going to grow? If so any idea by how much? Since AD is stored on c: of the DC, I'm concerned about how large c: might get. I haven't checked yet, but can you change the location where the AD DB is stored?
Thanks for any help.