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E2K3 Mailbox Movement on E2K10

Hi,
My current mailing infra is running on Exchange 2003 enterprise edition with SP2. now we are planning to upgrade it and already upgrade OWA to CAS 2007 but i m planning to install mailbox server on exchange 2010 as DAG is far better than CCR so my question is

Can i move my existing exchange 2003 maiboxes directly on exchange 2010 ?

AmonPereira

Yes you can move them.

But it might be a better idea build a CAS 2010 instead of CAS 2007, because you are going to migrate to Exchange 2010.

Pay attention on server installation order, CAS, HUB, MBX and others.

About DAG, it must be installed into Windows 2008 Enterprise Edition and Exchange 2010 EE too, cause failover clustering is needed.

Let me know if it helped you.

pdixit1977

ASKER

thanks amon but i have license for 2007 only so i can't migrate my CAS 2007 to 2010. Procurement for mailbox server is still pending so i asked my procurement team to purchase 2010.
Additionally i confirmed from many guys that 2010 standard edition supports DAG however 5 database per server limitation is there which is not a bottleneck for me.

Your thoughts ?

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AmonPereira

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pdixit1977

ASKER

Great help, thanks amon

pdixit1977

ASKER

one more thing i forgot to ask.

Can we use the mailbox during movement from E2K3 to E2K10 ?
like my mailbox is 1 GB in size and it will take some time to move since 2003 and 2010 servers are placed at different geographical locations so will i be able to use my mailbox during movement.