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Huge Mailboxes Migrating

Posted on 2006-07-07
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Last Modified: 2012-06-27
Im migrating email from one exchange box to another via just moving the mailbox in the system manager.  Everything is going soothly until I get to the big mailboxes.  We have attorneys here at our firm who refuse to delete or save anything.  The mailboxes are at the largest 10GB.  What is the best way to move this mailbox.  Backup and restore?
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Question by:Matt Pessolano
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Expert Comment

by:Sembee
ID: 17061823
The only way you would be able to restore a mailbox of that size would be to move all of the large mailboxes in to their own database. Then backup that database and restore it elsewhere. You would then have to remove the Exchange attributes from the original accounts and attach them to the newly restored accounts.

Does move mailbox fall over? It isn't very good at telling you what is happening, so you may just be inpatient. I have moved 2gb or more mailboxes and they have gone across fine.

Simon.
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Author Comment

by:Matt Pessolano
ID: 17061863
well i have tried moving them and i was patient.  but i get an error at the end saying there were bad items..what does that mean.  the other 60 mailboxes were perfect
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Expert Comment

by:Sembee
ID: 17061905
There could be bad items.
If the mailbox is 10gb then I would say there is a good chance of there being at one or two bad items in the mailbox.

Simon.
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Author Comment

by:Matt Pessolano
ID: 17074963
I reduced the mailbox doen 1.3GB.  I still try and do the move and am getting and error reporting bad items.  Is there a tool or anything I can use to scan the mailbox?  What is a bad item?
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Accepted Solution

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Sembee earned 500 total points
ID: 17075904
As you down below 2gb, try exmerge the contents out.
The bad item could be anything - but I expect it will be a piece of spam or something with an attachment.

Simon.
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