Hi,

I have an odd question. I am migrating a user from exchange 2010 to 2013 I can see that the statistics of the user are as follows:

The catch is that the user is restricted to a 2GB mailbox size limit. So where did the extra 10GB come from?

please check the folder size using the below cmd ?

Get-MailboxFolderStatistics <user name> | Select Name,FolderSize,ItemsinFolder

Hi,

The data migrated contains two large things I can think of: Personal archive mailboxes and corrupted items.

And corrupted items are most likely to lead to greater 2G.

We can cheek this problem after migration completed.

Mailbox moves in Exchange 2013

https://technet.microsoft.com/en-us/library/jj150543%28v=exchg.150%29.aspx?f=255&MSPPError=-2147217396

Best Regards.

• Edited by Lynn-LiMicrosoft contingent staff, Moderator 21 hours 46 minutes ago

Hi,

The data migrated contains two large things I can think of: Personal archive mailboxes and corrupted items.

And corrupted items are most likely to lead to greater 2G.

We can cheek this problem after migration completed.

Mailbox moves in Exchange 2013

https://technet.microsoft.com/en-us/library/jj150543%28v=exchg.150%29.aspx?f=255&MSPPError=-2147217396

Best Regards.

• Edited by Lynn-LiMicrosoft contingent staff, Moderator Monday, March 30, 2015 9:37 AM

I think you are correct. It turns out the mailboxes are corrupted and could not be migrated. However exchange 2013 sat there for 2 days copying data endlessly. I only found out they were corrupted when I viewed the event logs on the 2010 server.

I think, the Exchange 2013 get all the data on the mailbox and the .pst , when i look the mailbox data in the exchange always the .pst have the complete space showed on Exchange.