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Exchange 2003 Restore for Large Mailbox (8GB)

Posted on 2009-07-02
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Last Modified: 2013-12-01
I am trying to restore an 8GB mailbox from an information store backup (not brick-level).

I have restored the information store to the recovery storage group, but when I use ExMerge to export the mailbox to a PST it only exports a little over 2GB worth, and I can't open it in Outlook.

I tried running PST2GB and SCANPST on the PST but it still won't open, and I don't think it's even exporting correctly with ExMerge b/c it should be around 8GB not 2GB.

What is the correct way to restore large mailboxes if not creating PST's with ExMerge?
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Question by:ob1_
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by:banstett
ID: 24765819
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by:ob1_
ID: 24765921
This would recover all the mail back into the original mailbox without prompting - which I can't do b/c its the COO and I just need a few calendar items.
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by:Mestha
ID: 24767552
Exmerge has a limit of 2gb.
Therefore I think your only option is to use the above Technet article and recover the whole mailbox, but choosing the option to COPY the data. That will create another folder in the mailbox to get the data from.

Then invest in some archiving software to get the size of the mailboxes down.

Simon.

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by:ob1_
ID: 24767559
ok - so if the user has a dozen subfolders, and I just to copy the data back into the mailbox - how do the new folders get created? all within a restore subfolder?
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by:Mestha
ID: 24780308
All data should be created under a single folder, which will allow you to pick and choose what is moved back in to the live mailbox. However you will see the size of the mailbox balloon from 8gb to 16gb, so you may want to ensure that the user is NOT running Outlook anywhere when you do the recovery, you use Outlook "live" - ie not cached mode to the do the recovery, and then you HARD delete the content that you do not want immediately (shift DEL).

While you are wasting a lot of data, to put it simply 8gb mailbox is very large and an archiving solution of some kind will make them easier to handle.

Simon.
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ob1_ earned 0 total points
ID: 24984445
I created a new mailbox and redirected the Exchange set to this, so I could restore w/o affecting the COO's mailbox.
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