problem importing PSTs into SBS 2011 / Exchange 2010
Posted on 2013-11-16
I am migrating a small system from sbs 2003 to sbs 2011.
Because it is a small network, I exported all email as PST files from each mailbox on the old (2003) server.
I compared the size of each exported PST to the size listed in ESM for each mailbox, to have some level of satisfaction that everything had exported correctly.
Now, on the new system (sbs 2011) I am importing the PST files back into exchange via outlook.
I am comparing the size and item count reported by Exchange management Shell, commands:
Get-Mailbox -ResultSize Unlimited | Get-MailboxStatistics | Sort-Object TotalItemSize -Descending | Select-Object DisplayName,TotalItemSize -First 30
Get-Mailbox -ResultSize Unlimited | Get-MailboxStatistics
And I am having some major descrepancies, for example, I just imported a particular mailbox, it was originally 13GB and 52800 items (As per exchange 2003 ESM). After import to the new system, Exchange Shell is showing 8.6GB and 40000 items.
I have imported several times with the same result, I also get a warning from outlook - some items could not be imported.
If I open the PST in outlook, alongside the mailbox, I can also see, as an example, the inbox on the mailbox has 20,000 items, but the inbox on the PST has 30,000 items.
I am running ScanPST now on the exported PST. Any other ideas on where I should start troubleshooting?