See http://www.symantec.com/docs/TECH228970
Error you will see is :
Cannot insert the value NULL into column 'MbxIdentity', table 'EnterpriseVaultDirectory.dbo.PstMigrationHistory'
To 'workaround' perform following:
Run the query in the KB-article. If the number is not 0, run the below:
USE EnterpriseVaultDirectory
Select PSTMigrationHistoryEntryId FROM PSTMigrationHistory
WHERE ExchangeMailboxEntryId NOT IN (SELECT ExchangeMailboxEntryId FROM
ExchangeMailboxEntry)
Then delete the rows with the PSTMigrationHistoryEntryID fond above:
Delete from PSTMigrationHistory where PSTMigrationHistoryEntryID = 'value found in query above'
This might not be the official solution, but it works for us. For the upgrades to come, we run the query from the KB-article, and fix when the number returned is not 0.
