Assume that you enable Transparent Data Encryption (TDE) for a database in Microsoft SQL Server. Then, you back up the database by using the BACKUP DATABASE Transact-SQL statement that has a large value specified for the MAXTRANSFERSIZEoption.
When you try to get the backup header information of the TDE compressed backup by using the RESTORE HEADERONLY Transact-SQL statement, the statement takes longer than expected to finish.
The fix for this problem is included in the following update for SQL Server:
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Each new build for SQL Server contains all the hotfixes and security fixes that were in the previous build. We recommend that you install the latest build for your version of SQL Server:
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
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