XADM: Online Backup Does Not Detect Corruption on a Multiprocessor Computer if Buffer Size Is Larger than 64 Kilobytes

If you use a backup program on a multiprocessor computer that uses a buffer setting of more than 64 kilobytes (KB), the backup program does not detect a corrupted page during the online backup. The database is backed up successfully, even though it is corrupted.

The online backup program successfully detects the corrupted page on a single processor computer, regardless of the buffer setting.

To resolve this problem, obtain the latest service pack for Exchange Server 5.5. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

Microsoft has confirmed that this is a problem in Microsoft Exchange Server version 5.5. This problem was first corrected in Exchange Server 5.5 Service Pack 4.