This article was previously published under Q253216
This article has been archived. It is offered "as is" and will no longer be updated.
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 theMicrosoft Knowledge Base:
191014 XGEN: How to Obtain the latest Exchange Server 5.5 Service Pack
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.