How to troubleshoot a Msg 823 error in SQL Server

http://support.microsoft.com/kb/2015755

To start, SQL Server 2008+ contains a system table called SUSPECT_PAGES that maintains information about suspect pages and their error states. This will help scope the problem and perhaps provide some history about other errors that led up to this event.

http://msdn.microsoft.com/en-us/library/ms191301.aspx

http://msdn.microsoft.com/en-us/library/ms174425.aspx

You'll also want to run a consistency check on the disk storage system containing your database files. Rather than just data file corruption, your disk hardware in general may be failing.