Error 694



Message text

An attempt was made to read logical page '%ld', virtpage '%ld' from virtual device '%d' for object '%ld' in database '%d'. The page was not read successfully. You may have a device problem or an operating system problem.


This error occurs when Adaptive Server tries to access an object but is unable to read the page mentioned in the message. Adaptive Server automatically issues a second read request to verify the consistency of the first read attempt. One of the following cases will be true:

In all cases, Adaptive Server writes the following message into the error log:

Suspect a Device or OS problem, %s

and raises error 694, resulting in a stack trace and breaking the connection to Adaptive Server.

This error indicates hardware or operating system problems.


Take the following actions to resolve the problem:

NoteOn the IBM Regatta platform, 694 errors may be encountered when you perform I/O operations on the IBM Regatta family of servers, which is caused by a cache line synchronization problem on this family of servers. See TechNote 1023360 at for details and the solution from IBM.

Additional information

Refer to the write-up for “Error 605” for a discussion of potential causes of hardware errors.

Versions in which this error is raised

All versions