CBR6410I Tape drive dynamic deallocation failed for ddname=ddname. {OAM | SVC99} return code=return-code, reason code=reason-code.
Explanation
An error during MVS™ dynamic deallocation processing prevented the successful deallocation of a tape drive which was in use by OAM. The ddname ddname, return code return-code and reason code reason-code are internal information which is included in this message for diagnostic purposes only.
System action
The request for which the device was originally allocated has already been completed. The device has not been deallocated, so it appears to be in use by OAM even though OAM is no longer using the device.
The error will not directly affect OAM processing since OAM allocates devices using the SVC99 dynamic device allocation service. However, if this error occurs multiple times, devices which were previously in use by OAM will still appear to be in use by OAM, and this will limit the processing capability of the installation because devices which are really available for use will appear to be busy.
Operator response
Notify the system programmer. Tape drives left allocated but unusable may be made available by stopping and restarting OAM.
System programmer response
If the problem recurs and if the program is not in error, search problem reporting databases for a fix to the problem. If no fix exists, contact the IBM® Support Center.
Source
Object Access Method (OAM)
Routing Code
2,3,5
Descriptor Code
4