DFS986A CANNOT OPEN SYSTEM DATASET-DD NAME-nnnnnnnn, RC=xx
Explanation
A DD statement was missing or a data set requires
formatting. During a restart with formatting, an I/O error might have
occurred in the data set indicated by nnnnnnnn.
Return code xx is defined as follows:
- Code (hex)
- Meaning
- 00
- This condition is normal.
- 04
- The DCB is already being opened or closed.
- 08
- The DCB is already open.
- 0C
- The DECBTYPE is invalid.
- 10
- A failure occurred in the IMS SVC. DCBWRK1 indicates the reason. See message DFS0730I for error subcodes.
- 14
- An I/O error occurred while the OSAM OPEN routine was scanning for a file mark, formatting, or writing a file mark. See DECBSTAT for additional information.
- 18
- An invalid RBN was calculated. The RBN is either 0 or greater than the maximum RBN for the data set. When multiple data sets are defined for the short or long message queue, the error might be caused by the incorrect space specification of the multiple data sets. See the topic on IMS.QBLKS, IMS.SHMSG/1-9, and IMS.LGMSG/1-9 in the installation information and the topic on message queue data set allocation in IMS Version 15.2 System Administration.
- 24
- An error occurred during EOV processing for the data set.
- 28
- While opening the Queue Manager system data set, an invalid ddname was found.
System action
IMS waits for another restart command to be entered.
Operator response
(master terminal) Reenter the restart command with BLDQ and FORMAT keywords, as appropriate.
Programmer response
Make sure that a DD statement exists for the referenced data set, and if DISP=OLD, the data set is available to the system.