MFMDS041E VSAM open error DD-ddname RC=nnFB=nnn

DSS has detected an error while attempting to open a VSAM data set. This message is accompanied by the z/OS system message IEC161I to describe the problem further. Common return code (RC) values and feedback code (FB) values include:

RC FB Description
4 116 Warning: file was not closed properly after previous use and has not been recovered using an internal VSAM verify
118 Warning: file was not closed properly after previous use but has been recovered using an internal VSAM verify
8 128 No DD statement was found for this file
136 Not enough virtual storage to complete the open processing
144 I/O error while reading the catalog
152 RACF denied open access
160 Inconsistent open options specified
168 File already open by another user

For a full list of return codes and reason codes see the IBM publication DFSMS/MVS Macro Instructions for Data Sets. VSAM system messages are documented in the IBM manual z/OS System Messages Volume 4.

For a full list of abend codes and reasons, see the IBM manual MVS System Codes.