EDG6103E

Explanation
The data set identified by the ddname in
the message could not be opened.
In the message text: ddname
The data definition name.
vsam_return_code
The return code from VSAM while attempting to open the MASTER
DD file. 
vsam_reason_code
The reason code from VSAM while attempting to open the MASTER
DD file. 

System action
The program fails.

Operator response
None.

Programmer response
Identify the cause of the error from the
system messages issued. Correct the error and resubmit the program.
See z/OS DFSMS Macro Instructions for Data Sets for
additional information about the VSAM return codes and reason codes
that appear in the message text.

Source
DFSMSrmm

Module
EDGBKUP

Routing code
11

Descriptor code
7