DFS301A UNABLE TO OPEN DDNAME-`ddname`

Explanation
 The issuing utility program was unable to open
a DCB with the ddname specified in the message.

System action
 Processing is terminated with a nonzero return
code.

Programmer response
 Ensure that all necessary DD statements
required for execution are supplied. Correct any missing JCL statements,
and resubmit the job. See abend code 0302.

Problem determination
 2, 3, 8, 18, 20, 35. Also, if this message
was produced while running under the Utility Control Facility, rerun
the job with a FUNCTION=OP,MSGNUM=301 control statement in the DFSYSIN
data set. You must supply a SYSUDUMP DD statement in this step.

Module
 DFSPIRP0, DFSUCMN0, DFSUCP40, DFSUC150, DFSUC350, DFSUDMP0,
DFSURDB0, DFSURGL0, DFSURGU0, DFSURRL0, DFSURUL0, DFSUTR20, DFSUTR30

DFS301A UNABLE TO OPEN DDNAME-ddname

Explanation

System action

Programmer response

Problem determination

Module

DFS301A UNABLE TO OPEN DDNAME-`ddname`