DFS3128A OPEN FAILED ON RESTART DATA SET, xxxxxxxx.

Explanation

OSAM was unable to open the restart data set. The variable xxxxxxxx has one of the following values:
IMSRDS
The error occurred on the data set defined by the IMSRDS DD statement.
IMSRDS2
The error occurred on the data set defined by the IMSRDS2 DD statement.
IMSRDS2 NOT DEFINED
The IMSRDS2 DD statement is invalid or missing.

System action

If an XRF alternate system is being started, abend U0970 with RC=1 occurs. If this message is issued by the Fast Database Recovery region, abend 0574 occurs. Any other IMS start terminates, and IMS waits for another /START command.

Operator response

(master terminal) See the Programmer response for the appropriate action.

Programmer response

If the problem is not in the system hardware or software (for example, the JCL is in error or the data set is not formatted), the restart data set must be reallocated. The subsequent IMS must format the restart data set. In an XRF and Fast Database Recovery environment, only the active system can format the restart data set.

Problem determination

1, 2, 3, 4, 35