DSNU415I `csect-name` INVALID OUTPUT BLOCK SIZE SPECIFIED DDNAME `ddname`

Explanation

Valid block sizes for an image copy or mergecopy data set are multiples of 4KB and less than the device limitation.

System action

Utility processing is terminated.

User response

Correct the JCL statement, or use the default. Resubmit the request in a new utility job step.

Severity

8 (error)