The MAXBLK= parameter specifies a value that is greater than the track size, greater than 32 kilobyte-8 (32760), less than 1 kilobyte (1024), or not a number.
The severity is 4.
IEBCOPY uses the maximum value as the maximum block size. Processing continues.
If a smaller maximum block size is required, specify or correct the MAXBLK= parameter.
Data Facility Product (DFP)
Note 11
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