The record format indicates variable, but the lrecl or blksize is not valid. This failure occurred trying to open an existing OS file for write.
Correct the mode argument. The lrecl for a variable record format data set must be at least 4 or equal to X. The blksize must be at least 8 or 0 and no more than 32760. The value lrecl=X is sometimes used for spanned data sets.
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