DSNT504I UNLOAD DATA SET ddname BLOCKSIZE SET TO nnnnn.
Explanation
The block size for the SYSRECnn or SYSPUNCH data
set was one of the following:
- Not specified in the JCL
- Set to zero in the JCL
- Less than the required record length
- Not an even multiple of the required record length
System action
DB2® sets the block size of the unload data set to the value specified in the message text.