Suppose I am writing with QSAM/BSAM to a UNIX file allocated RECFM=FB,LRECL=80,FILEDATA=BINARY,PATH=... Should I specify: o BLKSIZE=80 for minimum latency for other jobs doing "tail -f"? o BLKSIZE=32720 for fewest costly access method calls? o BLKSIZE=0 and trust SDB (which will probably use 1/2 3390)?
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