Specifying input parametersUsing LCDS Print Description Language 2-17BLOCKPOSTAMBLEparameter: pointsto note• If the block delimiter string constant is specified, the blockpostamble is ignored.• The POSTAMBLE parameter may be overridden if RECORDSTRUCTURE is changed through tape label processing.BLOCK PREAMBLESpecifies the length of the operating system portion of the block;that is, the byte offset from the first byte of a tape block to the firstbyte of the first logical record.Syntax BLOCK PREAMBLE = lengthOptionsDefault 0BLOCK ZEROSpecifies the End-of-block indicator.Syntax BLOCK ZERO = {NO | YES}OptionsDefault NOTable 2-13. BLOCK PREAMBLE parameter options and definitionsOption Definitionlength An integer in the range of 0 to the block length that specifies the number ofbytes from the first byte of the tape block to the first byte of the first logicalrecordTable 2-14. BLOCK ZERO parameter options and definitionsOption DefinitionYES Specifies that the end of a tape block is indicated by a value of 0 in the recordlength field (before applying the record length adjustment). Data that follows therecord is ignored through the end of the block.NO Indicates that the end of a tape block is not indicated by a value of 0 in therecord length field.