DALDIR specifies the number of blocks to be contained in the directory of a partitioned data set. You may also specify a space type key (DALBLKLN, DALCYL, or DALTRK) and the primary quantity key (DALPRIME) when coding DALDIR. With SMS, the number of blocks that you specify with DALDIR overrides the number that is specified in the data class of the data set. When you code this key, # must be one, LEN must be three, and PARM contains the number of directory blocks.
KEY # LEN PARM
000C 0001 0003 00 00 02