Block length specification - Key = '0009'

If you do not code DALAVGR, DALBLKLN specifies the average data block length the system will use when computing the amount of space to allocate.

If you do code DALAVGR (with SMS), DALBLKLN specifies the average record length in bytes of the data. The system computes the block size and the number of tracks to allocate.

You must also specify the primary quantity space key (DALPRIME) or the secondary quantity space key (DALSECND) when you code this key. The text unit keys that request space in terms of tracks (DALTRK) or cylinders (DALCYL, DALROUND) should not be specified with DALBLKLN. When you code this key, # must be one, LEN must be three, and PARM contains the average data block length or average record length. The maximum PARM value is '00FFFF' (65,535).

Example: To specify an average data block length of 80 or an average record length of 80, code:

KEY    #      LEN    PARM
0009   0001   0003   00 00 50