>>-+----------------------------------+------------------------><
   '-+-FREESPACE-+--(--CI--+-----+--)-'   
     '-FSPC------'         '-,CA-'        

FREESPACE specifies free space values for DFSMSdss-allocated target VSAM data sets. If this keyword is omitted, the control interval and control area free space are the same as the source data set.

CI

Specifies the percentage of freespace to be kept in each control interval during allocation of the data set.

CA

Specifies the percentage of freespace to be kept in each control area during allocation of the data set. When omitted, the control area free space is the same as the source data set.