Use the data set size values to specify the size of newly created data sets.
The data set size is determined by the number of primary extents specified. The primary value is the number of desired blocks, tracks or cylinders which you select from the drop down "SPACETYPE" list. For example, if you select a SPACETYPE value of Blocks, then the value specified for Primary is a specified number of blocks. Likewise, if you select a SPACETYPE value of Tracks, then the value specified for Primary is a specified number of tracks. The secondary value is used when creating a data set if the primary value is not large enough.
The data set size values can be obtained from an SMS data class or you can specify the values.
If you did not specify an SMS data class on the first wizard panel, you are required to select a SPACETYPE entry and enter values for Primary and Secondary extents.
If you did specify an SMS data class set on the first wizard panel, then the data size values are obtained from the SMS data class. You can choose to override the obtained values by selecting "Use this value:", selecting a "SPACETYPE" entry, and entering values for "Primary" and "Secondary" extents.