Kent State University
Large Systems Technology
How to Allocate a Dataset
1. From the ISPF/PDF PRIMARY OPTION MENU, select 3 (UTILITIES) then 2 (DATASET) from the "Utilities" menu.
2. On the resulting DATASET UTILITY panel, enter the TSO dataset identifier for the dataset you want to allocate (create).
Put an "A" in the command line. 
3. Press <ENTER>. This will give you the ALLOCATE NEW DATA SET panel on the next panel.

4. Go down to the DIRECTORY BLOCKS entry and put in "1". This will make the new dataset a library (PDS) rather than a simple flat file.
Hit the <ENTER> key and this will allocate a new ISPF library called INSGSH1.JCLJOBS.CTRL with 4 cylinders of space and records of 80 bytes each. (Remember, the high-level qualifier will be YOUR UserID.)
5. Do PF3 to get to the DATA SET UTILITY panel, then <ENTER> (with the command line blank) to display all the information on the dataset you just created. Notice that it is a "PO" (Partitioned Organization) (library) type of data set and that, initially, it contains no members.
6. Enter PF3 three more times (slowly) to get back to the ISPF/PDF PRIMARY OPTION MENU.