Create the
User Name Server PDSE,
for example using option 3.2 on ISPF. The name of the PDSE must be the same
as the JCL variable
++COMPONENTDATASET++. Allocate a data
set with:
- Eight directory blocks
- 15 tracks (or 1 cylinder) of 3390 DASD with a record format of fixed blocked
80
- A suitable block size (for example 27920)
- A data set type of library