Z/OS
The normal behavior, is the product can allocate up to 10 dynamic PSB libraries. The format of the Data set name is
[ZPREFIX.]ZUSER.CAWKEB#n.ASYSID.PSBLIB
The data set name for a given user may vary depending on
- The user's PREFIX setting of his ISPF session
- The System user is executing in.
- n is a value in the range 0-9
When one of these PSB libraries exist the product increments n in order to generate the next Library name.