Although programs create data spaces and hiperspaces, they do not own them. When a program creates the space, the system assigns ownership to the TCB that represents the program, or to the TCB of the job step task of the program, if you choose. You can assign ownership of the data space to the job step TCB by specifying the TTOKEN option on the DSPSERV CREATE macro. All storage within a data space or hiperspace is available to programs that run under that TCB and, in some cases, the storage is available to other users. When the TCB terminates, the system deletes any data spaces or hiperspaces the TCB owns. If you want the data space to exist after the creating TCB terminates, assign the space to the job step TCB. The job step will continue to be active beyond the termination of the creating TCB.
Because data spaces and hiperspaces belong to TCBs, keep in mind the relationship between the program and the TCB under which it runs. For simplicity, however, this chapter describes hiperspaces and data spaces as if they belong to programs. For example, "a program's data space" means "the data space that belongs to the TCB under which a program is running".