The JES2 entry of the program properties table (PPT) should indicate that JES2 is nonswappable because JES2 performs long-term page fixes. The program properties table should also indicate that JES2 is a started task and is exempt from data set name enqueue and cancellation. Further, to ensure appropriate security checks for data sets opened by JES2 on behalf of user-submitted jobs, the PPT entry for JES2 must include password protection (PASS). The entry for JES2 in the IBM-supplied program properties table looks like this:

PPT PGMNAME(HASJES20) NOCANCEL NOSWAP NODSI PASS SYST KEY(1) LPREF

For information about defining the JES2 entry in the program properties table, see z/OS MVS Initialization and Tuning Reference.