Hallo Meischen,
da brauchst Du folgendes dazu:

Restrictions:

* To use this command, you must be signed on as QPGMR, QSYSOPR, QSRV, or QSRVBAS, or have use (*USE) authority to the user profile of the job being serviced.

http://publib.boulder.ibm.com/infoce.../strsrvjob.htm