Threadsafe is used if specified (in CICS resource definition) AND only threadsafe EXEC CICS calls are issued by the application. Once a non-threadsafe EXEC CICS is issued it becomes QR TCB scheduled instead of OTE. Other threadsafe requirements such as storage concurrent access are not checked by CICS and left as an exercise for the programmer.
On Wed, Jul 15, 2026 at 9:58 AM R Hey < [email protected]> wrote: > Hi, > We can control system dumps being taken in CICS by system parm DUMP=NO/YES. > True or False: > Using Threadsafe in CICS is not activated by a system parm, to say use it > or not; > but by making applications Threadsafe. > So, if your APP is Threadsafe, and CICS is not using FORCEQR; > then Threadsafe is being used, right? > Thanks, > Rez > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to [email protected] with the message: INFO IBM-MAIN > ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
