Why is my Datacom application program failing with return code VNA when SYSINITI call is issued through DDCALL?
Datadictionary requires VPE which is a component of CA IPC.
Return code "VNA" means that VPE is not available.
The CA IPC load library will contain the VPE modules, including VPE9864 which is the 24bit bootstrap for DDCALL.
Any CA Datacom MUF requires CA IPC, so you can check the MUF's STEPLIB concatenation for VPE* and VTMP* modules to locate the CA IPC load library.
Refer to the CA Datacom/DB Message Reference Guide
VNA is documented in the CA Datacom/DB Message Reference Guide, as follows:
VNA VPE NOT AVAILABLE
The address for the Virtual Processing Environment (VPE) bootstrap (VPE9864 for z/OS or VPE9874 for VSE) was not resolved at execution time.
Relink application program with appropriate VPE bootstrap. See the sections on link-editing in the CA Datacom Datadictionary DSF Programming Guide.
Refer to the CA Datacom Datadictionary DSF Programming Guide