DFHFCVS

DFHFCVS is the CICS file control program that provides file services for application programs and for other CICS modules. DFHFCVS is called by DFHFCP and performs the following functions:

  • Acquiring and releasing of the file storage by storage control

  • Communicating with files defined in the file control table

  • Logging of changes to these files by DFHFCJL and journal control

DFHFCVS handles requests that access data in VSAM files. It also services requests for both CICS-maintained and user-maintained tables. Requests that access BDAM data are passed to DFHFCBD.

Reference Sources

CICS Transaction Server for z/OS Diagnosis Reference