CICS directory structure for regions, servers, and clients (/var)

The following directories are added to the /var directory during CICS® installation and configuration:
Table 1. The /var directory structure
/cics_clients This subdirectory contains all the CICS client related files.
/cics_regions This subdirectory holds the directory structure for each region that is created on the CICS system.
  /region_name This subdirectory is created when the region is configured. It contains the following subdirectories and files:
    /bin This subdirectory contains the executable CICS application files.
    /classes This subdirectory contains the user's own Java and IIOP ORB files for use in the CICS environment.
    /console.number These sequentially numbered files are created by the region and contain important region messages. In addition, the files console.msg and console.nam are also located here and contain region information.
    /data This subdirectory contains various output files and statistics files, such as the CCIN.out, CPLD.out, CPLI.out, CSMT.out, CSZL.out, CRTI.out, and statsfile files.
    /database This subdirectory contains the resource definition databases for the following entities:
  • CD—Communications Definitions
  • FD—File Definitions
  • GD—Gateway Definitions
  • JD—Journal Definitions
  • LD—Listener Definitions
  • MD—Monitoring Definitions
  • OD—Object Definitions
  • PD—Program Definitions
  • RD—Region Definitions
  • TD—Transaction Definitions
  • TDD—Transient Data Definitions
  • TSD—Temporary Storage Definitions
  • UD—User Definitions
  • WD—Terminal Definitions
  • XAD—Product Definitions
Note: Do not attempt to edit any of the resource definition files directly. Instead, use the appropriate CICS commands to change, add, or delete entries in these files.
    /dumps This subdirectory contains the /dir1 subdirectory that stores transaction and system dump files.
    /environment This file contains the environment variables for the region.
    /log This subdirectory contains the region CICS log.
    /maps This directory contains the BMS map definitions. The following subdirectories are contained in this subdirectory:
  • /prime: This subdirectory is the default language directory that is examined after any language-specific directories are accessed by CICS.
  • /lang: These are language-specific subdirectories that are used by CICS.
    /region.properties This file identifies Java properties and classes that are running in the CICS environment.
    /region_restart This file is used for warm starting the region.
    /symrecsnumber These sequentially numbered files are created by the region when problems occur. They contain important information about symptoms of problems.
/cics_servers This subdirectory is created when the cicsdefaultservers command is run. It contains the following subdirectories:
  /cicsipc This subdirectory contains the lock file gs_lock which is used by processes to synchronize access to shared memory.
  /SSD This subdirectory contains Structured File Server (SFS) server resource definition databases and the SFS server-specific subdirectories. The SFS server-specific subdirectories, /var/opt/IBM/cics/cics_servers/SSD/cics/sfs/sfs_server_name, contain the working files for the SFS server, such as the key, lock, msg, and restart files.
  /SCD This subdirectory contains the SFS server schema definitions.
  /GSD This subdirectory contains the PPC Gateway server resource definition databases and the PPC Gateway server-specific subdirectories. The PPC Gateway server-specific subdirectories, /var/opt/IBM/cics/cics_servers/GSD/cics/ppc/gateway/ppc_server_name, contain the working files for the PPC Gateway server, such as the key, msg, and restart files.
  /archives This subdirectory holds CICS region archives.
  /backups This subdirectory holds backup data for the CICS region.
/cics_src This subdirectory contains a database that has dynamic information about the status of CICS regions and servers (SFS servers and PPC Gateway servers).
/cicssm This subdirectory contains all the CICS Workload Manager related files.