CICS® requires
access to z/OS UNIX System Services, and to directories and files in the hierarchical
file store (HFS), for the purposes of:
- Creating JVMs.
- Using HFS files in connection with CICS Web support.
One possible method to achieve this is as follows:
- Choose a RACF® group that all your CICS regions can use to access z/OS® UNIX,
and give a z/OS UNIX group identifier (GID) to this RACF group. Give a z/OS
UNIX user identifier (UID) to each CICS region user ID, and make sure that
each CICS region user ID connects to the RACF group that you chose. During
this process, set up a home directory on HFS for each of your CICS regions. Giving CICS regions a z/OS UNIX user identifier (UID) and group identifier (GID) and setting up a home directory tells you how to do all this.
- Identify the files that each CICS region needs, and the HFS directories
that contain the files. For each directory and file, specify the group for
the directory and file as the RACF group that the CICS regions use, and give
the group the appropriate permissions. Giving CICS regions permission to access HFS directories and files tells
you how to do this. You will need to repeat this task when you tell a CICS
region to use any other files or HFS directories.
If you need more general information about RACF facilities for
controlling access to z/OS UNIX System Services, see the z/OS Security
Server RACF Security Administrator's Guide, SA22-7683. If you need
more general information about the UNIX facilities that you can use to control
access to HFS files and directories, see z/OS UNIX System Services Planning,
GA22-7800.