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How to Install CA CSM › Prepare for Installation › Set Up USS Paths

Set Up USS Paths

CA CSM can use HFS or zFS file systems for its download, installation, setup, and general usage.

Note: We recommend using zFS file systems. For information about how to migrate from HFS file systems to zFS file systems, see the latest IBM z/OS Migration guide.

Before you download and install CA CSM, your USS administrator must set up directory paths and optionally configure file systems for these files. You can set up the paths in a single file system or multiple file systems, depending on the policy at your site.

Note: We recommend that you set up your USS file system using a multiple file system structure.

Minimally, you require four directories with 775 permissions.

During operation, CA CSM dynamically creates and mounts additional file systems. File systems are mounted during startup, and as a product and maintenance are downloaded.

For a zFS file system to grow dynamically, specify AGGRGROW when you mount the file system. For example: 

MOUNT FILESYSTEM('yourHLQ.MSM.ZFS') -
     MOUNTPOINT('/parent_path/msmserv/version_number/msm')            -
     TYPE(ZFS)                                -
     MODE(RDWR)                               -
     PARM('AGGRGROW')                         

For more information, see the IBM Distributed File Service zFS Administration.

CA CSM uses the following z/OS UNIX System Services (USS) directory path structure:

/parent_path/msmserv/mpm
/parent_path/msmserv/version_number/msm
/parent_path/msmserv/version_number/msmruntime
/parent_path/msmserv/version_number/msminstall

Note: The /mpm directory should not have a version number. This is a common directory that is shared between CA CSM versions.

/parent_path/msmserv/

Specifies the CA CSM parent path name as defined at your site as the primary mount point or directory, for example, one of the following:

/u/users/msmserv
/usr/lpp/msmserv
/cai/msmserv

Note: We recommend that you use /msmserv as the final portion of the parent path; however, you can change it if necessary for your site standards.

/parent_path/msmserv/mpm

Specifies the mount point for file systems that CA CSM allocates and mounts. The mount point is the directory that CA CSM uses to mount the software catalog root application file system. You specify this path in the MountPath keyword of the options file.

Note: If you are an existing CA CSM customer and are upgrading, you do not need to create this path. The upgrade process reuses the previous version path by default.

/parent_path/msmserv/version_number/msm

Specifies the directory for target USS files for CA CSM products. The content is managed through SMP/E.

Space: 750,100 cylinders

/parent_path/msmserv/version_number/msmruntime

Specifies the directory for CA CSM runtime files, that is, the directory that the running CA CSM application executes from. You specify this path in the RunTimeUSSPath keyword of the options file.

Space: 750,100 cylinders

/parent_path/msmserv/version_number/msminstall

Specifies the directory for CA CSM installation data, including all downloaded and unpacked CA CSM files.

Space: 1000,100 cylinders

Note: This directory can be deleted after the installation is completed.

Note: For more information about how to set up USS paths for multiple versions of CA CSM, see the Best Practices Guide.

Using a Single File System

We recommend that you set up your USS file system using a multiple file system structure. However, if you must structure your USS file system as a single file system, ensure that it contains all of the space that is required for the product installation and ongoing operations.