HFS or zFS target volume

This is a user-maintained volume and may be SMS-managed. This volume is not overlaid when unloading the ServerPac or SystemPac (dump-by-data-set format) HFS or zFS data sets. However, the data in the z/OS® UNIX file system will be overwritten by the installation of service or the installation of z/OS with CBPDO. Therefore, you must ensure that you have a copy of your z/OS UNIX file system before you install into it. See z/OS UNIX System Services Planning for more information about installing service into the z/OS UNIX file system.

The recommended types of data sets (file systems) for the HFS or zFS target volume are:
  • HFS or zFS data sets for z/OS elements or features that install into a z/OS UNIX file system
  • HFS or zFS data sets for products that run on z/OS, except data sets containing customization data (which would be on the HFS or zFS customization volume)
  • User-defined HFS or zFS data sets (the CustomPac Installation Dialog allows user-defined data sets to be defined as HFS or zFS)
  • User catalog for HFS or zFS data sets on this volume if the volume is SMS-managed

You can combine the HFS or zFS target volume and your TVOL2-n volumes if you wish. You might want to combine them if the products they share are migrated on the same boundary and there is enough space on the TVOL2-n volumes for the HFS or zFS data sets.