Managing Systems and Workgroups: A Guide for HP-UX System Administrators

Configuring a System
Setting Up the Online Manpages
Chapter 3266
You only need to create the cat8.Z directory if
/usr/share/man/man8.Z exists. To save disk space, make sure you
use the cat*.Z directories (not cat*) because if both cat*.Z and
cat* exist, both directories are updated by man.
To save disk space, you can NFS mount the manpages on a remote
system.
Regardless of how you set up the manpages, you can recover disk space
by removing the nroff source files. (Caution: Before removing any files,
make a backup of the man directories you created in case you need to
restore any files.) For example, to remove files for section 1 in
/usr/share/man, enter:
rm man1/*
rm man1.Z/*
This concept for recovering disk space also applies to localized manpages.
For further details, see man (1) and catman (1M).