The cfsadmin command is used for managing CacheFS filesystems. A special version of the fsck command, fsck_cachefs is used to check the integrity of a cache directory. It is automatically invoked when a CacheFS filesystem is mounted. When mounting and unmounting CacheFS filesystems, the -t cachefs option must be used. For more information on these commands, see the cfsadmin(1M), fsck_cachefs(1M), and mount(1M) reference pages.
CacheFS filesystems are available if you are using the optional NFS software. They are described in detail in the ONC3/NFS Administrator's Guide, which is included with the NFS software option.