NFS Services Administrator's Guide

Configuring and Administering a Cache Filesystem
CacheFS Terms
Chapter 4150
CacheFS Terms
The following CacheFS terms are used in this chapter:
back filesystem The filesystem that is cached is called the back
filesystem. HP-UX currently supports only NFS as the
back filesystem type.
front filesystem The local filesystem that is used to store the cached
data is called the front filesystem. HFS and VxFS are
the only supported front filesystem types.
cold cache File data that has not yet been cached in a front
filesystem is called the cold cache.
cache miss An attempt to reference data that has not been cached
is called a cache miss.
warm cache A cache that contains data in its front filesystem is
called a warm cache. In this case, the cached data can
be returned to the user without requiring any action
from the back filesystem.
cache hit A successful attempt to reference data that has been
cached is called a cache hit.