CacheFS Terms

The file system that is being cached. On HP-UX, NFS is the supported back file system.

The file system that contains the cached data. HFS is the supported front file systems.

A cache that does not yet have any data in its front file system. In this case, requested data must be copied from the back file system to the front file system (that is, the cache must be populated). An attempt to reference data that is not yet cached is called a “cache miss.”

A cache that contains the desired data in its front file system. In this case, the cached data can be returned to the user without requiring any action from the back file system. An attempt to reference data that has been cached is called a “cache hit.”