The next time an application program asks for data from the file, the Cache Manager notices the broken callback and retrieves an updated copy of the file from the File Server. Callbacks ensure the user is working with the most recent copy of a file. Cell An independently administered site running AFS, consisting of a collection of file server machines and client machines defined to belong to the cell. A machine can belong to only one cell at a time. Client Machines Computers that perform computations for users.
Users normally work on a client machine, accessing files stored on a file server machine.
Command A string of characters indicating an action for an AFS server to perform. For a description of AFS command syntax, see Appendix B, AFS Command Syntax and Online Help . Command Suite A group of AFS commands with related functions. The command suite name is the first word in many AFS commands. The names of the directories are separated by slashes.