Examples of Cache Manager operations are fetching file data or the status information used to produce output for the UNIX ls command. The fstrace command interpreter defines an extensive set of Cache Manager operations as the cm event set . When the event set is activated, the Cache Manager writes a message to the cmfx trace log in kernel memory each time it performs one of the defined operations. If an operation of particular interest occurs, the administrator can afterward display the log on the standard output stream or write it to a file for later study. For more specific procedural instructions, see the AFS System Administrator's Guide .
All fstrace commands accept the following optional flag.
Prints a command's online help message on the standard output stream. Privilege Required To issue most fstrace commands, the issuer must be logged on as the local superuser root on the machine that is generating the trace log.