Temporary File System

A TFS is a temporary in-storage file system that delivers high-speed I/O for temporary files, which can be useful for large systems with many shell users. It is an alternative to having a /tmp data set that uses DASD. The drawback to making /tmp a TFS is that if the system crashes, all temporary files, including those created by the vi editor, are lost.

A TFS can run in the kernel address space or in a colony address space (either an existing one or one that you will create). If you choose to add a TFS file system, you will decide later whether to run it in the kernel or in a colony address space.