Multiple Work Directories

SAS can make the distribution of Work libraries dynamic by distributing Work libraries across several directories. This functionality eliminates the potential problem of filling up a single volume with all of the Work directories.
The WORK system option contains the PATHNAME argument, which can be a directory, or a file that contains a list of directories, that SAS can use for allocating Work libraries. Individual Work libraries will still reside in a single directory. You can use the WORK system option in a configuration file or in the command line.
When the argument to WORK is a list of directories in a file, you can specify a method for choosing which directory to use for WORK. If you specify METHOD=RANDOM, then SAS chooses at random a directory from the list of available directories. If you choose METHOD=SPACE, then SAS chooses the directory that has the most available space.
For more information, see WORK System Option: UNIX.