VMRMDS, the Minidisk Scanning utility, creates output files that provide a snapshot of your system at the time the utility was run. These files provide the empirical data used by the VMRMUA, VMRSDA, and VMRMCA utilities.
Because the output files are a snapshot, they become outdated as your system changes. For best results, you should run VMRMDS to generate up-to-date files immediately before you run the VMRMUA, VMRSDA, or VMRMCA utilities.
If VMRMDS encounters link errors or other problems, the utility creates diagnostic files.