The file definition, area, and key properties define the physical
    characteristics of a Record Management Services (RMS) database
    file.

    In most cases, the properties correspond to the RMS file and
    allocation control field blocks (FABs or XABs). CDO does not
    provide properties corresponding to the RMS record access block
    attributes (RABs).

    See the OpenVMS documentation on RMS for detailed descriptions
    and the values accepted for each property listed in this
    chapter.