This is the Relative Name (RN) of a storage auth key object: the single naming component that, combined with its parent's DN, distinguishes this storage auth key from any sibling instances under the same parent. Admins rarely read the RN by itself, but UCS Manager and management tools use it to build and parse the full DN path so each instance of a stored authentication credential, such as a CHAP secret, that UCS uses to authenticate itself to an external storage target can be addressed uniquely. For instance, when a storage target has several storage auth keys attached, the RN is the piece that differs between their otherwise-identical parent DNs, letting a script enumerate all of them.