Every night I have a CL, which does a DSPOBJD to an outfile for every object on the system. This file is used to find the largest objects on the system, duplicate or similarly named objects, all objects with a word in their description text and more.
With 58,819 objects on our main AS/400s (determined by seeing how many records were in the file), I'll take any help figuring out where something is located that I can get!
DSPOBJD OBJ(*ALL/*ALL) OBJTYPE(*ALL) +
DETAIL(*FULL) OUTPUT(*OUTFILE) +