Does EMC have an OFFICIAL document describing all the Documentum platform (Content Server, DFC, etc.) error messages, such as MSROTH blog? http://msroth.wordpress.com/documentum-errors/
check product/<release>/messages directory
Or on the Content Server box, type dm_error command followed by the error code:
dm_error DM_SYSOBJECT_E_UNKNOWN_PERMIT
In fact, i think MSROTH articlee is based on dm_error executable.