DSNAPRHX
DSNAPRHX is part or the EARLY code and issues a Resource Access Request (RARQ) to establish a non-deletable entry.
Reference Sources
IBM Db2 for OS/390, Installation Guide, GC26-8970
IBM Db2 for OS/390, Messages and Codes, GC26-8979
IBM Db2 for OS/390, Administration Guide, SC26-8957