.SH DESCRIPTION
The \fBbdb\fP backend to
.BR slapd (8)
-is the recommended primary backend for a normal
-.B slapd
-database.
-It uses the Oracle Berkeley DB (BDB) package to store data.
+uses the Oracle Berkeley DB (BDB) package to store data.
It makes extensive use of indexing and caching to speed data access.
.LP
-\fBhdb\fP is a variant of the \fBbdb\fP backend that uses a
-hierarchical database
-layout which supports subtree renames. It is otherwise identical to
-the \fBbdb\fP behavior, and all the same configuration options apply.
+\fBhdb\fP is the recommended primary database backend. It is a variant of
+the \fBbdb\fP backend that uses a hierarchical database layout which
+supports subtree renames. It is both more space-efficient and more
+execution-efficient than the \fBbdb\fP backend. It is otherwise identical
+to the \fBbdb\fP behavior, and all the same configuration options apply.
.LP
It is noted that these options are intended to complement
Berkeley DB configuration options set in the environment's