H3: Overview
-The {{hdb}} backend to {{slapd}}(8) is the recommended primary backend for a
+The {{hdb}} backend to {{slapd}}(8) is a backend for a
normal {{slapd}} database. It uses the Oracle Berkeley DB ({{TERM:BDB}})
package to store data. It makes extensive use of indexing and caching
(see the {{SECT:Tuning}} section) to speed data access.
H3: Overview
-The {{mdb}} backend to {{slapd}}(8) is the upcoming primary backend for a
+The {{mdb}} backend to {{slapd}}(8) is the recommended primary backend for a
normal {{slapd}} database. It uses OpenLDAP's own
Lightning Memory-Mapped Database ({{TERM:LMDB}})
library to store data and is intended to replace the Berkeley DB backends.