.B ldif
This database uses the filesystem to build the tree structure
of the database, using plain ascii files to store data.
-Its usage should be limited to very simple databases, where performances
-are not a requirement.
+Its usage should be limited to very simple databases, where performance
+is not a requirement.
.TP
.B meta
This backend performs basic LDAP proxying with respect to a set of
-remote LDAP servers. It is an enhancement of the ldap backend. The
-proxy cache extension of meta backend provides answering of search
-requests from the proxy using results of previously cached requests.
+remote LDAP servers. It is an enhancement of the ldap backend.
.TP
.B monitor
This backend provides information about the running status of the slapd
.B pcache
Proxycache.
This overlay allows caching of LDAP search requests in a local database.
+It is most often used with the ldap or meta backends.
.TP
.B ppolicy
Password Policy.