• To change the amount of memory used for caching database contents and to specify common parent DNs that should be compacted in the underlying database, use the dsconfig command in non-interactive mode. 
    $ bin/dsconfig set-backend-prop \ 
  --backend-name userRoot \ 
  --set db-cache-percent:40 \ 
  --add "compact-common-parent-dn:ou=accts,dc=example,dc=com" \ 
  --add "compact-common-parent-dn:ou=subs,dc=example,dc=com"