Red Hat Directory Server 8.0 Administrator's Guide
4.3. Backwards Compatibility and Migration
While current versions of Directory Server can support the old database design, only the new
design is supported for this and later releases of Directory Server.
Upon startup, the server will read the database version from the DBVERSION file, which
contains the text Netscape-ldbm/6.2 (old database version), Netscape-ldbm/7.1 (new
database format), or bdb/4.2/libback-ldbm (new database format). If the file indicates that
the old format is used, then the old code is selected for the database. Because the
DBVERSION file stores everything per-backend, it is possible to have different database
formats for different individual backends, but the old database format is not recommended.
All databases must be migrated to Directory Server 8.0 when the system is upgraded. Migration
is supported for Directory Server 6.x versions, and for releases earlier than version 6.x, dump
the databases be dumped, and install Directory Server fresh. Migrating databases is covered in
the Directory Server Installation Guide.
Also, the index sizes can be larger than in older releases, so you may want to increase your
database cache size. To reconfigure your cache size, look up the nsslap-dbcachesize entry in
the Directory Server Configuration, Command, and File Reference.
5. Attribute Name Quick Reference Table
Table 10.7, “Attribute Name Quick Reference Table” lists all attributes which have a primary or
real name as well as an alias. When creating indexes be sure to use the primary name.
Attribute Primary Name Attribute Alias
dn distinguishedName
cn commonName
sn surName
c countryName
l localityName
st stateOrProvinceName
street streetAddress
o organization
ou organizationalUnitName
facsimileTelephoneNumber fax
uid userId
mail rfc822mailbox
mobile mobileTelephoneNumber
pager pagerTelephoneNumber
co friendlyCountryName
labeledUri labeledUri
Chapter 10. Managing Indexes
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