RECMAN was, on NetWare prior to version 8 (then called Novell Directory Services (NDS)), used a record-based database management engine called RECMAN, which relied on the Transaction Tracking System built into the NetWare Operating System.

Since version 8, eDirectory (along with the GroupWise collaboration suite, starting with version 5) uses the FLAIM (FLexible Adaptable Information Management) database engine.

FLAIM is an open source embeddable database engine developed by Novell and released under the GPL license in 2006.

This change allowed for Novell Directory Services (NDS) to support LDAP to be ported to other platforms such as Windows, Linux, and UNIX.[1]

More Information#

There might be more information for this subject on one of the following:
[#1] http://en.wikipedia.org/wiki/Novell_eDirectory