The library must be listed in the OpenAccess library definitions file, named lib.defs or named cds.lib in Cadence installations. The OpenAccess plug-in is used to obtain the information, and of course must be available and set to connect to an OpenAccess database.
The technology information is extracted into a temporary Virtuoso ASCII technology file, which is then parsed by the equivalent of specifying ReadCdsTech with this file. The same file can be obtained from the print option of the !oatech command. This can be used to view the tech information that is being extracted.