Section 17.5, FAQs is included with the following FAQ:
The zone database files are modified without updating the SOA serial number. DNS compares the SOA serial number from the file as well as eDirectory. When the serial numbers are same, DNS loads the zone from the file instead of eDirectory. If there is a difference in the serial numbers, DNS ignores the file and reads from eDirectory. This improves the DNS load time performance.
Action: If an administrator modifies the zone database files, the SOA serial number should also be modified.
Action: Remove the zone database files and load DNS. The zone database is read from eDirectory and dumped into the files.
A new parameter is included in the Section A.6, DNS Server Maintenance Utility.