The following FAQ was included in the Section 17.5, FAQs:
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, it ignores the file and reads from eDirectory. This improves the DNS load time performance.
Action: If administrator modifies the zone database files, the SOA serial number also requires to be modified.
or
Action: Remove the zone database files and load DNS. The zone database is read from eDirectory and dumped into the files.
A new parameter was included for dns-inst and Section A.6, DNS Server Maintenance Utility in the Configuration Option and Default Option:
<Credential storage (0->file, 1->CASA)>
A new option to delete the empty Resource Records of zones in the eDirectory is included in the dns-maint (8) section. The option is -d, Deletion of Empty Resource Records.