Distributed Name Service (DNS) Management Operations Manual

Initializing and Starting DNS Configurations
DNS Management and Operations
3–6 31258 Tandem Computers Incorporated
7. Now it is time to specify the execution priorities for the DNS name manager
process, the exporter process, and the CPUs on which these processes are to run.
At this point, you may also indicate the volume on which the name manager’s
swap file is created. To perform these tasks, use the SET DNSPROCESS command
as shown in the figure. The values you specify in this step take effect in step 8.
If you want to import and export database names to a database on another node,
the name manager and name exporter process names entered in this step must be
the same as those in that database’s configuration.
8. At this point, you can initialize DNS by entering the INITIALIZE DNS command.
If you want to use a different file name for any of the database files, you must do
this before you initialize DNS; see “Changing DNS File Names” later in this
section.
In response to the INITIALIZE DNS command, DNS initializes the DNS
configuration file with the values specified in steps 5 and 7, creates the DNS
database files, and displays a message indicating that initialization is
accomplished.
All files are initially owned by you (as the person executing DNSCOM) and are
assigned your default security. However, when they are successfully created and
loaded, DNSCOM alters their security flags to AAOO. You can make yourself the
owner of these files or assign them to another owner, as described under
“Changing DNS Ownership” later in this section and in the discussion of the SET
DNS command in Section 7. Security flags are discussed more under “DNS File
and Database Security” later in this section.
9. When you initialize a DNS configuration for the first time, the associated database
is empty. To load the definitions of Tandem subsystems and object types, you use
DNSCOM to run an OBEY file called ZDNS.LOAD. Thereafter, you use DNSCOM
or any application to add other definitions to the database.
Now start DNS by entering the START DNS command. In response, the name
manager and exporter processes begin and DNSCOM displays a message
indicating that DNS is running.
10. Specify the name of the installation subvolume containing your LOAD file (ZDNS)
by entering an OBEYVOL command.
11. Now, load the definitions of these subsystems into the DNS database with the
OBEY LOAD command. At this point, DNS is ready for use.
In addition to the DNS initialization and starting steps outlined above, you should
consider other options such as file names, security, DNS ownership, and others that
you can address during initialization with DNSCOM. These options are discussed in
the following subsections.
For information on how to stop a DNS configuration, refer to “Stopping a DNS
Configuration” below.