Scalable Database Server, HiRDB Version 8 Installation and Design Guide

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23.1.1 Connection to a HiRDB server with an FQDN specified

The host name specified in the pdunit operand must be registered, together with the IP address, in the host's file at every client machine that accesses the HiRDB server. Use of DNS eliminates the need for registration in the hosts file, thereby eliminating the need for modifying the hosts file that is associated with registration and IP address changes.

Connection with a HiRDB server running on a host in a domain can be established by specifying the server machine's fully qualified domain name (FQDN) in PDHOST and PDFESHOST.

Table 23-1 lists the names that can be specified in the client environment definition.

Table 23-1 Names allowed in client environment definition

Name specified in client environment definition Version 05-02 or earlier Version 05-03 or later
Host name S S
FQDN [Figure] S*

S: Can be specified.

[Figure]: Cannot be specified.

* This is used in a large-scale network environment to avoid having to modify the host's file when a host name or IP address is registered or when an IP address is changed.
Organization of this subsection
(1) Example of network configuration and definition for connecting to a HiRDB server with an FQDN specified
(2) Notes

(1) Example of network configuration and definition for connecting to a HiRDB server with an FQDN specified

Figure 23-1 provides an example of a network configuration and definition for connecting to a HiRDB server with a fully qualified domain name (FQDN) specified.

Figure 23-1 Example of network configuration and definition for connecting to HiRDB system with an FQDN specified

[Figure]

Explanation:
  • The host name (HS01) in the network that is used by the HiRDB system is specified in the -x option of the pdunit operand.
  • The HiRDB system's FQDN (HS01.soft.hitachi.co.jp) is specified in PDHOST in the client environment definition.

(2) Notes

  1. An FQDN cannot be specified in PDHOST or PDFESHOST of the client environment definition in the case of connection to a HiRDB system whose version is earlier than 05-03. If specified, a server process may not be able to execute cancellation processing after the maximum client wait time (value specified in PDCWAITTIME) has elapsed.
  2. An FQDN cannot be specified as a host name in a HiRDB system.
  3. If the HiRDB server and HiRDB client use different networks, the multi-connection address facility must be used to connect to the HiRDB system; for details, see 23.1.2 Using the multi-connection address facility to connect to a HiRDB server.

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