3.2.1 Operands related to system structure
- 1) pd_unit_id = unit-identifier
- ~<identifier>((4 characters))
- This operand is required.
- Specifies an identifier for the unit. The unit identifier specified here must have been specified in the pdunit -u operand in the system common definition.
- If multiple HiRDB single server configurations are used, specify a unique identifier for each system.
- Each utility special unit must also have a unique unit identifier. If you specify a unit identifier that has already been specified, an error will occur when the utility special unit is started.
- For a HiRDB parallel server configuration, the specified identifier must be unique within the system.
- Notes
- When a unit identifier is changed, the following files must be reinitialized:
- Unit status files
- System log files
- 2) pd_hostname = host-name
- ~<host name>((1-32 characters))
- Specifies the standard host name for the server machine of the primary system in which the unit was defined. For the host name, specify a host name, an IP address, or an FQDN.
- You can specify the host name specified in the -x option of the pdunit operand in the system common definition. When specifying this host name, while you can specify a host name, an IP address, or an FQDN, be aware that the specification format must be the same as that used in the -x option of the pdunit operand. For example, if you specified an IP address in the -x option of the pdunit operand, you must also specify the IP address in this operand.
- Specification guidelines
- Because this operand is closely related to the pdunit and pdstart operands in the system common definition, read the description of the pdunit and pdstart operands before you specify this operand.
- The host name specified here must be defined under /etc/brc.ipc. The hostname command or the gethostname function can be used to obtain the host name.
- You cannot omit this operand if you use Real Time SAN Replication. Specify the standard host name of the main site for the pd_hostname operand of the main site; specify the standard host name of the remote site for the pd_hostname operand of the remote site.
- Notes
- If the -n option is specified in the pdstart operand to use the multi-connection address facility, this operand cannot be omitted. In this case, specify the standard host name in this operand.