Friday, September 26, 2008

DG_BROKER_CONFIG_FILEn

Property

Description

Parameter type

String

Syntax

DG_BROKER_CONFIG_FILE[1 | 2] = filename

Default value

Operating system-dependent

Modifiable

ALTER SYSTEM

Range of values

One filename

Basic

No

DG_BROKER_CONFIG_FILEn (where n = 1, 2) specifies the names for the Data Guard broker configuration files.

Every database that is part of a Data Guard broker configuration has two broker configuration files, which contain entries that describe the state and properties of the configuration (such as the sites and databases that are part of the configuration, the roles and properties of each of the databases, and the state of each of the elements of the configuration). Two files are provided so as to always maintain the last known good state of the configuration.

If DG_BROKER_CONFIG_FILEn is not explicitly defined, then it is set to an operating system-specific default value at instance startup. The parameter can only be altered when the DMON (Data Guard broker) process is not running.

Note:

1. This parameter was introduced in 10g.

2. Query for the current value of the parameter

select name, value, isdefault, isses_modifiable, issys_modifiable,

isinstance_modifiable, isdeprecated, description

from v$parameter where upper(name) = ‘DG_BROKER_CONFIG_FILEn’;

NAME

VALUE

IS

DEFAULT

ISSES_

MODIFIABLE

ISSYS_

MODIFIABLE

ISINSTANCE_

MODIFIABLE

IS

DEPRECATED

DESCRIPTION

dg_broker_config_file1

/oracle/product/10.2.0.2ee

/dbs/dr1mydb.dat

TRUE

FALSE

IMMEDIATE

TRUE

FALSE

data guard broker

configuration file #1

dg_broker_config_file2

/oracle/product/10.2.0.2ee

/dbs/dr2mydb.dat

TRUE

FALSE

IMMEDIATE

TRUE

FALSE

data guard broker

configuration file #2

Oracle initializatoin parameters

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