Target Systems

Configure the Manager process and Replicat groups on the target systems.

To Configure the Manager Process

On each target, configure the Manager process.
In each Manager parameter file, use the PURGEOLDEXTRACTS parameter to control the purging of files from the trail.

To Configure the Replicat Groups

On each target, create a Replicat checkpoint table (unless using Oracle integrated Replicat). See About Checkpoint Table for instructions.
On each target, use the ADD REPLICAT command to create a Replicat group for the remote trail on that system. For documentation purposes, these groups are called rep_1 and rep_2.
Command on target_1:
```
ADD REPLICAT rep_1 
[, INTEGRATED | COORDINATED [MAXTHREADS number]]
, EXTTRAIL remote_trail_1, BEGIN time
```
Command on target_2:
```
ADD REPLICAT rep_2
[, INTEGRATED | COORDINATED [MAXTHREADS number]]
, EXTTRAIL remote_trail_2, BEGIN time
```
Use the EXTTRAIL argument to link the Replicat group to the correct trail.

See Parameters and Functions Reference for Oracle GoldenGate for detailed information about these and other options that may be required for your installation.

On each target, use the EDIT PARAMS command to create a parameter file for the Replicat group. Use the following parameters plus any others that apply to your database environment. For possible additional required parameters, see the Oracle GoldenGate installation and setup guide for your database.

Parameter file for rep_1:

-- Identify the Replicat group:
REPLICAT rep_1
-- Specify database login information as needed for the database:
[TARGETDB dsn_2][, USERIDALIAS alias]
-- Specify error handling rules:
REPERROR (error, response)
-- Specify tables for delivery and threads if using coordinated Replicat:
MAP [container.|catalog.]owner.table, TARGET owner.table[, DEF template]
[, THREAD (thread_ID)][, THREADRANGE (thread_range[, column_list])]
;

Parameter file for rep_2:

-- Identify the Replicat group:
REPLICAT rep_2
-- Specify database login information as needed for the database:
[TARGETDB dsn_3][, USERIDALIAS alias]
-- Specify error handling rules:
REPERROR (error, response)
-- Specify tables for delivery and threads if using coordinated Replicat:
MAP [container.|catalog.]owner.table, TARGET owner.table[, DEF template]
[, THREAD (thread_ID)][, THREADRANGE (thread_range[, column_list])]
;

You can use any number of MAP statements for any given Replicat group. All MAP statements for a given Replicat group must specify the same objects that are contained in the trail that is linked to the group.