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Configuring Replication Between TeraStation Units on Different Subnets
The first step in setting up replication between TeraStations is to set up a folder on the target TeraStation.
- Log in to Settings for the target device TeraStation.
- From the "File Sharing" tab, click on the widget to the right of "Folder Setup".
- The list of currently configured folders will be displayed. Click Create Folder on the upper left to create a new folder that will be the target for the replication job.
- Name the new folder. Disable "Recycle Bin" for this folder because enabled recycle bins on the source will be replicated anyway. Be sure to check the option for "Backup" as this will designate the folder as a target for backup or replication.
NOTE: For better security always set a Remote Backup Password on target folders! Failing to do so can potentially expose data to the internet.
- The new folder should now be included in the folder list. Click the "Close" button in the lower right. Target configuration is now complete.
- Go to the user interface for the source device and go to the "Backup" tab. Click the configuration icon to the right of "Backup".
- From the "Backup List" box click the button "List of LinkStations and TeraStations".
- In the bottom half of this box under "Off-subnet Devices", click the Add.
- Enter the IP address for the off-subnet TeraStation, then click "Close". The TeraStation interface will pause while locating the off-subnet device.
Note: If the target TeraStation is behind a router, enter the router's WAN side IP address. You will need to map ports 873, 22938, and 22939 to the target TeraStation in the router for this to work correctly. If these ports are being blocked by the service provider you will need to work with your service provider to open these ports. For assistance with configuring port forwarding on a Buffalo router, see here. To configure port forwarding on a different router, please refer to the manual for the specific router.
- Once the TeraStation has located the off-subnet device it will return to the main interface "Backup" tab. Click the widget to the right of "Replication".
This screen will list any existing replication jobs. Click Edit on the lower right to add a new replication job or edit existing job.
Click the “Set” button enter the backup password that was set on the target.
Enter the password and click “OK”.
- Click Add to add a new replication job.
- Click Browse under "Replication Source" to select the folder to be replicated.
You should get a list of folders on the source device. You can choose a folder or a sub-folder as the replication source. Once you have selected the desired folder, click OK.
- Click Browse under "Replication Target" to select the target device and folder for this replication job.
- The off-subnet device should be listed by name, not IP address. Please note that the device and folder name shown in the image above differs from the example target we set up earlier. When setting this up for a production situation, the device and folder name should match what was configured on the target. Note that our target off-subnet device, "Windu", is listed twice. Each listing represents a different target folder on the device.
Note: If the replication target has multiple folders designated as backup targets, be certain to select the correct folder. Targets are listed in the format "devicename@foldername". Only one source can replicate to a single target folder. Multiple source devices replicating to the same target folder will overwrite data.
- The selected source and target folders should now be listed for the replication job. To finish setup, click OK.
- Once you click OK, the following dialogue box should appear. If you selected a destination folder that already contained data, that data will be deleted.
- The following message should appear. Do not close or refresh the browser while this message is displayed.
- Once you finish the replication process, you should be returned to the "Backup" tab in Settings. The initial replication process will now start. Larger replication jobs may take some time to finish. Subsequent replication tasks will only move changed or new files.
NOTE: During replication the data on the target folder may be inaccessible. Replication is a background operation with no progress indicator and a lower internal priority than servicing client requests and may take several hours, especially for an initial replication consisting of several hundred megabytes of data or more. Subsequent replications only copy over changed files and should take less time.