How to make two Synology NAS backup each other over the internet or local network

Do you know if the software will allow one unit to backup to another unit at another location via the internet? What I would like to do is get two of these, install one at my church (very small – office is our Pastor and a church secretary) as file storage/backup for two PCs, and install the other one at the Pastor’s house (which is not far, but not on the same network) to which the first one would sync/backup.

Yes, this is a very good idea to use your old NAS as a backup system. You can even take it a step further and place in your basement, garage, in different location with relatives. Just in case the disaster strikes.

Synology Hyper Backup will guide you through how to set up remote location for storing copy of your data.

Here is a Synology guide, or you can read it also from their web site.

Also you don’t need RAID on a old NAS any more because it will not be your main point of access any more.

1. Install Hyper Backup

If Hyper Backup has not been installed on your Synology NAS yet, please follow the below steps:

1. Log in to DSM and go to Package center. Search for Hyper Backup and download the package.
2. Make sure your Synology NAS is running DSM 6.0 or above. For users of older DSM versions, Hyper Backup is not supported.

2. Create a backup task

This section shows you how to create a backup task to a remote Synology NAS or file server.

1. 1. Open Hyper Backup.
   2. Click the + icon on the bottom left corner, and select Data backup task.
   3. On the Backup Destination page, select Remote NAS device if you would like to back up to another Synology NAS. To back up to file servers, please select one of the options in the File Server section. (Please note that rsync copy only supports single-version backup.) Click Next after choosing your destination.

1. 1. On the Backup Destination Settings page, select Create backup task and enter the information required to connect with the other NAS device or file server. As the procedures of backing up to both the aforementioned destinations are similar, only the step-by-step screenshots of remote Synology NAS backup are provided here for your reference. Enter the IP address and account information of the remote NAS to connect with it, and select a shared folder as the backup destination. You can also change the name of the Directory under which you can find your backed up data.

If the backup destination you selected is an encrypted shared folder, please make sure it has been mounted already. Otherwise, it won’t be displayed in the shared folder list.

1. 1. Select any source folder(s) to back up the contained data. Encrypted shared folders, if selected, must stay mounted during the backup process. In cases where the source and destination are in the same volume, the system will mark such source folders with orange exclamation marks.

1. 1. Select the application(s) you would like to back up.

1. 1. Specify the backup settings below to fit your needs:
      • Task: Name the backup task.
      • Enable task notification: Select to have you informed of the task status via email, SMS, or push service.
      • Enable configuration backup: Back up the system configurations (e.g. user credentials). This setting is enforced on all backup tasks by default.
      • Compress backup data: Compress backup data to reduce the usage of destination storage. More backup time is needed if this option is selected.
      • Enable backup schedule: Select to schedule when the system should automatically perform the backup task.
      • Enable integrity check: Select to schedule an automatic integrity check, which examines stored data and detects corruption, to run at a specific time to ensure data reliability. Index check is enabled by default, while you may set a limit on the time spent on data check.
      • Enable client-side encryption: Select to protect the backup data with password from unwanted access on the destination side. Please note that the password used for encryption here will be required for restoring the data backed up in this task. Therefore, losing this password will cause permanent data loss.

1. 1. Select Enable backup rotation to set up the rotation scheme:
      • From the earliest versions: Delete the earliest existing backup versions once the specified Number of versions is exceeded.
      • Smart Recycle: The system will retain every backup version until the specified number of versions is exceeded. When rotation is triggered, the system will first rotate the versions that do not meet any of the conditions; if all the existing versions meet the conditions below, the system will rotate the earliest version:
        • Hourly versions from the past 24 hours: The system keeps the earliest version that is created each hour.
        • Daily versions from the past 1 day to 1 month: The system keeps the earliest version that is created each day.
        • Weekly versions older than 1 month: The system keeps the earliest version that is created each week.
      • Number of versions: Set the upper limit of possible retained backup versions.
      • Timeline: Display the possible result of backup retention according to your backup schedule and rotation scheme.

1. Click Apply to complete the setup.
2. To perform the backup task immediately, follow the Backup Wizard’s instructions and click Yes.

3. Modify task settings

The system will show a green tick icon on the interface if your backup task is successful. You can always change the folders and applications to back up or modify your backup schedule or rotation policy by clicking the Settings button on the lower right-hand corner.

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