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Synology One Way Sync from Computer or Another NAS

Synology one way sync ensures your files are securely backed up without overwriting originals. Learn how to configure synology cloud sync one way for efficient data management and peace of mind.

March 6, 2025

Content at a glance:

What is Synology One Way Sync?

With Synology one way sync, files are transferred without any backward updates from a source location (such as your PC) to a destination (such as a Synology NAS). This makes it perfect for backups and archiving since modifications performed at the destination won't impact the source. It's straightforward, effective, and infallible—like having a one-way street for your data.

Synology NAS

Why Perform Synology One Way Sync?

The simplicity of Synology One Way Sync is its main benefit. It’s perfect for creating backups, as it ensures your original files remain untouched and reduces the risk of accidental deletions or overwrites.

In general, Synology one way sync has two conditions, sync files to Synology NAS in one way, or sync files from Synology NAS to another location in one way (or vice versa). We will describe this in detail in this post. No matter what the conditions, you can try the comprehensive multiple cloud storage manager - MultCloud.

Part 1. Sync Files to Synology NAS in One Way

Uploading files to Synology NAS is a way of backing up, no matter how the source files change, it remain the files that you’re uploading at that time unless you upload it again. So, how to upload files to Synology NAS in one way? MultCloud can help you a lot.

MultCloud is an online cloud storage manager, which allows you to upload files to the cloud you added, including Synology NAS. Check the simple steps below for Synology one way sync:

1. Please register a MultCloud account, then log in.

2. Click Add Cloud > NAS, then input the credentials to add.

Add Synology NAS

3. Hit on NAS from the left side, click Upload File on the top menu, choose the computer files you’d like to upload, and then hit Open to sync files to Synology NAS in one way.

Upload Files to Synology NAS in One Way

Although you can use Synology Drive Client to upload folders to Synology NAS, it’s complex to configure compared with MultCloud.

  • Smart Share: Share cloud files via public, private, or source mode.
  • One-key Move: Quick data transfer, sync, and backup among clouds.
  • Email Archive: Protect emails to other clouds or local disks.
  • Remote upload: Effectively save web files to clouds via URL.
  • Save Webpages as PDF/PNG: Keep them locally or online.
  • Instagram Download: Archive Instagram materials locally or online.
  • Easy: Access and manage all clouds in one place with one login.
  • Extensive: 30+ clouds and on-premise services are supported.

Part 2. Sync Synology to Synology in One Way

If you want to sync Synology NAS to another Synology NAS, MultCloud can also do you a big favor.

MultCloud allows you to perform Synology to Synology sync in one-way, two-way, real-time, or other modes (up to 10 modes).
It’s easy to do Synology cloud sync in one way with MultCloud because it provides an intuitive interface.
MultCloud supports over 40 clouds and services, including NAS, FTP/SFTP, pCloud, MEGA, MediaFire, ownCloud, Wasabi, iCloud Drive, iCloud Photos, Google Drive, OneDrive, Dropbox, Box, Amazon S3, Backblaze, iDrive e2, etc.
You can choose everything from one Synology NAS to another, choose certain files manually, or use file extensions to filter quickly.
Schedule is provided to perform Synology one way sync on a regular basis, like daily, weekly, or monthly.

So, how to do Synology one way sync with MultCloud? Follow the detailed guide to sync Synology NAS to another Synology NAS in one way with MultCloud:

1. Log in to your MultCloud account, then click Add Cloud > NAS to add your Synology device. Then add another Synology NAS in the same process.

Add Synology NAS

2. Click Cloud Sync > Normal Sync, hit FROM to choose files in the source Synology NAS, and tap TO to choose a location in another Synology NAS.

Sync Synology to Synology in One Way

Tips:

  • By default, if you choose normal sync, it’s a one way sync mode. You can change the sync modes in Options anytime.
  • Filter in Options permits you to filter files using file extensions, which is very quick and efficient.
  • To schedule a Synology one way sync, hit Schedule, then set up daily, weekly, or monthly, it will sync files at the time you configured, just set it up and forget it.
  • Enjoy all premium features if required after subscribing to a MultCloud advanced plan, like a filter, schedule, faster sync speed, and many more.

3. Press the Sync Now button to do Synology one way sync quickly.

After syncing is finished, check the files in the destination Synology NAS and ensure all the files are synced with success.

If you want to free up space for the source Synology NAS, you can try the cloud transfer, which allows you to delete all the migrated files automatically after the task is finished, there is no need to delete manually, saving time and effort.

FAQs About Synology One Way Sync

What is the Difference Between Synology One Way Sync and Two-Way Sync?

A: The Synology Backups benefit greatly from One Way Sync since it transfers files from one location to another without letting changes return. Conversely, two-way sync facilitates modifications on both sides, which is better for teamwork.

Can I Use Synology One Way Sync Without a NAS?

A: No, Synology One Way Sync requires a Synology NAS to function. The NAS acts as the central hub for syncing files.

Can I Schedule Synology One Way Sync?

A: Yes, you can schedule Synology One Way Sync to occur at specific intervals, such as daily or weekly, using the Synology Drive or Cloud Sync applications.

What Happens if There’s a Conflict During Syncing?

A: Since Synology One Way Sync is unidirectional, conflicts are rare. However, if a file is modified at the source while a sync is in progress, the updated version will overwrite the previous one at the destination.

How Do I Monitor Synology One Way Sync?

A: You can monitor sync activity through the Synology Drive admin console, which provides real-time updates on sync status and any potential issues.

In the End

You ought to be well-versed on Synology One Way Sync by now, and how it may streamline your file management. Synology one-way sync is a dependable and effective solution whether you're trying to meet compliance standards, backup critical data, or archive media files. Why wait, then? To see the difference for yourself, begin synchronizing now!

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