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Copy Data Between Two Synology NAS

Copy Data Between Two Synology NAS
TrueToad 15611

Copy Data Between Two Synology NAS

The Easy Method

Copy Data Between Two Synology NAS using RSYNC:

How to copy data between two Synology NAS may include a lot of research with trial and error due to the many ways one can go about doing the task.  Using Shared Folder Sync is easy, quick, foolproof and provides an exact copy of the data on the receiving NAS. + you can sync updates either automatically or perform a manual sync at any time.

What is required and how to set Shared Folder Sync up

  • You need two Synology NAS on the same network
  • The receiving NAS needs  available space to receive the files being copied
  • You need Advanced Permissions to set up the RSync

Decisions you should make before starting.

  • Is this a one-way sync or two way, a one-way sync sends data to the receiving NAS when you perform syncs, the source data remains unchanged. Two-way sync will keep both NAS files synchronized, meaning if you delete files from one NAS the other NAS files will be deleted.  If you are just trying to copy data from your source to the other NAS I recommend one-way sync. Therefore if you require file versioning I recommend using DRIVE or Cloud Server. Shared Folder Sync is a replica of the files.
  • Will this be an automated recurring Shared Folder Sync or will you perform the sync manually?  I run mine manually.

How to Set Up Shared Folder Sync

(1) Enable RSYNC - Go to Control Panel -> File Services ->Click the RSYNC tab, then enable RSYNC service. You can leave the default port. RSYNC needs to be enabled on both Synology NAS. 
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(2) You need advanced permissions to perform RSYNC - Go To Control Panel -> Shared Folders ->Select the Folder to SYNC -> Then click Edit Tab 
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Then Click Advanced Permissions Tab->Enable the Advanced Shared Permissions checkbox ->then click the advanced shared permissions button 
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(3) Finally enable the user account with Read/Write 
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Summary Thus Far:  You Enabled RSYNC Service on the source NAS, You Enabled Advanced Permissions on the folder to sync, you granted permissions/rights to the account/user that will perform the sync. 

 

Next Steps - Set Up the Task List

 

During this part, you have options to perform one-way sync, two-way sync, leave destination file enacted even if the source file was deleted, or delete destination files if source files are deleted.

(1) Go to Control Panel->Click Shared Folder Sync 
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(2) Click Task List then -> Click Create -> Give The Task A Name
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(3) Select the Source Sync Folder
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(4) Set the Sync Destination NAS Where Data Will Be Copied To - Test Your Connection!
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(5) Execute the Sync -> First Sync click FULL SYNC, for updates ->Sync Now
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Final Summary: You have established a Shared Folder Sync which offers an easy way to keep a copy of important files on a second NAS. Depending on what options you choose, your destination NAS will have a copy of the source files.
This is useful for copying files/folders but does not offer version history. Thus if you delete a file from the source and do sync the file will be removed from the destination.  If you require versioning I suggest you set up a Cloud Server.

 

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Collapse Expand Comments (16)
ismail Ural

Was very useful ! Thanks a lot !!!

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TrueToad

My Pleasure - Wrote this article up following my a couple of days figuring out how to copy data between two Synology NAS devices. Thought I would share with others in case they needed to do the same.

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Guy Gilbert

In your first screen grab is reads "Enable the rsync service to render your DiskStation a backup destination for another Synology server...." but if I read your post correctly, you are advising to do this on the source DiskStation. A bit confusing?

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TrueToad

Enable RYSNC on the source and destination NAS.

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Wu Jang

Thanks for these instructions! For folks going this route, also take a look at this which offer similar advice: https://www.synology.com/en-global/knowledgebase/DSM/help/DSM/AdminCenter/application_backupserv_sharedfoldersync

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TrueToad

Thanks for the comments - There are a few other sources on how to keep files either in sync or a duplicate set on another NAS using RSYNC or snapshot replication. There are many scenarios to consider for each.

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Andrew

Are these NAS devices both on the same modem?

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TrueToad

In this situation for illustration purposes, they are located on the same network. However, you can establish a remote RYSNC on a NAS that is geographically located, such as a second office.

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