Sync two (2) TS3400D across the Internet

[CV_Frank]

Hey Guys

I am familiar with other NAS builds, Synology, Drobo, etc. First time I am trying to deploy/manage two Buffalo TeraStations..

I did a very quick search, and I think my questions is simple enough -

I have 1 Remote NAS in Minnesota, that is the companies FTP / Backup and I am going to deploy one in Los Angeles.

The Los Angeles group wants everything to mirrored off of the Minnesota NAS, but they wish to be able to edit/add/remove files and have these changes reflect on the Minnesota NAS.

From what I can see, Replication will get the files from Minnesota to Los Angeles, but any changes made on the Los Angeles side will not be synced/reflected on the Minnesota side, so (correct me if I am wrong) Replication is not my answer.

I was going to establish a VPN between both locations and then use a 3rd party software such as (Good Sync/Beyond Compare or even a RoboCopy) to accomplish the two-way synchronization.

My question to you guys is if any of you have any recommendations or experience that is relevant to this type of project and its scope, I would appreciate any information that is shared.

Model of both NAS units is - Buffalo TeraStation TS3400D

[craigsloan]

We are successfully replicating in both directions between (2) TS3400D's. I'll try to explain how, but I am not the person who figured it all out. Hopefully I'll have all the important details for you. Remember, your mileage may vary.

*** Note: if one folder is empty and the other has files and replication is turned on first on empty side, files may be deleted at other end ***
*** Suggest starting with empty folders for testing ***

1) both devices have the same folder names for replication
2) established VPN between the 2 sites (our VPN between sites is any/any for all protocols)
3) make sure you can ping the IP of the other remote TeraStation from each location
***  Perform the following at each end ***
4) in Backup; Backup - click "List of LinkStations and TeraStations" - (<sarcasm> intuitive, right? </sarcasm>)
5) click refresh to detect TeraStations - our remote device shows up
6) add the remote TeraStation to Off-subnet Devices (ours was added by host name)
7) close List of LinkStations and TeraStations; Close Backup List
8) in Backup; Replication; Add -Select your local Source Folder and Target Folder

This is what worked for us. It initially was set up with both devices on the same network for testing, but I was informed that it works this way for adding the remote site. The devices are set up with AD authentication and local a DNS server, so the host name name resolution works at both ends.

[Eastmarch]

This is correct. VPN is the most secure way to do this, and you just use the built in replication function.