freenas sync between 2 units

Posted on 2009-04-14
Last Modified: 2013-12-01
I have 2 locations connected with a t1 and I'd like to setup a freenas server in each location and have them automatically sync volumes with each other. Is this possible? I don't need details, just checking to make sure it will work for my situation. I believe RSYNCD alows for this, but can they sync both ways?
Question by:flatironscc
  • 5
LVL 30

Expert Comment

by:Kerem ERSOY
ID: 24145025

I don't think it is possible with FreeNAS. At least the product does not have provisions to do that.

I'll suggest you to peek at OpenFiler. It is another NAS distro built around CentOS.

LVL 30

Expert Comment

by:Kerem ERSOY
ID: 24145126
I forgot to add OpenFiler  has several features to sync between remote NAS devices.
LVL 16

Assisted Solution

ai_ja_nai earned 50 total points
ID: 24146673
You can sync both ways with rsync.
And FreeNAS has rsync in its repositories, so it's supported
VMware Disaster Recovery and Data Protection

In this expert guide, you’ll learn about the components of a Modern Data Center. You will use cases for the value-added capabilities of Veeam®, including combining backup and replication for VMware disaster recovery and using replication for data center migration.

LVL 30

Expert Comment

by:Kerem ERSOY
ID: 24147291
I also know that there's a RSYNC support but I've never heard that any opensource or comemrcial NAS depend solely on RSYNC. RSYNC is good to send a backup over two dfferent systems over the same network. But it lacks the required control to keep two distant systems on sync. Especially they are twoseparate systems connected via WAN.

For Remote Replication you need the support for "Remote Block Syncronization" which FreeNAS is lacking.
LVL 30

Expert Comment

by:Kerem ERSOY
ID: 24147295
LVL 30

Accepted Solution

Kerem ERSOY earned 75 total points
ID: 24152393
Let me rephrase what I've told earlier. FreeNAS does have rsync support. But rsync is not good for keeping a replica of a two remote NAS servers. Because if rsync fails for some reason it needs to start from scratch to compare files on both ends to see where it left the time. This is very time and bandwidth consuming and does not assure that you're in snyc for a given time. There's not a transaction logic there but only file synchronization on the OS level. When it comes to data replication via WAN you need additional provisions and also a transaction logic. This works just under the OS level. So you need some additional different components to do that. This is why I did not suggest you rsync the first time. Please check the document reference that I've posted here previously and see for yourself


Featured Post

New My Cloud Pro Series - organize everything!

With space to keep virtually everything, the My Cloud Pro Series offers your team the network storage to edit, save and share production files from anywhere with an internet connection. Compatible with both Mac and PC, you're able to protect your content regardless of OS.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Workplace bullying has increased with the use of email and social media. Retain evidence of this with email archiving to protect your employees.
VM backup deduplication is a method of reducing the amount of storage space needed to save VM backups. In most organizations, VMs contain many duplicate copies of data, such as VMs deployed from the same template, VMs with the same OS, or VMs that h…
This tutorial will walk an individual through configuring a drive on a Windows Server 2008 to perform shadow copies in order to quickly recover deleted files and folders. Click on Start and then select Computer to view the available drives on the se…
This tutorial will show how to configure a single USB drive with a separate folder for each day of the week. This will allow each of the backups to be kept separate preventing the previous day’s backup from being overwritten. The USB drive must be s…

929 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

11 Experts available now in Live!

Get 1:1 Help Now