best way to sync changes on 2 windows VM's across the WAN?

So we have 2 exact VM's across the WAN from each other.  The VM is about 50GB.  So our admin wants a way to sync any file changes that happen on box A to box B.  You see Box B is a DR box.  Would DFS work for this or is there a better way?
stowyoAmericas Regional IT ManagerAsked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
You could try robocopy, this is cheap and cheerful, and schedule to run every 15 minutes.

If you wanted to do this "outside" of the VM, you would use Veeam Backup and Replication.

stowyoAmericas Regional IT ManagerAuthor Commented:
I was thinking Veeam.  Robocopy would freak on the open files and registry file I think...  I was hoping for some free utility or built in MS utility.....
Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
you stated "sync any file changes" if you mean SYNC the VM exactly.

You will need to use Veeam Backup and Replication, DoubleTake (expensive!).

There is nothing free.

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
I would download and take Veeam Backup and Replication for a trial.
I would back hanccocka on that and suggest you definately need Veeam if you want to  have a DR site in standby mode for your vm environment. If you are looking to replicate host a to host b, with whatever amount of vm's you are better of with Veeam.

The replication job can be set at 15 min intervals, and after the initial replication, all the delta's won't each as much of your bandwidth.
IF you have more than 1 vm in your environment, with puchase of Veeam you can essentially have your entire environment synced, rather than 1 vm.
For file only replication, DFSR would be acceptable within Windows.

With Veeam, you would have an ESX server with sufficient storage at your DR site, which will replication your environment. If you are limited on storage at the DR stie, you could opt to only replicate important vm's. But, with Veeam replication, you have a stand by mode vm's sitting ready to be powered on in case of disaster. Plus, with this investment, you get a rock solid vm backup solution as well :)
So definately worth the investment to have a strong backup and replication process.

As hanccocka suggested, download the trial and give it a shot.
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today

From novice to tech pro — start learning today.

Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.