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Is it possible to remotely sync a physical system with a duplicate virtual instance?

We would like to duplicate a critical server and have it run as a virtual instance using a Hyper V server. Is there an application available that will sync files that have changed every 5 - 15 minutes so that the system can have 100% uptime in the event of a disaster? Currently we are backing the system up to a server that has the ability to perform a bare-metal restore. The challenge is that the restore process takes 2-3 hours and we are looking for a solution that would allow us just to make a DNS change to point to the virtual instance in the event of a system crash, etc...

I have looked at r-sync, but am interested in getting feedback for a solution that is best for a Windows server. Any feedback will be greatly appreciated. Thanks.
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Most Valuable Expert 2015
Commented:
The Shadowcopy of StorageCraft has that built in. It can be set to automatically restore the backups to a VBox VM so you can keep on working with that until the main server has been repaired and restored. This also has the advantage that you can easily test your backups and restore single items quickly in case someone deletes something he shouldn't have... The smallest backup interval I think is 15 minutes, but that is usually enough and it should fit your requirements. It is in my point of view the best backup product available:

http://www.storagecraft.com/

Author

Commented:
Thanks for the quick response. The product looks great and is reasonably priced, however I'm not able to determine if this product will work over VPN connections. We are currently backing up servers from remote locations. If this product will work over a VPN connection then it may be exactly what we need.
Most Valuable Expert 2015

Commented:
It is built for also backing up to remote locations, so it also supports VPN connections.
Andrew Hancock (VMware vExpert / EE Fellow)VMware and Virtualization Consultant
Fellow 2018
Expert of the Year 2017

Commented:
Veeam Backup and Replication for Hyper-V

Author

Commented:
Is there a good open source solution available? We already have the backup and virtual infrastructure in place. If there's a good reliable tool available that doesn't cost $$$ that would be perfect.
kevinhsiehNetwork Engineer

Commented:
What does your server do? A solution for Exchange is different from SQL which is different from file servers. Double-Take from Vision solutions will write all changes from one server to another in real time asynchronously, but it is pretty expensive. Heroware will also do that because it is built on Double-Take, but I have heard that it is cheaper. If you are just doing file sharing, DFS-Replication ir rsync might do enough of what you need, and they are free.  

Author

Commented:
Thank you, this product does exactly what we need it to do.