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How to bring up a HA VM server on a different subnet and be seen as if it's on the original subnet

Posted on 2013-12-31
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Last Modified: 2014-02-18
Hi,

We currently are using a backup solution called Quorum to backup up our servers in our 3 remote offices as well as our main location, it creates high availability virtual machine recovery nodes.  All four offices are on different subnets.  The remote offices have 2 servers, one is a (DC, DHCP, DNS, Print, and File Server) and the other is our document management server that is running SQL.  Both servers are running Windows 2003.  My question is if one of the remote office servers goes down and I bring up the HA virtual machine, which comes up with same network configuration as the physical server, in our main office how can I get it to communicate with the clients of the remote office and the remaining server, as well as the other offices?
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Question by:arceeprime
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A lot of that will depend on your routing setups. The scenario you are asking about is just like taking the physical machine from Site-2 and moving it to Site-3 for example. Your HA Recovery VM should look, smell and taste just like the real thing. The way to solve this picture will be to create a test machine, server, workstation, doesn't matter. Set its IP configuration as a static IP for Site-2 and make certain you can access it like a LAN resource, file share, whatever. Now take it to Site-3 and notate all the steps you have to go through to get it to become visible from Site-2, not Site-3 because Site-3 doesn't care that this system exists.

This is going to be a very big project and will take some time. Without knowing your Physical and Logical network makeup, it will be very difficult to provide a 100% solution. Sounds like a fun project, nonetheless.
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