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How to integrate an physical domain controller with an VM enviroment?

Hello all:

I'm wondering what the best practice is when adding a physical second domain controller  in an VM enviroment.

- Two Dell PowerEdge Servers
- One Dell EqualLogic SAN
- Several Intel member servers ( 1 I plan on using as a second DC)

I'm having issues with the power going down in the city and shutting down my equipment (power staying off longer then the runtime on my backups). The first time this happed I wasn't able to bring up the servers and corrupted some data. pretty much had to restore from backups. I don't have a second DC, just one thats a VM on the SAN. I'm interested in having a physical DC on another site within my district as a replication. I never had to do this with VMware in the environment. Not sure if I can without corrupting data if all the equipment goes off again....

If someone can enlightin me on the best practice I would greatly appreciate it.....

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3 Solutions
Hypercat (Deb)Commented:
I can't think of any reason that it would be any different from replicating between physical servers.  The replication process takes place within the guest operating system without reference to whether it is a virtual or physical machine. As long as the two sites can communicate over the WAN, then you shouldn't have any problems.

Do you have any battery backup capacity at the site where the virtual host machine is installed?  I would think that would be a very important aspect of your configuration given the problem you described, to allow you to shut down your VMs gracefully if the power goes out.
Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
You can create ALL virtual DCs on VMware vSphere.

ESXi servers do not have to dpend on DCs.

As for corruption not sure why you've had issues
PhiladminAuthor Commented:
Although I can create another DC on the VM, I prefer to have a physical on another site just in case I can't gracefully shutdown the VM environment... In addition, would the subnet mask and gateway need to be the same on both DC's for them to replicate?
Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
DCs can be on different sites and subnets, providing the networks are reachable.
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