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SBS 2008 and DCs Need Hardware Failover Solution

Posted on 2011-09-27
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I have and SBS 2008 machine built on ESXi 4 and would like to configure this for maximum uptime.  I thought VMware's HA would be a good fit till i found out vServer wont install on a DC.  

The question I have is...since I've already built this SBS (DC) in a VM what can I do with it for maximum uptime if I cant use vServer's High Availability?

Thanks in advance!
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Question by:XChangingIT
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by:Andrew Hancock (VMware vExpert / EE MVE)
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I'm assuming here you mean vCenter Server will not install on a Domain Controller, which is correct, because it also uses ADAM, which is not compatible with a AD Domain Controller.

Do you have shared storage and two ESX servers, for HA?

VMware HA, will provide higher availability, but if one ESX server fails, it does take approx 1-2 minutes to startup the VIrtual Machines on the other ESX host server.

So you will have some downtime.

You could use Veeam Backup and Replication, which could replicate your VM every 15 minutes to another ESX server, in the event the Live Production fails, you could turn on the replicated version.

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by:Andrew Hancock (VMware vExpert / EE MVE)
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Also why not create a Virtual Server to host vCenter Server, it's supported?
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by:XChangingIT
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Yes i have a shared storage and another ESX box.  I did mean vCenter Server yes sorry.

---------------------------

You're saying on the one box create another VM with O/S #2 and install vCenter Server to that to handle the VM with O/S 1 (SBS2008)?  I could use HA on all the VMs on the one box thru vCenter that way?  Am i understanding you correctly?
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by:Andrew Hancock (VMware vExpert / EE MVE)
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Yes, vCenter is supported as a virtual machine.

Once vCenter is installed and configured you can create a Cluster of the two ESX Servers and use HA (if you are licensed for it).
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by:XChangingIT
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okay gotcha I thought i would need vCenter Server on each O/S (VM) to monitor it?

......so now id have 2 VMs, if the one box goes down HA should duplicate both SBS O/S 1 and vCenter with O/S 2 to the failover box ur saying?

I'm checking out Veeam too but i think HA would be faster recovery time in the event of a failure
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Andrew Hancock (VMware vExpert / EE MVE) earned 250 total points
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HA does not duplicate.

HA starts the Virtual Machines automaitcally, on the other host. Veeam Replicates. So yes HA is faster than Veeam.

VMware High Availability - Decrease Downtime and Reduce Risk
http://www.vmware.com/products/high-availability/overview.html

VMware High Availability (HA) Product Briefs
http://www.vmware.com/pdf/ha_datasheet.pdf
http://www.vmware.com/files/pdf/VMware-High-Availability-DS-EN.pdf

VMware vSphere Availability Guide ESX 4.1vSphere
http://www.vmware.com/pdf/vsphere4/r41/vsp_41_availability.pdf

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by:XChangingIT
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thanks for ur help!
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