Hyper V Replication And Failover
Description
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Today's Topic:
We discuss Hyper V Replication and failover and the benefits and dangers of using it. Hyper V Replication and Failover is demonstrated on Windows Server 2012 R2 with 2 servers.
The biggest issue with Hyper V Replication and Failover is the possibility of "split brain" where you accidentally initiate the replicated copy of a virtual machine while the original is still running. This may cause clients to use both machines simultaneously and the data stores will no longer remain identical. It this happens to specific types of servers it may end up being catastrophic to your infrastructure.
To use Hyper V Replication and Failover:
-It is easiest if you setup an Active Directory Domain and the both servers are members of it.
-Add Hyper V to both machines
-Enable Hyper V replication services on both machines
-Enable replication for EACH virtual machine to be replicated.
-Before doing a Failover verify the replication health
Technet Post on Setting up Replication: http://blogs.technet.com/b/yungchou/archive/2013/01/10/hyper-v-replica-explained.aspx
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