VMWare upgrade.

Hello,

My vCenter 5.5 connects to a few hosts.  I am in the middle of upgrade the version from 5.5 to 6.

I setup a new vm and install vCenter 6 and also setup update manager.  I have removed a host (in maintenance mode) from the current vCenter 5.5 and add it to vCenter 6 and upgraded the host to version 6 using update manager.  

I am ready to remove the next host from my vCenter 5.5.  However, this host has a couple of important VMs in it.  Without putting it in maintenance mode or shutting down any VM, is there a way to add this next host to be upgraded into the vCenter 6 so I can perform the upgrade?

Please advise.  

Thanks.
nav2567Asked:
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
I setup a new vm and install vCenter 6 and also setup update manager.  I have removed a host (in maintenance mode) from the current vCenter 5.5 and add it to vCenter 6 and upgraded the host to version 6 using update manager.

all good, and should not cause any issues.

I am ready to remove the next host from my vCenter 5.5.  However, this host has a couple of important VMs in it.  Without putting it in maintenance mode or shutting down any VM, is there a way to add this next host to be upgraded into the vCenter 6 so I can perform the upgrade?

Yes, just add it to vCenter 6.0 and then migrate those VMs, using vMotion, will not cause an outage of VMs. vCenter Server is just a management server.
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