Vmware vcenter upgrade

I am planing to upgrade vcenter ver 5.1 to ver 6.0.
This is a physical server with 6 esxi in the cluster.
I will appreciate your recomendation.
No plan to go for vcenter appliance and still want to use physical server.
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sara2000Asked:
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
A fresh installation is recommended by VMware, not an upgrade.

Remove all the ESXi servers, format the physical server, and install new OS, and install vCenter 6.0.

Now the Appliance is as good as vCenter Server for Windows, it's also recommended to use the Appliance, as VMware will be stopping supporting vCenter Server for Windows in the future.
sara2000Author Commented:
We still need windows server if i go on VCA direction because VUM still need windows server.
This is s small environment what will happen to vca and its cluster if hosting esxi died, will the vca rebooted in an another esxi?
I rather stay with physical server with windows environment ?
Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
Correct VUM at present still needs a Windows Server, but VMware are in the final stages of integrating this with VCSA!

The only thing I believe they need to complete is the GUI!

vCenter Server is just a management server, it's only responsible for management of VMs, and configuration of Cluster, e.g. VMware HA.

VMware HA (FDM) Agents are responsible for failover of the cluster.

If you have VMware HA, al VMs will restart on another server, and how often do your hosts fail?

Anyway, in the future, vCenter Server will only be virutal, and it will be an appliance.
sara2000Author Commented:
Thank you for the reply,
I plan to buy a new esxi host , can I mic ver5.1 and 6 esxi in the new vcenter ?
This is what i am thinking of doing.
1. Install new vm for Vcenter ver6.0
2- create new cluster and configure HA and DRS in the new vCenter.
3. Install new esxi host and add into new center.
4. remove ver.5.1 from old Vcenter cluster and add that to new cluster.
5. move the vas to new esxi host
6. format the old esxi and install ver6.0
7. continue above steps.

i like your comments on this.
Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
Thank you for the reply,
I plan to buy a new esxi host , can I mic ver5.1 and 6 esxi in the new vcenter ?

Yes. 5.1 and 6.0 can be managed by the same vCenter Server 6.0.

This is what i am thinking of doing.
1. Install new vm for Vcenter ver6.0
2- create new cluster and configure HA and DRS in the new vCenter.
3. Install new esxi host and add into new center.
4. remove ver.5.1 from old Vcenter cluster and add that to new cluster.
5. move the vas to new esxi host
6. format the old esxi and install ver6.0
7. continue above steps.

i like your comments on this.

Yes, seems like a good plan.

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