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VMware V2V migration

Posted on 2014-04-02
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Last Modified: 2014-04-03
I'm getting ready to move our VMware infrastructure from ESX 3.5 to ESXi 5.5. We have a current setup of some VMs with RDMs, which we can't get backups of data with solutions like Veeam, that use snapshot technology.

With V2V, this will move the VM in it's current state to the new Host, correct?
If so, how do I convert the VMs w/RDMs to virtual and when, before or after the migration?
Can I move the VMs to the new Host and convert the drive mappings?
Will the VM still be in tack on the original Host, if anything goes wrong?
We have our VMs currently on a EMC SAS and are migrating to a new Nexsan E18, will I use the storage migration?

Hope this isn't a lot of questions, but really based on V2V.
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Question by:Harold
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Andrew Hancock (VMware vExpert / EE MVE^2) earned 300 total points
ID: 39972043
When you complete the V2V, select ALL the drives you would like to convert, and V2V process will create a new virtual disk per drive and RDM.

Also, it's Best Practice and Recommended to install "Converter" on the VM to be converted.

The V2V process does not know, if the disk drive is real, virtual or RDM.

With V2V, this will move the VM in it's current state to the new Host, correct?

If so, how do I convert the VMs w/RDMs to virtual and when, before or after the migration?

During the V2V, select ALL the disks to migrate/clone/copy

It's a copy/clone, conversion, not a move!

Will the VM still be in tack on the original Host, if anything goes wrong?

Yes, the original VM, is not changed.

HOW TO: FAQ VMware P2V Troubleshooting

HOW TO:  P2V, V2V for FREE - VMware vCenter Converter Standalone 5.5

HOW TO: Improve the transfer rate of a Physical to Virtual (P2V), Virtual to Virtual Conversion (V2V) using VMware vCenter Converter Standalone 5.0
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by:Harold
ID: 39972103
Hancock: so after this conversion, I'll still need to figure out how to convert the RDMs to Virtual, correct?

If so, do you know of any How to's or KB's for this?
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ID: 39972296
No, as part of the conversion, process, when you start the process, you will be able to select ALL the drives you need to convert, including the RDM drive!

Your RDM drives appear as a standard drive letter to the OS, don't they?

You only know they are RDMs, because they are configured that way. But if you visited a VM for the first time, how would you know, if you did not have access to the back end storage - you wouldn't!

and neither does Converter, it just CLONES/COPIES the data, and creates a

C: DRIVE ---> VMDK
D: DRIVE (RDM) ---> VMDK

All articles and How Tos, are in my EE Articles posted above, including videos and Best Practices.
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by:Harold
ID: 39975125
I have one more question, you feel your vCenter server should be a physical machine or seperate drive in a server vs VM?

We currently have physical server and I've setup where the vCenter server is a VM. To me there are pros/cons to both.
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by:Andrew Hancock (VMware vExpert / EE MVE^2)
Andrew Hancock (VMware vExpert / EE MVE^2) earned 300 total points
ID: 39975135
We have been creating vCenter Server as a VM for many years, approx 10 years, before VMware supported it as a virtual machine.

VMware would now recommend that it's virtual!

and as such now has a vCenter virtual appliance.
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by:Harold
ID: 39975145
Great help, thank you!
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