Moving Existing VM's

Hyper-V 2012 R2 on 2012R2 core. Researching performance tuning and found this:
http://www.altaro.com/hyper-v/23-best-practices-improve-hyper-v-vm-performance/
Apparently we have broken some of these "best practices". Number 5 Avoid Storing System Files on Drives Used for Hyper-V Storage and number 6 is like it. So our VM and drives are on the physical server drive:
We have a JBOD's device that we could move the drives and VM's too. How can we correctly and safely move the drives and VM's to a separate drive?

I do not know the author and there are a few statements in the article that there is no proof have any performance impact.
Many of the recommendations are business practices / personal preferences that I have never seen MSFT performance numbers behind (and they have tons of performance metrics for Hyper-V).
#11 for instance - Generation 2 VMs only boot faster than Generation 1 VMs.  And the only reason is UEFI.  Just like on bare metal, it boots faster.  That is it. everything else is equivalent.
#5 and #12 are the same recommendation stated different ways.
Is it a necessary thing from a performance standpoint to move the VM configuration file off the OS volume of the Hyper-V server?  No, moving the configuration file is not a performance related issue.  It is a convenience issue, particularly when
backing up and restoring, or preparing a VM for HA, or other practices.
Moving the virtual hard disks of the VM - that is definitely a performance related issue.  And the storage migration has been mentioned already.
My point - be critical.  Consider the reason for each change and if it fits your environment.  And then also be mindful of the true reason for making the change.
Brian Ehlert
http://ITProctology.blogspot.com
Learn. Apply. Repeat.

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