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ESX 5.5 USB and Pass-through problems

We have a ESX 5.5 that run a VM with Windows Server 2008 that need USB 3.0

At this moment we have USB 3.0 using a PCI device in pass-through mode, but the problem is that in this mode I can't pause or take a snapshot of the VM

I know that pass-through mode disable a lot of features, but we need both (Have a USB 3.0 in the VM and snapshot or pause feature for this VM)

Could you help me? Is very important for me

Thanks in advance
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lnrivera
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lnrivera
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1 Solution
 
Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
The current mode you are using is VM Direct Path I/O when you present a PCI card to the VM. This is normal that you cannot pause or snapshot a VM.


Why not try to use USB Passthrough?

Have you tried this, and does it work?

Please see my EE Article

HOW TO: Add and Connect a USB Device to a Virtual Machine, hosted on VMware vSphere Hypervisor ESX 4.1 ESXi 4.1, ESXi 5.0
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lnriveraAuthor Commented:
Thank for your prompt response Hancock, I used a lot of times your solution (I learned it some time ago using your tutorial that it's great!) , but I  think that this issue is different:

- The usb passthrough only works in Windows server 2008 as USB 2.0 not as 3.0

- The PCI Card that I  use with the USB 3.0 I think that is not recognized directly by VM, I only can view it and attach to the vm using pci passthrough.

The PCI Card is an original extra part of Fujitsu for our RX300 that are a certified server for ESX.

Any suggestion?
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
Unfortunately, these are the restrictions of using PCI Passthrough (e.g. VM Direct Path I/O).

Why do you need USB 3.0 in the VM?

Is this for backup?
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lnriveraAuthor Commented:
Yes, we need some backup storage to the VM cheap.
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
Personally I would look at network backup its more efficient than performing file and folder backups to USB.

Think virtual and move on from physical computer type backups and backup at block level.

PCI pass through has restrictions.
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