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can one device be VMDirectPath twice?
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wlee
Joined: Mon Jan 03, 2011 1:22 pm
Posts: 27
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 can one device be VMDirectPath twice? This is probably a dumb question as I know little on VMDirectPath.
Say I have a RAID card and want to try different NAS software, can I create two VM, and have both passthrough to the same RAID card?
Thank you!
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| Fri Jan 07, 2011 2:17 pm |
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Dave.Mishchenko
Site Admin
Joined: Mon Mar 16, 2009 10:13 pm
Posts: 3880
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Re: can one device be VMDirectPath twice? No, unforturately a device can only be used by a single VM at one time.
You could configure both VMs to use the device, but only one could be powered on at a time.
_________________Dave Mishchenko VMware vExpert 2009-2013  Now available - VMware ESXi: Planning, Implementation, and SecurityAlso available - vSphere Quick Start Guide
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| Fri Jan 07, 2011 2:24 pm |
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wlee
Joined: Mon Jan 03, 2011 1:22 pm
Posts: 27
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Re: can one device be VMDirectPath twice? Thank you Dave for the quick answer!
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| Fri Jan 07, 2011 2:25 pm |
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wlee
Joined: Mon Jan 03, 2011 1:22 pm
Posts: 27
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Re: can one device be VMDirectPath twice? One more question:
Once the device is passthrough to a VM, can it be used/accessed indirectly via hypervisor by another VM or even by hypervisor itself?
Thanks.
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| Tue Jan 11, 2011 11:56 am |
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Dave.Mishchenko
Site Admin
Joined: Mon Mar 16, 2009 10:13 pm
Posts: 3880
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Re: can one device be VMDirectPath twice? Once you power on the VM, the device can't be used by the hypervisor or another VM.
Once it is powered off you can use it with another VM. To use it with the hypervisor you would need to disable the device for use with VMDirectpath and reboot.
_________________Dave Mishchenko VMware vExpert 2009-2013 Now available - VMware ESXi: Planning, Implementation, and SecurityAlso available - vSphere Quick Start Guide
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| Tue Jan 11, 2011 12:00 pm |
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wlee
Joined: Mon Jan 03, 2011 1:22 pm
Posts: 27
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Re: can one device be VMDirectPath twice? Got it, thanks!
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| Tue Jan 11, 2011 1:53 pm |
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