Backing up Hyper-V passthrough disks?

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Backing up Hyper-V passthrough disks?

Veeam Logoby sminneman » Tue Feb 07, 2012 9:07 pm

Hello, I have a VM that uses a passthrough disk to expose the physical disk directly to the virtual machine (as opposed to saving information in a VHD file). On that VM, I use a VHD for the system disk (the C: drive), and then use the passthrough disk for file storage (the D: drive). When I back up the VM, it only grabs the information in the VHD file, and not the information in the passthrough disk. Is there a setting I need to change, or does Veeam not support passthrough disks?

Thanks!
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Re: Backing up Hyper-V passthrough disks?

Veeam Logoby Vitaliy S. » Tue Feb 07, 2012 9:16 pm

Hello Scott, pass-through virtual disks and disks connected via in-guest iSCSI initiator are not supported and are skipped from processing by Veeam B&R backup/replication jobs automatically. Thanks!
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Re: Backing up Hyper-V passthrough disks?

Veeam Logoby sminneman » Tue Feb 07, 2012 9:54 pm

Is this a feature that will be added soon?
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Re: Backing up Hyper-V passthrough disks?

Veeam Logoby Vitaliy S. » Wed Feb 08, 2012 7:56 am

I doubt that, as data that is stored on a pass-through disks within a virtual machine cannot be backed up by the Hyper-V VSS writer (Microsoft limitation).

However if still want to backup this disk there are some workarounds you might want to use: http://blogs.technet.com/b/virtualizati ... riter.aspx
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Re: Backing up Hyper-V passthrough disks?

Veeam Logoby captainflannel » Tue Jun 05, 2012 6:15 pm

Can we configure VEEAM B&R to backup the disks in the VM which are not pass-through? For example just the System drive? I am trying to perform this on a backup job, but the entire VM is skipped. Now running B&R 6.1, job still skips the entire VM. I have tried to setup exclusions to only backup the IDE System drive and nothing else, no success.
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Re: Backing up Hyper-V passthrough disks?

Veeam Logoby Gostev » Tue Jun 05, 2012 6:42 pm

Please open a support case, since this is supposed to work.
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Re: Backing up Hyper-V passthrough disks?

Veeam Logoby captainflannel » Tue Jun 05, 2012 8:44 pm

Have open case, #5195770

Thank you.
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Re: Backing up Hyper-V passthrough disks?

Veeam Logoby Gostev » Wed Jun 06, 2012 9:34 am

So, your error has nothing to deal with this topic :D
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[MERGED] Pass-through disks directly attached to a VM

Veeam Logoby muhammimi » Thu Jul 02, 2015 10:44 am

Hi
We need to get clarity on Veeam B&R v8 solution.

Scenario
The Hyper-V environment consist of physical disks that are directly attached to a virtual machine (sometimes referred to as ‘pass-through disks’).

Question
1.Is above scenario supported by Veeam B&R v8 solution?
2.If NO, what will be the workaround to address the above scenario?

Thanks
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Re: Backing up Hyper-V passthrough disks?

Veeam Logoby Vitaliy S. » Thu Jul 02, 2015 10:52 am

The workaround would be to use virtual disks of supported configuration. Please check our our release notes document > http://www.veeam.com/veeam_backup_8_0_r ... tes_rn.pdf
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