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How to handle backups of pass-through disks in Hyper-V with BackupExec 2012

Created: 20 Nov. 2012 • Updated: 20 Nov. 2012 | 8 comments

Looking to upgrade to BackupExec 2012 from 2010 R3 and the question that still lingers is whether or not we can backup pass-through disks in Hyper-V in 2012. What options are there, presuming one owns the Hyper-V agent, to do this? We use multiple CSVs with multiple VHDs per CSV for the operating system drives. Many VMs also have a passthru assigned as a direct (reserved drive in Windows) LUN.



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l'image des Swathi Turlapaty

Hello Dana, Please refer to this solved forum thread ..hopefully it answers your questions regarding upgrading from 2010 R3 to 2012.

l'image des Backup_Exec


Hyper-V backups of Virtual Machines with pass through disks will show the error message "One or more virtual machines have been excluded from the backup as the the virtual machine uses one or more physical disks."

Please check link below

Hope that helps



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l'image des pkh

To avoid the error mentioned in the previous reply, you need to backup the VM's with pass-thourgh disks as if they are physical machines.  First you have to install the remote agent in them and then back them up as if they are physical machines.

l'image des Ahmed Nmichi Hassani

The Backup Exec 2012 will backup only the VMDK disks in case of using the agent for VMware.

You can backup the pass-through Disk if you would backup the VMS using RAWS (Remote agent for Windows) Then backup exec will list all connected disk as in in case of  physical Server backup.

l'image des BanksyMJ


PKH has provided you the right answer to your query. If it answers your questions please mark his answer as the solution. It helps others when searching for answers to problems similar to yours

Kind Regards