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I have a pass-through 2 + TB passthrough/physical disk attached to a 2008 R2 HyperV VM. &nbsp;<br />
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1) Can I RAID this just like I would a real physical disk<br />
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2) I am under the impression that I can't backup a passthrough/physical disk via server 2008 backup of the host and have to do it within the VM. &nbsp;Is that correct? I would really like to have only backup for the host and all the VM's running on the host.
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I have a pass-through 2 + TB passthrough/physical disk attached to a 2008 R2 HyperV VM.  

1) Can I RAID this just like I would a real physical disk

2) I am under the impression that I can't backup a passthrough/physical disk via server 2008 backup of the host and have to do it within the VM.  Is that correct? I would really like to have only backup for the host and all the VM's running on the host.

Windows Server 2008 R2 HypverV - pass-through disks and RAID and backup

Virtualization is the act of creating a virtual (rather than actual) version of something, including (but not limited to) a virtual computer hardware platform, operating system (OS), storage device, or computer network resources. Virtualization is usually the creation of a system that executes separate from the underlying hardware resources, or the creation of an entire desktop for systems located elsewhere, similar to thin clients.

Virtualization

Microsoft Virtual Server was a virtualization solution that facilitated the creation of virtual machines on the Windows XP, Windows Vista and Windows Server 2003 operating systems. Virtual machines are created and managed through a web-based interface that relies on Internet Information Services (IIS) or through a Windows client application tool called VMRCplus. Features included Linux guest operating system support, Virtual Disk Precompactor, symmetric multiprocessing (SMP), x64 host operating system support, the ability to mount virtual hard drives on the host machine and additional operating systems support, including Windows Vista, and a volume shadow copy writer.

Microsoft Virtual Server

The term "Backup" means the methods and processes involved to copy computer data (system data as well as application data) to media other than the ones where the data originally live (disk, tape, optical, cloud). "Restore" in turn means the methods and processes involved in data recovery, i. e., bringing back copied computer data to their original location. Backup/Restore primarily serves as a means of protection against data loss, be it due to disaster, corruption or sabotage. It can also be used for recovering data from an earlier point in time and even for cloning machines or applications. There is a wide variety of backup/restore software available, from expensive commercial products to free or open source tools.

Storage Software

Microsoft SQL Server 2008 is a suite of relational database management system (RDBMS) products providing multi-user database access functionality.Component services include integration (SSIS), reporting (SSRS), analysis (SSAS), data quality, master data, T-SQL and performance tuning. Major improvements include the  Always On technologies and support for unstructured data types.