<div>
looking at this further: in the host OS both devices are recognised as storage devices, but in the guest the WD is a storage device and the samsung is an unknown device. <br />

</div>


looking at this further: in the host OS both devices are recognised as storage devices, but in the guest the WD is a storage device and the samsung is an unknown device.


<div>
What is the guest OS Version and are you trying to get the USB disk as pass-through to the guest?<br />
In the Host OS, the drives are listed as Hard Disk Drive or Removable storage? WD in the guest is listed as Hard Disk Drive or Removable storage?
</div>


What is the guest OS Version and are you trying to get the USB disk as pass-through to the guest?
In the Host OS, the drives are listed as Hard Disk Drive or Removable storage? WD in the guest is listed as Hard Disk Drive or Removable storage?

<div>
I have also found that the Freecom Mobile Classic 500GB disks passthrough as unspecified devices. <br />
The Seagate Expansion 1TB are recognised by the Hyper-V host as SCSI disks and are therefore useful
</div>


I have also found that the Freecom Mobile Classic 500GB disks passthrough as unspecified devices.
The Seagate Expansion 1TB are recognised by the Hyper-V host as SCSI disks and are therefore useful

<div>
<div class="content wysiwyg-content">
Can anyone help me with getting USB disks to show in the guest OS (W2008 R2).<br />
I have been very successful with WD Passports, once I get rid of the WD software.<br />
Now I have some SAMSUNG S2s and they seem very similar (the host OS thinks they are disk drives), but the guest OS does not allocate them as drives, just puts them in the USB devices....<br />
The host OS can offline, online, format and so on.
</div>
</div>


Can anyone help me with getting USB disks to show in the guest OS (W2008 R2).
I have been very successful with WD Passports, once I get rid of the WD software.
Now I have some SAMSUNG S2s and they seem very similar (the host OS thinks they are disk drives), but the guest OS does not allocate them as drives, just puts them in the USB devices....
The host OS can offline, online, format and so on.

Hyper-V passthrough USB - SCSI OK with WD, not with SAMSUNG

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

Windows Server 2008 and Windows Server 2008 R2, based on the Microsoft Vista codebase, is the last 32-bit server operating system released by Microsoft. It has a number of versions, including including Foundation, Standard, Enterprise, Datacenter, Web, HPC Server, Itanium and Storage; new features included server core installation and Hyper-V.

Windows Server 2008

Computer data storage, often called storage or memory, is a technology consisting of computer components and recording media used to retain digital data. In addition to local storage devices like CD and DVD readers, hard drives and flash drives, solid state drives can hold enormous amounts of data in a very small device. Cloud services and other new forms of remote storage also add to the capacity of devices and their ability to access more data without building additional data storage into a device.