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Designing Hyper-V Solutions by Saurabh Grover

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Pass-through disks

As the name indicates, these are physical LUNs or hard drives passed on from the Hyper-V hosts, and can be assigned to a virtual machine as a standard disk. A once popular method on older Hyper-V platforms, this allowed the VM to harness the full potential of the raw device bypassing the Hyper-V host filesystem and also not getting restricted by the 2 TB limit of VHDs. A lot has changed over the years, as Hyper-V has matured into a superior virtualization platform and introduced VHDX, which went past the size limitation. with Windows Server 2012 R2 can be used as a shared storage for Hyper-V guest clusters.

There are, however, demerits to this virtual storage. When you employ a pass-through disk, the virtual machine configuration ...

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