Pass-through disks are a feature of Hyper-V that allow virtual machines to access storage that is directly mapped to the Hyper-V host without requiring that the volume be configured. This storage can be any of the following:
Physical disk internal to the host
Direct-Attached Storage (DAS) device attached to the host
Storage Area Network (SAN) Logical Unit Number (LUN) that is mapped to the host
In this section Chuck Timon demonstrates how to troubleshoot some scenarios involving pass-through disks for highly available virtual machines running on Hyper-V hosts.
There are several options available to Hyper-V administrators for attaching storage to virtual machines. The most frequently used option ...