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Windows Hyper-V improvement for Linux virtual machines that have file systems that are larger than 2 TB

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Symptoms

Consider the following scenario:
  • You have a Linux virtual machine that runs on a Hyper-V host in Windows 8.1, Windows Server 2012 R2, Windows 8, or Windows Server 2012.
  • You try to format a Linux file system (such as by using the mkfs command) that is larger than 2 terabytes (TB) in the virtual machine.
In this scenario, the format operation fails, and the file system is not usable.

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Cause

This issue occurs because Hyper-V does not update the sense information correctly for the WRITE SAME SCSI command that is issued by the Linux virtual machine.

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Status

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

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More Information

For more information about software update terminology, see the Description of the standard terminology that is used to describe Microsoft software updates.
Third-party information disclaimer
The third-party products that this article discusses are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, about the performance or reliability of these products.

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Keywords: kb, kbqfe, kbfix, kbsurveynew, kbexpertiseadvanced

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Article Info
Article ID : 3004905
Revision : 1
Created on : 1/7/2017
Published on : 12/9/2014
Exists online : False
Views : 192