Very large disks are not being recognised on a Windows 2008 KVM guest using virtio block drivers.

Solution Verified - Updated -

Issue

A very large (3TB) drive that worked correctly when attached to a Xen DomU guest running Windows 2008 is no longer being recognised when connected to a KVM guest running Windows 2008 with virtio-blk drivers.

Environment

  • Red Hat Linux Enterprise 5.4
  • virtio-win-1.0.0-7.39539.el5

  • Windows 2008 32bit KVM Guest

  • VirtIO Block Device Driver v1.0.0.31351 (Microsoft signed)

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