Today’s Tip…

Users have been attaching pass-through disks to virtual machines for quite some time. There are several reasons for this including the limitation on virtual hard disk (VHD) size and\or the decreased performance experienced when using the VHD format. Beginning with Windows Server 2012 Hyper-V, there are new capabilities that make using pass-through disks an obsolete concept. These new features, which address both size and performance, include:

  1. Virtual Fibre Channel as a storage connection type inside virtual machines
  2. New virtual hard disk format with VHDX

To read more, please see Chuck Timon’s blog entry…

http://blogs.technet.com/b/askcore/archive/2013/01/24/behavior-change-when-working-with-pass-through-disks-in-windows-server-2012-failover-clusters.aspx