Today 12/16/13 I ran a windows update on a lab Windows Server 2012 R2. which is being used for iSCSI. After rebooting I lost 6 of the 10 devices established. All of these devices are provisioned off a local drive in a single folder where all of the vhdx's still exist.
When I try to import the devices back I am told: Unable to import the virtual disk. A virtual disk with that file path already exists.
First I do not understand why the disks disappeared, as the eventlog states that they were successfully initialized but they are not listed. I understand that I can relocate the vhdx's and then import but I need to understand what happened, and how to prevent it from happening again. As, how could I look to implement a solution that has the possibility to loose data or at a minimum access to the data contained within?