I keep seeing the following error on 2012 R2 Hyper-V servers which is causing the backing up of the system protection to be very unreliable.
When I look at the shadow copies settings for the C drive I'm trying to protect I get: Error 0,80042306: The shadow copy provider had an error.
Log Name: Application
Source: VSS
Date: 10/12/2015 09:39:07
Event ID: 12289
Level: Error
Description:
Volume Shadow Copy Service error: Unexpected error DeviceIoControl(\\?\Volume{8a65780c-2737-4bdb-a2ae-7de2b4060df7} - 0000000000000180,0x00530024,0000000000000000,0,000000DFE0128F20,4096,[0]). hr = 0x80070001, Incorrect function.
.
Operation:
Query diff areas on this volume
Context:
Volume Name: C:\
Most of the posts I've found have been to do with virtual floppy drives on VMware servers but the Hyper-V servers I'm seeing this on have never had VMware installed.