I have a single Physical host running 2012R2, which in turn hosts 2 VM's both running 2012R2. All of local disk.
I have configured a backup of the VM's using a third party tool.
When the backup runs I receive two warnings:
Event ID:58 - The disk signature of disk 3 is equal to the signature of disk 1
Event ID: 157 - Disk 2 has been surprise removed
I believe it is to do with VSS snapshots being taken at the time of backup and the backup is completing successfully, although in Hyper-v Manager the server up-time is from when these events occurred.
I have done some investigation and rule out things such as the disk ID being the same between the host and the guest.
I also seen people saying these can be ignored.
Does anybody have any further information of these warnings when VM backups occur or whether these warnings can be ignored?
Thanks
mark
Mark | http://syscen.blogspot.com/