Server 2008 SP1, Hyper-V Virtual Machines running on iSCSI LUNs.
Whenever a System State backup is performed (wbadmin start systemstatebackup
-backuptarget:d: -quiet), three System event errors are logged:
The file system structure on the disk is corrupt and unusable. Please run
the chkdsk utility on the volume VHD.
Not sure how to run chkdsk against "volume VHD".