Help: Backup Cannot be Stopped
Symptom
User reports: I installed and successfully ran the trial version on my client's Hyper-V 2008 R2 (Core) system but I cannot stop the program from running. Even after a restart of the system, the FastNeuron Service is running (with between 8-30% of the CPU) but I cannot stop it. I don't receive any error messages, just the warning that the current file will finish before it stops.
Possible Causes and Remedies
It appears BackupChain must be zipping or processing a file
using a method other than delta compression.
BackupChain
Version 2.2 and later permits delta compression processes to be
stopped via the BC monitor, so I assume the backup process must
be zipping something.
It could be simply zipping a huge file. Check the backup target
for activity if nothing else is reported. Also try enabling
debug tracing in the Log Options.
If you don't see any progress message at all in BC, it may be
stuck waiting for the VSS snapshot generation to finish. The
fact that CPU is active is a good sign.
Since it was working before and you restarted after activation,
a recent change within a VM or other system component on the
host may have created a VSS issue.
If nothing else helps, try this:
1. Stop the FastNeuron BackupChain Service from the Service
Manager, in worst case also terminate via Task Manager
2. Navigate to C:\ProgramData\BackupChainService and rename
BackupSets.xml to BackupSets.xml.old
3. Restart the service and open the BC monitor. The above steps
have eliminated the backup task from the equation
4. Now run a VSS test and see if snapshots work
If the snapshot generation doesn't work, check the Event Viewer
on host as well as in running VMs. Ensure all Integration
Services are installed and VSS is enabled on all VMs.
If still no luck, try shutting down all VMs and then run a VSS
test from the BackupChain Monitor. Then bring them back online,
one at a time and rerun the VSS test to find out which VM causes
the problem.
Related Help Documents
Hyper-V VSS Writer and Enabling Live Virtual Machine Backups