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Cobian Backup 11 not backing up open files

Posted: 11 Oct 2021, 17:41
by CraigD
I am testing the Backup 11 (Gravity) program for use backing up server-based files on an hourly basis. I have observed that if I have a particular file open it will not be backed up. What can I do to troubleshoot or resolve this?

Clarificaiton: I am running Cobian Backup on ServerA, backing up files that are located on ServerB.

The "Use Volume Shadow Copy" box is checked in my job.

Re: Cobian Backup 11 not backing up open files

Posted: 11 Oct 2021, 18:17
by cobian
Perhaps you are using monolithic compression?

Re: Cobian Backup 11 not backing up open files

Posted: 12 Oct 2021, 16:02
by CraigD
cobian wrote: 11 Oct 2021, 18:17 Perhaps you are using monolithic compression?
Not knowingly. On the job's Archive tab the Compression Type is "No compression".

Another interesting item: Something seems to have gone wrong with the VSS requester installation. The installer told me to check the installation log but I don't know where that is and can't find it. The logs folder only contains the job log. That job log contains this line:

ERR 2021-10-12 09:32 Couldn't contact the Volume Shadow Copy requester. Please check that the service is installed and running.


I tried starting the Cobian Backup 11 Volume Shadow Copy Requester service but it won't start. Any ideas how to get this repaired?

The server is Windows Server 2016. I am also taking a look at the Reflector product.

Re: Cobian Backup 11 not backing up open files

Posted: 12 Oct 2021, 17:50
by CraigD
I just re-installed the application. Here is the info from the installation wizard:

Installing the Volume Shadow Copy requester. Wait...
ERR An error occurred while installing the Volume Shadow Copy requester: The specified service has been marked for deletion
Giving the user "firm\svc-backup" the privilege to log in as a service
The user "firm\svc-backup" has now the privilege to log in as a service
Installing the main service...
The main service was successfully installed
Starting the main service...
The main service has been successfully started
Starting the user interface...
ERR Errors found: 1. Please consult the installation log!


Well shoot. This is on a production file server. I can't restart it until the weekend. If that's the current holdup when I'm stuck.

Re: Cobian Backup 11 not backing up open files

Posted: 12 Oct 2021, 19:06
by cobian
It seems like the VSC couldn't be installed/reinstalled for some reason. Try forcing a new installation/restarting it by using the service control.

Re: Cobian Backup 11 not backing up open files

Posted: 30 Oct 2021, 06:57
by gvd
Hello CraigD,

My grain of salt in an old story (two weeks old) ...
CraigD wrote: 11 Oct 2021, 17:41 Clarification: I am running Cobian Backup on ServerA, backing up files that are located on ServerB.
I would not expect VSS on ServerA to be able to take a snapshot of open files on ServerB.

Can't you run CB on ServerB instead ?

CraigD wrote: 12 Oct 2021, 17:50 I just re-installed the application. ...
ERR An error occurred while installing the Volume Shadow Copy requester: The specified service has been marked for deletion
I can't restart it until the weekend. ...
Installed, uninstalled, reinstalled without a restart. Bad idea as there are still traces of the previous install until reboot.

Best regards,

Gabriel