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A device which does not exist was specified

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Beginner
Posts: 2
Comments: 3

I receive the above error, A device which does not exist was specified, only when a full vs an incremental backup is trying to run.  I've looked at the system after I receive the failure message and all drives are mounted to the system.

I may be missing something but I don't see anything in the logs that states what is missing.  In this case it failed 2 days in a row and ran the 3rd day with no changes.  Is there a way of having Acronis tell me what the device is that is missing?

 

Need to resolve the problem, any help is appreciated.

 

Thx

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Posts: 99
Comments: 21411

#1

Gary, your logs are showing that you are having potential disk read errors which in turn lead to VSS snapshot errors being reported.

id=9;  date/time=03/07/2020 04:00:29;  message=Pending operation 172 started: 'Creating partition image'.
id=10;  date/time=03/07/2020 04:11:08;  message=Failed to read data from the disk.;
id=11;  date/time=03/07/2020 04:11:08;  message=Failed to read the snapshot.; 
id=12;  date/time=03/07/2020 04:11:08;  message=Unknown status.;
id=13;  date/time=03/07/2020 04:11:08;  message=A device which does not exist was specified; 
id=14;  date/time=03/07/2020 04:21:09;  message=Read error; 
id=15;  date/time=03/07/2020 04:21:09;  message=Read error;
id=16;  date/time=03/07/2020 04:21:09;  message=Failed to read the snapshot.; 
id=17;  date/time=03/07/2020 04:21:09;  message=Unknown status.; 
id=18;  date/time=03/07/2020 04:21:09;  message=A device which does not exist was specified;
id=19;  date/time=03/07/2020 04:21:09;  message=Read error; 
id=20;  date/time=03/07/2020 04:21:09;  message=Read error; 
id=21;  date/time=03/07/2020 04:21:09;  message=Failed to read the snapshot.; 
id=22;  date/time=03/07/2020 04:21:09;  message=Unknown status.;
id=23;  date/time=03/07/2020 04:21:09;  message=A device which does not exist was specified; 
id=24;  date/time=03/07/2020 04:21:09;  message=Operation has completed with errors.; 

You should run CHKDSK /F for your source disk drive and would also recommend downloading the Acronis VSS Doctor tool and running this too, letting it fix any issues that are identified.

Beginner
Posts: 2
Comments: 3

#2

I have run both chkdsk  /r and the VSS Doctor.  The only errors recorded from either is that the disk partition with the Windows image did not have any available space.

 

I also don't understand why the backup only has problems occasionally