Without much technical knowledge, I may add the following experience, which occured by chance:
When Duplicati showed this error “Detected non-empty blocksets with no associated blocks”, and repair and other suggestions I’ve found here didn’t make the error go away, I finally choose to recreate the back-up. To do that, I have created a new backup from the config file of the old error-prone backup, renamed it, but - forgot to change the destination folder!
I ran it, and the above mentioned error did not reappear. I hope this new backup does what it is expected to do.
Running Duplicati 2 as a server on Win10, backup to external HD. Hope this helps.
My question: Can I trust this backup, since it still gives me a few strange errors?
2019-04-30 05:28:48 +02 - [Warning-Duplicati.Library.Main.Operation.BackupHandler-SnapshotFailed]: Fehler beim Erstellen des Snapshots: System.UnauthorizedAccessException: Es wurde versucht, einen nicht autorisierten Vorgang auszuführen.
bei Alphaleonis.Win32.Vss.VssBackupComponents…ctor()
bei Alphaleonis.Win32.Vss.VssImplementation.CreateVssBackupComponents()
bei Duplicati.Library.Snapshots.WindowsSnapshot…ctor(IEnumerable1 sources, IDictionary
2 options)
bei Duplicati.Library.Snapshots.SnapshotUtility.CreateWindowsSnapshot(IEnumerable1 folders, Dictionary
2 options)
bei Duplicati.Library.Main.Operation.BackupHandler.GetSnapshot(String sources, Options options),
2019-04-30 05:28:48 +02 - [Warning-Duplicati.Library.Main.Operation.Backup.FileEnumerationProcess-FileAccessError]: Error reported while accessing file: C:\Documents and Settings\Hannah,
2019-04-30 05:28:48 +02 - [Warning-Duplicati.Library.Main.Operation.Backup.FileEnumerationProcess-FileAccessError]: Error reported while accessing file: C:\Documents and Settings\Hannah,
2019-04-30 05:28:48 +02 - [Warning-Duplicati.Library.Main.Operation.Backup.FileEnumerationProcess-FileAccessError]: Error reported while accessing file: C:\Documents and Settings\DefaultAppPool,
2019-04-30 05:28:48 +02 - [Warning-Duplicati.Library.Main.Operation.Backup.FileEnumerationProcess-FileAccessError]: Error reported while accessing file: C:\Documents and Settings\DefaultAppPool, … ]
Errors:
[ 2019-04-30 06:48:30 +02 - [Error-Duplicati.Library.Main.Database.LocalBackupDatabase-CheckingErrorsForIssue1400]: Checking errors, related to #1400. Unexpected result count: 0, expected 1, hash: 6y9axTuPuScijYqpJYoSIrWjr4oCT8anZyaWz45/PCw=, size: 102400, blocksetid: 2323039, ix: 15, fullhash: +9taBJbTJQPh6PnJfFf8LwBNUwtcmipp+dAh1VRZXLM=, fullsize: 1770112,
2019-04-30 06:48:30 +02 - [Error-Duplicati.Library.Main.Database.LocalBackupDatabase-FoundIssue1400Error]: Found block with ID 7194036 and hash 6y9axTuPuScijYqpJYoSIrWjr4oCT8anZyaWz45/PCw= and size 28136,
2019-04-30 07:33:32 +02 - [Error-Duplicati.Library.Main.Database.LocalBackupDatabase-CheckingErrorsForIssue1400]: Checking errors, related to #1400. Unexpected result count: 0, expected 1, hash: RchjnSGyxBpoBYVUF+eTOJs01I7NwR+px7xJ6/OHNsc=, size: 102400, blocksetid: 2323154, ix: 4, fullhash: et74+L9UlZs0anjdoQfPQdLus4M60e7CcV1TdNlF44Y=, fullsize: 2504664,
2019-04-30 07:33:32 +02 - [Error-Duplicati.Library.Main.Database.LocalBackupDatabase-FoundIssue1400Error]: Found block with ID 7199469 and hash RchjnSGyxBpoBYVUF+eTOJs01I7NwR+px7xJ6/OHNsc= and size 21832 ]
My question would be: Do these errors compromise the backup?