Backup do Windows Server falhando com erro não específico

Question

O Backup do Windows Server começou a falhar de um dia para o próximo com o erro 5 no log de eventos do aplicativo.

Somente o backup de uma partição falha, mas o chkdsk e o redimensionamento não produziram resultados. Fazendo backup de C: e o estado do sistema funciona bem. Não faz diferença se eu tentar fazer backup em um compartilhamento de rede ou em uma unidade USB dedicada.

-<Eventxmlns="http://schemas.microsoft.com/win/2004/08/events/event">
- <System>
 <Provider Name="Microsoft-Windows-Backup" Guid="{1DB28F2E-8F80-4027-8C5A-A11F7F10F62D}" /> 
<EventID>517</EventID> 
<Version>0</Version> 
<Level>2</Level> 
<Task>0</Task> 
<Opcode>0</Opcode> 
<Keywords>0x8000000000000000</Keywords> 
<TimeCreated SystemTime="2015-07-29T12:11:33.744942400Z" /> 
<EventRecordID>6035</EventRecordID> 
<Correlation /> 
<Execution ProcessID="3012" ThreadID="2632" /> 
<Channel>Application</Channel> 
<Computer>xxx.xxxx.com</Computer> 
<Security UserID="S-1-5-18" /> 
</System>

    2015-07-29T12: 11: 07.957977100Z     2155348041     %% 2155348041          

Os registros em C: \ Windows \ Logs \ WindowsServerBackup estão vazios.

O log de eventos de backup está mostrando isso

comissocomoDetalhes

-<Eventxmlns="http://schemas.microsoft.com/win/2004/08/events/event">
- <System>
  <Provider Name="Microsoft-Windows-Backup" Guid="{1DB28F2E-8F80-4027-8C5A-A11F7F10F62D}" /> 
 <EventID>14</EventID> 
 <Version>2</Version> 
 <Level>4</Level> 
 <Task>0</Task> 
 <Opcode>2</Opcode> 
 <Keywords>0x4000000000000000</Keywords> 
 <TimeCreated SystemTime="2015-07-29T12:11:33.744942400Z" /> 
 <EventRecordID>406</EventRecordID> 
 <Correlation /> 
 <Execution ProcessID="3012" ThreadID="2632" /> 
 <Channel>Microsoft-Windows-Backup</Channel> 
 <Computer>xxx.xxx.com</Computer> 
 <Security UserID="S-1-5-18" /> 
 </System>
 - <EventData>
   <Data Name="BackupTemplateID">{6B36061E-74D3-42AF-8A26-CDAB456A6F4F}   </Data> 
   <Data Name="HRESULT">2155348041</Data> 
   <Data Name="BackupState">12</Data> 
   <Data Name="BackupTarget">xxxx</Data> 
   <Data Name="NumOfVolumes">1</Data> 
   <Data Name="BackupTime">2015-07-29T12:11:07.957977100Z</Data> 
   <Data Name="HRESULT2">2155348041</Data> 
   <Data Name="VolumesInfo"><VolumeInfo><VolumeInfoItem Name="E:"      OriginalAccessPath="E:" State="12" HResult="-2147024809" DetailedHResult="0" PreviousState="7" IsCritical="0" IsIncremental="0" BlockLevel="0" HasFiles="1" HasSystemState="0" IsCompacted="0" IsPruned="0" IsRecreateVhd="0" FullBackupReason="2" DataTransferred="0" NumUnreadableBytes="0" TotalSize="0" TotalNoOfFiles="0" Flags="68" BackupTypeDetermined="1" SSBTotalNoOfFiles="0" SSBTotalSizeOnDisk="0" /></VolumeInfo></Data> 
  <Data Name="DetailedHRESULT">0</Data> 
<Data Name="SourceSnapStartTime">2015-07-29T12:11:07.957977100Z</Data> 
<Data Name="SourceSnapEndTime">2015-07-29T12:11:19.658052100Z</Data> 
<Data Name="PrepareBackupStartTime"><TimesList><Time Time="1601-01-01T00:00:00.000Z" /></TimesList></Data> 
<Data Name="PrepareBackupEndTime"><TimesList><Time Time="1601-01-01T00:00:00.000Z" /></TimesList></Data> 
<Data Name="BackupWriteStartTime"><TimesList><Time Time="1601-01-01T00:00:00.000Z" /></TimesList></Data> 
<Data Name="BackupWriteEndTime"><TimesList><Time Time="1601-01-01T00:00:00.000Z" /></TimesList></Data> 
<Data Name="TargetSnapStartTime">1601-01-01T00:00:00.000000000Z</Data> 
<Data Name="TargetSnapEndTime">1601-01-01T00:00:00.000000000Z</Data> 
<Data Name="DVDFormatStartTime"><TimesList></TimesList></Data> 
<Data Name="DVDFormatEndTime"><TimesList></TimesList></Data> 
<Data Name="MediaVerifyStartTime"><TimesList></TimesList></Data> 
<Data Name="MediaVerifyEndTime"><TimesList></TimesList></Data> 
<Data Name="BackupPreviousState">8</Data> 
<Data Name="ComponentStatus"><ComponentStatus></ComponentStatus></Data> 
<Data Name="SSBEnumerateStartTime">1601-01-01T00:00:00.000000000Z</Data> 
<Data Name="SSBEnumerateEndTime">1601-01-01T00:00:00.000000000Z</Data> 
<Data Name="SSBVhdCreationStartTime">1601-01-01T00:00:00.000000000Z</Data> 
<Data Name="SSBVhdCreationEndTime">1601-01-01T00:00:00.000000000Z</Data> 
<Data Name="SSBBackupStartTime">1601-01-01T00:00:00.000000000Z</Data> 
<Data Name="SSBBackupEndTime">1601-01-01T00:00:00.000000000Z</Data> 
<Data Name="SystemStateBackup"><SystemState IsPresent="0" HResult="0" DetailedHResult="0" /></Data> 
<Data Name="BMR">false</Data> 
<Data Name="VssFullBackup">false</Data> 
<Data Name="UserInputBMR">false</Data> 
<Data Name="UserInputSSB">false</Data> 
<Data Name="BackupSuccessLogPath" /> 
<Data Name="BackupFailureLogPath" /> 
<Data Name="EnumerateBackupStartTime"><TimesList><Time Time="2015-07-29T12:11:21.842Z" /></TimesList></Data> 
<Data Name="EnumerateBackupEndTime"><TimesList><Time Time="1601-01-01T00:00:00.000Z" /></TimesList></Data> 
<Data Name="PruneBackupStartTime"><TimesList><Time Time="1601-01-01T00:00:00.000Z" /></TimesList></Data> 
<Data Name="PruneBackupEndTime"><TimesList><Time   Time="1601-01-01T00:00:00.000Z" /></TimesList></Data> 
</EventData>
</Event>

Eu tentei fazer o backup na linha de comando com o wbadmin, mas ele também parou com o mesmo erro

Der Sicherungsvorgang in "\np-z38\d$\backup" wird gestartet.
Eine Schattenkopie der für die Sicherung angegebenen Volumes wird   erstellt...
Eine Schattenkopie der für die Sicherung angegebenen Volumes wird erstellt...
Die Sicherung von Volume "Volume(E:)" konnte nicht abgeschlossen werden.    Fehler:
Falscher Parameter.

Der Sicherungsvorgang wurde vorzeitig beendet.
Zusammenfassung des Sicherungsvorgangs:
 ------------------

Der Sicherungsvorgang wurde vorzeitig beendet.
Protokoll der gesicherten Dateien:
"C:\Windows\Logs\WindowsServerBackup\Backup-29-07-2015_14-11-07.log"

Protokoll der Dateien, die nicht gesichert werden konnten:
"C:\Windows\Logs\WindowsServerBackup\Backup_Error-29-07-2015_14-11-07.log"

Keines der Quellvolumes wurde gesichert.

Todos os resultados da pesquisa para este código de erro 2147024809 apontam para um backup de estado do sistema com falha, o que funciona bem.

Eu já desinstalei todas as atualizações do período relevante, recriei a tarefa de backup como backup único, bem como o backup planejado. Desinstalou o recurso de backup e reinstalou-o.

Alterou o disco USB e tentou fazer o backup no compartilhamento de rede.

Limpei o banco de dados de backup e criei novamente os arquivos C: \ Windows \ System32 \ wbem \ repository. Qualquer ajuda seria apreciada.