윈도우 서버 백업 - Hyper-V 가상 머신이 백업되지 않는 경우 (2)

다음과 같은 원인으로 Hyper-V 백업에 실패하는 경우가 있습니다.

Writer Failures
Writer Id: {66841CD4-6DED-4F4B-8F17-FD23F8DDC3DE}
Instance Id: {C81DF23B-7270-4220-9A94-21BA623AFBF4}
Writer Name: Microsoft Hyper-V VSS Writer
Writer State: 5
Failure Result: 80042336
Application Result: 80004005
Application Message: (null)
   Component: 3A41FD8D-1CE5-43D7-9BB0-B3FDE82D8ACB
   Logical Path: (null)
   Component Result: 800423F4
   Component Message: Could not create backup checkpoint for virtual machine 'testpc4': The file exists. (0x80070050). (Virtual machine ID 3A41FD8D-1CE5-43D7-9BB0-B3FDE82D8ACB)
       File Spec: D:\vm\testpc4\Virtual Machines\\3A41FD8D-1CE5-43D7-9BB0-B3FDE82D8ACB.xml Recursive: 0
       File Spec: D:\vm\testpc4\Virtual Hard Disks\\testpc4.vhdx Recursive: 0
       File Spec: D:\vm\testpc4\Snapshots\\3A41FD8D-1CE5-43D7-9BB0-B3FDE82D8ACB-BackupSnapshot.xml Recursive: 0
       File Spec: D:\vm\testpc4\Virtual Hard Disks\\testpc4-AutoRecovery.avhdx Recursive: 0
*-----------------------------*

Application backup
Writer Id: {66841CD4-6DED-4F4B-8F17-FD23F8DDC3DE}
   Component: 3A41FD8D-1CE5-43D7-9BB0-B3FDE82D8ACB
   Caption     : Online\testpc4
   Logical Path: 
   Error           : 80780175
   Error Message   : Component was skipped from volume shadow copy.

   Detailed Error  : 800423F4
   Detailed Error Message : The writer experienced a non-transient error.  If the backup process is retried,
the error is likely to reoccur.
*-----------------------------*