VSS/Snapshot 에러로 인한 백업 실패 해결 방법

Question

현재 저는 Backup 서비스를 이용중에 있으나, Windows 서버 내 아래 에러 로그와 같이 백업이 정상적으로 이루어지지 않아 해결 문의 드립니다.

23:22:22..154 [13028.6372] <2> tar_base::V_vTarMsgW: ERR - failure reading file: E:\DB_Backup\GWareNet\GWareNet_backup_2025_03_26_230003_5775851.bak (WIN32 21: 장치가 준비되지 않았습니다. ) 23:22:22.155 [13028.6372] <4> dos_backup::V_AddToExcludeAfterList: INF - file will be skipped during cleanup processing:<E:\DB_Backup\GWareNet\GWareNet_backup_2025_03_26_230003_5775851.bak> 23:22:22.156 [13028.6372] <4> V_VSS_CheckForError: INF - Error Checking for GLOBALROOT\Device\HarddiskVolumeShadowCopy408 23:22:22.156 [13028.6372] <4> V_VSS_CheckForError: INF - Error Status (GLOBALROOT\Device\HarddiskVolumeShadowCopy408): 2 23:22:22.156 [13028.6372] <2> tar_base::V_vTarMsgW: ERR - Snapshot Error while reading file: GLOBALROOT\Device\HarddiskVolumeShadowCopy408\DB_Backup\GWareNet\GWareNet_backup_2025_03_26_230003_5775851.bak 23:22:22.156 [13028.6372] <4> dos_backup::V_AddToExcludeAfterList: INF - file will be skipped during cleanup processing:<E:\DB_Backup\GWareNet\GWareNet_backup_2025_03_26_230003_5775851.bak> 23:22:22.156 [13028.6372] <16> fcd_extent: failure reading from file, offset:<355836362752>, srtatus:<13>, error:<-2> 23:22:22.156 [13028.6372] <16> bpbkar fscp_block_process: ERR - failure reading file while processing extent 23:22:22.405 [13028.6372] <2> tar_base::V_vTarMsgW: FTL - Backup operation aborted!

혹시 위 에러 내용 확인이 가능할까요? 부탁드립니다.

vssadmin list writers 명령어 실행 시 VSS writer에 오류는 없다고 나옵니다.