Problem: Veeam kann kein Backup der DCs durchführen. Die DCs sind Windows 2008 und laufen auf einem Hyper-V 2012R2.
System Log
lsass (804) An attempt to open the file „\\?\Volume{a14c93b6-90d4-11df-be82-806e6f6e6963}\Windows\NTDS\ntds.dit“ for read only access failed with system error 32 (0x00000020): „The process cannot access the file because it is being used by another process. „. The open file operation will fail with error -1032 (0xfffffbf8).
The VSS writer NTDS failed with status 11 and writer specific failure code 0x800423F4.
Veeam Error
Unable to allocate processing resources. Error: Writer ‚Microsoft Hyper-V VSS Writer‘ is failed at ‚VSS_WS_FAILED_AT_PREPARE_SNAPSHOT‘.
Vss error: ‚0x800423f4‘
–tr:Failed to verify writers state.
–tr:Failed to perform pre-backup tasks.
Lösung:
Am betroffenen Server diese Dienste in dieser Reihenfolge neu starten.
- COM+ Event System
- Volume Shadow Service(Copy)
- Hyper-V Volume Shadow Copy Requestor