Failed to create snapshot (Microsoft Software Shadow Copy provider 1.0) (mode: Veeam application-aware processing) Details: Writer 'Microsoft Hyper-V VSS Writer' is failed at 'VSS_WS_FAILED_AT_PREPARE_SNAPSHOT'. The writer experienced a non-transient error. If the backup process is retried, the error is likely to reoccur. --tr:Failed to verify writers state. --tr:Failed to perform pre-backup tasks.
Make sure VM does not have 'iSCSI Software Target Storage Provider' feature installed.
Retrying snapshot creation attempt (Writer 'Microsoft Hyper-V VSS Writer' is failed at 'VSS_WS_FAILED_AT_PREPARE_SNAPSHOT'. The writer experienced a non-transient error. If the backup process is retried, the error is likely to reoccur. --tr:Failed to verify writers state. --tr:Failed to perform pre-backup tasks.)
Task has been rescheduled
Queued for processing at 28/09/2016 21:04:47
Unable to allocate processing resources. Error: Writer 'Microsoft Hyper-V VSS Writer' is failed at 'VSS_WS_FAILED_AT_PREPARE_SNAPSHOT'. The writer experienced a non-transient error. If the backup process is retried, the error is likely to reoccur. --tr:Failed to verify writers state. --tr:Failed to perform pre-backup tasks.
When O365Backup is uninstalled Veeam B&R returns to normal. Just thought I#d mention it.
cdlane wrote:As an aside the "normal" Veeam Backup fails on the server running the O365Backup. When O365Backup is uninstalled Veeam B&R returns to normal. Just thought I#d mention it.
That's interesting. Could you please reconfigure Backup for Office 365 to use local repository instead of a network share and then try to reproduce this backup issue. Does it fail again?