VSS writers constanly failing during backup
Posted: Jan 28, 2019 4:32 pm
Veeam Support - Case # 03375512
For the past week we have been experiencing failed backup's due to A VSS writer issue. I have restarted the physical machine and have restarted services. Nothing seems to be fixing the issue. This started happening after the latest update. I also ran shadowdisk and it didnt come up with any problems. The Microsoft Hyper v VSS writer always come back failed with a non retryable error
This is just an example of one of them.
For the past week we have been experiencing failed backup's due to A VSS writer issue. I have restarted the physical machine and have restarted services. Nothing seems to be fixing the issue. This started happening after the latest update. I also ran shadowdisk and it didnt come up with any problems. The Microsoft Hyper v VSS writer always come back failed with a non retryable error
This is just an example of one of them.
Code: Select all
1/28/2019 10:48:23 AM :: Queued for processing at 1/28/2019 10:48:23 AM
1/28/2019 10:48:23 AM :: Required backup infrastructure resources have been assigned
1/28/2019 10:48:28 AM :: VM processing started at 1/28/2019 10:48:28 AM
1/28/2019 10:48:28 AM :: VM size: 127.0 GB (28.3 GB used)
1/28/2019 10:48:28 AM :: VM is now in the required state for processing
1/28/2019 10:48:30 AM :: Preparing to create snapshot
1/28/2019 10:49:01 AM :: Using guest interaction proxy FFLD-Venyu.fairfield.com (Same subnet)
1/28/2019 10:49:04 AM :: Inventorying guest system
1/28/2019 10:49:08 AM :: Subscribing to guest processing components
1/28/2019 10:49:12 AM :: 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.
1/28/2019 10:51:44 AM :: Transaction logs will not be truncated
1/28/2019 10:51:54 AM :: 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.)
1/28/2019 10:51:54 AM :: Task has been rescheduled
1/28/2019 10:52:17 AM :: 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.
1/28/2019 10:54:42 AM :: 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.)
1/28/2019 10:54:42 AM :: Queued for processing at 1/28/2019 10:54:42 AM
1/28/2019 10:54:44 AM :: 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.
1/28/2019 10:54:44 AM :: Network traffic verification detected no corrupted blocks
1/28/2019 10:54:44 AM :: Processing finished with errors at 1/28/2019 10:54:44 AM