VSS provider timed out
Any pointers would be greatly appreciated.
I am running Acronis True Image 2021, Build 39287 on MS Windows 11 Pro 10.0.22000 build 22000.
This is Alienware Aurora Ryzen Edition, AMD Ryzen 9 5950X 16-Core, 3401 Mhz, 64 GB installed RAM
Display is NVIDIA GeForce RTX 3090
C: 1.84 TB SSD NTFS (internal)
D: 10 TB NTFS (internal)
G: 18 TB NTFS (wD My Book 25EE USB drive) via USB 3.0
There are other drives on the system but I am only backing up from C and D drives to the G drive.
When first purchased and set up backups ran reliably, with a full backup once a week, and incrementals in between. Then over time I would get VSS Volume Shadow Copy errors occasionally. But I have not been able to do a backup without failure for 2 weeks now. Last successful FULL backup took 59 hours. When I first set this up FULL backups took about 5 hours.
VSS Doctor does not help much.
Disk I/O Load warns G: Operations/sec 217, Disk time: 2665. I note that Acronis is the ONLY software referencing drive G.
VSS Shadow Storages Status: All VSS shadow storages are configured correctly
Event log shows:
Event Log
Status: Warn
Description: Some VSS-related errors or warnings occurred during the previous day
Events:
Timestamp: 10/27/2022 6:18:42 AM
Type: Warning
Source: disk
Message: The IO operation at logical block address 0x556788 for Disk 3 (PDO name: \Device\00000071) was retried.
InstanceId: -2147221351
SearchLink: (removed)
Timestamp: 10/26/2022 6:57:36 PM
Type: Error
Source: VSS
Message: Volume Shadow Copy Service error: The I/O writes cannot be held during the shadow copy creation period on volume \\?\VOLUME{12457D95-5E4B-4ABC-B405-1D13E9B8DE7F}\. The volume index in the shadow copy set is 0. Error details: Open[0x00000000, The operation completed successfully. ], Flush[0x00000000, The operation completed successfully. ], Release[0x80042314, The shadow copy provider timed out while holding writes to the volume being shadow copied. This is probably due to excessive activity on the volume by an application or a system service. Try again later when activity on the volume is reduced. ], OnRun[0x00000000, The operation completed successfully. ]. Operation: Executing Asynchronous Operation Context: Current State: DoSnapshotSet
InstanceId: 12298
SearchLink: (removed)
Timestamp: 10/26/2022 6:57:35 PM
Type: Error
Source: VSS
Message: Volume Shadow Copy Service error: The shadow copy could not be committed - operation timed out. Error context: DeviceIoControl(\\?\Volume{1de78d3e-a3bb-4ddb-9433-64690cc9a731} - 0000000000000610,0x0053c010,00000218DA817340,0,00000218DA814040,4096,[0]). Operation: Committing shadow copies Context: Execution Context: System Provider
InstanceId: 12310
SearchLink: (removed)
Timestamp: 10/26/2022 6:57:35 PM
Type: Error
Source: volsnap
Message: The flush and hold writes operation on volume D: timed out while waiting for a release writes command.
InstanceId: -1073348600
SearchLink: (removed)
Timestamp: 10/26/2022 6:57:35 PM
Type: Error
Source: volsnap
Message: The flush and hold writes operation on volume C: timed out while waiting for a release writes command.
InstanceId: -1073348600
SearchLink: (removed)

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