I often get the error shown above, or
ERROR VSS_START Shadow copy creation failed: StartSnapshotSet returned 80042316
Shadow copy creation failed: StartSnapshotSet returned 80042316
and other transient errors. This is when reading from the laptop’s SSD that is running the duplicacy service. Is there any way to debug this? My current solution is to just keep running backup, and eventually it works.
Is that on Windows? Try chkdsk /f c: in the elevated cmd to schedule filesystem check on the system and any affected disk and reboot. On windows vast majority of VSS failures are caused by inconsistencies in the filesystem.
Thanks for the suggestion.
That didn’t help, also doesn’t seem like there were any major issues (though there were some).
It seems related to VSS (probably should have mentioned that I am using that ;-)). This is the log error I got during the last failed backup:
|||- Provider
| [ Name ] VSS |
|---|
|||- EventID 8194
| [ Qualifiers ] 0 |
|---|
Level 2
Task 0
Keywords 0x80000000000000
|||- TimeCreated
| [ SystemTime ] 2020-07-27T17:08:40.494883800Z |
|---|
EventRecordID 377115
Channel Application
Volume Shadow Copy Service error: Unexpected error querying for the IVssWriterCallback interface. hr = 0x80070005, Access is denied.
. This is often caused by incorrect security settings in either the writer or requestor process.
Operation:
Gathering Writer Data