Windows error 0x00000191, 401 Detailed Error Information THREAD_MODE_NOT_BACKGROUND 
Message The thread is not in background processing mode. Declared in winerror.h
This appears to be a raw Win32 error. More information may be available in
error 0x80070191. PF_DETECTED_CORRUPTION 
This is a Blue Screen of Death stop code.
More information is available in the Knowledge Base article
Bug Check 0x191: PF_DETECTED_CORRUPTION. HRESULT analysis 
This is probably not the correct interpretation of this error.
The Win32 error above is more likely to indicate the actual problem.
Flags Severity Success
This code indicates success, rather than an error.
This may not be the correct interpretation of this code,
or possibly the program is handling errors incorrectly.
Reserved (R) false Origin Microsoft NTSTATUS false Reserved (X) false Facility Code 0 (0x000) Name FACILITY_NULL   Description The default facility code.   Error Code 401 (0x0191) Questions
I am setting up a NAS with 8 known-good 8TB WD Red drives from a previous NAS. When I configure RAID 6 across these drives my (untested) LSI MegaRAID 9265-8I starts beeping and reports that that drive is bad. However, when I run WD's LifeGuard Diagnostics it reports that all [...]
read more Comments Leave a comment Sources winerror.h from Windows SDK 10.0.14393.0 https://docs.microsoft.com/en-us/windows-hardware/drivers/debugger/bug-check-code-reference2 https://msdn.microsoft.com/en-us/library/cc231198.aspx
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