Info
HPE Storage File Controller Systems running Microsoft Windows Storage Server 2012 R2 or 2016 may fail with a blue screen stop code
0x7E
related to the VOLSNAP or FVEVOL driver.
NOTE
: Not every Stop 0x7E can be attributed to this issue.
Sample stack:
Child-SP RetAddr Call Site
ffffcf01`443081b8 fffff802`737310af nt!IofCallDriver+0x4b
ffffcf01`443081c0 fffff802`737e20b7 fvevol!FveFilterDeviceControl+0xaf ffffcf01`44308280 fffff802`737e1ce6 volsnap!VspQueryDeviceNameFromTarget+0x93 ffffcf01`44308520 fffff802`737e22fb volsnap!VspQueryVolumeName+0x3a ffffcf01`44308630 fffff802`73808dec volsnap!VspDiagTrace+0x197
ffffcf01`44308870 fffff802`afc59319 volsnap!VspAdjustBitmap+0x14c ffffcf01`44308b80 fffff802`afc8fee1 nt!ExpWorkerThread+0xe9
ffffcf01`44308c10 fffff802`afd7de86 nt!PspSystemThreadStartup+0x41 ffffcf01`44308c60 00000000`00000000 nt!KiStartSystemThread+0x16
Scope
This issue affects any HPE StoreEasy or HPE 3PAR StoreServ File Controller running Microsoft Windows Storage Server 2012 R2 and 2016.
The bugcheck occurs because the OS detects a deadlock between VOLSNAP and FVEVOL drivers. This is one of the known issues that affects both Microsoft Windows Server 2012 R2 and 2016.
Microsoft Windows Server 2019 is not affected.
Resolution
In order to resolve the issue, Microsoft suggests disabling Volume Shadow Copy Service (VSS) legacy tracing.
To disable VSS Legacy Tracing:
Update the (default) value under
HKLM\SYSTEM\CurrentControlSet\Services\VSS\Diag
to
Disabled
.
This can be achieved by using RegEdt32 or the reg.exe command, below:
Reg.exe add "HKLM\SYSTEM\CurrentControlSet\Services\VSS\Diag" /ve /t REG_SZ /d "Disabled" /f
NOTE
: The change occurs immediately, there is generally no need to restart VSS or the server.
CAUTION
: Disabling VSS Legacy Tracing will prevent Windows Server Backup Running.
See Customer Advisory
HPE StoreEasy Storage - Windows Server Backup Running On Microsoft Windows Storage Server 2016 Fails With A Fatal Error.
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