Microsoft Windows Server 2012 R2
Microsoft Windows Server 2012
VMware vShield
問題
A miniport filter driver conflict occurs with the VMware Endpoint vsepflt.sys driver. The issue occurs on Windows Server 2012 and Windows Server 2012 R2 systems that run in VMware ESXi hosts. Server performance becomes slow and unresponsive.
原因
A conflict with the VMware Endpoint vsepflt.sys driver and any miniport filter driver causes this issue. The vsepflt.sys driver performs the input/output operation. When the driver is loaded multiple times into memory, it leads to the performance issue. When loaded, the driver can create timing issues because of file locks.
解決策
Step 1 - Verify that the filter driver (vsepflt.sys) is causing the conflict:
Open a command prompt.
Run the following command:
FLTMC
This command lists running filter drivers. If you have the issue, vsepflt shows multiple running instances, similar to the following:
Filter Name
Num Instances
Altitude
Frame
vsepflt
4
329998
(Legacy)
Step 2 - Remove the filter driver (vsepflt.sys):
NOTE:When installing VMware Tools on a Windows operating system, the Thin Agent (vsepflt.sys) is not installed by default. The Thin Agent is only installed as part of the FULL installation of VMware Tools.
Open a command prompt.
Run the following command:
fltmc unload vsepflt
Unloading vsepflt might resolve the issue. If it does not, continue to step 3.
Uninstall the VMware Tools and reinstall with the TYPICAL option.
NOTES:
If you need more support after uninstalling, open a VMware Support Request for vShield Endpoint or NSX File Introspection Driver (vsepflt.sys).
