Disable OpLocks win2008
Opportunistic Locking:
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Disable Opportunistic Locking at the server service level:
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Add the following Value:
\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\LanmanServer\Parameters
Value Name: EnableOplocks
Data Type: REG_DWORD
Value (decimal): 0
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Disable Remote File Control Blocks (RFCB) caching
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Add the following Value:
\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\LanmanServer\Parameters
Value Name: CachedOpenLimit
Data Type: REG_DWORD
Value (decimal): 0
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To disable SMB2 on a Windows Server 2008
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Add the following Registry value: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\LanmanServer\ Value Name: SMB2
Data Type: REG_DWORD
Value (decimal): 0
Once SMB2 is disabled, SMB1 will be used again.
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