The Write-cache Buffer
Certain InterSystems IRIS features utilize Windows write-cache buffer flushing, which is enabled by default. To verify this option is correctly enabled and InterSystems IRIS receives the full benefit of these features:
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Open the Device Manager from the Control Panel.
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Select the storage device from the Disk Drives section.
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Click on the Policies tab.
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Ensure that Turn off Windows write-cache buffer flushing on this device is not selected.
