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Event ID 814: MFND child controller QoS statistics information

Windows Event ID Lookup: What Windows event IDs mean: 4625, 4624, 4740, 6008, 41, 7045, 1102 and 3,000 more, with Windows' own message text, the fields and what to check.

Look up a Windows event ID from Event Viewer, a SIEM alert or a log export: what it means, the fields it records, and what to check. Many IDs are used by more than one source (event 41 is both a Kernel-Power crash and a boot error), so every definition is shown, the one people usually mean first. The message text is Windows' own, read from the event providers of Windows 10.0.26200.0, 2026-10-28; the notes are ours, based on Microsoft's security auditing reference.

Try: 4625, 4624, 4740, 6008, 41, 1074, 7045, 1102, 4104, 1149

MFND child controller QoS statistics information.

Event 814
StorPort
System log
Information
Message and fields (as Event Viewer shows them)
MFND child controller QoS statistics information.                    
Adapter port number: …                    
Adapter Guid: …                    
Miniport driver name: …                    
Adapter SerialNumber: …                    
MFND interface name: …                    
PCI vendor ID: …                    
PCI subsystem vendor ID: …                    
Product ID: …                    
Firmware revision: …                    
Child controller ID: …                    
Query reason: …                    
Flags: …                    
Namespace1 utilization: …                    
Namespace2 utilization: …                    
Namespace3 utilization: …                    
Namespace4 utilization: …                    
QoS statistics monitor period: … seconds                    
Swap bucket period: … minutes                    
Log entry format version: …                    
Log sequence number: …                    
Log entry0 timestamp: …                    
Log entries count: …

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Event 814
Kernel-PnP
System log
Information
Message and fields (as Event Viewer shows them)
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