Event ID 1437: Performance summary for device(Port

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

Performance summary for device(Port

Event 1437

StorPort

System log

Information

Message and fields (as Event Viewer shows them)

Performance summary for device(Port = …)                    
Adapter Guid: …                    
Miniport driver Name: …                    
SubsystemId: …                    
ControllerId: …                    
NamespaceId: …                    
TransportType: …                    
TransportAddress: …                    
Product Id: …                    
Firmware revision: …                    
Device Guid: …                    
Bus Type: …                    
Total IO: …                    
For latency buckets of …,                    
The IO success counts are …, …, …, …, …, …, …, …, …, …, …, …, …, ….                    
The IO failed counts are …, …, …, …, …, …, …, …, …, …, …, …, …, ….                    
The IO total latency (in 100ns) are …, …, …, …, …, …, …, …, …, …, …, …, …, ….                    
Total Bytes Read:…                    
Total Bytes Written:…