Microsoft-Windows-StorDiag

58 events across 4 channels

Event	Title	Channel	Sample
1	ClassPnP IO request complete	Operational	Y
2	ClassPnP Enqueue Idle IO request	Operational	N
3	ClassPnP Boost Idle IO request	Operational	N
4	CopyOffload request servicing time taken by lower driver stack(s).	Analytic	N
5	Dispatching a CopyOffload read request.	Diagnose	N
6	Dispatching a CopyOffload write request.	Diagnose	N
7	Completing a CopyOffload IO (read/write) request.	Diagnose	N
8	Device returned sense data.	Diagnose	N
201	Request servicing time taken by lower driver stack(s).	Analytic	Y
202	Dispatching a read request.	Diagnose	N
203	Dispatching a write request.	Diagnose	Y
204	Dispatching a read request.	Diagnose	Y
205	Dispatching a write request.	Diagnose	Y
206	Dispatching a read request.	Diagnose	N
207	Dispatching a write request.	Diagnose	N
208	Completing an IO (read/write) request.	Diagnose	Y
209	Retrying an IO (read/write) request.	Diagnose	N
210	Flush request.	Diagnose	N
211	Flush request.	Diagnose	N
212	Dispatching an IOCTL.	Diagnose	N
213	Dispatching a WMI request.	Diagnose	N
214	Completing a non-read/write request.	Diagnose	Y
215	Dispatching a power request.	Diagnose	N
216	Completing a power request.	Diagnose	N
217	Dispatching a PnP request.	Diagnose	N
218	Completing a PnP request.	Diagnose	N
219	Completing a PnP enumeration request.	Diagnose	N
220	Performing a queue-related operation.	Diagnose	N
221	Dispatching a PassThrough request.	Diagnose	N
222	Upperlevel Trim request servicing time.	Analytic	Y
223	Downlevel Unmap SRB request servicing time taken by lower driver stack(s)	Analytic	Y
224	Report Zone Latency	Diagnose	N
225	Reset Write Pointer Latency	Diagnose	N
226	Completing a failed IOCTL request.	Diagnose	N
500	Completing a failed upper level read request.	Operational	Y
501	Completing a failed upper level write request.	Operational	N
502	Completing a failed upper level paging read request.	Operational	Y
503	Completing a failed upper level paging write request.	Operational	N
504	Completing a failed IOCTL request.	Operational	N
505	Completing a failed Read SCSI SRB request	Operational	Y
506	Completing a failed Write SCSI SRB request	Operational	N
507	Completing a failed non-ReadWrite SCSI SRB request	Operational	Y
508	Completing a failed Non-SCSI SRB request	Operational	N
509	Completing a failed PNP request.	Operational	N
510	Completing a failed Power request.	Operational	N
511	Completing a failed WMI request	Operational	N
512	Get Storage Firmware Information	Operational	N
513	Download Storage Firmware	Operational	N
514	Activate New Storage Firmware	Operational	N
515	Query Device Telemetry	Operational	N
516	Failed to process zone command asynchronously	Operational	N
517	Read capacity failed with SMR device	Operational	N
518	Zone count mismatch	Operational	N
519	Retrieve zone information failed	Operational	N
520	Query Command Duration Limit support and its Mode Page	Operational	N
521	Query Command Duration Limit Mode Page failed	Operational	N
522	Set Command Duration Limit Mode Page failed	Operational	N
523	Read capacity failed	Operational	N

Event ID 1: ClassPnP IO request complete

Provider: Microsoft-Windows-StorDiag
Channel: Operational
Also via: realtime ETW trace
Level: Informational
Task: ClassPnPIOrequestcomplete
Opcode: ClassPnP_IO_End

Description

ClassPnP IO request complete.

Message #

ClassPnP IO request complete

Fields #

Name	Description
`RequestProcessTime` UInt64
`OriginalIrp` Pointer
`Irp` Pointer
`MajorFunction` UInt8
`RequestType` UInt8
`SrbStatus` UInt8
`DeviceNumber` UInt32

Example Event #

{
  "system": {
    "provider": "Microsoft-Windows-StorDiag",
    "guid": "{F5D05B38-80A6-4653-825D-C414E4AB3C68}",
    "event_source_name": "",
    "event_id": 1,
    "version": 1,
    "level": 4,
    "task": 1,
    "opcode": 11,
    "keywords": "0x0000000000000001",
    "time_created": "2026-06-02T05:31:09.868+00:00",
    "event_record_id": 0,
    "correlation": {},
    "execution": {
      "process_id": 0,
      "thread_id": 0
    },
    "channel": "ETW Trace",
    "computer": "JD-DC01-2022",
    "security": {
      "user_id": ""
    }
  },
  "event_data": {
    "DeviceNumber": 0,
    "Irp": "0xFFFF878DBD7D6A20",
    "MajorFunction": 4,
    "OriginalIrp": "0xFFFF878DBBCE3010",
    "RequestProcessTime": 524,
    "RequestType": 0,
    "SrbStatus": 1
  },
  "message": "TaskClassPnPIOEnd"
}

Event ID 2: ClassPnP Enqueue Idle IO request

Provider: Microsoft-Windows-StorDiag
Channel: Operational
Task: ClassPnPEnqueueIdleIOrequest
Opcode: ClassPnP_Enqueue_IdleIO

Description

ClassPnP Enqueue Idle IO request.

Message #

ClassPnP Enqueue Idle IO request

Fields #

Name	Description
`Irp` Pointer
`CurrentIOCount` UInt32
`ActiveIOCount` UInt32
`DeviceNumber` UInt32

Event ID 3: ClassPnP Boost Idle IO request

Provider: Microsoft-Windows-StorDiag
Channel: Operational
Task: ClassPnPBoostIdleIOrequest
Opcode: ClassPnP_Boost_IdleIO

Description

ClassPnP Boost Idle IO request.

Message #

ClassPnP Boost Idle IO request

Fields #

Name	Description
`Irp` Pointer
`Thread` Pointer
`CurrentIOCount` UInt32
`ActiveIOCount` UInt32
`DeviceNumber` UInt32

Event ID 4: CopyOffload request servicing time taken by lower driver stack(s).

Provider: Microsoft-Windows-StorDiag
Channel: Analytic
Task: Class

Description

CopyOffload request servicing time taken by lower driver stack(s).

Message #

CopyOffload request servicing time taken by lower driver stack(s).

Fields #

Name	Description
`DeviceNumber` UInt32
`RequestDurationin100ns` UInt64
`Irp` Pointer
`Command` UInt8
`ServiceAction` UInt8
`SrbStatus` UInt8
`OriginalIrp` Pointer

Event ID 5: Dispatching a CopyOffload read request.

Provider: Microsoft-Windows-StorDiag
Channel: Diagnose
Task: Class
Opcode: Dispatchingofrequest.

Description

Dispatching a CopyOffload read request.

Message #

Dispatching a CopyOffload read request.

Fields #

Name	Description
`DeviceNumber` UInt32
`Irp` Pointer
`IsWrite` Boolean
`FirstStartingLBA` HexInt64
`LengthOfTransferinbytes` UInt64

Event ID 6: Dispatching a CopyOffload write request.

Provider: Microsoft-Windows-StorDiag
Channel: Diagnose
Task: Class
Opcode: Dispatchingofrequest.

Description

Dispatching a CopyOffload write request.

Message #

Dispatching a CopyOffload write request.

Fields #

Name	Description
`DeviceNumber` UInt32
`Irp` Pointer
`IsWrite` Boolean
`FirstStartingLBA` HexInt64
`LengthOfTransferinbytes` UInt64

Event ID 7: Completing a CopyOffload IO (read/write) request.

Provider: Microsoft-Windows-StorDiag
Channel: Diagnose
Task: Class
Opcode: Completionofrequest.

Description

Completing a CopyOffload IO (read/write) request.

Message #

Completing a CopyOffload IO (read/write) request.

Fields #

Name	Description
`DeviceNumber` UInt32
`Irp` Pointer
`TransferredLength` UInt64
`Flags` HexInt32
`NTStatus` HexInt32	NTSTATUS reference

Event ID 8: Device returned sense data.

Provider: Microsoft-Windows-StorDiag
Channel: Diagnose
Task: Class

Description

Device returned sense data.

Message #

Device returned sense data.

Fields #

Name	Description
`DeviceNumber` UInt32
`SenseKey` UInt8
`AddSense` UInt8
`AddSenseQ` UInt8
`CurrentRetryCount` UInt32

Event ID 201: Request servicing time taken by lower driver stack(s).

Provider: Microsoft-Windows-StorDiag
Channel: Analytic
Also via: realtime ETW trace
Level: Informational
Task: Class
Opcode: win:Info

Description

Request servicing time taken by lower driver stack(s).

Message #

Request servicing time taken by lower driver stack(s).

Fields #

Name	Description
`DeviceNumber` UInt32
`RequestDurationin100ns` UInt64
`Irp` Pointer
`Command` UInt8
`SrbStatus` UInt8
`OriginalIrp` Pointer

Example Event #

{
  "system": {
    "provider": "Microsoft-Windows-StorDiag",
    "guid": "{F5D05B38-80A6-4653-825D-C414E4AB3C68}",
    "event_source_name": "",
    "event_id": 201,
    "version": 1,
    "level": 4,
    "task": 200,
    "opcode": 0,
    "keywords": "0x1000000000100000",
    "time_created": "2026-06-02T05:31:09.868+00:00",
    "event_record_id": 0,
    "correlation": {
      "ActivityID": "{04300006-000D-0000-D0FA-62C48D87FFFF}"
    },
    "execution": {
      "process_id": 0,
      "thread_id": 0
    },
    "channel": "ETW Trace",
    "computer": "JD-DC01-2022",
    "security": {
      "user_id": ""
    }
  },
  "event_data": {
    "Command": 42,
    "DeviceNumber": 0,
    "Irp": "0xFFFF878DBD7D6A20",
    "OriginalIrp": "0xFFFF878DBBCE3010",
    "RequestDuration (in 100ns)": 5216,
    "SrbStatus": 1
  },
  "message": "Class"
}

Event ID 202: Dispatching a read request.

Provider: Microsoft-Windows-StorDiag
Channel: Diagnose
Task: Class
Opcode: Dispatchingofrequest.

Description

Dispatching a read request.

Message #

Dispatching a read request.

Fields #

Name	Description
`DeviceNumber` UInt32
`Irp` Pointer
`Command` UInt8
`LengthOfTransferinbytes` UInt64
`LBA` HexInt64
`OriginalIrp` Pointer
`NvCachePriority` UInt8

Event ID 203: Dispatching a write request.

Provider: Microsoft-Windows-StorDiag
Channel: Diagnose
Also via: realtime ETW trace
Level: Informational
Task: Class
Opcode: Dispatchingofrequest.

Description

Dispatching a write request.

Message #

Dispatching a write request.

Fields #

Name	Description
`DeviceNumber` UInt32
`Irp` Pointer
`Command` UInt8
`LengthOfTransferinbytes` UInt64
`LBA` HexInt64
`OriginalIrp` Pointer
`NvCachePriority` UInt8

Example Event #

{
  "system": {
    "provider": "Microsoft-Windows-StorDiag",
    "guid": "{F5D05B38-80A6-4653-825D-C414E4AB3C68}",
    "event_source_name": "",
    "event_id": 203,
    "version": 2,
    "level": 4,
    "task": 200,
    "opcode": 100,
    "keywords": "0x4000000000400000",
    "time_created": "2026-06-02T05:31:09.868+00:00",
    "event_record_id": 0,
    "correlation": {
      "ActivityID": "{04300006-000D-0000-D0FA-62C48D87FFFF}"
    },
    "execution": {
      "process_id": 12112,
      "thread_id": 7804
    },
    "channel": "ETW Trace",
    "computer": "JD-DC01-2022",
    "security": {
      "user_id": ""
    }
  },
  "event_data": {
    "Command": 42,
    "DeviceNumber": 0,
    "Irp": "0xFFFF878DBD7D6A20",
    "LBA": "78C4800800000000",
    "LengthOfTransfer (in bytes)": 4096,
    "NvCachePriority": 255,
    "OriginalIrp": "0xFFFF878DBBCE3010"
  },
  "message": "Class"
}

Event ID 204: Dispatching a read request.

Provider: Microsoft-Windows-StorDiag
Channel: Diagnose
Also via: realtime ETW trace
Level: Informational
Task: Class
Opcode: Dispatchingofrequest.

Description

Dispatching a read request.

Message #

Dispatching a read request.

Fields #

Name	Description
`DeviceNumber` UInt32
`Irp` Pointer
`Command` UInt8
`LengthOfTransferinbytes` UInt64
`LBA` HexInt64
`OriginalIrp` Pointer
`NvCachePriority` UInt8

Example Event #

{
  "system": {
    "provider": "Microsoft-Windows-StorDiag",
    "guid": "{F5D05B38-80A6-4653-825D-C414E4AB3C68}",
    "event_source_name": "",
    "event_id": 204,
    "version": 2,
    "level": 4,
    "task": 200,
    "opcode": 100,
    "keywords": "0x4000000000A00000",
    "time_created": "2026-06-02T05:31:10.248+00:00",
    "event_record_id": 0,
    "correlation": {
      "ActivityID": "{04300006-000B-0000-403D-4FB68D87FFFF}"
    },
    "execution": {
      "process_id": 2140,
      "thread_id": 16816
    },
    "channel": "ETW Trace",
    "computer": "JD-DC01-2022",
    "security": {
      "user_id": ""
    }
  },
  "event_data": {
    "Command": 40,
    "DeviceNumber": 0,
    "Irp": "0xFFFF878DBD7D6A20",
    "LBA": "2800330900000000",
    "LengthOfTransfer (in bytes)": 4096,
    "NvCachePriority": 255,
    "OriginalIrp": "0xFFFF878DBC990A20"
  },
  "message": "Class"
}

Event ID 205: Dispatching a write request.

Provider: Microsoft-Windows-StorDiag
Channel: Diagnose
Also via: realtime ETW trace
Level: Informational
Task: Class
Opcode: Dispatchingofrequest.

Description

Dispatching a write request.

Message #

Dispatching a write request.

Fields #

Name	Description
`DeviceNumber` UInt32
`Irp` Pointer
`Command` UInt8
`LengthOfTransferinbytes` UInt64
`LBA` HexInt64
`OriginalIrp` Pointer
`NvCachePriority` UInt8

Example Event #

{
  "system": {
    "provider": "Microsoft-Windows-StorDiag",
    "guid": "{F5D05B38-80A6-4653-825D-C414E4AB3C68}",
    "event_source_name": "",
    "event_id": 205,
    "version": 2,
    "level": 4,
    "task": 200,
    "opcode": 100,
    "keywords": "0x4000000001400000",
    "time_created": "2026-06-02T05:31:09.868+00:00",
    "event_record_id": 0,
    "correlation": {
      "ActivityID": "{04300006-000D-0000-D0FA-62C48D87FFFF}"
    },
    "execution": {
      "process_id": 12112,
      "thread_id": 7804
    },
    "channel": "ETW Trace",
    "computer": "JD-DC01-2022",
    "security": {
      "user_id": ""
    }
  },
  "event_data": {
    "Command": 42,
    "DeviceNumber": 0,
    "Irp": "0xFFFF878DBD7D6A20",
    "LBA": "88C95D0000000000",
    "LengthOfTransfer (in bytes)": 16384,
    "NvCachePriority": 255,
    "OriginalIrp": "0xFFFF878DC3EECB60"
  },
  "message": "Class"
}

Event ID 206: Dispatching a read request.

Provider: Microsoft-Windows-StorDiag
Channel: Diagnose
Task: Class
Opcode: Dispatchingofrequest.

Description

Dispatching a read request.

Message #

Dispatching a read request.

Fields #

Name	Description
`DeviceNumber` UInt32
`Irp` Pointer
`Command` UInt8
`LengthOfTransferinbytes` UInt64
`LBA` HexInt64
`OriginalIrp` Pointer
`NvCachePriority` UInt8

Event ID 207: Dispatching a write request.

Provider: Microsoft-Windows-StorDiag
Channel: Diagnose
Task: Class
Opcode: Dispatchingofrequest.

Description

Dispatching a write request.

Message #

Dispatching a write request.

Fields #

Name	Description
`DeviceNumber` UInt32
`Irp` Pointer
`Command` UInt8
`LengthOfTransferinbytes` UInt64
`LBA` HexInt64
`OriginalIrp` Pointer
`NvCachePriority` UInt8

Event ID 208: Completing an IO (read/write) request.

Provider: Microsoft-Windows-StorDiag
Channel: Diagnose
Also via: realtime ETW trace
Level: Informational
Task: Class
Opcode: Completionofrequest.

Description

Completing an IO (read/write) request.

Message #

Completing an IO (read/write) request.

Fields #

Name	Description
`DeviceNumber` UInt32
`Irp` Pointer
`NTStatus` HexInt32	NTSTATUS reference
`SrbStatus` UInt8
`ScsiStatus` UInt8
`SenseKey` UInt8
`AddSense` UInt8
`AddSenseQ` UInt8
`OriginalIrp` Pointer
`NumberOfTimesRetried` UInt32

Example Event #

{
  "system": {
    "provider": "Microsoft-Windows-StorDiag",
    "guid": "{F5D05B38-80A6-4653-825D-C414E4AB3C68}",
    "event_source_name": "",
    "event_id": 208,
    "version": 2,
    "level": 4,
    "task": 200,
    "opcode": 101,
    "keywords": "0x4000000007E00000",
    "time_created": "2026-06-02T05:31:09.868+00:00",
    "event_record_id": 0,
    "correlation": {
      "ActivityID": "{04300006-000D-0000-D0FA-62C48D87FFFF}"
    },
    "execution": {
      "process_id": 0,
      "thread_id": 0
    },
    "channel": "ETW Trace",
    "computer": "JD-DC01-2022",
    "security": {
      "user_id": ""
    }
  },
  "event_data": {
    "AddSense": 0,
    "AddSenseQ": 0,
    "DeviceNumber": 0,
    "Irp": "0xFFFF878DBD7D6A20",
    "NTStatus": "00000000",
    "NumberOfTimesRetried": 0,
    "OriginalIrp": "0xFFFF878DBBCE3010",
    "ScsiStatus": 0,
    "SenseKey": 0,
    "SrbStatus": 1
  },
  "message": "Class"
}

Event ID 209: Retrying an IO (read/write) request.

Provider: Microsoft-Windows-StorDiag
Channel: Diagnose
Task: Class
Opcode: Retryhandling.

Description

Retrying an IO (read/write) request.

Message #

Retrying an IO (read/write) request.

Fields #

Name	Description
`DeviceNumber` UInt32
`Irp` Pointer
`CurrentRetryCount` UInt32
`NTStatus` HexInt32	NTSTATUS reference
`SrbStatus` UInt8
`ScsiStatus` UInt8
`SenseKey` UInt8
`AddSense` UInt8
`AddSenseQ` UInt8

Event ID 210: Flush request.

Provider: Microsoft-Windows-StorDiag
Channel: Diagnose
Task: Class

Description

Flush request.

Message #

Flush request.

Fields #

Name	Description
`DeviceNumber` UInt32
`Irp` Pointer
`Bus` UInt8
`Target` UInt8
`LUN` UInt8

Event ID 211: Flush request.

Provider: Microsoft-Windows-StorDiag
Channel: Diagnose
Task: Class
Opcode: Completionofrequest.

Description

Flush request.

Message #

Flush request.

Fields #

Name	Description
`DeviceNumber` UInt32
`Irp` Pointer
`NTStatus` HexInt32	NTSTATUS reference
`SrbStatus` UInt8
`ScsiStatus` UInt8
`SenseKey` UInt8
`AddSense` UInt8
`AddSenseQ` UInt8
`OriginalIrp` Pointer

Event ID 212: Dispatching an IOCTL.

Provider: Microsoft-Windows-StorDiag
Channel: Diagnose
Task: Class
Opcode: Dispatchingofrequest.

Description

Dispatching an IOCTL.

Message #

Dispatching an IOCTL.

Fields #

Name	Description
`DeviceNumber` UInt32
`Irp` Pointer
`MajorFunction` HexInt32
`MinorFunction` HexInt32
`Parameter` HexInt32

Event ID 213: Dispatching a WMI request.

Provider: Microsoft-Windows-StorDiag
Channel: Diagnose
Task: Class
Opcode: Dispatchingofrequest.

Description

Dispatching a WMI request.

Message #

Dispatching a WMI request.

Fields #

Name	Description
`DeviceNumber` UInt32
`Irp` Pointer
`MajorFunction` HexInt32
`MinorFunction` HexInt32
`Parameter` HexInt32

Event ID 214: Completing a non-read/write request.

Provider: Microsoft-Windows-StorDiag
Channel: Diagnose
Also via: realtime ETW trace
Level: Informational
Task: Class
Opcode: Completionofrequest.

Description

Completing a non-read/write request.

Message #

Completing a non-read/write request.

Fields #

Name	Description
`DeviceNumber` UInt32
`Irp` Pointer
`Status` HexInt32	NTSTATUS reference

Example Event #

{
  "system": {
    "provider": "Microsoft-Windows-StorDiag",
    "guid": "{F5D05B38-80A6-4653-825D-C414E4AB3C68}",
    "event_source_name": "",
    "event_id": 214,
    "version": 1,
    "level": 4,
    "task": 200,
    "opcode": 101,
    "keywords": "0x40000000C0000000",
    "time_created": "2026-06-02T06:03:26.286+00:00",
    "event_record_id": 0,
    "correlation": {},
    "execution": {
      "process_id": 4,
      "thread_id": 2520
    },
    "channel": "ETW Trace",
    "computer": "DESKTOP-FF3N5XK",
    "security": {
      "user_id": ""
    }
  },
  "event_data": {
    "DeviceNumber": 0,
    "Irp": "0xFFFFBD09F10D2010",
    "Status": "00000000"
  },
  "message": "Class"
}

Event ID 215: Dispatching a power request.

Provider: Microsoft-Windows-StorDiag
Channel: Diagnose
Task: Class
Opcode: Dispatchingofrequest.

Description

Dispatching a power request.

Message #

Dispatching a power request.

Fields #

Name	Description
`DeviceNumber` UInt32
`Irp` Pointer
`MinorFunction` HexInt32
`Type` UInt8
`OldState` HexInt32
`NewState` HexInt32
`Action` HexInt32
`PowerStateContext` HexInt32

Event ID 216: Completing a power request.

Provider: Microsoft-Windows-StorDiag
Channel: Diagnose
Task: Class
Opcode: Completionofrequest.

Description

Completing a power request.

Message #

Completing a power request.

Fields #

Name	Description
`DeviceNumber` UInt32
`Irp` Pointer
`Status` HexInt32	NTSTATUS reference

Event ID 217: Dispatching a PnP request.

Provider: Microsoft-Windows-StorDiag
Channel: Diagnose
Task: Class
Opcode: Dispatchingofrequest.

Description

Dispatching a PnP request.

Message #

Dispatching a PnP request.

Fields #

Name	Description
`DeviceNumber` UInt32
`Irp` Pointer
`MinorFunction` HexInt32
`Type` HexInt32
`DeviceObject` Pointer

Event ID 218: Completing a PnP request.

Provider: Microsoft-Windows-StorDiag
Channel: Diagnose
Task: Class
Opcode: Completionofrequest.

Description

Completing a PnP request.

Message #

Completing a PnP request.

Fields #

Name	Description
`DeviceNumber` UInt32
`Irp` Pointer
`Status` HexInt32	NTSTATUS reference

Event ID 219: Completing a PnP enumeration request.

Provider: Microsoft-Windows-StorDiag
Channel: Diagnose
Task: Class
Opcode: Completionofrequest.

Description

Completing a PnP enumeration request.

Message #

Completing a PnP enumeration request.

Fields #

Name	Description
`DeviceNumber` UInt32
`Irp` Pointer
`NumberOfChildren` UInt32
`Status` HexInt32	NTSTATUS reference

Event ID 220: Performing a queue-related operation.

Provider: Microsoft-Windows-StorDiag
Channel: Diagnose
Task: Class
Opcode: Queue_relatedoperation.

Description

Performing a queue-related operation.

Message #

Performing a queue-related operation.

Fields #

Name	Description
`DeviceNumber` UInt32
`QueueTag` HexInt32
`Operation` UInt8	Known values `%%2456` Open key file. `%%2457` Delete key file. `%%2458` Read persisted key from file. `%%2459` Write persisted key to file. `%%2464` Export of persistent cryptographic key. `%%2465` Import of persistent cryptographic key. `%%2480` Open Key. `%%2481` Create Key. `%%2482` Delete Key. `%%2483` Encrypt. `%%2484` Decrypt. `%%2485` Sign hash. `%%2486` Secret agreement. `%%2487` Domain settings. `%%2488` Local settings. `%%2489` Add provider. `%%2490` Remove provider. `%%2491` Add context. `%%2492` Remove context. `%%2493` Add function. `%%2494` Remove function. `%%2495` Add function provider. `%%2496` Remove function provider. `%%2497` Add function property. `%%2498` Remove function property. `%%2499` Machine key. `%%2500` User key. `%%2501` Key Derivation. `%%2502` Claim Creation. `%%2503` Claim Verification.
`Status` HexInt32	NTSTATUS reference

Event ID 221: Dispatching a PassThrough request.

Provider: Microsoft-Windows-StorDiag
Channel: Diagnose
Task: Class
Opcode: Dispatchingofrequest.

Description

Dispatching a PassThrough request.

Message #

Dispatching a PassThrough request.

Fields #

Name	Description
`DeviceNumber` UInt32
`Irp` Pointer
`MajorFunction` HexInt32
`MinorFunction` HexInt32
`Parameter` HexInt32

Event ID 222: Upperlevel Trim request servicing time.

Provider: Microsoft-Windows-StorDiag
Channel: Analytic
Also via: realtime ETW trace
Level: Informational
Task: Class
Opcode: Completionofrequest.

Description

Upperlevel Trim request servicing time.

Message #

Upperlevel Trim request servicing time.

Fields #

Name	Description
`DeviceGUID` GUID
`DeviceNumber` UInt32
`RequestDurationin100ns` UInt64
`UpperLevelIrp` Pointer
`IrpStatus` HexInt32
`DsmFlags` UInt32
`DataSetRangesCount` UInt32
`DataSetRanges` UInt32

Example Event #

{
  "system": {
    "provider": "Microsoft-Windows-StorDiag",
    "guid": "{F5D05B38-80A6-4653-825D-C414E4AB3C68}",
    "event_source_name": "",
    "event_id": 222,
    "version": 1,
    "level": 4,
    "task": 200,
    "opcode": 101,
    "keywords": "0x1000400000000000",
    "time_created": "2026-06-02T06:03:26.286+00:00",
    "event_record_id": 0,
    "correlation": {},
    "execution": {
      "process_id": 4,
      "thread_id": 2520
    },
    "channel": "ETW Trace",
    "computer": "DESKTOP-FF3N5XK",
    "security": {
      "user_id": ""
    }
  },
  "event_data": {
    "DataSetRanges": "00C0230E060000000040000000000000",
    "DataSetRangesCount": 1,
    "DeviceGUID": "{5A7D9CED-A852-A1AC-E3DA-7B3E59928B2A}",
    "DeviceNumber": 0,
    "DsmFlags": 2147483648,
    "IrpStatus": "00000000",
    "RequestDuration (in 100ns)": 10333,
    "Upper Level Irp": "0xFFFFBD09F10D2010"
  },
  "message": "Class"
}

Event ID 223: Downlevel Unmap SRB request servicing time taken by lower driver stack(s)

Provider: Microsoft-Windows-StorDiag
Channel: Analytic
Also via: realtime ETW trace
Level: Informational
Task: Class
Opcode: Completionofrequest.

Description

Downlevel Unmap SRB request servicing time taken by lower driver stack(s).

Message #

Downlevel Unmap SRB request servicing time taken by lower driver stack(s)

Fields #

Name	Description
`DeviceGUID` GUID
`DeviceNumber` UInt32
`RequestDurationin100ns` UInt64
`OriginalIrp` Pointer
`SrbStatus` UInt8
`SrbFlags` HexInt32
`MaxAllowedLbaCount` UInt64
`MaxAllowedBlockDescriptorCount` UInt64
`LbaSizeinBytes` UInt32
`Srb_BlockDescriptorCount` UInt32
`Srb_BlockDescriptors` Float

Example Event #

{
  "system": {
    "provider": "Microsoft-Windows-StorDiag",
    "guid": "{F5D05B38-80A6-4653-825D-C414E4AB3C68}",
    "event_source_name": "",
    "event_id": 223,
    "version": 1,
    "level": 4,
    "task": 200,
    "opcode": 101,
    "keywords": "0x1000400000000000",
    "time_created": "2026-06-02T06:03:26.286+00:00",
    "event_record_id": 0,
    "correlation": {},
    "execution": {
      "process_id": 4,
      "thread_id": 2520
    },
    "channel": "ETW Trace",
    "computer": "DESKTOP-FF3N5XK",
    "security": {
      "user_id": ""
    }
  },
  "event_data": {
    "DeviceGUID": "{5A7D9CED-A852-A1AC-E3DA-7B3E59928B2A}",
    "DeviceNumber": 0,
    "LbaSize (in Bytes)": 512,
    "MaxAllowedBlockDescriptorCount": 1,
    "MaxAllowedLbaCount": 4194303,
    "Original Irp": "0xFFFFBD09F10D2010",
    "RequestDuration (in 100ns)": 8119,
    "SrbFlags": "00800000",
    "SrbStatus": 1,
    "Srb_BlockDescriptorCount": 1,
    "Srb_BlockDescriptors": "00000000030711E00000002000000000"
  },
  "message": "Class"
}

Event ID 224: Report Zone Latency

Provider: Microsoft-Windows-StorDiag
Channel: Diagnose
Task: Class
Opcode: Completionofrequest.

Description

Report Zone Latency.

Message #

Report Zone Latency

Fields #

Name	Description
`DeviceNumber` UInt32
`RequestDurationin100ns` UInt64
`UpperLevelIrp` Pointer
`IrpStatus` HexInt32
`IsPartial` Boolean
`StartingOffset` UInt64
`BufferSize` UInt32

Event ID 225: Reset Write Pointer Latency

Provider: Microsoft-Windows-StorDiag
Channel: Diagnose
Task: Class
Opcode: Completionofrequest.

Description

Reset Write Pointer Latency.

Message #

Reset Write Pointer Latency

Fields #

Name	Description
`DeviceNumber` UInt32
`RequestDurationin100ns` UInt64
`UpperLevelIrp` Pointer
`IrpStatus` HexInt32
`ResetAll` Boolean
`StartingOffset` UInt64

Event ID 226: Completing a failed IOCTL request.

Provider: Microsoft-Windows-StorDiag
Channel: Diagnose
Task: Class
Opcode: Completionofrequest.

Description

Completing a failed IOCTL request.

Message #

Completing a failed IOCTL request.

Fields #

Name	Description
`DeviceGUID` GUID
`DeviceNumber` UInt32
`Vendor` AnsiString
`Model` AnsiString
`FirmwareVersion` AnsiString
`SerialNumber` AnsiString
`IrpStatus` HexInt32
`IoctlControlCode` HexInt32

Event ID 500: Completing a failed upper level read request.

Provider: Microsoft-Windows-StorDiag
Channel: Operational
Level: Error
Task: Class
Opcode: Completionofrequest.

Description

Completing a failed upper level read request.

Message #

Completing a failed upper level read request.

Fields #

Name	Description
`DeviceGUID` GUID
`DeviceNumber` UInt32
`Vendor` AnsiString
`Model` AnsiString
`FirmwareVersion` AnsiString
`SerialNumber` AnsiString
`IrpStatus` HexInt32
`LBA` HexInt64
`TransferByteCount` UInt64
`NvCachePriority` UInt8
`PagingPriority` UInt32

Example Event #

{
  "system": {
    "provider": "Microsoft-Windows-StorDiag",
    "guid": "{F5D05B38-80A6-4653-825D-C414E4AB3C68}",
    "event_source_name": "",
    "event_id": 500,
    "version": 1,
    "level": 2,
    "task": 200,
    "opcode": 101,
    "keywords": 576460752305520640,
    "time_created": "2026-03-20T19:05:01.3457184+00:00",
    "event_record_id": 57,
    "correlation": {},
    "execution": {
      "process_id": 3800,
      "thread_id": 8480
    },
    "channel": "Microsoft-Windows-Storage-ClassPnP/Operational",
    "computer": "JD-WIN11-22H2-1.ludus.domain",
    "security": {
      "user_id": ""
    }
  },
  "event_data": {
    "DeviceGUID": "{e8422238-88a7-116d-3f2e-b657cf884f03}",
    "DeviceNumber": "1",
    "Vendor": "Msft    ",
    "Model": "Virtual Disk    ",
    "FirmwareVersion": "1.0 ",
    "SerialNumber": "NULL",
    "IrpStatus": "0xc000000e",
    "LBA": "0x40800",
    "TransferByteCount": "512",
    "NvCachePriority": "255",
    "PagingPriority": "2"
  },
  "message": "Completing a failed upper level read request."
}

Event ID 501: Completing a failed upper level write request.

Provider: Microsoft-Windows-StorDiag
Channel: Operational
Task: Class
Opcode: Completionofrequest.

Description

Completing a failed upper level write request.

Message #

Completing a failed upper level write request.

Fields #

Name	Description
`DeviceGUID` GUID
`DeviceNumber` UInt32
`Vendor` AnsiString
`Model` AnsiString
`FirmwareVersion` AnsiString
`SerialNumber` AnsiString
`IrpStatus` HexInt32
`LBA` HexInt64
`TransferByteCount` UInt64
`NvCachePriority` UInt8
`PagingPriority` UInt32

Event ID 502: Completing a failed upper level paging read request.

Provider: Microsoft-Windows-StorDiag
Channel: Operational
Level: Error
Task: Class
Opcode: Completionofrequest.

Description

Completing a failed upper level paging read request.

Message #

Completing a failed upper level paging read request.

Fields #

Name	Description
`DeviceGUID` GUID
`DeviceNumber` UInt32
`Vendor` AnsiString
`Model` AnsiString
`FirmwareVersion` AnsiString
`SerialNumber` AnsiString
`IrpStatus` HexInt32
`LBA` HexInt64
`TransferByteCount` UInt64
`NvCachePriority` UInt8
`PagingPriority` UInt32

Example Event #

{
  "system": {
    "provider": "Microsoft-Windows-StorDiag",
    "guid": "F5D05B38-80A6-4653-825D-C414E4AB3C68",
    "event_source_name": "",
    "event_id": 502,
    "version": 1,
    "level": 2,
    "task": 200,
    "opcode": 101,
    "keywords": 576460752313909248,
    "time_created": "2026-03-13T20:08:10.726401+00:00",
    "event_record_id": 2,
    "correlation": {},
    "execution": {
      "process_id": 3952,
      "thread_id": 5384
    },
    "channel": "Microsoft-Windows-Storage-ClassPnP/Operational",
    "computer": "LAB-WIN11.ludus.domain",
    "security": {
      "user_id": ""
    }
  },
  "event_data": {
    "DeviceGUID": "96B63F5A-0716-1FE9-02F0-284D47E6F444",
    "DeviceNumber": 1,
    "Vendor": "Msft    ",
    "Model": "Virtual Disk    ",
    "FirmwareVersion": "1.0 ",
    "SerialNumber": "NULL",
    "IrpStatus": "0xc000000e",
    "LBA": "0x40800",
    "TransferByteCount": 4096,
    "NvCachePriority": 255,
    "PagingPriority": 1
  },
  "message": ""
}

Event ID 503: Completing a failed upper level paging write request.

Provider: Microsoft-Windows-StorDiag
Channel: Operational
Task: Class
Opcode: Completionofrequest.

Description

Completing a failed upper level paging write request.

Message #

Completing a failed upper level paging write request.

Fields #

Name	Description
`DeviceGUID` GUID
`DeviceNumber` UInt32
`Vendor` AnsiString
`Model` AnsiString
`FirmwareVersion` AnsiString
`SerialNumber` AnsiString
`IrpStatus` HexInt32
`LBA` HexInt64
`TransferByteCount` UInt64
`NvCachePriority` UInt8
`PagingPriority` UInt32

Event ID 504: Completing a failed IOCTL request.

Provider: Microsoft-Windows-StorDiag
Channel: Operational
Task: Class
Opcode: Completionofrequest.

Description

Completing a failed IOCTL request.

Message #

Completing a failed IOCTL request.

Fields #

Name	Description
`DeviceGUID` GUID
`DeviceNumber` UInt32
`Vendor` AnsiString
`Model` AnsiString
`FirmwareVersion` AnsiString
`SerialNumber` AnsiString
`IrpStatus` HexInt32
`IoctlControlCode` HexInt32

Event ID 505: Completing a failed Read SCSI SRB request

Provider: Microsoft-Windows-StorDiag
Channel: Operational
Level: Error
Task: Class
Opcode: Completionofrequest.

Description

Completing a failed Read SCSI SRB request.

Message #

Completing a failed Read SCSI SRB request

Fields #

Name	Description
`DeviceGUID` GUID
`DeviceNumber` UInt32
`Vendor` AnsiString
`Model` AnsiString
`FirmwareVersion` AnsiString
`SerialNumber` AnsiString
`DownLevelIrpStatus` HexInt32
`SrbStatus` UInt8
`ScsiStatus` UInt8
`SenseKey` UInt8
`AdditionalSenseCode` UInt8
`AdditionalSenseCodeQualifier` UInt8
`CdbByteCount` UInt32
`CdbBytes` Binary
`NumberOfRetriesDone` UInt8

Example Event #

{
  "system": {
    "provider": "Microsoft-Windows-StorDiag",
    "guid": "F5D05B38-80A6-4653-825D-C414E4AB3C68",
    "event_source_name": "",
    "event_id": 505,
    "version": 1,
    "level": 2,
    "task": 200,
    "opcode": 101,
    "keywords": 576460752347463680,
    "time_created": "2026-03-13T20:08:10.726385+00:00",
    "event_record_id": 1,
    "correlation": {
      "ActivityID": "03A00006-0001-0000-6096-45970B92FFFF"
    },
    "execution": {
      "process_id": 3952,
      "thread_id": 5384
    },
    "channel": "Microsoft-Windows-Storage-ClassPnP/Operational",
    "computer": "LAB-WIN11.ludus.domain",
    "security": {
      "user_id": ""
    }
  },
  "event_data": {
    "DeviceGUID": "96B63F5A-0716-1FE9-02F0-284D47E6F444",
    "DeviceNumber": 1,
    "Vendor": "Msft    ",
    "Model": "Virtual Disk    ",
    "FirmwareVersion": "1.0 ",
    "SerialNumber": "NULL",
    "DownLevelIrpStatus": "0xc000000e",
    "SrbStatus": 8,
    "ScsiStatus": 2,
    "SenseKey": 0,
    "AdditionalSenseCode": 0,
    "AdditionalSenseCodeQualifier": 0,
    "CdbByteCount": 16,
    "CdbBytes": "88000000000000040800000000080000",
    "NumberOfRetriesDone": 0
  },
  "message": ""
}

Event ID 506: Completing a failed Write SCSI SRB request

Provider: Microsoft-Windows-StorDiag
Channel: Operational
Task: Class
Opcode: Completionofrequest.

Description

Completing a failed Write SCSI SRB request.

Message #

Completing a failed Write SCSI SRB request

Fields #

Name	Description
`DeviceGUID` GUID
`DeviceNumber` UInt32
`Vendor` AnsiString
`Model` AnsiString
`FirmwareVersion` AnsiString
`SerialNumber` AnsiString
`DownLevelIrpStatus` HexInt32
`SrbStatus` UInt8
`ScsiStatus` UInt8
`SenseKey` UInt8
`AdditionalSenseCode` UInt8
`AdditionalSenseCodeQualifier` UInt8
`CdbByteCount` UInt32
`CdbBytes` Binary
`NumberOfRetriesDone` UInt8

Event ID 507: Completing a failed non-ReadWrite SCSI SRB request

Provider: Microsoft-Windows-StorDiag
Channel: Operational
Level: Error
Task: Class
Opcode: Completionofrequest.

Description

Completing a failed non-ReadWrite SCSI SRB request.

Message #

Completing a failed non-ReadWrite SCSI SRB request

Fields #

Name	Description
`DeviceGUID` GUID
`DeviceNumber` UInt32
`Vendor` AnsiString
`Model` AnsiString
`FirmwareVersion` AnsiString
`SerialNumber` AnsiString
`DownLevelIrpStatus` HexInt32
`SrbStatus` UInt8
`ScsiStatus` UInt8
`SenseKey` UInt8
`AdditionalSenseCode` UInt8
`AdditionalSenseCodeQualifier` UInt8
`CdbByteCount` UInt32
`CdbBytes` Binary
`NumberOfRetriesDone` UInt8

Example Event #

{
  "system": {
    "provider": "Microsoft-Windows-StorDiag",
    "guid": "{F5D05B38-80A6-4653-825D-C414E4AB3C68}",
    "event_source_name": "",
    "event_id": 507,
    "version": 1,
    "level": 2,
    "task": 200,
    "opcode": 101,
    "keywords": 576460752437641216,
    "time_created": "2026-05-29T16:32:51.0502111+00:00",
    "event_record_id": 102,
    "correlation": {
      "ActivityID": "{00000000-0000-0000-0000-000000000001}"
    },
    "execution": {
      "process_id": 812,
      "thread_id": 816
    },
    "channel": "Microsoft-Windows-Storage-ClassPnP/Operational",
    "computer": "telemetry-DC-a.cell-a.ludus.domain",
    "security": {
      "user_id": "S-1-5-18"
    }
  },
  "event_data": {
    "DeviceGUID": "{5a7d9ced-a852-a1ac-e3da-7b3e59928b2a}",
    "DeviceNumber": "0",
    "Vendor": "Red Hat ",
    "Model": "VirtIO",
    "FirmwareVersion": "0001",
    "SerialNumber": "",
    "DownLevelIrpStatus": "0xc0000185",
    "SrbStatus": "6",
    "ScsiStatus": "0",
    "SenseKey": "0",
    "AdditionalSenseCode": "0",
    "AdditionalSenseCodeQualifier": "0",
    "CdbByteCount": "6",
    "CdbBytes": "151000001800",
    "NumberOfRetriesDone": "0"
  },
  "message": "Completing a failed non-ReadWrite SCSI SRB request"
}

Event ID 508: Completing a failed Non-SCSI SRB request

Provider: Microsoft-Windows-StorDiag
Channel: Operational
Task: Class
Opcode: Completionofrequest.

Description

Completing a failed Non-SCSI SRB request.

Message #

Completing a failed Non-SCSI SRB request

Fields #

Name	Description
`DeviceGUID` GUID
`DeviceNumber` UInt32
`Vendor` AnsiString
`Model` AnsiString
`FirmwareVersion` AnsiString
`SerialNumber` AnsiString
`DownLevelIrpStatus` HexInt32
`SrbStatus` UInt8
`SrbFunction` HexInt32
`SrbFlags` HexInt32
`NumberOfRetriesDone` UInt8

Event ID 509: Completing a failed PNP request.

Provider: Microsoft-Windows-StorDiag
Channel: Operational
Task: Class
Opcode: Completionofrequest.

Description

Completing a failed PNP request.

Message #

Completing a failed PNP request.

Fields #

Name	Description
`DeviceGUID` GUID
`DeviceNumber` UInt32
`Vendor` AnsiString
`Model` AnsiString
`FirmwareVersion` AnsiString
`SerialNumber` AnsiString
`IrpStatus` HexInt32
`IrpMinorFunction` UInt8
`PnPType` UInt32
`PnPUsageInPath` Boolean
`CurrentPnpState` UInt32
`PreviousPnpState` UInt32
`PagingPathUsageCount` UInt32
`HibernationPathUsageCount` UInt32
`DumpPathUsageCount` UInt32

Event ID 510: Completing a failed Power request.

Provider: Microsoft-Windows-StorDiag
Channel: Operational
Task: Class
Opcode: Completionofrequest.

Description

Completing a failed Power request.

Message #

Completing a failed Power request.

Fields #

Name	Description
`DeviceGUID` GUID
`DeviceNumber` UInt32
`Vendor` AnsiString
`Model` AnsiString
`FirmwareVersion` AnsiString
`SerialNumber` AnsiString
`IrpStatus` HexInt32
`IrpMinorFunction` UInt8
`PowerSystemContext` UInt32
`PowerStateType` UInt32
`PowerState` UInt32
`PowerShutdownType` UInt32
`CurrentPowerState` UInt32
`ContextPowerChangeState` UInt32

Event ID 511: Completing a failed WMI request

Provider: Microsoft-Windows-StorDiag
Channel: Operational
Task: Class
Opcode: Completionofrequest.

Description

Completing a failed WMI request.

Message #

Completing a failed WMI request

Fields #

Name	Description
`DeviceGUID` GUID
`DeviceNumber` UInt32
`Vendor` AnsiString
`Model` AnsiString
`FirmwareVersion` AnsiString
`SerialNumber` AnsiString
`IrpStatus` HexInt32
`IrpMinorFunction` UInt8
`WmiDataBlockGUID` GUID
`WmiProviderId` Pointer

Event ID 512: Get Storage Firmware Information

Provider: Microsoft-Windows-StorDiag
Channel: Operational
Task: Class
Opcode: Completionofrequest.

Description

Get Storage Firmware Information.

Message #

Get Storage Firmware Information

Fields #

Name	Description
`DeviceGUID` GUID
`Status` HexInt32	NTSTATUS reference
`InputBufferLength` UInt32
`OutputBufferLength` UInt32
`DeviceNumber` UInt32
`PortDriverCodeSet` UInt32
`FirmwareGetInfoSupport` UInt32
`QueryFlag` UInt32

Event ID 513: Download Storage Firmware

Provider: Microsoft-Windows-StorDiag
Channel: Operational
Task: Class
Opcode: Completionofrequest.

Description

Download Storage Firmware.

Message #

Download Storage Firmware

Fields #

Name	Description
`DeviceGUID` GUID
`Status` HexInt32	NTSTATUS reference
`InputBufferLength` UInt32
`DeviceNumber` UInt32
`PortDriverCodeSet` UInt32
`FirmwareGetInfoSupport` UInt32
`HWFirmwareSupportUpgrade` UInt8
`ImagePayloadAlignment` UInt32
`SlotCount` UInt8
`SlotIndex` UInt32
`FWImageVersion` UInt32
`FWSize` UInt32
`FWSlot` UInt8
`FWImageBufferSize` UInt64
`Flags` UInt32
`FWImageOffset` UInt64

Event ID 514: Activate New Storage Firmware

Provider: Microsoft-Windows-StorDiag
Channel: Operational
Task: Class
Opcode: Completionofrequest.

Description

Activate New Storage Firmware.

Message #

Activate New Storage Firmware

Fields #

Name	Description
`DeviceGUID` GUID
`Status` HexInt32	NTSTATUS reference
`InputBufferLength` UInt32
`DeviceNumber` UInt32
`PortDriverCodeSet` UInt32
`FirmwareGetInfoSupport` UInt32
`HWFirmwareSupportUpgrade` UInt8
`SlotCount` UInt8
`SlotIndex` UInt32
`FWImageVersion` UInt32
`FWSize` UInt32
`FWSlot` UInt8
`Flags` UInt32

Event ID 515: Query Device Telemetry

Provider: Microsoft-Windows-StorDiag
Channel: Operational
Task: Class
Opcode: Completionofrequest.

Description

Query Device Telemetry.

Message #

Query Device Telemetry

Fields #

Name	Description
`DeviceGUID` GUID
`DeviceNumber` UInt32
`T10VendorIdLength` UInt32
`T10VendorId` Binary
`DataSet1Length` UInt32
`DataSet2Length` UInt32
`DataSet3Length` UInt32
`DataSet4Length` UInt32
`DataVersion` UInt8
`ReasonIdentifierLength` UInt32
`ReasonIdentifier` Binary

Event ID 516: Failed to process zone command asynchronously

Provider: Microsoft-Windows-StorDiag
Channel: Operational
Task: Class
Opcode: Completionofrequest.

Description

Failed to process zone command asynchronously.

Message #

Failed to process zone command asynchronously

Fields #

Name	Description
`DeviceGUID` GUID
`DeviceNumber` UInt32
`Vendor` AnsiString
`Model` AnsiString
`FirmwareVersion` AnsiString
`SerialNumber` AnsiString
`DsmAction` UInt32

Event ID 517: Read capacity failed with SMR device

Provider: Microsoft-Windows-StorDiag
Channel: Operational
Task: Class
Opcode: Completionofrequest.

Description

Read capacity failed with SMR device.

Message #

Read capacity failed with SMR device

Fields #

Name	Description
`DeviceGUID` GUID
`DeviceNumber` UInt32
`Vendor` AnsiString
`Model` AnsiString
`FirmwareVersion` AnsiString
`SerialNumber` AnsiString
`DefaultValueUsed` Boolean
`BytesPerSector` UInt32
`SectorShift` UInt32
`NTStatus` HexInt32	NTSTATUS reference

Event ID 518: Zone count mismatch

Provider: Microsoft-Windows-StorDiag
Channel: Operational
Task: Class
Opcode: Completionofrequest.

Description

Zone count mismatch.

Message #

Zone count mismatch

Fields #

Name	Description
`DeviceGUID` GUID
`DeviceNumber` UInt32
`Vendor` AnsiString
`Model` AnsiString
`FirmwareVersion` AnsiString
`SerialNumber` AnsiString
`ActualZoneCount` UInt32
`DeviceZoneCount` UInt32
`ZoneGroupCount` UInt32
`BytesPerSector` UInt32

Event ID 519: Retrieve zone information failed

Provider: Microsoft-Windows-StorDiag
Channel: Operational
Task: Class
Opcode: Completionofrequest.

Description

Retrieve zone information failed.

Message #

Retrieve zone information failed

Fields #

Name	Description
`DeviceGUID` GUID
`DeviceNumber` UInt32
`Vendor` AnsiString
`Model` AnsiString
`FirmwareVersion` AnsiString
`SerialNumber` AnsiString
`NTStatus` HexInt32	NTSTATUS reference
`BytesPerSector` UInt32

Event ID 520: Query Command Duration Limit support and its Mode Page

Provider: Microsoft-Windows-StorDiag
Channel: Operational
Task: Class
Opcode: Completionofrequest.

Description

Query Command Duration Limit support and its Mode Page.

Message #

Query Command Duration Limit support and its Mode Page

Fields #

Name	Description
`DeviceGUID` GUID
`DeviceNumber` UInt32
`Vendor` AnsiString
`Model` AnsiString
`FirmwareVersion` AnsiString
`SerialNumber` AnsiString
`NTStatus` HexInt32	NTSTATUS reference
`CommandOpCode` UInt8
`T2CDLPage` UInt8
`CDLPage` UInt8

Event ID 521: Query Command Duration Limit Mode Page failed

Provider: Microsoft-Windows-StorDiag
Channel: Operational
Task: Class
Opcode: Completionofrequest.

Description

Query Command Duration Limit Mode Page failed.

Message #

Query Command Duration Limit Mode Page failed

Fields #

Name	Description
`DeviceGUID` GUID
`DeviceNumber` UInt32
`Vendor` AnsiString
`Model` AnsiString
`FirmwareVersion` AnsiString
`SerialNumber` AnsiString
`NTStatus` HexInt32	NTSTATUS reference
`CDLSupported` Boolean
`PageSavable` Boolean
`T2CDLPage` UInt8
`CDLPage` UInt8

Event ID 522: Set Command Duration Limit Mode Page failed

Provider: Microsoft-Windows-StorDiag
Channel: Operational
Task: Class
Opcode: Completionofrequest.

Description

Set Command Duration Limit Mode Page failed.

Message #

Set Command Duration Limit Mode Page failed

Fields #

Name	Description
`DeviceGUID` GUID
`DeviceNumber` UInt32
`Vendor` AnsiString
`Model` AnsiString
`FirmwareVersion` AnsiString
`SerialNumber` AnsiString
`NTStatus` HexInt32	NTSTATUS reference
`CDLSupported` Boolean
`PageSavable` Boolean
`T2CDLPage` UInt8
`CDLPage` UInt8

Event ID 523: Read capacity failed

Provider: Microsoft-Windows-StorDiag
Channel: Operational
Task: Class
Opcode: Completionofrequest.

Description

Read capacity failed.

Message #

Read capacity failed

Fields #

Name	Description
`DeviceGUID` GUID
`DeviceNumber` UInt32
`Vendor` AnsiString
`Model` AnsiString
`FirmwareVersion` AnsiString
`SerialNumber` AnsiString
`DefaultValueUsed` Boolean
`BytesPerSector` UInt32
`SectorShift` UInt32
`NTStatus` HexInt32	NTSTATUS reference

Provenance

Where this provider's schema came from, and which Windows build it was observed on. Windows can change a provider's event schema between builds, so use this to judge whether it matches the build you collect from.

ETW provider GUID {F5D05B38-80A6-4653-825D-C414E4AB3C68}

Defined in classpnp.sys, the binary that emits these events.

Observed on:

WS2022-20348.4893, sample captured from a live trace, binary version 10.0.20348.4163, captured 2026-06-02
Win11-26200.6584, sample captured from a live trace, binary version 10.0.26100.5074, captured 2026-06-02
WS2022-20348.4893, schema read from the registered manifest, binary version 10.0.20348.4163, captured 2026-06-02
Win11-26200.6584, schema read from the registered manifest, binary version 10.0.26100.5074, captured 2026-06-02

`j` / `k`	Scroll down / up
`d` / `u`	Half-page down / up
`gg` / `G`	Top / bottom
`h` / `l`	History back / forward
`f`	Follow link (`Shift` = new tab)
`/`	Focus search
`?`	Toggle this help
`↑` / `↓`	Navigate search results
`Enter`	Open highlighted result
`Esc`	Close results / dialog

`type:`	`events` / `rules` / `providers`
`vendor:`	`sigma` / `elastic` / `splunk` / `kusto` / `chronicle` (vendor name alone also works: `sigma:`, `kql:`, `secops:`…)
`tactic:`	TA-id, slug, or name: `credential_access`, `TA0006`
`technique:`	technique or sub-technique ID: `T1003`, `T1003.001` (alias `tech:`)
`severity:`	`critical` / `high` / `medium` / `low` / `informational` (alias `sev:`)
`risk_score`	Numeric comparison on the Elastic risk score (0 to 100): `risk_score>50`, `risk_score<=20`, `risk_score=99` (alias `risk`; Elastic rules only)
`stages:`	Rules with exactly N pipeline stages
`correlation:`	`single_event` / `sequence` / `alternatives` / `alternatives_cross_log` / `all_required` / `correlated`
`with:`	Co-occurrence event-id; stacks (`with:4624 with:4769`) to require all, while a comma list in one occurrence (`with:4624,4769`) is an either-or group. Implies multi-event
`like:`	Structural neighbors of a rule slug (equivalents + subsumption stricter / broader): `like:comsvcs_lsass_memory_dump-splunk-sysmon`
`groupby:`	Entity-grouping substring match against `group_by_keys`: `groupby:user`, `groupby:host`
`uses:`	Rules whose predicate tree touches the field (any kind, any value): `uses:CommandLine`
`excludes:`	Rules with top-level `not()` clauses on the field (FP whitelists): `excludes:ParentImage`
`field:` / `value:`	Predicate search; narrows rule cards to those with a matching leaf and drives the indicator tier. Unquoted = substring, wildcards allowed (`value:mimikatz`)
`indicator:`	Shorthand for `field:F value:V`: `indicator:Image=*\powershell.exe`
`kind:`	Filter by predicate kind. Narrows rule cards to those carrying a matching predicate leaf (`vendor:elastic kind:cidr_match`) and drives the indicator tier: `contains` / `starts_with` / `ends_with` / `regex` / `cidr` / `eq` / `in` … (operator aliases `op:`/`match:`)
`has:` / `no:`	`sample`, `field`, `notes`, `refs`, `trace`, `thirdparty`, `rule`, `pattern`, `timewindow`, `threshold`, `newterms`, `sigma`/`elastic`/`splunk`/`kusto`/`chronicle`
`-op:val`	Exclude matches; works on most operators but not `type:`/`like:`/`has:`/`no:` (use `no:<flag>` to exclude a rule flag): `tactic:execution -vendor:splunk`. Standalone `-kind:`/`-field:`/`-value:` drop every rule carrying a matching predicate leaf (`type:rules -kind:is_null`)
`field:"…"` / `value:"…"`	Quoted value = anchored exact match (also allows spaces): `value:"net user"`
`a,b`	Comma = OR inside one operator (`vendor:sigma,elastic`, `severity:high,critical`); repeating a facet merges the same way. `field:`/`value:` never split (literal commas)
`vendors:` / `stage:`	Singular and plural spellings fold to the canonical operator and value: `tactics:` = `tactic:`, `type:event` = `type:events`, `correlation:sequences` = `correlation:sequence`, `has:thresholds` = `has:threshold`
`"quoted phrase"`	Exact-match a multi-word phrase (free text)