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NVME_ASYNC_EVENT_NOTICE_CODES enumeration (nvme.h)

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Contains values that indicate a Notice event type.

Syntax

typedef enum {
  NVME_ASYNC_NOTICE_NAMESPACE_ATTRIBUTE_CHANGED,
  NVME_ASYNC_NOTICE_FIRMWARE_ACTIVATION_STARTING,
  NVME_ASYNC_NOTICE_TELEMETRY_LOG_CHANGED,
  NVME_ASYNC_NOTICE_ASYMMETRIC_ACCESS_CHANGE,
  NVME_ASYNC_NOTICE_PREDICTABLE_LATENCY_EVENT_AGGREGATE_LOG_CHANGE,
  NVME_ASYNC_NOTICE_LBA_STATUS_INFORMATION_ALERT,
  NVME_ASYNC_NOTICE_ENDURANCE_GROUP_EVENT_AGGREGATE_LOG_CHANGE,
  NVME_ASYNC_NOTICE_ZONE_DESCRIPTOR_CHANGED
} NVME_ASYNC_EVENT_NOTICE_CODES;

Constants

 
NVME_ASYNC_NOTICE_NAMESPACE_ATTRIBUTE_CHANGED
The Identify Namespace data structure for one or more namespaces has changed.

Host software may use this event as an indication that it should read the Identify Namespace data structures for each namespace to determine what has changed.

A controller should not send this event when Namespace Utilization (NUSE) has changed, as this is a frequent event that does not require action by the host. A controller should only send this event for changes to the Format Progress Indicator (FPI) field when bits 6:0 of that field transition from a non-zero value to zero or from a zero value to a non-zero value.
NVME_ASYNC_NOTICE_FIRMWARE_ACTIVATION_STARTING
The controller is starting a firmware activation process during which command processing is paused.

Host software may use the Processing Paused (PP) field of NVME_CONTROLLER_STATUS to determine when command processing has resumed. To clear this event, the host software reads the Firmware Slot Information log page.
NVME_ASYNC_NOTICE_TELEMETRY_LOG_CHANGED
The controller has saved the controller internal state in the Telemetry Controller-Initiated log page and set the Telemetry Controller-Initiated Data Available field to 1h in that log page. To clear this event, the host issues a Get Log Page command with Retain Asynchronous Event bit cleared to ‘0’ for the Telemetry Controller-Initiated log.

Remarks

Use this enumeration to specify values in the NVME_ASYNC_EVENT_TYPE_NOTICE field of the NVME_ASYNC_EVENT_TYPES enumeration that is used in the Async Event Request Admin command.

Requirements

Requirement Value
Minimum supported client Windows 10
Header nvme.h

See also

NVME_ASYNC_EVENT_TYPES NVME_IDENTIFY_NAMESPACE_DATA NVME_FIRMWARE_SLOT_INFO_LOG NVME_ADMIN_COMMANDS