Struct SmartDevice 

pub struct SmartDevice {

    pub device: String,
    pub protocol: String,
    pub model: String,
    pub passed: Option<bool>,
    pub temperature_c: Option<f32>,
    pub power_on_hours: Option<u64>,
    pub percentage_used: Option<u32>,
    pub available_spare_percent: Option<u32>,
    pub available_spare_threshold_percent: Option<u32>,
    pub critical_warning: Option<u32>,
    pub media_errors: Option<u64>,
    pub reallocated_sectors: Option<u64>,
    pub pending_sectors: Option<u64>,
    pub offline_uncorrectable: Option<u64>,
    pub data_written_bytes: Option<u64>,
    pub collected_at_ms: Option<u64>,
    pub error: Option<String>,
}

SMART health of one drive, parsed from smartctl -j -a output.

Fields a drive or protocol does not report are None (NVMe drives have no sector reallocation counters, ATA drives no “percentage used”).

Fields

device: String

Kernel device name ("nvme0", "sda"). See device_matches_disk.

protocol: String

Protocol reported by smartctl ("NVMe", "ATA", "SCSI").

model: String

Drive model.

passed: Option<bool>

Overall health self-assessment; None if smartctl could not tell.

temperature_c: Option<f32>

Current drive temperature.

power_on_hours: Option<u64>

Accumulated power-on time.

percentage_used: Option<u32>

NVMe wear estimate (may exceed 100).

available_spare_percent: Option<u32>

NVMe spare capacity left.

available_spare_threshold_percent: Option<u32>

NVMe spare threshold below which the drive reports a warning.

critical_warning: Option<u32>

NVMe critical warning bit field (0 when healthy).

media_errors: Option<u64>

NVMe unrecovered data integrity errors.

reallocated_sectors: Option<u64>

ATA attribute 5 (Reallocated_Sector_Ct), raw value.

pending_sectors: Option<u64>

ATA attribute 197 (Current_Pending_Sector), raw value.

offline_uncorrectable: Option<u64>

ATA attribute 198 (Offline_Uncorrectable), raw value.

data_written_bytes: Option<u64>

Total host writes, where the drive reports them.

collected_at_ms: Option<u64>

When smartctl ran, in milliseconds since the Unix epoch. Lets front-ends flag stale results (e.g. the timer stopped running).

error: Option<String>

Error reported by smartctl (e.g. the device could not be opened).

Implementations

impl SmartDevice

pub fn needs_attention(&self) -> bool

Returns true if anything in the SMART data calls for attention.

Trait Implementations

impl Clone for SmartDevice

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for SmartDevice

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for SmartDevice

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for SmartDevice

where SmartDevice: Default,

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for SmartDevice

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.