operations-drive-health

Hard drive lifecycle enums: physical state, SMART status, wipe status, disposition, and tag derivation

Tier	operations
Role	unclassified (baselined)
Path	`crates/operations/drive-health`
Edition	2021
Targets	operations_drive_health
Public items	30 across 0 modules
Tests	83

What it is for

Hard Drive Health & Lifecycle Library crates

Strongly-typed enums for drive physical state, SMART diagnostic status, wipe status/method, and commercial disposition. Shared between rust-inventory-ai (inventory management) and bootusb (drive test station).

This crate contains only models and pure functions — no I/O, no database access.

Capabilities

`crate root`

Hard Drive Health & Lifecycle Library crates

Item
`fn classify_media(smart : & SmartSummary) -> MediaVerdict`
`fn derive_tags(disposition : & Disposition, wipe : & WipeStatus, manufacturer : & str,) -> Vec <String>`

`Disposition`

Hard Drive Health & Lifecycle Library crates

Item
`pub enum Disposition`
`Disposition :: fn fmt(& self, f : & mut fmt::Formatter <'_>) -> fmt::Result`
`fn derive_disposition(physical : & PhysicalState, smart : & SmartStatus, wipe : & WipeStatus,) -> Disposition`
`fn derive_disposition_from_verdict(verdict : & MediaVerdict, wipe : & WipeStatus) -> Disposition`

`DriveFormFactor`

Hard Drive Health & Lifecycle Library crates

Item
`pub enum DriveFormFactor`

`MediaVerdict`

Hard Drive Health & Lifecycle Library crates

Item
`pub enum MediaVerdict`
`MediaVerdict :: fn fmt(& self, f : & mut fmt::Formatter <'_>) -> fmt::Result`

`ParseDriveEnumError`

Hard Drive Health & Lifecycle Library crates

Item
`pub struct ParseDriveEnumError`
`ParseDriveEnumError :: fn fmt(& self, f : & mut fmt::Formatter <'_>) -> fmt::Result`

`PhysicalState`

Hard Drive Health & Lifecycle Library crates

Item
`pub enum PhysicalState`
`PhysicalState :: fn fmt(& self, f : & mut fmt::Formatter <'_>) -> fmt::Result`
`PhysicalState :: fn from_str(s : & str) -> Result <Self, Self::Err>`

`ScsiFields`

Hard Drive Health & Lifecycle Library crates

Item
`pub struct ScsiFields`

`SmartStatus`

Hard Drive Health & Lifecycle Library crates

Item
`pub enum SmartStatus`
`SmartStatus :: fn fmt(& self, f : & mut fmt::Formatter <'_>) -> fmt::Result`
`SmartStatus :: fn from_str(s : & str) -> Result <Self, Self::Err>`

`SmartSummary`

Hard Drive Health & Lifecycle Library crates

Item
`pub struct SmartSummary`
`fn extract_smart_summary(snapshot : & serde_json::Value) -> SmartSummary`
`fn parse_scsi_smartctl_text(stdout : & str) -> SmartSummary`

`Transport`

Hard Drive Health & Lifecycle Library crates

Item
`pub enum Transport`

`TransportStatus`

Hard Drive Health & Lifecycle Library crates

Item
`pub enum TransportStatus`
`TransportStatus :: fn fmt(& self, f : & mut fmt::Formatter <'_>) -> fmt::Result`

`WipeMethod`

Hard Drive Health & Lifecycle Library crates

Item
`pub enum WipeMethod`
`WipeMethod :: fn fmt(& self, f : & mut fmt::Formatter <'_>) -> fmt::Result`
`WipeMethod :: fn from_str(s : & str) -> Result <Self, Self::Err>`

`WipeStatus`

Hard Drive Health & Lifecycle Library crates

Item
`pub enum WipeStatus`
`WipeStatus :: fn fmt(& self, f : & mut fmt::Formatter <'_>) -> fmt::Result`
`WipeStatus :: fn from_str(s : & str) -> Result <Self, Self::Err>`

How to use it

No examples/ target and no doctest in this crate's rustdoc. The tests listed under Verification are the closest executable usage.

Module structure

No public modules: the crate root is its whole surface.

Public surface

`crate root`

Item	What it is
`pub enum PhysicalState`	Observable physical behavior of a hard drive
`PhysicalState :: fn fmt(& self, f : & mut fmt::Formatter <'_>) -> fmt::Result`	—
`PhysicalState :: fn from_str(s : & str) -> Result <Self, Self::Err>`	—
`pub enum SmartStatus`	SMART diagnostic test overall result
`SmartStatus :: fn fmt(& self, f : & mut fmt::Formatter <'_>) -> fmt::Result`	—
`SmartStatus :: fn from_str(s : & str) -> Result <Self, Self::Err>`	—
`pub enum WipeStatus`	—
`WipeStatus :: fn fmt(& self, f : & mut fmt::Formatter <'_>) -> fmt::Result`	—
`WipeStatus :: fn from_str(s : & str) -> Result <Self, Self::Err>`	—
`pub enum WipeMethod`	—
`WipeMethod :: fn fmt(& self, f : & mut fmt::Formatter <'_>) -> fmt::Result`	—
`WipeMethod :: fn from_str(s : & str) -> Result <Self, Self::Err>`	—
`pub enum Transport`	Drive transport / protocol family
`pub struct ScsiFields`	SCSI log-page attributes used for media health classification
`pub struct SmartSummary`	Subset of SMART attributes used for media health classification
`pub enum DriveFormFactor`	Drive form factor — affects read speed thresholds.
`pub enum MediaVerdict`	Graded media health verdict derived from SMART attributes.
`MediaVerdict :: fn fmt(& self, f : & mut fmt::Formatter <'_>) -> fmt::Result`	—
`fn classify_media(smart : & SmartSummary) -> MediaVerdict`	Classify media health from SMART attributes and performance data
`pub enum TransportStatus`	Host-side transport health, independent of media health
`TransportStatus :: fn fmt(& self, f : & mut fmt::Formatter <'_>) -> fmt::Result`	—
`pub enum Disposition`	What should happen to this drive, derived from health + wipe state.
`Disposition :: fn fmt(& self, f : & mut fmt::Formatter <'_>) -> fmt::Result`	—
`fn derive_disposition(physical : & PhysicalState, smart : & SmartStatus, wipe : & WipeStatus,) -> Disposition`	Derive the commercial disposition from observable drive state
`fn derive_tags(disposition : & Disposition, wipe : & WipeStatus, manufacturer : & str,) -> Vec <String>`	Derive inventory tags from disposition, wipe status, and manufacturer
`fn derive_disposition_from_verdict(verdict : & MediaVerdict, wipe : & WipeStatus) -> Disposition`	Derive disposition using graded SMART verdict instead of simple pass/fail
`fn extract_smart_summary(snapshot : & serde_json::Value) -> SmartSummary`	Extract a `SmartSummary` from the full smartctl JSON snapshot
`fn parse_scsi_smartctl_text(stdout : & str) -> SmartSummary`	Parse `smartctl -a -d cciss,N /dev/cciss/c0d0` text output (smartmontools 6.x) into a typed `SmartSummary` with `transport = Transport::Scsi`
`pub struct ParseDriveEnumError`	—
`ParseDriveEnumError :: fn fmt(& self, f : & mut fmt::Formatter <'_>) -> fmt::Result`	—

No pub use re-exports: every item above is declared in this crate.

Boundary

Depends on no other workspace tier.

Shares tier operations with 40 other crates: operations-approval-workflow, operations-assessments, operations-block-imaging, operations-boot-media, operations-browser-agent-worker, operations-camera-discovery, operations-camera-liveview, operations-camera-registry, … (40 total).

_What this crate deliberately does NOT own is a judgment. No committed registry records one for it, so none is stated here._

Where it sits

Tier (ontology)	`operations`
Architectural role (taxonomy)	`unclassified (baselined)`
Location	`crates/operations/drive-health`
Vocabulary in force (lexicon)	`current`

Dependencies

Runtime, from outside the workspace.

Crate	Requirement	Features	Optional	Only on
`serde`	`^1`	`derive`	no	always
`serde_json`	`^1`	—	no	always

Development, from outside the workspace.

Crate	Requirement	Features	Optional	Only on
`serde_json`	`^1`	—	no	always

Build. None.

Depended on by. 2 workspace crates.

Signal flow — what reaches this crate, and what it reaches.

flowchart LR
  n_application_drive_health["application-drive-health"] -->|uses| SELF
  n_operations_host_inventory["operations-host-inventory"] -->|uses| SELF
  SELF["operations-drive-health"]
  classDef self fill:#1f883d,stroke:#1f883d,color:#fff;
  class SELF self;

Feature flags

No Cargo features are defined: every capability is unconditional, so no consumer can receive a half-wired crate.

Targets

Kind	Name	Source
lib	`operations_drive_health`	`src/lib.rs`

Error model

Error type	Named by
`ParseDriveEnumError`	declared, no public signature returns it

Operational characteristics

Property	Evidence
async public surface	none detected
async runtime	none detected
database access	none detected
network I/O	none detected
unsafe code	none detected
environment variables	none detected

No unsafe block, unsafe fn, unsafe impl or unsafe trait was found by the parser anywhere in this crate's source.

Configuration

No environment variable is read with a literal name anywhere in this crate. A variable whose key is computed at run time cannot be listed here, and is not claimed to be absent.

2 workspace crates depend on this one: application-drive-health, operations-host-inventory.

Verification

Kind	Count
Unit tests	83
Integration tests	0
Examples	0
Doctests	0

Evidence by module. How often each public module is named by something executable.

Module	Tests	Examples	Consumers
`crate root`	18	0	4

What the tests establish, by name:

ata_classification_unchanged_after_scsi_extension — src/lib.rs
classify_160gb_35_warning_band — src/lib.rs
classify_199_does_not_escalate_alone_with_one_other — src/lib.rs
classify_250gb_25_fast — src/lib.rs
classify_2tb_35_bad_speed — src/lib.rs
classify_500gb_25_warning_band — src/lib.rs
classify_bad_health_failed — src/lib.rs
classify_bad_pending_sectors — src/lib.rs
classify_bad_self_test_failed — src/lib.rs
classify_bad_uncorrectable — src/lib.rs
classify_hd109_dying_samsung_500gb_25 — src/lib.rs
classify_hd174_old_40gb_25_normal_speed — src/lib.rs
classify_high_temp_downgrades_bad_speed_to_suspect — src/lib.rs
classify_no_speed_data_falls_through — src/lib.rs
classify_pending_overrides_clean_reallocated — src/lib.rs
classify_perfect_drive — src/lib.rs
classify_realloc_plus_high_187_escalate — src/lib.rs
classify_slow_speed_plus_high_187_escalate_to_bad — src/lib.rs
classify_slow_speed_plus_low_187_no_amplification — src/lib.rs
classify_smart_187_high_alone_is_pass_with_wear — src/lib.rs
classify_smart_187_low_is_pass_with_wear — src/lib.rs
classify_smart_188_excluded_from_classification — src/lib.rs
classify_smart_199_excluded_from_classification — src/lib.rs
classify_suspect_high_reallocated — src/lib.rs
classify_unknown_form_factor_skips_speed — src/lib.rs
classify_with_wear — src/lib.rs
classify_with_wear_at_threshold — src/lib.rs
derive_for_parts_smart_failed — src/lib.rs
derive_for_parts_smart_passed_not_wiped — src/lib.rs
derive_needs_review_reads_but_no_smart — src/lib.rs
_… 53 more_

Documentation coverage

Measure	Documented	Total
Public items with rustdoc	15	30
Public modules with a `//!` block	0	0

pie showData
    title Public items with rustdoc
    "Documented" : 15
    "No rustdoc detected" : 15

Metrics

Metric	Value
Rust source files	1
Source lines	1979
Code lines	1410
Public API items	30
Public modules	0
Tests	83
Examples	0
Cargo features	0
Direct runtime dependencies	2
Workspace reverse dependencies	2

pie showData
    title Public API by kind
    "enum" : 9
    "function" : 6
    "method" : 12
    "struct" : 3

pie showData
    title Rust source composition
    "Code" : 1410
    "Blank or comment" : 569

Generation

Rendered by tools-corpus corpus readme from repository evidence alone, renderer schema 2, lexicon current. No model, network service or database was consulted. Regenerate with tools-corpus corpus readme --write; verify with --check.

What it is for

Capabilities

crate root

Disposition

DriveFormFactor

MediaVerdict

ParseDriveEnumError

PhysicalState

ScsiFields

SmartStatus

SmartSummary

Transport

TransportStatus

WipeMethod

WipeStatus

How to use it

Module structure

Public surface

Boundary

Where it sits

Dependencies

Feature flags

Targets

Error model

Operational characteristics

Configuration

Related capabilities

Verification

Documentation coverage

Metrics

Generation

`crate root`

`Disposition`

`DriveFormFactor`

`MediaVerdict`

`ParseDriveEnumError`

`PhysicalState`

`ScsiFields`

`SmartStatus`

`SmartSummary`

`Transport`

`TransportStatus`

`WipeMethod`

`WipeStatus`