# Hesela storage glossary

Agent-first lexicon of storage technologies, interfaces, and media.
English definitions; machine-readable JSON is the source of truth.

## Site
- Canonical URL: https://hesela.dev
- Human home: https://hesela.dev/
- Term pages: https://hesela.dev/terms/<slug>

## Data (fetch JSON)
- Index (schemaVersion 1): https://hesela.dev/data/index.json
- Timeline: https://hesela.dev/data/timeline.json
- Term record: https://hesela.dev/data/terms/<slug>.json

## Corpus (238 terms)
Slugs (kebab-case entity IDs):
- 3d-nand
- 3d-xpoint
- 4kn-native
- 512e
- advanced-format
- afr
- ahci
- air-gap-backup
- all-flash-array
- alua
- areal-density
- ata-smart
- bad-block-management
- barium-ferrite-tape
- bit-error-rate
- bit-patterned-media
- block-storage
- blu-ray-archive
- bubble-memory
- byte-addressable-storage
- cfexpress
- channel-nand
- charge-trap-flash
- cmr
- cold-archive
- computational-storage
- consumer-ssd
- copy-on-write
- count-key-data
- cxl-memory
- dat-cartridge
- data-retention
- data-sanitization
- deduplication
- degaussing
- device-managed-smr
- die-stacking
- direct-io
- discard
- disk-shelf
- dlt
- dram-cache-ssd
- drum-memory
- dual-actuator
- dual-port
- dwpd
- e1-s
- edsff
- end-to-end-data-protection
- enterprise-ssd
- erasure-coding
- escon
- esdi
- fcoe
- fibre-channel
- ficon
- file-storage
- fixed-block-architecture
- flash-controller
- flash-module
- floating-gate
- floppy-disk
- fluid-dynamic-bearing
- ftl
- garbage-collection
- garbage-collection-host
- garbage-collection-smr
- giant-magnetoresistive-head
- glass-storage
- glass-substrate
- hamr
- hba
- hdd
- helical-scan
- helium-hdd
- helium-leak-port
- hm-smr
- hmb
- holographic-storage
- host-managed-band
- hot-storage
- hot-warm-cold
- hybrid-flash-array
- ide
- immutability-storage
- initiator-target
- iops
- iscsi
- jbod
- jedec-solid-state
- key-value-ssd
- latency-storage
- ldpc
- logical-unit-number
- longitudinal-recording
- ltfs
- lto
- lvm
- m-disc
- m2
- magneto-optical
- mainframe-dasd
- mamr
- memristor
- metal-particle-tape
- mirroring
- mission-critical-hdd
- mlc
- mlc-ssd
- mtbf
- multipath-io
- multipath-nvme
- namespace-nvme
- nand-flash
- nas
- nearline-hdd
- nearline-sas
- nfs-storage
- nor-flash
- nvdimm-n
- nvm-subsystem
- nvme
- nvme-backplane
- nvme-base-spec
- nvme-fdp
- nvme-mi
- nvme-of
- nvme-smart-log
- object-storage
- open-channel-ssd
- optane
- optical-archival
- optical-jukebox
- over-provisioning
- parity-raid
- partition-alignment
- pata
- pcie-gen4
- pcie-gen5
- pcie-lanes
- pcie-retimer
- pcie-storage
- perpendicular-tape
- persistent-memory
- phase-change-memory
- planar-nand
- plc
- pmr
- power-loss-protection
- prml-encoding
- program-erase-cycle
- protection-information
- qlc
- qlc-ssd
- queue-depth
- racetrack-memory
- raid
- raid-10
- raid-5
- raid-6
- ramac
- rdma-storage
- read-disturb
- read-modify-write
- reed-solomon-code
- reflink
- robotic-tape
- rotational-latency
- rotational-media
- rotational-vibration
- run-length-limited
- san
- sanitize-nvme
- sas
- sas-expander
- sata
- sata-express
- scsi
- scsi-unmap
- sd-express
- secure-erase
- seek-time
- self-encrypting-drive
- shingled-band
- slc
- slc-cache
- slc-ssd
- smart
- smb-protocol
- smr
- snapshot
- snia-storage
- solid-state-media
- ssd
- sshd
- st-412
- st-506
- storage-class-memory
- storage-virtualization
- striping
- superparamagnetic-limit
- t10-scsi
- tape
- tape-encryption
- tape-library
- tbw
- tcg-opal
- thermal-throttling-ssd
- thin-provisioning
- throughput-storage
- thunderbolt-storage
- tiled-media
- tlc
- tlc-ssd
- trim
- tunnel-magnetoresistive-head
- u2
- uasp
- udo
- unmap
- usb-mass-storage
- v-nand
- volume-manager
- warm-storage
- wear-leveling
- winchester-architecture
- worm-storage
- write-amplification
- write-back-cache
- write-combining
- write-once-media
- write-through-cache
- zac
- zbc
- zip-drive
- zns
- zoned-block-device
- zoned-namespace

## Term JSON schema (per file)
Fields: slug, term, aliases, definition, note, status, advantages, limitations,
related, supersedes, supersededBy, firstSeen, lastSeen, citations.
status: shipping | limited | eol | cancelled | research | unknown

## Usage
1. GET /data/index.json for slug list and schemaVersion.
2. GET /data/terms/<slug>.json for each term.
3. GET /data/timeline.json for ordered historical events.
4. Optional HTML gloss: GET /terms/<slug>.