hesela.devStorage glossary
Lexicographic entries for magnetic, flash, tape, and interface technologies. Definitions live in JSON; this site is a thin human view.
Terms
- 3D NAND
- 3D XPoint
- 4Kn native sectors
- 512e emulation
- Advanced Format (4K)
- AHCI
- Air-gapped backup
- All-flash array
- ALUA
- Annualized failure rate (AFR)
- Areal density
- ATA SMART
- Bad block management
- Barium ferrite tape
- Bit error rate
- Bit-patterned media
- Block storage
- Blu-ray data archive
- Bubble memory
- Byte-addressable storage
- CFexpress
- Charge trap flash
- CKD DASD
- Cold archive tier
- Computational storage drive
- Consumer SSD
- Conventional magnetic recording (CMR)
- Copy-on-write (storage)
- CXL memory expansion
- DAT cartridge
- Data deduplication
- Data sanitization
- Degaussing
- Device-managed SMR (DM-SMR)
- Direct I/O
- DISCARD / UNMAP
- Disk shelf
- DLT
- Drum memory
- Dual-actuator HDD
- Dual-port drive
- 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 data retention
- Flash module
- Flash translation layer (FTL)
- Floating-gate flash
- Floppy disk
- Fluid dynamic bearing
- Garbage collection (flash)
- Glass platter substrate
- Glass storage
- GMR read head
- Hard disk drive (HDD)
- Heat-assisted magnetic recording (HAMR)
- Helical scan recording
- Helium leak port
- Helium-filled HDD
- Holographic data storage
- Host bus adapter (HBA)
- Host memory buffer (HMB)
- Host-managed band (SMR)
- Host-managed SMR (HM-SMR)
- Host-side flash GC
- Hot storage tier
- Hot, warm, and cold storage tiers
- Hybrid flash array
- IBM RAMAC
- IDE / ATA
- INCITS T10 SCSI
- Intel Optane
- IOPS
- iSCSI
- JBOD
- JEDEC SSD standards
- Key-value SSD
- LDPC (NAND ECC)
- Logical unit (LUN)
- Longitudinal magnetic recording
- LTFS
- LTO (Linear Tape-Open)
- LVM
- M-DISC
- M.2
- Magnetic tape storage
- Magneto-optical disc
- Mainframe DASD
- Memristor storage
- Metal particle tape
- Microwave-assisted magnetic recording (MAMR)
- Mirroring (storage)
- Mission-critical HDD
- MLC SSD
- MTBF
- Multi-level cell (MLC)
- Multipath I/O
- NAND channel
- NAND die stacking
- NAND flash
- NAS
- Nearline HDD
- Nearline SAS
- NFS
- NOR flash
- NVDIMM-N
- NVM subsystem
- NVMe
- NVMe backplane
- NVMe base specification
- NVMe FDP
- NVMe multipath
- NVMe namespace
- NVMe over Fabrics
- NVMe sanitize
- NVMe SMART log
- NVMe-MI
- Object storage
- Open-channel SSD
- Optical archival storage
- Optical jukebox
- Over-provisioning
- Parity RAID
- Partition alignment
- PATA
- PCIe 4.0 storage
- PCIe 5.0 storage
- PCIe lanes (storage)
- PCIe retimer
- PCIe storage attachment
- Perpendicular magnetic recording (PMR)
- Perpendicular magnetic tape
- Persistent memory
- Phase-change memory (storage)
- Planar NAND
- PLC (penta-level cell)
- Power loss protection
- PRML detection
- Program/erase cycle
- Protection information (PI)
- QLC SSD
- Quad-level cell (QLC)
- Queue depth
- Racetrack memory
- RAID
- RAID 10
- RAID 5
- RAID 6
- RDMA storage networking
- Read disturb
- Read-modify-write
- Reed–Solomon codes (storage)
- Reflink
- Robotic tape loader
- Rotational latency
- Rotational media
- Rotational vibration (RV)
- Run-length limited (RLL) encoding
- S.M.A.R.T.
- SAN
- SAS expander
- SATA Express
- SCSI
- SCSI initiator and target
- SCSI UNMAP
- SD Express
- Secure erase
- Seek time
- Self-encrypting drive (SED)
- Serial ATA (SATA)
- Serial Attached SCSI (SAS)
- Shingled band
- Shingled magnetic recording (SMR)
- Single-level cell (SLC)
- SLC cache
- SLC SSD
- SMB file sharing
- SMR garbage collection
- SNIA
- Solid-state drive (SSD)
- Solid-state media
- SSD controller
- SSD DRAM cache
- SSD thermal throttling
- SSHD (hybrid drive)
- ST-412
- ST-506 interface
- Storage immutability
- Storage latency
- Storage snapshot
- Storage throughput
- Storage virtualization
- Storage-class memory (SCM)
- Striping (storage)
- Superparamagnetic limit
- Tape encryption
- Tape library
- TBW
- TCG Opal
- Thin provisioning
- Thunderbolt storage
- Tiled magnetic recording
- TLC SSD
- TMR read head
- TRIM
- Triple-level cell (TLC)
- U.2 / U.3
- UASP
- UDO
- UNMAP
- USB mass storage
- V-NAND
- Volume manager
- Warm storage tier
- Wear leveling
- Winchester disk architecture
- WORM storage
- Write amplification
- Write combining
- Write-back cache
- Write-once media
- Write-through cache
- ZAC
- ZBC
- Zip drive
- Zoned block device (ZBD)
- Zoned namespace
- Zoned namespaces (ZNS)