LBA (Logical Block Addressing)
E762364
LBA (Logical Block Addressing) is a method of specifying the location of data blocks on storage devices using a linear block number scheme instead of traditional cylinder-head-sector (CHS) addressing.
Observed surface forms (1)
| Surface form | Occurrences |
|---|---|
| LBA | 0 |
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
data addressing scheme
ⓘ
logical block addressing method ⓘ |
| addressingModel | linear block number scheme ⓘ |
| addressingType | logical addressing ⓘ |
| advantageOverCHS |
better scalability with disk size
ⓘ
independence from physical geometry ⓘ simplified addressing ⓘ |
| blockSizeTypical |
4096 bytes
ⓘ
512 bytes ⓘ |
| compatibleWith | modern large-capacity disks ⓘ |
| definedAtInterfaceLevel | host-to-disk interface ⓘ |
| enables | support for large disk capacities ⓘ |
| fullName | Logical Block Addressing NERFINISHED ⓘ |
| independentOf |
disk cylinder count
ⓘ
disk head count ⓘ disk sector-per-track count ⓘ |
| mapsTo | physical sectors on disk ⓘ |
| relatedConcept |
CHS addressing
ⓘ
GPT NERFINISHED ⓘ LBA28 ⓘ LBA48 ⓘ MBR ⓘ cylinder ⓘ partition table ⓘ sector ⓘ track ⓘ |
| replaces |
CHS addressing
ⓘ
cylinder-head-sector addressing ⓘ |
| unitOfAddressing | block ⓘ |
| usedBy |
device drivers
ⓘ
disk controllers ⓘ file systems ⓘ operating systems ⓘ |
| usedFor | specifying locations of data blocks on storage devices ⓘ |
| usedIn |
BIOS disk services
ⓘ
GPT partitioning ⓘ MBR partitioning ⓘ NVMe storage devices ⓘ RAID controllers ⓘ SATA storage devices ⓘ SCSI storage devices NERFINISHED ⓘ UEFI firmware NERFINISHED ⓘ flash memory devices ⓘ hard disk drives ⓘ optical drives ⓘ partition tables ⓘ solid-state drives ⓘ |
| usedSince | 1990s ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.