home/glossary/Host bus adapter (HBA)

Host bus adapter (HBA)

nounid 2734·updated May 9, 2026
candidate

A host bus adapter provides I/O processing and physical connectivity between a server and storage. As the only part of a storage area network that resides in a server, HBAs also provide a critical link between the storage area network and the operating system and application software.

MWE

Classifications

Entity Type

Physical92%llm-generatedllm:claude-haiku-4-5

Sensitivity

unclassified

Information Class

unclassified

Variants

plural
Host bus adapter (HBA)S
possessive
Host bus adapter (HBA)'s
pluralpossessive
Host bus adapter (HBA)S'

Framework definitions

Federal Financial Institutions Examination Council (FFIEC) IT Examination Handbook Infobase, Glossary1 senseview framework →
§1
A host bus adapter provides I/O processing and physical connectivity between a server and storage. As the only part of a storage area network that resides in a server, HBAs also provide a critical link between the storage area network and the operating system and application software.

Outgoing relationships

No outgoing triples
This term is not the subject of any RDF-style relationship yet.

Incoming relationships

No incoming triples
No other term currently asserts a relationship to this one.