Host bus adapter (HBA)

nounverified·updated Oct 6, 2026

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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.

MWEFederal Financial Institutions Examination Council (FFIEC) IT Examination Handbook Infobase, Glossary

Classifications

per-axis with provenance

Entity Type

Asset100%manual reviewI-071.physical_split

Ddorianclast reviewed —

Physical became Facility; its devices went to Asset (Dorian, 2026-10-06; cki DESIGN.md I-071)

Sensitivity

unclassified

Information Class

unclassified

Variants

3 surface forms

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

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