scsi-architecture-model · unknown · also SAM

SCSI Architecture Model

The SCSI Architecture Model defines the common system framework and requirements used by other SCSI standards.

SAM describes the shared architecture; SPC and device-type command standards address command behavior. These are standards responsibilities, not three successive wire-protocol layers. [1] [2]

A SAM revision is not a connector or link-speed generation. T10's architecture applies across several transports whose underlying standards have different owners. [3]

Relations

related
SCSI, INCITS T10 SCSI, SCSI Primary Commands, SCSI Block Commands

Citations

  1. SNIA Dictionary: SCSI Architecture Model (accessed 2026-11-10)
  2. INCITS 513-2015 (R2020), SPC-4 public preview: introduction p. xli and clause 1 p. 1 (accessed 2026-11-10)
  3. T10: SCSI Standards Architecture and standards-organization responsibilities (accessed 2026-11-10)

Further reading

  1. Hesela: SCSI command, logical-unit and transport boundaries (accessed 2026-11-10)
Sources & caveats
  • Foundational standards-family definition; public descriptive sources and the SPC-4 preview reviewed, not full restricted standards or device conformance.

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Hesela team. SCSI Architecture Model. Hesela. 2026-11-10. https://hesela.dev/terms/scsi-architecture-model/