{
  "slug": "scsi-architecture-model",
  "term": "SCSI Architecture Model",
  "aliases": [
    "SAM"
  ],
  "definition": "The SCSI Architecture Model defines the common system framework and requirements used by other SCSI standards.",
  "note": "SAM describes the shared architecture; SPC and device-type command standards address command behavior. These are standards responsibilities, not three successive wire-protocol layers. [snia-sam] [spc4-scope]\n\nA SAM revision is not a connector or link-speed generation. T10's architecture applies across several transports whose underlying standards have different owners. [t10-responsibilities]",
  "citations": [
    {
      "id": "snia-sam",
      "title": "SNIA Dictionary: SCSI Architecture Model",
      "url": "https://www.snia.org/education/online-dictionary/term/scsi-architecture-model",
      "accessed": "2026-11-10"
    },
    {
      "id": "spc4-scope",
      "title": "INCITS 513-2015 (R2020), SPC-4 public preview: introduction p. xli and clause 1 p. 1",
      "url": "https://webstore.ansi.org/preview-pages/INCITS/preview_INCITS%2B513-2015%2B(R2020).pdf",
      "accessed": "2026-11-10"
    },
    {
      "id": "t10-responsibilities",
      "title": "T10: SCSI Standards Architecture and standards-organization responsibilities",
      "url": "https://www.t10.org/scsi-3.htm",
      "accessed": "2026-11-10"
    },
    {
      "id": "hesela-scsi",
      "title": "Hesela: SCSI command, logical-unit and transport boundaries",
      "url": "https://hesela.com/tech/scsi/",
      "accessed": "2026-11-10"
    }
  ],
  "status": "unknown",
  "advantages": [],
  "limitations": [],
  "related": [
    "scsi",
    "t10-scsi",
    "scsi-primary-commands",
    "scsi-block-commands"
  ],
  "supersedes": [],
  "supersededBy": [],
  "firstSeen": null,
  "lastSeen": null,
  "updated": "2026-11-10",
  "provenance": [
    "Foundational standards-family definition; public descriptive sources and the SPC-4 preview reviewed, not full restricted standards or device conformance."
  ]
}