ISO IEC 14776-323-2017 PDF

Full title and description

Information technology — Small computer system interface (SCSI) — Part 323: SCSI Block commands — 3 (SBC-3). This international standard defines the model and SCSI block-command set extensions used together with the SCSI Primary Command Set (SPC-4) to support operation of SCSI direct-access block devices (for example, hard disk drives and similar block-storage devices).

Abstract

ISO/IEC 14776-323:2017 (SBC-3) specifies command definitions, device behaviour and extensions to the SCSI block command family that work in conjunction with SPC-4. It describes how SCSI direct-access block devices shall interpret and handle block-level commands, error conditions and command set extensions to ensure interoperable storage device behaviour.

General information

• Status: Current
• Publication date: 25 January 2017 (publication issued in January 2017).
• Publisher: International Organization for Standardization (ISO) and International Electrotechnical Commission (IEC), developed under ISO/IEC JTC 1/SC 25.
• ICS / categories: 35.200 (Interface and interconnection equipment)
• Edition / version: Edition 1.0 (2017)
• Number of pages: 321 (standard core text; some national publications list slightly different total page counts due to formatting).

Scope

Specifies the SCSI Block Commands — 3 (SBC-3) model and command set extensions used in conjunction with the SCSI Primary Command Set (SPC-4) to facilitate operation of SCSI direct-access block devices. The scope covers command definitions, expected device responses, conformance notes and normative references required for interoperable block-device implementations that use the SCSI architecture.

Key topics and requirements

• Definition of SBC-3 command set extensions and their semantics.
• Interaction and dependency with the SPC-4 (SCSI Primary Command Set) standard.
• Requirements for device behaviour, error reporting and command completion semantics for direct-access block devices.
• Normative and informative material to support implementation and conformance testing.
• References to related SCSI family parts and protocol layers for complete interoperability.

Typical use and users

Implemented by firmware and driver developers for storage devices and host adapters, device vendors (HDD/SSD manufacturers), system integrators, test labs and standards engineers who need to ensure correct SCSI block-command behaviour and interoperability between hosts and direct-access storage devices.

Related standards

Part of the ISO/IEC 14776 SCSI family. Relevant related standards include SPC-4 (SCSI Primary Commands), earlier SBC parts (SBC, SBC-2) and other SCSI parts such as SAS protocol layers, UAS and Zoned Block/ ZBC/ZAC families; these documents together define the full SCSI command, transport and device behaviour stack.

Keywords

SCSI, SBC-3, SCSI Block Commands, SPC-4, direct-access block device, storage device commands, command set extensions, interoperability, ISO/IEC 14776-323

FAQ

Q: What is this standard?

A: ISO/IEC 14776-323:2017 is the SCSI Block Commands — 3 (SBC-3) part of the ISO/IEC 14776 SCSI family, defining block-command extensions and expected device behaviour for SCSI direct-access block devices.

Q: What does it cover?

A: It covers the model, command definitions and extensions used with the SCSI Primary Command Set (SPC-4) to operate direct-access block storage devices, including normative requirements for command processing and device responses.

Q: Who typically uses it?

A: Firmware and storage device engineers, host-driver developers, conformance testers, system integrators and standards practitioners working with SCSI block-storage devices and host interfaces.

Q: Is it current or superseded?

A: As published in January 2017, ISO/IEC 14776-323:2017 is listed as current (with a stability date indicated in publisher records); organisations should check national/ISO catalogue entries for any later amendments or revisions when making procurement or conformance decisions.

Q: Is it part of a series?

A: Yes — it is one part of the ISO/IEC 14776 series covering SCSI functional parts (for example SBC, SBC-2, SBC-3, SPC, SAS protocol layers, Zoned Block Commands, etc.).

Q: What are the key keywords?

A: SCSI, SBC-3, block commands, SPC-4, direct-access device, storage commands, ISO/IEC 14776