ISO/IEC 14776-341:2000 PDF

Information technology — Small Computer System Interface-3 (SCSI-3) — Part 341: Controller Commands (SCC)

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Title (English):

ISO/IEC 14776-341:2000

Information technology — Small Computer System Interface-3 (SCSI-3) — Part 341: Controller Commands (SCC)

Document status:: Active
Format:: Electronic (PDF)
Number of pages:: 134
Publication date:: June 15, 2000
Edition:: ISO/IEC IS 14776 edition 1 version 1
ICS:: 35.200

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Description (English):

This International Standard defines the command set extensions for SCSI-3 storage array devices; commonly known as RAID devices. This standard is principally intended to be used in conjunction with, not as an alternate to, any of the SCSI-3 command standards and the SCSI-3 Architecture Model Standard (ISO/IEC IS 14776-411). The resulting commands facilitate the control and configuration of SCSI-3 storage arrays and thus provide a common command specification for both system integrators and suppliers of SCSI-3 storage array devices. The clause(s) of this standard pertaining to the SCSI-3 storage array device class, implemented in conjunction with the applicable clauses within any of the SCSI-3 command standards, shall specify the standard command set available for SCSI-3 storage arrays. The objectives of the SCSI-3 Controller Commands is to provide the following: a) Transfer commands unique to SCSI-3 Controller Command devices; b) Control commands to manage the operation of an SCSI-3 Controller Command device; c) Optional device mapping and pass-through support.

Technical details

Technical committee: ISO/IEC JTC 1/SC 25 - Interconnection of information technology equipment
SKU: ISO/IEC 14776-341:2000

Abstract

Overview

ISO/IEC 14776-341:2000 - Information technology - SCSI-3 - Part 341: Controller Commands (SCC) - defines the command set extensions for SCSI-3 storage array devices (commonly RAID devices). Intended as an extension to the core SCSI‑3 command standards and the SCSI‑3 Architecture Model (ISO/IEC 14776‑411), this standard specifies a common set of controller commands to control, configure and manage SCSI‑3 storage arrays so system integrators and device suppliers can interoperate.

Key topics and technical requirements

SCSI‑3 controller command set (SCC): Defines transfer and control commands unique to controller-class SCSI‑3 devices, plus optional device mapping and pass‑through support.
Command families: Includes MAINTENANCE (IN/OUT), REDUNDANCY GROUP (IN/OUT), VOLUME SET (IN/OUT), SPARE (IN/OUT) and other controller-specific commands and service actions.
Storage array objects and addressing: Standardizes addressing methods (eight‑byte LUN structure, component device, logical unit, peripheral device, redundancy group, spare, volume set) and object models (component devices, peripheral devices, p_extent/ps_extent, redundancy groups, spares, volume sets).
Array operations and state management: Specifies operations such as rebuild, recalculate, regenerate and verify; defines states and exception conditions for array components.
Check-data and user-data mapping: Provides guidance on redundancy methods (XOR/P+Q, copy, none, vendor‑specific) and mapping examples (see annexes).
System layering and SACL model: Describes system layering for arrays (SACL - storage array conversion layer), protocol conversion, and examples of software/firmware placements (HBA, bridge controller).
Parameters and messaging: Includes mode parameter pages (e.g., LUN mapping), IDENTIFY message format and addressing examples in annexes.

Note: The standard includes a patent statement indicating possible patent claims related to SCC; licensing may be required.

Applications and users

Who benefits:

Storage array vendors implementing RAID controllers and firmware.
System integrators and OEMs building server/storage solutions that rely on standardized controller commands.
HBA and SAN firmware developers implementing pass‑through and mapping behavior.
Storage architects and admins who design interoperable arrays and need predictable command semantics.
Test, QA and compliance teams validating SCSI‑3 storage array behavior.

Practical uses:

Implementing controller command interfaces for RAID and complex array functions.
Enabling cross‑vendor interoperability for array management, rebuilds, spare handling and redundancy control.
Defining LUN mapping, device attachment/detachment and administrative operations using a standard command vocabulary.

Related standards

ISO/IEC 14776‑411 (SCSI‑3 Architecture Model)
Core SCSI‑3 command standards (referenced by ISO/IEC 14776‑341:2000)

Related standards

Mentioned in the description and other ISO standards

Abstract

Overview

Key topics and technical requirements

SCSI‑3 controller command set (SCC): Defines transfer and control commands unique to controller-class SCSI‑3 devices, plus optional device mapping and pass‑through support.
Command families: Includes MAINTENANCE (IN/OUT), REDUNDANCY GROUP (IN/OUT), VOLUME SET (IN/OUT), SPARE (IN/OUT) and other controller-specific commands and service actions.
Storage array objects and addressing: Standardizes addressing methods (eight‑byte LUN structure, component device, logical unit, peripheral device, redundancy group, spare, volume set) and object models (component devices, peripheral devices, p_extent/ps_extent, redundancy groups, spares, volume sets).
Array operations and state management: Specifies operations such as rebuild, recalculate, regenerate and verify; defines states and exception conditions for array components.
Check-data and user-data mapping: Provides guidance on redundancy methods (XOR/P+Q, copy, none, vendor‑specific) and mapping examples (see annexes).
System layering and SACL model: Describes system layering for arrays (SACL - storage array conversion layer), protocol conversion, and examples of software/firmware placements (HBA, bridge controller).
Parameters and messaging: Includes mode parameter pages (e.g., LUN mapping), IDENTIFY message format and addressing examples in annexes.

Note: The standard includes a patent statement indicating possible patent claims related to SCC; licensing may be required.

Applications and users

Who benefits:

Storage array vendors implementing RAID controllers and firmware.
System integrators and OEMs building server/storage solutions that rely on standardized controller commands.
HBA and SAN firmware developers implementing pass‑through and mapping behavior.
Storage architects and admins who design interoperable arrays and need predictable command semantics.
Test, QA and compliance teams validating SCSI‑3 storage array behavior.

Practical uses:

Implementing controller command interfaces for RAID and complex array functions.
Enabling cross‑vendor interoperability for array management, rebuilds, spare handling and redundancy control.
Defining LUN mapping, device attachment/detachment and administrative operations using a standard command vocabulary.

Related standards

ISO/IEC 14776‑411 (SCSI‑3 Architecture Model)
Core SCSI‑3 command standards (referenced by ISO/IEC 14776‑341:2000)

ISO/IEC 14776-341:2000 PDF

Technical details

Abstract

Overview

Key topics and technical requirements

Applications and users

Related standards

Related standards

Abstract

Overview

Key topics and technical requirements

Applications and users

Related standards

Related standards

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