Tiêu chuẩn quốc tế

• Số hiệu / Standard Number: ANSI INCITS 458:2011
• Năm ban hành / Publication date: 2011
• Tình trạng / Status: A - Còn hiệu lực
• Tên tiếng Anh / Title in English: Information Technology – SCSI Object-Based Storage Device Commands - 2 (OSD-2)
• Số trang / Page: 346

Phạm vi áp dụng / Scope of standard

This standard defines the command set extensions to control
operation of Object-Based Storage devices. The clause(s) of this
standard pertaining to the SCSI Object-Based Storage Device class,
implemented in conjunction with the applicable clauses of the
ISO/IEC 14776-453 SCSI Primary Commands -4 (SPC-4), specify the
standard command set for SCSI Object-Based Storage devices.

The objective of this standard is to provide the following:

a) Permit an application client to communicate with a logical
unit that declares itself to be an Object-Based Storage device in
the PERIPHERAL DEVICE TYPE field of the INQUIRY command response
data over a SCSI service delivery subsystem;

b) Enable construction of a shared storage processor cluster
with equipment and software from many different vendors;

c) Define commands unique to the type of SCSI Object-Based
Storage devices; and

d) Define commands to manage the operation of SCSI Object-Based
Storage devices.

The set of SCSI standards specifies the interfaces, functions,
and operations necessary to ensure interoperability between
conforming SCSI implementations. This standard is a functional
description. Conforming implementations may employ any design
technique that does not violate interoperability.

The term SCSI is used to refer to the family of standards
described in this clause.

The following features from previous standards have been made
obsolete in this standard:

a) The ROOT bit in the LIST command parameter data;

b) The COLTN bit in the LIST COLLECTION command parameter
data;

c) All discussion of linked commands; and

d) Since the CDB format was changed globally, all service action
coded value assignments from OSD were made obsolete in this
standard and new coded values were assigned.