BS ISO 12142:2001

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Requirements
5 Conventions
6 Capabilities of media error monitoring techniques
7 High-level techniques
  7.1 Introduction
  7.2 Functional commands
       7.2.1 Generic command description
       7.2.2 Define Media Error Recovery Procedures
              (DMERP)
       7.2.3 Read Defect Data List (RDDL)
       7.2.4 Read Media Error Data (RDMED)
       7.2.5 Read Log Data (RLD)
       7.2.6 Set Media Error Levels (SMEL)
       7.2.7 Set Verify Media Error Levels (SVMEL)
8 SCSI-2 level techniques
  8.1 Introduction
  8.2 The FORMAT UNIT command
       8.2.1 Introduction
       8.2.2 Requirements for media error monitoring
              and reporting
  8.3 The LOG SELECT command
       8.3.1 Introduction
       8.3.2 Requirements for media error monitoring
              and reporting
  8.4 The LOG SENSE command
       8.4.1 Introduction
       8.4.2 Requirements for media error monitoring
              and reporting
  8.5 The MODE SELECT command
       8.5.1 Introduction
       8.5.2 Requirements for media error monitoring
              and reporting
  8.6 The MODE SENSE command
       8.6.1 Introduction
       8.6.2 Requirements for media error monitoring
              and reporting
  8.7 The READ DEFECT DATA command
       8.7.1 Introduction
       8.7.2 Requirements for media error monitoring
              and reporting
  8.8 The READ LONG command
       8.8.1 Introduction
       8.8.2 Requirements for media error monitoring
              and reporting
  8.9 The REQUEST SENSE command
       8.9.1 Introduction
       8.9.2 Requirements for media error monitoring
              and reporting
  8.10 The VERIFY command
       8.10.1 Introduction
       8.10.2 Requirements for media error monitoring
              and reporting
  8.11 The WRITE AND VERIFY command
       8.11.1 Introduction
       8.11.2 Requirements for media error monitoring
              and reporting
  8.12 Parameters for optical disk devices
       8.12.1 Media error monitoring and reporting
              associated parameters
       8.12.2 Mode parameters
       8.12.3 Log parameters
Annex A (informative) - Recommendations on Verify Media
                        Error Levels for early warning
                        and Media Error Levels for sector
                        retirement
             A.1 - Introduction
             A.2 - Sector retirement guidelines
                        according to ISO/IEC 10089
             A.3 - Sector retirement guidelines
                        according to ISO/IEC 13403
Annex B (informative) - Guidelines for use of media error
                        monitoring and reporting techniques
                        for the verification of stored data
                        on optical digital data disks
             B.1 - Introduction
             B.2 - Media error monitoring tools provided
                        by this International Standard
                B.2.1 - Introduction
                B.2.2 - Interpreting media error reports
             B.3 - Deciding what to test
                B.3.1 - Introduction
                B.3.2 - Sampling methods
                B.3.3 - Estimation from sampling methods
                B.3.4 - Using baseline media error parameters
             B.4 - Analysing media error reports provided
                        by optical disk subsystems or devices
                        complying to this International
                        Standard, or similar media error reports
                B.4.1 - Introduction
                B.4.2 - Automating media testing
                B.4.3 - Media error testing and log maintenance
                B.4.4 - Sample graphs of media error reports
                        specified in this International Standard
             B.5 - Using error distributions and statistical
                        models to evaluate data integrity
                B.5.1 - Introduction
                B.5.2 - Error distributions and burst lengths
                B.5.3 - The uniform random error model
                B.5.4 - Gilbert models of burst length
                        distributions
Annex C (informative) - Modified Gilbert Model
Annex D (informative) - Uniform, random error distributions
             D.1 - General description
             D.2 - Sector distribution of bytes in error
             D.3 - Maximum number of bytes in error per
                        codeword per sector
             D.4 - Distribution of the number of bytes
                        in error per codeword per sector
                D.4.1 - General
                D.4.2 - Maximum number of bytes in error per
                        codeword per sector, first approach
                D.4.3 - Maximum number of bytes in error per
                        codeword per sector, second approach
Bibliography

Specifies two techniques for media error monitoring and reporting for the verification of data stored on optical digital data disks, i.e. high-level and SCSI-2 level. Two media error monitoring and reporting levels are: - system level, which uses a set of functional commands that can be used by the operating system, application software, and remote users; - optical disk device level, which uses a set of SCSI-2 commands that can be used by the device driver or a device application programme.