Removable Media Drive Identifier for Malfunction Diagnosis

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Solution Overview

Problem

Existing electronic systems lack effective mechanisms to diagnose malfunctions in removable storage media, which can be caused by either the media itself or the drive accessing it, making it difficult to identify the source of issues.

Innovation Solution

Incorporating a drive identifier table on the storage medium that stores index values for each drive, allowing the storage drive to write its identifier along with data, enabling identification of the drive that wrote specific addressable units, and maintaining an audit trail for diagnostic purposes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If no drive identification mechanism is implemented, then the system is simpler, but malfunction diagnosis becomes impossible

Engineering Contradiction:

Improvemalfunction diagnosis capabilityVSAvoiddrive identification mechanism

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent creates a copy of the drive's identification information by writing the drive identifier to the removable storage medium itself. This allows the medium to carry information about which drive last accessed it, enabling diagnosis without adding complex tracking hardware or software to the drive.

Inventive Principle:

Principle #26Copying

Solution Approach 2:

The removable storage medium acts as an intermediary that stores drive identification information. Instead of requiring direct communication between drives and a central management system, the medium itself carries the identification data, simplifying the overall system architecture.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Reliability

If drive identifier is stored on the medium, then malfunction source can be identified, but additional storage space is required

Engineering Contradiction:

Improvedrive identification accuracyVSAvoidstorage space on medium

Core Design Contradiction:

ReliabilityVSQuantity of substance

Solution Approach 1:

The drive identifier is stored in a specific, localized area of the storage medium (such as a reserved sector or metadata field) rather than distributing identification information throughout the entire medium. This minimizes the storage space required while maintaining reliable drive identification.

Inventive Principle:

Principle #3Local quality

3Adaptability or versatility

If multiple drives can write to the same medium, then versatility is improved, but determining which drive caused a malfunction becomes difficult

Engineering Contradiction:

Improvemulti-drive compatibilityVSAvoidmalfunction source identification

Core Design Contradiction:

Adaptability or versatilityVSDifficulty of detecting and measuring

Solution Approach 1:

The system implements feedback by having each drive write its identification information to the medium whenever it accesses the medium. This creates a continuous record of which drive last accessed the medium, providing immediate feedback for troubleshooting without preventing multiple drives from using the same medium.

Inventive Principle:

Principle #23Feedback

Data Source

PatentUS8984218B2Drive indicating mechanism for removable media

Publication Date: 2015.03.17 HEWLETT PACKARD DEVELOPMENT COMPANY LP

AI summary

A system (and associated method) comprises a storage drive and a central processing unit (“CPU”). The storage drive is adapted to accommodate a removable storage medium. The CPU is configured to execute code to cause the CPU to write data to an addressable unit of the storage medium and also to write an identifying value to the addressable unit. The identifying value is indicative of an identity of the system or the storage drive.