Out-of-band Data Drive Management via BMC Topology

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Solution Overview

Problem

Existing data drive management solutions are prone to errors due to incorrect identification of drive locations on a backplane, leading to potential disasters, and are often vendor-dependent, failing to manage drives from different manufacturers effectively.

Innovation Solution

The implementation of out-of-band management methods that utilize a baseboard management controller (BMC) to receive and execute commands for data drives, using a cable topology table to accurately identify drive locations and perform operations such as preparation for removal, while providing a vendor-agnostic interface.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If manual drive connection coordination is used, then administrator control is maintained, but drive location identification accuracy deteriorates leading to potential disasters

Engineering Contradiction:
Improvedrive management reliabilityVSAvoiddrive location identification accuracy
Core Design Contradiction:
ReliabilityVSMeasurement precision

Solution Approach 1:

The patent introduces an intermediary system consisting of a backplane with position sensors and a management controller that automatically detects and tracks drive locations. This intermediary eliminates the need for manual coordination while providing accurate real-time location identification, thus resolving the contradiction between maintaining administrator control and improving location identification accuracy.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The system enables self-service through automated drive location detection using sensors on the backplane. The management controller automatically queries sensor states to determine drive positions without administrator intervention, improving both reliability and accuracy while reducing human error in drive management.

Inventive Principle:
Principle #25Self-service

2Adaptability or versatility

If vendor-specific management solutions are used, then proprietary drive features are optimized, but compatibility with drives from different vendors deteriorates

Engineering Contradiction:
Improvemulti-vendor drive compatibilityVSAvoiddrive management reliability
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The patent implements a universal management controller that can manage drives from different vendors through a standardized interface. The controller uses generic position sensors and a common communication protocol that works across multiple drive manufacturers, achieving both multi-vendor compatibility and reliable drive management without requiring vendor-specific solutions.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentUS10445283B2Out-of-band management of data drives
Publication Date: 2019.10.15 LENOVO GLOBAL TECHNOLOGIES SWITZERLAND INTERNATIONAL GMBH
  • US10445283B2 patent drawing
  • US10445283B2 patent drawing
  • US10445283B2 patent drawing

AI summary

Out-of-band management of data drives including receiving, from a user, a control command targeting a data drive communicatively coupled to a backplane, wherein the data drive is communicatively coupled to the computing device via an interconnect bus; generating, based on the control command, an out-of-band command targeting a baseboard management controller (BMC) communicatively coupled to the backplane, wherein the out-of-band command comprises a data drive location identifier; sending the out-of-band command to the BMC, wherein the BMC, in response, identifies the data drive on the backplane using the data drive location identifier and a cable topology table, and performs the out-of-band command on the data drive; and receiving, from the BMC, a first notification that the out-of-band command has been performed on the data drive identified by the data drive location identifier.