Storage Device Display Controller for State Indication
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Solution Overview
Problem
Current storage devices lack effective visual indicators to distinguish between operational states, such as access, standby, and failure, making it difficult to identify and replace faulty devices, especially in densely packed server trays where the size of devices has reduced.
Innovation Solution
Incorporating a display device and a display controller within the storage device that changes colors based on detected states, including access, standby, failure, and replacement signals, to visually indicate the device's status, utilizing a detection circuit to trigger these color changes in response to physical or electrical changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If storage devices are made smaller to fit densely packed server trays, then the quantity of storage devices per unit area increases, but the visual indicators become harder to see and distinguish
Solution Approach 1:
The patent employs color-changing LEDs as visual indicators on storage devices. Different colors (e.g., green, yellow, red, blue) represent different operational states such as normal operation, warning, error, and replacement needed. This allows clear visual distinction between devices and their states even when devices are densely packed and small in size, directly resolving the contradiction between increasing device quantity and maintaining indicator visibility.
2Ease of operation
If traditional visual indicators are used without state-specific color coding, then the device complexity remains low, but the ease of identifying and replacing faulty devices deteriorates
Solution Approach 1:
The system uses color-coded LED indicators to represent different operational states of storage devices. Each color corresponds to a specific state (e.g., green for normal, red for failure), enabling operators to quickly identify faulty devices without complex interfaces or additional components. This simple yet effective color-coding system greatly improves ease of operation while adding minimal complexity.
Solution Approach 2:
The display device provides visual feedback about the operational state of storage devices to operators. The controller monitors device health and operational status, then triggers appropriate color displays to communicate the state. This feedback mechanism enables rapid identification of issues and facilitates quick decision-making for maintenance and replacement, significantly improving ease of operation.
3Loss of information
If no visual indicators are provided, then the device complexity is minimized, but the loss of information about device states increases
Solution Approach 1:
The patent uses color-changing LEDs to encode different operational states of storage devices. Each color represents specific information about device health, operational status, or maintenance needs. This color-coding system efficiently communicates multiple states using a simple visual mechanism, minimizing information loss while adding minimal complexity to the device.
Solution Approach 2:
The display device serves multiple functions: it indicates operational status, alerts to errors, signals replacement needs, and provides feedback on device health. By consolidating these multiple information-carrying functions into a single color-coded LED indicator system, the patent maximizes information transmission while keeping the added complexity minimal and manageable.
Data Source
AI summary
A storage device and a method for indicating a state of a storage device are provided. The storage device may include nonvolatile memory devices, a controller that controls the nonvolatile memory devices, a display device, and a display controller that controls the display device. The display controller may control the display device to display different colors respectively corresponding to states of the storage device. The states may include an access state in which the controller accesses the nonvolatile memory devices according to a request from an external host device, a standby state in which the controller is ready to perform the request from the external host device, a device fail state in which the controller and the nonvolatile memory devices cannot operate, and a replacement state in which the controller and the nonvolatile memory devices are selected for replacement.