Rackmount Storage Server Top-Loading PCB Rear Controller

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Solution Overview

Problem

Rackmount servers face challenges in optimizing space efficiency and operational performance due to size constraints and the need for efficient arrangement of components.

Innovation Solution

A rackmount storage server design featuring a printed circuit board (PCB) with top-loading storage devices and a controller assembly connected from the rear, along with a passive backplane for connecting hard disks, facilitating efficient airflow and hot-swappable storage devices.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of stationary object

If storage devices are arranged vertically one on top of another in a rack, then space efficiency is improved, but accessibility and operational performance deteriorate

Engineering Contradiction:

Improvespace efficiencyVSAvoidaccessibility to storage devices

Core Design Contradiction:

Area of stationary objectVSEase of operation

Solution Approach 1:

Instead of accessing storage devices from the front or side as in conventional racks, this invention enables top-loading access where storage devices are inserted and removed from the top of the chassis. This inverted access direction allows vertical stacking while maintaining ease of operation through top-accessible hot-swappable bays.

Inventive Principle:

Principle #13The other way round (Inversion)

2Productivity

If more storage devices are added to increase capacity, then productivity is improved, but device complexity and cooling requirements worsen

Engineering Contradiction:

Improvestorage capacityVSAvoidcooling requirements

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The chassis is divided into multiple independent hot-swappable storage bays that can be accessed and serviced separately. Each bay can be independently managed for cooling and operational purposes, allowing high storage capacity while distributing cooling requirements across segmented zones rather than a single complex cooling system.

Inventive Principle:

Principle #1Segmentation

3Ease of operation

If storage devices are made hot-swappable for ease of operation, then ease of operation is improved, but reliability and data protection during power failures worsen

Engineering Contradiction:

Improvehot-swappable capabilityVSAvoiddata protection during power failures

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The system incorporates power failure protection mechanisms that prepare and protect data before power outages occur. This includes power supply redundancy and data protection features that activate during power failures, cushioning against data loss while maintaining hot-swappable operation during normal conditions.

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

Data Source

PatentUS7791894B2Compact rackmount storage server

Publication Date: 2010.09.07 ORACLE AMERICAN INC

AI summary

A rackmount storage server has a printed circuit board (PCB) having connectors for connecting with a plurality of top-loading storage devices. A controller assembly having a PCI expansion slot, is arranged to operatively connect to the passive backplane from a rear side of the PCB. Further, the rackmount storage server has redundant cooling unit for facilitating air flow in an interior region of the rackmount storage server. Further, the rackmount storage server may have an integrated battery for saving power for use in case of, for example, a power failure.