Dual-Purpose Server Chassis Bay for PSU or Storage
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Solution Overview
Problem
Conventional information handling systems (IHSs) face challenges in optimizing space for storage and power capabilities, particularly in densely populated rack-mounted servers where limited space is available for hard drive disk arrays and backup power is not always required.
Innovation Solution
The IHS chassis features an accessory bay that can accommodate either a backup power supply unit (PSU) or a storage module, with a midplane apparatus providing electrical connectors for each, allowing the system to detect and configure accordingly for enhanced storage or power capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the accessory bay is dedicated to power supply units, then power reliability is improved, but storage capability is lost
Solution Approach 1:
The accessory bay is designed with universal electrical connectors that can interface with both power supply units and storage modules. The midplane apparatus includes multiple connector types (power connectors and storage connectors) that can be selectively activated based on the inserted module type, allowing the same physical bay to serve multiple functions - either power reliability enhancement or storage capability enhancement.
2Quantity of substance
If the accessory bay is dedicated to storage modules, then storage capability is improved, but power reliability is lost
Solution Approach 1:
The accessory bay structure incorporates universal mounting mechanisms and electrical interfaces that accommodate both storage modules and power supply units. The system detects the inserted module type and configures the midplane apparatus accordingly, enabling the same bay to provide either storage capability or power reliability based on operational requirements.
3Adaptability or versatility
If the chassis provides both power and storage connectors in the accessory bay, then adaptability is improved, but device complexity increases
Solution Approach 1:
The midplane apparatus incorporates dynamic connector activation based on module detection. When a module is inserted, the system detects its type (power or storage) and selectively activates only the relevant electrical connectors and circuitry. This dynamic configuration reduces the effective complexity at any given time while maintaining the capability to support both module types in the same bay.
Data Source
AI summary
An information handling system (IHS) includes a chassis that has an accessory bay which is accessible from an exterior of the IHS. The accessory bay supports insertion of one of the PSU and the storage module. A midplane apparatus attached to the chassis at an interior end of the accessory bay has a first electrical connector for electrically connecting to a power supply unit (PSU) connector and a second electrical connector for electrically communicating with a storage module connector when a storage module is inserted into the accessory bay. The IHS detects via the first electrical connector when a PSU is inserted in the accessory bay, and a power controller configures the IHS to receive electrical power from the PSU. The IHS also detects via the second electrical connector when a storage module is inserted in the accessory bay and configures the storage module for access and data storage.