PLP Module Architecture for Storage Data Backup on Power Loss
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Solution Overview
Problem
Storage devices with capacitors or energy sources for power loss protection (PLP) operations face complex configurations, leading to prolonged development periods, increased costs, and higher prices due to hardware and software difficulties.
Innovation Solution
A PLP module connected to a storage device without an energy storage device, comprising a volatile memory, non-volatile memory, and a controller, which performs PLP operations by storing data in the non-volatile memory during sudden power off situations using a capacitor module.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a storage device includes a capacitor or energy storage device for PLP operation, then data protection capability is improved, but device complexity and development difficulty increase
Solution Approach 1:
The patent introduces a PLP module as an intermediary component between the host and the storage device. This module includes a volatile memory, non-volatile memory, and capacitor, and performs PLP operations independently. The storage device itself remains simple without requiring complex PLP circuitry, while the PLP module handles power loss protection functions, thus resolving the contradiction between data protection capability and device complexity.
2Reliability
If a storage device includes a capacitor or energy storage device for PLP operation, then data protection capability is improved, but development period and cost increase
Solution Approach 1:
The patent segments the PLP function from the storage device into a separate PLP module. This modular approach allows the storage device to remain simple and focused on its core function, while the PLP module handles power loss protection. This segmentation reduces the complexity and development time required for the storage device itself, as the PLP functionality can be developed and tested independently.
3Reliability
If a storage device includes a capacitor or energy storage device for PLP operation, then data protection capability is improved, but manufacturing cost increases
Solution Approach 1:
By introducing the PLP module as an intermediary, the patent allows the storage device to remain simple and easier to manufacture. The capacitor and additional memory components are concentrated in the separate PLP module, which can be manufactured independently and then integrated with the storage device. This approach reduces the manufacturing complexity and cost of the storage device itself while maintaining data protection capability.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Simplifies the storage device's operation, reduces development difficulty, and lowers costs while maintaining data integrity by performing PLP operations efficiently.
Implementation Method 1
a capacitor module configured to supply a voltage to the volatile memory and the non-volatile memory when the storage device becomes inaccessible
Data Source
AI summary
Embodiments provide a power loss protection (PLP) module that is connected to a first storage device to perform a PLP operation for the first storage device, including: a volatile memory that stores data according to commands of a host; a non-volatile memory that receives and stores data of the volatile memory when the first storage device becomes inaccessible; a capacitor module that supplies a voltage to the volatile memory and the non-volatile memory when the first storage device becomes inaccessible; and a controller that controls operations of the volatile memory, the non-volatile memory, and the capacitor module.