SafeDATA™ Power Loss Data Protection Technology Technical Brief

PublishTime：2021-08-20

SafeDATA™, SMART Modular's trademarked proprietary power loss data protection technology, is offered in SMART’s high-performance, solid-state drive (SSD) products to safeguard the integrity, functionality and data of the SSD in a sudden power loss event.
The concept of adding mitigation against power loss, often referred to as Power Failure Protection (pFail) or Power Loss Protection (PLP), has been a cornerstone in SSD design that makes SSDs a superior storage solution in reliability compared to a traditional hard disk drive (HDD) in critical applications. In high performance SSD architectures, user data and metadata critical to the operation of the SSD are often cached in volatile memory in the SSD controller internal SRAM and external DRAM components. Data caching allows faster read and write access by decoupling data transactions from the slower access and higher latency of the Flash media. To prevent the potential loss of “in-flight” user data in cache and critical metadata that can lead to the SSD becoming non-functional, SSD manufacturers have implemented various power loss protection schemes in their SSD designs.
Unlike the typical pFail or PLP implementation in many SSD products that offers rudimentary protection of user data, or simply safeguard the SSD from “bricking” after a sudden power loss, SafeDATA is a comprehensive suite of hardware and software (controller firmware) implementations that provides the highest level of protection beyond the basics. This includes the continuous monitoring of the integrity of the power loss protection electronics, intelligent power loss detection, data cache flush algorithms, and high reliability capacitors to provide hold-up power with redundancy to ensure long service for the lifetime of the SSD.

Brand of Product：	SMART
Part#：	SP2800 、 S1800 、 MDC7000 、 ME2 、 R800 More Part#
Product Category：	Modular SSD More
Application：	More
Data Type：	Application note & Design Guide More
Safety & Environment Standards：	More
Operating Temperature：	Please see the document for details
Qualification Grade：	More
Qualification Approval：	More
Package：
Language：	English Chinese Chinese and English Japanese
Date of Creation：	01.05.21
Version Number：	Rev.4
Data Encoding：
Data Size：	741 KB

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