Impact of the NAND Flash Power Supply on Solid State Drives Reliability and Performance
| Autor: | Cristian Zambelli, Luca Crippa, Lorenzo Zuolo, Piero Olivo, Rino Micheloni |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Computer science
Performance Solid-state NAND gate 02 engineering and technology Power Supply 01 natural sciences NO 0103 physical sciences 0202 electrical engineering electronic engineering information engineering Electrical and Electronic Engineering Safety Risk Reliability and Quality SSD 010302 applied physics Bit Errors Quality of service 020208 electrical & electronic engineering Bandwidth (signal processing) Byte Energy consumption Reliability Electronic Optical and Magnetic Materials Reliability engineering Solid State Drives SSD Reliability Performance Power Supply Bit Errors Bit error rate Decoding methods Solid State Drives |
| Zdroj: | IEEE Transactions on Device and Materials Reliability. 18:247-255 |
| ISSN: | 1558-2574 1530-4388 |
| DOI: | 10.1109/tdmr.2018.2819720 |
| Popis: | The NAND flash memory technology is the fundamental building block of storage systems like solid state drives. Their reliability drastically impacts the design choices of the error recovery flows exploited to improve drive’s performance, which progressively degrades as the number of bit errors to be corrected increases. Among the many causes producing errors, it is found that the NAND flash power supply plays a non-negligible role. In this paper, we will show how the drive’s performance degradation rate measured by the sustainable bandwidth, read latency, and quality of service metrics, heavily depends on the power supply. The results will show that by using a lower power supply in endeavor to reduce the energy consumption of the drive will yield a significant bandwidth (up to 44.4 kIOPS), latency (up to $504~\boldsymbol {\mu }\text{s}$ ), and quality-of-service (up to 1.5 ms) detriment. Counterintuitively, we will show that the overall energy consumption per byte will increase (up to 4.5 times) in specific working conditions of the drive. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|