Mitigating Self-Heating in Solid State Drives for Industrial Internet-of-Things Edge Gateways

Abstract

Data storage in the Industrial Internet-of-Things scenario presents critical aspects related to the necessity of bringing storage devices closer to the point where data are captured. Concerns on storage temperature are to be considered especially when Solid State Drives (SSD)based on 3D NAND Flash technology are part of edge gateway architectures. Indeed, self-heating effects caused by oppressive storage demands combined with harsh environmental conditions call for proper handling at multiple abstraction levels to minimize severe performance slow downs and reliability threats. In this work, with the help of a SSD co-simulation environment that is stimulated within a realistic Industrial Internet-of-Things (IIoT) workload, we explore a methodology orthogonal to performance throttling that can be applied in synergy with the operating system of the host. Results evidenced that by leveraging on the SSD micro-architectural parameters of the queuing system it is possible to reduce the Input/Output operations Per Second (IOPS) penalty due to temperature protection mechanisms with minimum effort by the system. The methodology presented in this work opens further optimization tasks and algorithmic refinements for SSD and system designers not only in the IIoT market segment, but generally in all areas where storage power consumption is a concern.

Pengaruh Geometri Dan Penambahan Jumlah Sirip Terhadap Distribusi Temperatur Heat Sink Sebagai Alternatif Pendinginan Pada Piranti Elektronik

“…Control unit juga bertindak sebagai perantara untuk mengubah instruksi yang dikirim ke prosesor dan memberikan sinyal kontrol ke unit lain seperti unit aritmatika dan logika untuk memberitahu apa yang harus dilakukan serta memproses data yang diproses dan dikirim kembali ke memori. Jika CPU bekerja sangat keras maka memory juga akan menerima beban tersebut yang akan mengakibatkan memori overheat [5][6][7][8] . Alasan inilah yang menjadi masalah utama kenapa memori tipe SSD juga harus diberikan heat sink untuk mengurangi panas yang dihasilkan dari beban komputasi yang dihasilkan CPU.…”

Assessing the Role of Program Suspend Operation in 3D NAND Flash Based Solid State Drives

“…The assumption behind the calculation of the overall memory power consumption in drive is the following: when multiple memory chips are accessed in parallel on an SSD, the Kirchoff's current law (KCL) holds on the power supply of the drive so that the memory sub-system power consumption is the sum of the single power contributions [8]. The results in Figure 11a show one of the negative sides of the program suspension.…”

“…Layout of the components in an SSD (a) and an overview of its internal architecture (b). Reprinted with permission from [8] under Creative Commons License 4.0 (CC-BY).…”