The Limitations of Today's SSDs | The Backend Engineering Show

The Backend Engineering Show with Hussein Nasser

Hussein Nasser에서 제공하는 콘텐츠입니다. 에피소드, 그래픽, 팟캐스트 설명을 포함한 모든 팟캐스트 콘텐츠는 Hussein Nasser 또는 해당 팟캐스트 플랫폼 파트너가 직접 업로드하고 제공합니다. 누군가가 귀하의 허락 없이 귀하의 저작물을 사용하고 있다고 생각되는 경우 여기에 설명된 절차를 따르실 수 있습니다 https://ko.player.fm/legal.

3+ y ago 26:07

MP3•에피소드 홈

Backend database applications relay on good storage systems for performance, durability and low latency. SSDs have been a great invention that changed the storage game compared to mechanical drives. However, SSDs came with their own sets of problems which can cause database reads and writes to plummet after a while. This episode discusses the current limitations of SSDs include garbage collection, wear leveling, over provisioning and how zoned name spaces “may” fix this.

0:00 Intro

1:40 Block

4:00 Logical Block Addressing

6:00 Flash Translation Layer

6:50 DRAM

8:50 Erase unit

11:11 Namespace

12:00 Summary

13:40 Garbage collection

16:49 Over provisioning

18:00 Write amplification

21:28 Wear leveling

Resources

https://www.guru3d.com/news-story/new-malware-bypasses-security-measures-by-using-ssd-over-provisioning.html

https://www.snia.org/educational-library/zoned-namespaces-zns-ssds-disrupting-storage-industry-2020

https://www.youtube.com/watch?v=cbX3P56Jp0o&feature=emb_title

532 에피소드