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DropBox Removed their SSDs, got 20% faster writes

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Manage episode 353356577 series 1954062
Kandungan disediakan oleh Hussein Nasser. Semua kandungan podcast termasuk episod, grafik dan perihalan podcast dimuat naik dan disediakan terus oleh Hussein Nasser atau rakan kongsi platform podcast mereka. Jika anda percaya seseorang menggunakan karya berhak cipta anda tanpa kebenaran anda, anda boleh mengikuti proses yang digariskan di sini https://ms.player.fm/legal.

https://dropbox.tech/infrastructure/increasing-magic-pocket-write-throughput-by-removing-our-ssd-cache-disks

In this episode of the backend engineering show I’ll discuss how Dropbox improved their write through put by 20% by removing all their SSDs (yes I was surprised too). DropBox uses an SSD layer as a write-back cache with SMR drives as their backend persistent storage. They changed their model to write directly to the hard drives.

0:00 Intro

2:00 Article Summary

3:00 SMR Drives

6:00 SSD Cache & WriteBack

8:00 Replacing Cache

9:30 Storage Engine Background

14:30 Why did they do it

15:00 The limitation of SSDs & Zoned Namespaces

19:30 Updating the Storage Engine

22:30 Tradeoffs

26:00 Rollout

28:00 Summary

  continue reading

526 episod

Artwork
iconKongsi
 
Manage episode 353356577 series 1954062
Kandungan disediakan oleh Hussein Nasser. Semua kandungan podcast termasuk episod, grafik dan perihalan podcast dimuat naik dan disediakan terus oleh Hussein Nasser atau rakan kongsi platform podcast mereka. Jika anda percaya seseorang menggunakan karya berhak cipta anda tanpa kebenaran anda, anda boleh mengikuti proses yang digariskan di sini https://ms.player.fm/legal.

https://dropbox.tech/infrastructure/increasing-magic-pocket-write-throughput-by-removing-our-ssd-cache-disks

In this episode of the backend engineering show I’ll discuss how Dropbox improved their write through put by 20% by removing all their SSDs (yes I was surprised too). DropBox uses an SSD layer as a write-back cache with SMR drives as their backend persistent storage. They changed their model to write directly to the hard drives.

0:00 Intro

2:00 Article Summary

3:00 SMR Drives

6:00 SSD Cache & WriteBack

8:00 Replacing Cache

9:30 Storage Engine Background

14:30 Why did they do it

15:00 The limitation of SSDs & Zoned Namespaces

19:30 Updating the Storage Engine

22:30 Tradeoffs

26:00 Rollout

28:00 Summary

  continue reading

526 episod

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