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Monday, June 19 • 14:55 - 15:25
MD RAID1 and NVMe: High Performance Data Duplication - Coly (Yong) Li, SUSE Linux

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On high performance storage devices like NVMe SSD, data duplication can only be realized by software running on server's main CPUs. To support 1 million+ I/O per second on a single server, MD RAID1 is the most popular data duplication solution in Linux kernel. It was originally designed for hard disk drive, for really fast storage devices like NVMe SSD, there are still some challenges existing. This presentation will introduce why MD RAID1 is still highly demanded now days, and how Linux kernel developers cooperate to make a powerful high performance data duplication by MD RAID1. In this presentation, basic MD RAID1 design, code algorithm improvement, and benchmark result will be mentioned as well. The speaker is one of the major patch contributors, first part of the team work effort is merged into Linux v4.11.


Coly (Yong) Li

SUSE Linux
Linux kernel developer from SUSE Labs, working on block layer and maintain md/dm/bcache for SUSE Linux Enterprise Server kernel. In year 2010-2015, I initiated Linux kernel engineering team for Taobao Core Infrastructure and then led cold data storage development for Alibaba Site... Read More →

Monday June 19, 2017 14:55 - 15:25 HKT
Room 307A
  LinuxCon, Developer