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Thursday, March 12 • 9:00am - 9:50am
Open-Channel Solid State Drives - Matias Bjørling, University of Copenhagen

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A new type of SSDs is under development, referred to as Open-Channel SSDs. These SSDs expose additional information about its geometry and enables the host to make internal data placement decisions on their behalf. By moving placement logic to the host, the design space for alternative storage interfaces that go beyond the traditional block device interface opens up. Examples of these interfaces include flash-optimized file-systems, and key-value stores.

This presentation will give an introduction to Open-Channels SSDs and the kernel integration, i.e., LightNVM. The main objective is to present this new storage interface and report on its support in the kernel. It will outline the open-channel SSD interface and abstraction model, the LightNVM kernel implementation, and the present two common targets: generic block interface and direct flash block access using a key-value interface.

Speakers
avatar for Matias Bjørling

Matias Bjørling

Member of Technical Staff, CNEX Labs
Matias Bjørling obtained a Ph.D. in operating systems and Solid State Drives from IT University of Copenhagen. He is currently a member of CNEX Labs technical staff. Before that, he worked with performance characterization of flash-based SSDs, operating- and database systems research and the multi-queue block layer. Matias is a contributor to the Linux Kernel and is the maintainer of the LightNVM subsystem for Open-Channel SSDs.


Thursday March 12, 2015 9:00am - 9:50am
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