Open-channel SSD

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An open-channel solid state drive is a solid-state drive which does not have a firmware Flash Translation Layer implemented on the device, but instead leaves the management of the physical solid-state storage to the computer's operating system.[1] The Linux 4.4 kernel is an example of an operating system kernel that supports open-channel SSDs which follow the NVM Express specification, by providing an abstraction layer called LightNVM.[2][3]


  1. ^ Matias Bjørling (March 12, 2015). "Open-Channel Solid State Drives" (PDF).
  2. ^ Michael Larabel (15 November 2015). "A Look At The New Features Of The Linux 4.4 Kernel". Phoronix.
  3. ^ Michael Larabel (3 November 2015). "LightNVM Support Is Going Into Linux 4.4". Phoronix.