[mirror_ubuntu-bionic-kernel.git] / Documentation / lightnvm / pblk.txt

pblk: Physical Block Device Target
==================================

pblk implements a fully associative, host-based FTL that exposes a traditional
block I/O interface. Its primary responsibilities are:

  - Map logical addresses onto physical addresses (4KB granularity) in a
    logical-to-physical (L2P) table.
  - Maintain the integrity and consistency of the L2P table as well as its
    recovery from normal tear down and power outage.
  - Deal with controller- and media-specific constrains.
  - Handle I/O errors.
  - Implement garbage collection.
  - Maintain consistency across the I/O stack during synchronization points.

For more information please refer to:

  http://lightnvm.io

which maintains updated FAQs, manual pages, technical documentation, tools,
contacts, etc.
Commit	Line	Data
a4bd217b JG	1	pblk: Physical Block Device Target
	2	==================================
	3
	4	pblk implements a fully associative, host-based FTL that exposes a traditional
	5	block I/O interface. Its primary responsibilities are:
	6
	7	- Map logical addresses onto physical addresses (4KB granularity) in a
	8	logical-to-physical (L2P) table.
	9	- Maintain the integrity and consistency of the L2P table as well as its
	10	recovery from normal tear down and power outage.
	11	- Deal with controller- and media-specific constrains.
	12	- Handle I/O errors.
	13	- Implement garbage collection.
	14	- Maintain consistency across the I/O stack during synchronization points.
	15
	16	For more information please refer to:
	17
	18	http://lightnvm.io
	19
	20	which maintains updated FAQs, manual pages, technical documentation, tools,
	21	contacts, etc.