17884018. METHOD FOR REDUCING SOLID-STATE DEVICE (SSD) OPEN TIME AND SYSTEM THEREOF simplified abstract (Samsung Electronics Co., Ltd.)

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METHOD FOR REDUCING SOLID-STATE DEVICE (SSD) OPEN TIME AND SYSTEM THEREOF

Organization Name

Samsung Electronics Co., Ltd.

Inventor(s)

Tushar Tukaram Patil of Bengaluru (IN)

Anantha Sharma of Bengaluru (IN)

Sharath Kumar Kodase of Bengaluru (IN)

Suman Prakash Balakrishnan of Bengaluru (IN)

METHOD FOR REDUCING SOLID-STATE DEVICE (SSD) OPEN TIME AND SYSTEM THEREOF - A simplified explanation of the abstract

This abstract first appeared for US patent application 17884018 titled 'METHOD FOR REDUCING SOLID-STATE DEVICE (SSD) OPEN TIME AND SYSTEM THEREOF

Simplified Explanation

The patent application describes methods and systems for reducing the open time of a solid-state drive (SSD). The open time refers to the time it takes for the SSD to be ready for use after a power on sequence.

  • The SSD's logical-to-physical (L2P) address mapping table is divided into segments.
  • Each segment is assigned a journal buffer from a set of journal buffers.
  • During the power on sequence, a portion of the segments is recreated by replaying a subset of the journal buffers.
  • A device-ready signal is sent to the host device once the recreation of the portion of segments is successful.
  • The remaining portion of the segments is recreated in the background mode by replaying another subset of the journal buffers.

Potential Applications

  • This technology can be applied in various industries that utilize solid-state drives, such as computer systems, data centers, and embedded systems.
  • It can improve the performance and reliability of SSDs, leading to faster boot times and reduced downtime.

Problems Solved

  • The technology addresses the issue of long open times for solid-state drives during the power on sequence.
  • By dividing the address mapping table into segments and utilizing journal buffers, the recreation process can be optimized, reducing the time required for the SSD to be ready for use.

Benefits

  • Faster open times for solid-state drives result in improved overall system performance and user experience.
  • The use of journal buffers allows for efficient recreation of segments, minimizing the time required for the SSD to become operational.
  • The background mode recreation of segments ensures that the SSD remains available for use while the remaining portion is being recreated.


Original Abstract Submitted

Provided are methods, apparatuses, systems, and computer-readable storage media for reducing an open time of a solid-state drive (SSD). In an embodiment, a method includes dividing a logical-to-physical (L2P) address mapping table of the SSD into a plurality of segments. The method further includes assigning one journal buffer of a plurality of journal buffers to each segment of the plurality of segments. The method further includes recreating, during a power on sequence of the SSD, a portion of the plurality of segments by replaying a first subset of the plurality of journal buffers. The method further includes sending, to a host device, a device-ready signal upon successful recreation of the portion of the plurality of segments. The method further includes recreating, in a background mode, a remaining portion of the plurality of segments by replaying a second subset of the plurality of journal buffers.

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