Patents by Inventor Dong Gi Daniel LEE

Dong Gi Daniel LEE has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Storage device with fault resilient read-only mode
    Patent number: 12026055
    Abstract: A storage device, and a method for operating a storage device. In some embodiments, the storage device includes storage media, and the method includes: determining, by the storage device, that the storage device is in a fault state from which partial recovery is possible by operating the storage device in a first read-only mode; and operating the storage device in the first read-only mode, the operating in the first read-only mode including: determining that the age of a first data item stored in a page of the storage device has exceeded a threshold age, and copying the first data item into a rescue space in the storage device.
    Type: Grant
    Filed: December 1, 2020
    Date of Patent: July 2, 2024
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yang Seok Ki, Dong Gi Daniel Lee, Sung Wook Ryu, Ehsan Najafabadi
  • RAID system with fault resilient storage devices
    Patent number: 11775391
    Abstract: A storage system, and a method for operating a storage system. In some embodiments, the system includes a first storage device and a second storage device, and the method includes: determining that the first storage device is in a read-only state and that the second storage device is in a read-write state; performing a write operation, of a first stripe, to the storage system; performing a first read operation, of a second stripe, from the storage system; and performing a second read operation, of the first stripe, from the storage system, wherein: the performing of the write operation includes: writing a portion of the first stripe to the second storage device, and making an entry in a mapping table for the first stripe.
    Type: Grant
    Filed: December 1, 2020
    Date of Patent: October 3, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sung Wook Ryu, Yang Seok Ki, Dong Gi Daniel Lee, Changho Choi, Ehsan Najafabadi
  • RAID SYSTEM WITH FAULT RESILIENT STORAGE DEVICES
    Publication number: 20220012142
    Abstract: A storage system, and a method for operating a storage system. In some embodiments, the system includes a first storage device and a second storage device, and the method includes: determining that the first storage device is in a read-only state and that the second storage device is in a read-write state; performing a write operation, of a first stripe, to the storage system; performing a first read operation, of a second stripe, from the storage system; and performing a second read operation, of the first stripe, from the storage system, wherein: the performing of the write operation includes: writing a portion of the first stripe to the second storage device, and making an entry in a mapping table for the first stripe.
    Type: Application
    Filed: December 1, 2020
    Publication date: January 13, 2022
    Inventors: Sung Wook RYU, Yang Seok KI, Dong Gi Daniel LEE, Changho CHOI, Ehsan NAJAFABADI
  • STORAGE DEVICE WITH FAULT RESILIENT READ-ONLY MODE
    Publication number: 20220012130
    Abstract: A storage device, and a method for operating a storage device. In some embodiments, the storage device includes storage media, and the method includes: determining, by the storage device, that the storage device is in a fault state from which partial recovery is possible by operating the storage device in a first read-only mode; and operating the storage device in the first read-only mode, the operating in the first read-only mode including: determining that the age of a first data item stored in a page of the storage device has exceeded a threshold age, and copying the first data item into a rescue space in the storage device.
    Type: Application
    Filed: December 1, 2020
    Publication date: January 13, 2022
    Inventors: Yang Seok KI, Dong Gi Daniel LEE, Sung Wook RYU, Ehsan NAJAFABADI