Invention Grant
- Patent Title: Checkpointing for DRAM-less SSD
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Application No.: US16021469Application Date: 2018-06-28
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Publication No.: US10754785B2Publication Date: 2020-08-25
- Inventor: Mingwei Zhang , Zheng Zhang , Ravi Sahita
- Applicant: Intel Corporation
- Applicant Address: US CA Santa Clara
- Assignee: Intel Corporation
- Current Assignee: Intel Corporation
- Current Assignee Address: US CA Santa Clara
- Agency: Spectrum IP Law Group LLC
- Main IPC: G06F12/00
- IPC: G06F12/00 ; G06F12/1009 ; G06F12/02

Abstract:
Methods and apparatus related to checkpointing for Solid State Drives (SSDs) that include no DRAM (Dynamic Random Access Memory) are described. In one embodiment, Non-Volatile Memory (NVM) stores an original Logical address to Physical address (L2P) table entry and a shadow L2P table entry. Allocation logic circuitry causes storage of the original L2P table entry and the shadow L2P table entry sequentially in the NVM. Data read from the shadow L2P table entry is capable to indicate a state of the original L2P table entry. Other embodiments are also disclosed and claimed.
Public/Granted literature
- US20190042462A1 CHECKPOINTING FOR DRAM-LESS SSD Public/Granted day:2019-02-07
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