Invention Grant
- Patent Title: Management of and region selection for writes to non-volatile memory
- Patent Title (中): 管理和区域选择写入非易失性存储器
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Application No.: US14158827Application Date: 2014-01-19
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Publication No.: US09395924B2Publication Date: 2016-07-19
- Inventor: Earl T Cohen , Timothy Lawrence Canepa
- Applicant: Seagate Technology LLC
- Applicant Address: US CA Cupertino
- Assignee: Seagate Technology LLC
- Current Assignee: Seagate Technology LLC
- Current Assignee Address: US CA Cupertino
- Agency: Cesari & Reed, LLP
- Agent Kirk A. Cesari
- Main IPC: G06F3/06
- IPC: G06F3/06 ; G06F12/02

Abstract:
Management of and region selection for writes to non-volatile memory of an SSD improves performance, reliability, unit cost, and/or development cost of an SSD. A controller receives and determines characteristics of writes (e.g. by analyzing the write data, the write data source, and/or by receiving a hint) and selects a region based on the determined characteristics and properties of regions of non-volatile memory. For example, a controller receives writes determined to be read-only data and selects regions of non-volatile memory containing cells that are likely to have write failures. By placing read-only data in write failure prone regions, the likelihood of an error is reduced, thus improving reliability. As another example, a controller receives writes hinted to be uncompressible and selects regions of non-volatile memory containing uncompressible data.
Public/Granted literature
- US20140208007A1 MANAGEMENT OF AND REGION SELECTION FOR WRITES TO NON-VOLATILE MEMORY Public/Granted day:2014-07-24
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