Invention Grant
US09176864B2 Non-volatile memory and method having block management with hot/cold data sorting
有权
具有热/冷数据排序的块管理的非易失性存储器和方法
- Patent Title: Non-volatile memory and method having block management with hot/cold data sorting
- Patent Title (中): 具有热/冷数据排序的块管理的非易失性存储器和方法
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Application No.: US13468737Application Date: 2012-05-10
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Publication No.: US09176864B2Publication Date: 2015-11-03
- Inventor: Sergey Anatolievich Gorobets , Alan David Bennett , Tom Hugh Shippey , Liam Michael Parker , Yauheni Yaromenka , Steven T. Sprouse , William S. Wu , Marielle Bundukin
- Applicant: Sergey Anatolievich Gorobets , Alan David Bennett , Tom Hugh Shippey , Liam Michael Parker , Yauheni Yaromenka , Steven T. Sprouse , William S. Wu , Marielle Bundukin
- Applicant Address: US TX Plano
- Assignee: SANDISK TECHNOLOGIES, INC.
- Current Assignee: SANDISK TECHNOLOGIES, INC.
- Current Assignee Address: US TX Plano
- Agency: Davis Wright Tremaine LLP
- Main IPC: G06F12/00
- IPC: G06F12/00 ; G06F12/02 ; G06F3/06
Abstract:
A non-volatile memory organized into flash erasable blocks sorts units of data according to a temperature assigned to each unit of data, where a higher temperature indicates a higher probability that the unit of data will suffer subsequent rewrites due to garbage collection operations. The units of data either come from a host write or from a relocation operation. The data are sorted either for storing into different storage portions, such as SLC and MLC, or into different operating streams, depending on their temperatures. This allows data of similar temperature to be dealt with in a manner appropriate for its temperature in order to minimize rewrites. Examples of a unit of data include a logical group and a block.
Public/Granted literature
- US20120297122A1 Non-Volatile Memory and Method Having Block Management with Hot/Cold Data Sorting Public/Granted day:2012-11-22
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