Invention Application
- Patent Title: Apparatus, System, and Method for Bad Block Remapping
- Patent Title (中): 坏块重映射的装置,系统和方法
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Application No.: US13297076Application Date: 2011-11-15
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Publication No.: US20120084611A1Publication Date: 2012-04-05
- Inventor: David Flynn , John Strasser , Jonathan Thatcher , David Atkisson , Michael Zappe , Joshua Aune , Kevin Vigor
- Applicant: David Flynn , John Strasser , Jonathan Thatcher , David Atkisson , Michael Zappe , Joshua Aune , Kevin Vigor
- Applicant Address: US UT Salt Lake City
- Assignee: FUSION-IO, INC.
- Current Assignee: FUSION-IO, INC.
- Current Assignee Address: US UT Salt Lake City
- Main IPC: G11C29/00
- IPC: G11C29/00 ; G06F11/16

Abstract:
An apparatus, system, and method are disclosed for bad block remapping. A bad block identifier module identifies one or more data blocks on a solid-state storage element as bad blocks. A log update module writes at least a location of each bad block identified by the bad block identifier module into each of two or more redundant bad block logs. A bad block mapping module accesses at least one bad block log during a start-up operation to create in memory a bad block map. The bad block map includes a mapping between the bad block locations in the bad block log and a corresponding location of a replacement block for each bad block location. Data is stored in each replacement block instead of the corresponding bad block. The bad block mapping module creates the bad block map using one of a replacement block location and a bad block mapping algorithm.
Public/Granted literature
- US08239714B2 Apparatus, system, and method for bad block remapping Public/Granted day:2012-08-07
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