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1. 发明申请

WO2012075200A3 DYNAMIC HIGHER-LEVEL REDUNDANCY MODE MANAGEMENT WITH INDEPENDENT SILICON ELEMENTS 审中-公开
标题翻译：采用独立硅元素的动态高级别冗余模式管理
公开(公告)号：WO2012075200A3
公开(公告)日：2012-08-16
申请号：PCT/US2011062726
申请日：2011-11-30
申请人： LSI CORP , WERNER JEREMY , BARYUDIN LEONID , CANEPA TIMOTHY , COHEN EARL
发明人： WERNER JEREMY , BARYUDIN LEONID , CANEPA TIMOTHY , COHEN EARL
IPC分类号： G06F12/16 , G06F11/08
CPC分类号： G11B20/1883 , G06F11/1044 , G06F11/108 , H03M13/353
摘要： A Solid-State Disk (SSD) controller enables dynamic higher-level redundancy mode management with independent silicon elements to provide graceful degradation as non-volatile (e.g. flash) memory elements fail during operation of an SSD implemented by the controller. Higher-level error correction provides correction of lower-level uncorrectable errors. If a failure of one of the non-volatile memory elements is detected, then the higher-level error correction is dynamically transitioned from operating in a current mode to operating in a new mode. The transition includes one or more of reducing free space available on the SSD, rearranging data storage of the SSD, recovering/storing failed user data (if possible), and determining/storing revised higher-level error correction information. Operation then continues in the new mode. If another failure of the non-volatile memory elements is detected, then another transition is made to another new mode.
摘要翻译：固态硬盘（SSD）控制器使得具有独立硅元件的动态更高级冗余模式管理能够在非易失性（例如闪存）存储器元件在由控制器实现的SSD的操作期间失败时提供适度的降级。更高级别的纠错功能可纠正较低级别的不可纠正错误。如果检测到非易失性存储器元件之一的故障，则较高级别的错误校正从在当前模式下操作动态地转换到在新模式下操作。转换包括减少SSD上可用的空闲空间，重新安排SSD的数据存储，恢复/存储失败的用户数据（如果可能）以及确定/存储修改的更高级别的纠错信息中的一个或多个。然后操作以新模式继续。如果检测到非易失性存储器元件的另一个故障，则对另一新模式进行另一转换。

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