公开(公告)号：US09092323B2

公开(公告)日：2015-07-28

申请号：US14064703

申请日：2013-10-28

申请人： Marvell World Trade Ltd.

发明人： Luan Ton-That ,  Lau Nguyen ,  Gwoyuh Hwu

IPC分类号： G06F12/02 ,  G06F12/10 ,  G06F11/14

CPC分类号： G06F12/0246 ,  G06F11/1441 ,  G06F2212/7207

摘要： A memory includes first memory configured to store first data indicating relationships between logical addresses and respective physical addresses, wherein the physical addresses are arranged in a plurality of different groups, respective statuses of each of the plurality of different groups, and an activity log indicating when any of the respective statuses has changed. A second memory is configured to store second data in memory locations corresponding to the physical addresses and, in response to a respective status of one of the plurality of groups changing, store a portion of the first data corresponding to the one of the plurality of groups. A recovery module is configured to update, in response to the activity log indicating that the respective status of the one of the plurality of groups has changed, the first data with the portion of the first data corresponding to the one of the plurality of groups.

摘要翻译： 存储器包括被配置为存储指示逻辑地址和相应物理地址之间的关系的第一数据的第一存储器，其中物理地址被布置在多个不同的组中，多个不同组中的每一个的相应状态，以及指示何时 任何相应的状态已经改变。 第二存储器被配置为将第二数据存储在与物理地址相对应的存储器位置中，并且响应于多个组中的一个组的相应状态改变，存储与多个组中的一个组对应的第一数据的一部分 。 恢复模块被配置为响应于活动日志来更新指示多个组中的一个组的相应状态已经改变的第一数据，其中第一数据的一部分对应于多个组中的一个组。

公开(公告)号：US20140052904A1

公开(公告)日：2014-02-20

申请号：US14064703

申请日：2013-10-28

申请人： Marvell World Trade Ltd.

发明人： Luan Ton-That ,  Lau Nguyen ,  Gwoyuh Hwu

IPC分类号： G06F12/02

CPC分类号： G06F12/0246 ,  G06F11/1441 ,  G06F2212/7207

摘要： A memory includes first memory configured to store first data indicating relationships between logical addresses and respective physical addresses, wherein the physical addresses are arranged in a plurality of different groups, respective statuses of each of the plurality of different groups, and an activity log indicating when any of the respective statuses has changed. A second memory is configured to store second data in memory locations corresponding to the physical addresses and, in response to a respective status of one of the plurality of groups changing, store a portion of the first data corresponding to the one of the plurality of groups. A recovery module is configured to update, in response to the activity log indicating that the respective status of the one of the plurality of groups has changed, the first data with the portion of the first data corresponding to the one of the plurality of groups.

摘要翻译： 存储器包括被配置为存储指示逻辑地址和相应物理地址之间的关系的第一数据的第一存储器，其中物理地址被布置在多个不同的组中，多个不同组中的每一个的相应状态，以及指示何时 任何相应的状态已经改变。 第二存储器被配置为将第二数据存储在与物理地址相对应的存储器位置中，并且响应于多个组中的一个组的相应状态改变，存储与多个组中的一个组对应的第一数据的一部分 。 恢复模块被配置为响应于活动日志来更新指示多个组中的一个组的相应状态已经改变的第一数据，其中第一数据的一部分对应于多个组中的一个组。

公开(公告)号：US09639423B2

公开(公告)日：2017-05-02

申请号：US14538179

申请日：2014-11-11

申请人： Marvell World Trade LTD.

发明人： Jason Adler ,  Perry Neos ,  Luan Ton-That ,  Gwoyuh Hwu

IPC分类号： G06F11/14 ,  G11C14/00 ,  G06F12/02

CPC分类号： G06F11/1435 ,  G06F11/1451 ,  G06F12/0246 ,  G06F2201/84 ,  G11C14/0018 ,  G11C14/0063

摘要： A system including first and second memory and a control module. The first memory stores a first lookup table with first metadata that includes a first mapping between logical and physical addresses and is lost due to an unexpected power down event. The second memory stores a second lookup table with second metadata and an event log. The second metadata includes a second mapping between the logical and physical addresses. The event log includes entries indicating updated associations between respective ones of the logical addresses and one of the physical addresses as included in the first metadata prior to the power down event. The control module: prior to the power down event, performs segmented flushes each including updating a segment of the second metadata with a corresponding segment of the first metadata; and walks the event log to recover a full flush cycle of segments of the first metadata.

公开(公告)号：US20150143174A1

公开(公告)日：2015-05-21

申请号：US14538179

申请日：2014-11-11

申请人： Marvell World Trade LTD.

发明人： Jason Adler ,  Perry Neos ,  Luan Ton-That ,  Gwoyuh Hwu

IPC分类号： G06F11/14

CPC分类号： G06F11/1435 ,  G06F11/1451 ,  G06F12/0246 ,  G06F2201/84 ,  G11C14/0018 ,  G11C14/0063

摘要： A system including first and second memories and a control module. The first memory stores a first lookup table (LUT) with first metadata. The first metadata maps logical addresses to physical addresses. The first metadata is lost due to an unexpected power down event. The second memory stores an event log and a second LUT with second metadata. The second metadata maps the logical addresses to the physical addresses. The event log includes entries that indicate updated associations between the logical addresses and the physical addresses. The control module, prior to the unexpected power down event, performs segmented flushes that include updating segments of the second metadata with segments of the first metadata. As a result of the unexpected power down event, the control module walks the event log from a first entry to a second entry to recover a single full flush cycle of segments in the first memory

摘要翻译： 一种包括第一和第二存储器和控制模块的系统。 第一存储器存储具有第一元数据的第一查找表（LUT）。 第一个元数据将逻辑地址映射到物理地址。 第一个元数据由于意外断电事件而丢失。 第二存储器存储具有第二元数据的事件日志和第二LUT。 第二个元数据把逻辑地址映射到物理地址。 事件日志包括指示逻辑地址和物理地址之间的更新关联的条目。 在意外断电事件之前，控制模块执行分段刷新，其包括利用第一元数据的段来更新第二元数据的段。 由于意外断电事件的结果，控制模块将事件日志从第一条目移动到第二条目，以恢复第一存储器中的段的单个完全刷新周期