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1. 发明授权

US09335941B1 Crash consistency 有权
公开(公告)号：US09335941B1
公开(公告)日：2016-05-10
申请号：US14630939
申请日：2015-02-25
申请人： EMC Corporation
发明人： Roy E Clark
IPC分类号： G06F12/02 , G06F3/06
CPC分类号： G06F3/0619 , G06F3/065 , G06F3/0653 , G06F3/0679 , G06F11/1456 , G06F11/1471 , G06F11/1482 , G06F2201/82 , G06F2201/84 , G06F2206/1014
摘要： A method, system, and computer program product comprising using a tracking structure to map a first portion and a second portion of a non-volatile storage medium to a logical representation of the non-volatile storage medium; wherein the first portion is presented by the logical representation as writable storage and using the tracking structure to enable the logical representation to present the data written to the second portion as the data corresponding to the write in the first portion.

2. 发明授权

US08990533B1 Crash consistency 有权
标题翻译：碰撞一致性
公开(公告)号：US08990533B1
公开(公告)日：2015-03-24
申请号：US13684953
申请日：2012-11-26
申请人： EMC Corporation
发明人： Roy E Clark , John S Harwood , David Cohen
IPC分类号： G06F12/00 , G06F13/00 , G06F13/28 , G06F12/16 , G06F17/30 , G06F11/14
CPC分类号： G06F11/1471 , G06F17/30091 , G06F2201/84 , Y10S707/99953
摘要： A computer implemented method, system, and program product for data consistency comprising establishing a memory-mapped file, enabling the memory-mapped file data to be paged to the non-volatile storage medium, receiving, at a consistency layer, a write IO; wherein the write IO corresponds to a space on the storage medium, issuing a read IO to the storage medium, wherein the read IO corresponds to the space on the storage medium to be overwritten by the write IO, writing the data of the read IO to a undo log and writing the write IO to the storage medium.
摘要翻译：一种用于数据一致性的计算机实现的方法，系统和程序产品，包括建立存储器映射文件，使存储器映射文件数据能够被分页到非易失性存储介质，在一致性层处接收写入IO; 其中所述写入IO对应于所述存储介质上的空间，向所述存储介质发出读取的IO，其中所述读取的IO对应于由所述写入IO覆盖的所述存储介质上的空间，将读取的IO的数据写入一个撤销日志，并将写IO写入存储介质。

3. 发明授权

US09003106B1 Crash consistency 有权
标题翻译：碰撞一致性
公开(公告)号：US09003106B1
公开(公告)日：2015-04-07
申请号：US13803840
申请日：2013-03-14
申请人： EMC Corporation
发明人： Roy E Clark , John S Harwood , David Cohen
IPC分类号： G06F12/02 , G06F12/14
CPC分类号： G06F12/1416 , G06F11/1471 , G06F12/0246 , G06F2201/84 , Y10S707/99953
摘要： A system, method, and computer program product for establishing a memory-mapped file, enabling the memory-mapped file data to be paged to a non-volatile storage medium, marking a portion of the memory-mapped file as protected, wherein a write to the memory mapped file throws a segmentation fault; receiving a write at the memory mapped file, throwing a segmentation fault; and handling the segmentation fault in a segmentation handler, where the handling comprises reading the information in the memory mapped file facility into the undo log, and writing the write IO to the storage medium.
摘要翻译：一种用于建立存储器映射文件的系统，方法和计算机程序产品，使得能够将所述存储器映射文件数据分页到非易失性存储介质，将所述存储器映射文件的一部分标记为受保护的，其中写入对内存映射文件引发分段错误; 在存储器映射文件中接收写入，引发分段错误; 以及处理分段处理器中的分段故障，其中处理包括将存储器映射文件设施中的信息读入撤销日志，以及将写IO写入存储介质。

4. 发明授权

US08977830B1 Crash consistency 有权
标题翻译：碰撞一致性
公开(公告)号：US08977830B1
公开(公告)日：2015-03-10
申请号：US13798395
申请日：2013-03-13
申请人： EMC Corporation
发明人： Roy E Clark
IPC分类号： G06F12/16 , G06F12/02 , G06F11/14 , G06F3/06
CPC分类号： G06F3/0619 , G06F3/065 , G06F3/0653 , G06F3/0679 , G06F11/1456 , G06F11/1471 , G06F11/1482 , G06F2201/82 , G06F2201/84 , G06F2206/1014
摘要： A method, system, and computer program product comprising using a tracking structure to map a first portion and a second portion of a non-volatile storage medium to a logical representation of the non-volatile storage medium; wherein the first portion is presented by the logical representation as writable storage and using the tracking structure to enable the logical representation to present the data written to the second portion as the data corresponding to the write in the first portion.
摘要翻译：一种方法，系统和计算机程序产品，包括使用跟踪结构将非易失性存储介质的第一部分和第二部分映射到非易失性存储介质的逻辑表示; 其中所述第一部分由所述逻辑表示形式呈现为可写存储，并且使用所述跟踪结构来使所述逻辑表示能够将写入所述第二部分的数据呈现为与所述第一部分中的所述写入对应的数据。

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