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1. 发明申请

WO2010027824A2 METHOD AND APPARATUS FOR MANAGING DATA OBJECTS OF A DATA STORAGE SYSTEM 审中-公开
标题翻译：用于管理数据存储系统的数据对象的方法和装置
公开(公告)号：WO2010027824A2
公开(公告)日：2010-03-11
申请号：PCT/US2009054965
申请日：2009-08-25
申请人： DATA DOMAIN INC , HSU WINDSOR W
发明人： HSU WINDSOR W
IPC分类号： G06F17/00 , G06F17/30
CPC分类号： G06F17/30138
摘要： Techniques for managing data objects of a data storage system are described herein. According to one embodiment, a perfect hash function is generated for data objects stored in a data storage system. For each of the data objects, a hash operation is performed using the perfect hash function to indicate whether the respective data object is alive. Resources associated with the respective data object is reclaimed if it is determined that the respective data object is not alive based on a result of the hash operation using the perfect hash function, where the reclaimed resources are released back to the data storage system as free resources. Other methods and apparatuses are also described.
摘要翻译：本文描述了用于管理数据存储系统的数据对象的技术。根据一个实施例，为存储在数据存储系统中的数据对象生成完美的散列函数。对于每个数据对象，使用完美散列函数来执行散列操作，以指示相应数据对象是否存活。如果基于使用完美散列函数的散列操作的结果确定相应的数据对象不存在，则回收与各个数据对象相关联的资源，其中回收的资源作为空闲资源被释放回数据存储系统。还描述了其它方法和装置。

2. 发明申请

WO2008127546A1 CLUSTER STORAGE USING SUBSEGMENTING 审中-公开
标题翻译：使用配置的集群存储
公开(公告)号：WO2008127546A1
公开(公告)日：2008-10-23
申请号：PCT/US2008/004104
申请日：2008-03-28
申请人： DATA DOMAIN, INC.
发明人： REDDY, Sazzala , MAHESHWARI, Urnesh , LEE, Edward, K , PATTERSON, R., Hugo
IPC分类号： G06F12/00
CPC分类号： G06F3/0604 , G06F3/0644 , G06F3/0683 , G06F17/30091 , G06F17/30138 , G06F17/3015 , G06F17/30312 , G06F17/30489
摘要： Cluster storage is disclosed. A data stream or a data block is received. The data stream or the data block is broken into segments. For each segment, a cluster node is selected, and a portion of the segment smaller than the segment is identified that is a duplicate of a portion of a segment already managed by the cluster node.
摘要翻译：公开集群存储。接收数据流或数据块。数据流或数据块被分成段。对于每个段，选择群集节点，并且识别小于段的段的一部分，其是已经由群集节点管理的段的一部分的副本。

3. 发明申请

WO2008008183A3 LOCALITY-BASED STREAM SEGMENTATION FOR DATA DEDUPLICATION 审中-公开
公开(公告)号：WO2008008183A3
公开(公告)日：2008-01-17
申请号：PCT/US2007/014908
申请日：2007-06-27
申请人： DATA DOMAIN, INC.
发明人： PATTERSON, R., Hugo
IPC分类号： H03M7/00
摘要： Selecting a segment boundary is disclosed. A segmentation window is determined. A plurality of values associated with candidate boundaries within the segmentation window are computed. One of the candidate boundaries is selected based at least in part on a comparison between two or more of the computed values. And, a boundary is determined within the segmentation window.

4. 发明申请

WO2008008183A2 LOCALITY-BASED STREAM SEGMENTATION FOR DATA DEDUPLICATION 审中-公开
标题翻译：基于局部性的数据重传流分割
公开(公告)号：WO2008008183A2
公开(公告)日：2008-01-17
申请号：PCT/US2007014908
申请日：2007-06-27
申请人： DATA DOMAIN INC
发明人： PATTERSON R HUGO
IPC分类号： G06K9/34
CPC分类号： G06F11/1451 , G06F11/1464 , G06F11/1469
摘要： Selecting a segment boundary is disclosed. A segmentation window is determined. A plurality of values associated with candidate boundaries within the segmentation window are computed. One of the candidate boundaries is selected based at least in part on a comparison between two or more of the computed values. And, a boundary is determined within the segmentation window.
摘要翻译：公开了选择分段边界。分割窗口被确定。计算与分割窗口内的候选边界相关联的多个值。至少部分基于两个或更多计算值之间的比较来选择候选边界之一。并且，在分割窗口内确定边界。

5. 发明申请

WO2003065360A1 DISK-BASED ARCHIVAL DATA STORAGE SYSTEM AND METHOD 审中-公开
标题翻译：基于磁盘的存档数据存储系统和方法
公开(公告)号：WO2003065360A1
公开(公告)日：2003-08-07
申请号：PCT/US2003/002785
申请日：2003-01-28
申请人： DATA DOMAIN, INC , LI, Kai , LEE, Howard
发明人： LI, Kai , LEE, Howard
IPC分类号： G11B11/00
CPC分类号： G06F3/0647 , G06F3/0614 , G06F3/0625 , G06F3/0634 , G06F3/0683 , G06F11/1076 , G06F2211/1088 , G11B19/20 , Y02D10/154
摘要： A disk-based archival storage system (20) including a storage unit (26) configured to store archival data, including at least one spindle of disks to magnetically store archival data, an interconnect (24) to either archive to or retrieve data from the storage unit. In one embodiment, the system includes a plurality of the storage units each including at least one spindle of disks. The control unit (22) controls the storage commands to selectively cause the storage unit(s) to shut down or power up, enter a running mode or a standby mode, cause the spindle of disk(s) to either spin up or spin down, and to perform a data integrity check of all the archival data stored in the storage system. In various other embodiments, the control unit runs algorithms that expand the lifetime and longevity of the disk spindles, optimizes power consumption, and performs data migration when a data integrity check identifies correctable errors.
摘要翻译：一种基于磁盘的档案存储系统（20），包括存储单元（26），存储单元（26）被配置为存储归档数据，包括至少一个磁盘主轴以磁性地存储档案数据;互连（24）存储单元。在一个实施例中，系统包括多个存储单元，每个存储单元包括至少一个盘轴。控制单元（22）控制存储命令以选择性地使存储单元关闭或上电，进入运行模式或待机模式，使盘的主轴旋转或旋转并且对存储在存储系统中的所有归档数据执行数据完整性检查。在各种其它实施例中，当数据完整性检查识别可校正错误时，控制单元运行扩展磁盘主轴的寿命和寿命的算法，优化功耗并执行数据迁移。

6. 发明申请

WO2009023397A1 SYSTEM AND METHOD FOR PROVIDING WRITE-ONCE-READ-MANY (WORM) STORAGE 审中-公开
标题翻译：用于提供一次写入（WORM）存储的系统和方法
公开(公告)号：WO2009023397A1
公开(公告)日：2009-02-19
申请号：PCT/US2008/070097
申请日：2008-07-15
申请人： DATA DOMAIN INC. , HSU, Windsor, W.
发明人： HSU, Windsor, W.
IPC分类号： G06F12/00
CPC分类号： G06F17/30188
摘要： Techniques for providing write-once-read-many (WORM) storage are described herein. According to one embodiment, a range of values is received to set an attribute of a file, where the received range of values is outside of an ordinary range of the attribute in accordance with a file system associated with the file. In addition, a management action is received to be associated with the received range of values of the attribute, where the management action is unrelated to an ordinary action associated with the attribute of the file in accordance with the file system. In response, the received management action is associated with the received range of values of the attribute. Other methods and apparatuses are also described.
摘要翻译：本文描述了提供一次写入（WORM）存储器的技术。根据一个实施例，接收值的范围以根据与文件相关联的文件系统来设置文件的属性，其中所接收的值的范围在属性的普通范围之外。此外，接收管理动作以与属性的值的接收范围相关联，其中管理动作与根据文件系统的与文件的属性相关联的普通动作无关。作为响应，接收到的管理动作与所接收的属性值的范围相关联。还描述了其它方法和装置。

7. 发明申请

WO2007120739A3 EFFICIENT DATA STORAGE USING RESEMBLANCE OF DATA SEGMENTS 审中-公开
标题翻译：使用数据段执行有效的数据存储
公开(公告)号：WO2007120739A3
公开(公告)日：2008-11-06
申请号：PCT/US2007008989
申请日：2007-04-11
申请人： DATA DOMAIN INC
发明人： LI KAI , ZHU MING BENJAMIN , MAHESHWARI UMESH , YANG ZHENG
IPC分类号： G06F17/30
CPC分类号： G06F13/16 , G06F17/30162
摘要： Storage using resemblance of data segments is disclosed. It is determined that a new segment resembles a prior stored segment. The prior stored segment comprises a segment stored previously from any location in an input data stream. A delta between the new segment and the prior stored segment is determined. A representation of the new segment based at least in part on the delta is stored.
摘要翻译：公开了与数据段相似的存储。确定新的段类似于先前存储的段。先前存储的段包括先前从输入数据流中的任何位置存储的段。确定新分段和先前存储分段之间的增量。存储至少部分基于该增量的新段的表示。

8. 发明申请

WO2008127595A1 CLUSTER STORAGE USING DELTA COMPRESSION 审中-公开
标题翻译：使用DELTA压缩的集群存储
公开(公告)号：WO2008127595A1
公开(公告)日：2008-10-23
申请号：PCT/US2008/004575
申请日：2008-04-09
申请人： DATA DOMAIN, INC.
发明人： PATTERSON, R., Hugo , LI, Kai , ZHU, Ming Benjamin , REDDY, Sazzala Venkata , MAHESHWARI, Umesh , LEE, Edward K.
IPC分类号： G06F12/00
CPC分类号： G06F3/0604 , G06F3/0644 , G06F3/0683 , G06F17/30091 , G06F17/30138 , G06F17/3015 , G06F17/30312 , G06F17/30489
摘要： Cluster storage is disclosed. A data stream or a data block is received. The data stream or the data block is broken into segments. For each segment, a cluster node is selected, and in the event that a similar segment to the segment is identified that is already managed by the selected cluster node, a reference to the similar segment and a delta between the similar segment and the segment is caused to be stored on the selected cluster node.
摘要翻译：公开集群存储。接收数据流或数据块。数据流或数据块被分成段。对于每个段，选择集群节点，并且在识别已经由所选择的集群节点管理的与该段相似的段的情况下，对类似段的引用和类似段和段之间的差异是导致存储在所选群集节点上。

9. 发明申请

WO2008127545A1 SUBSEGMENTING FOR EFFICIENT STORAGE, RESEMBLANCE DETERMINATION, AND TRANSMISSION 审中-公开
标题翻译：有效存储，调度决定和传输
公开(公告)号：WO2008127545A1
公开(公告)日：2008-10-23
申请号：PCT/US2008/004103
申请日：2008-03-28
申请人： DATA DOMAIN, INC.
发明人： PATTERSON, R., Hugo , ZHU, Ming, Benjamin
IPC分类号： G06F11/00
CPC分类号： G06F3/0604 , G06F3/0644 , G06F3/0683 , G06F17/30091 , G06F17/30138 , G06F17/3015 , G06F17/30312 , G06F17/30489
摘要： Transmitting or storing subsegments is disclosed. A data stream or a data block is received and broken into a plurality of segments. For at least one segment, the segment is broken into a plurality of subsegments. A previously stored or transmitted segment similar to the at least one segment is identified. A fingerprint is computed for at least one subsegment. And, using the fingerprint for the at least one subsegment, determining whether the at least one subsegment is identical to a subsegment of the previously stored or transmitted segment without directly comparing the content of the at leas one subsegment with the content of the subsegment of the previously stored or transmitted segment.
摘要翻译：公开了发送或存储子段。数据流或数据块被接收并分解成多个段。对于至少一个段，段被分成多个子段。识别与至少一个段相似的先前存储或传输的段。计算至少一个子段的指纹。并且，使用所述指纹用于所述至少一个子段，确定所述至少一个子段是否与先前存储或传输的段的子段相同，而不直接比较所述一个子段的内容与所述子段的内容先前存储或传输的段。

10. 发明申请

WO2007120739A2 EFFICIENT DATA STORAGE USING RESEMBLANCE OF DATA SEGMENTS 审中-公开
标题翻译：使用数据段执行有效的数据存储
公开(公告)号：WO2007120739A2
公开(公告)日：2007-10-25
申请号：PCT/US2007/008989
申请日：2007-04-11
申请人： DATA DOMAIN, INC.
发明人： LI, Kai , ZHU, Ming, Benjamin , MAHESHWARI, Umesh , YANG, Zheng
IPC分类号： G06F13/00
CPC分类号： G06F13/16 , G06F17/30162
摘要： Storage using resemblance of data segments is disclosed. It is determined that a new segment resembles a prior stored segment. The prior stored segment comprises a segment stored previously from any location in an input data stream. A delta between the new segment and the prior stored segment is determined. A representation of the new segment based at least in part on the delta is stored.
摘要翻译：公开了与数据段相似的存储。确定新的段类似于先前存储的段。先前存储的段包括先前从输入数据流中的任何位置存储的段。确定新分段和先前存储分段之间的增量。存储至少部分基于该增量的新段的表示。

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