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1. 发明授权

US08549230B1 Method, system, apparatus, and computer-readable medium for implementing caching in a storage system 有权
标题翻译：用于在存储系统中实现高速缓存的方法，系统，装置和计算机可读介质
公开(公告)号：US08549230B1
公开(公告)日：2013-10-01
申请号：US12498599
申请日：2009-07-07
申请人： Paresh Chatterjee , Srikumar Subramanian , Srinivasa Rao Vempati , Suresh Grandhi
发明人： Paresh Chatterjee , Srikumar Subramanian , Srinivasa Rao Vempati , Suresh Grandhi
IPC分类号： G06F12/00 , G06F13/00 , G06F13/28
CPC分类号： G06F12/0808 , G06F3/0608 , G06F3/061 , G06F3/0631 , G06F3/0665 , G06F3/0689 , G06F9/5011 , G06F12/0866 , G06F12/0871 , G06F2212/6026
摘要： A method, system, apparatus, and computer-readable medium are provided for implementing caching in a data storage system. According to aspects of the invention, a cache module is provided that utilizes cache lines sized according to a snapshot chunk size or an allocation unit size. The cache module utilizes cache header data structures corresponding to cache lines, each of which is assigned a device and logical block access range when active. The active headers are arranged in a set of hash queues. A free queue corresponds to the list of unused cache headers and a dirty queue corresponding to a list of unflushed cache headers. The cache header contains sector-level bitmaps of the cache line, specifying on a per sector granularity the bits that are dirty and valid. Flushing is performed by copying the dirty bitmap into a temporary memory location and flushing the bits set in it, while resetting the dirty bitmap and allowing writes to it. A read-ahead algorithm is used to perform read-ahead operations only in the event of a sequential read.
摘要翻译：提供了一种用于在数据存储系统中实现高速缓存的方法，系统，装置和计算机可读介质。根据本发明的方面，提供一种缓存模块，其利用根据快照块大小或分配单元大小而定尺寸的高速缓存行。高速缓存模块使用与高速缓存行相对应的高速缓存头数据结构，每个高速缓存行在活动时分配一个设备和逻辑块访问范围。活动头部排列在一组散列队列中。空闲队列对应于未使用的缓存头列表和与未刷新缓存头列表相对应的脏队列。高速缓存头包含高速缓存行的扇区级位图，以扇区粒度指定脏和有效的位。通过将脏位图复制到临时存储器位置并刷新其中设置的位，同时重置脏位图并允许写入，执行刷新。只有在顺序读取的情况下，才能使用预读算法执行预读操作。

2. 发明授权

US08055938B1 Performance in virtual tape libraries 有权
标题翻译：虚拟磁带库中的性能
公开(公告)号：US08055938B1
公开(公告)日：2011-11-08
申请号：US11450653
申请日：2006-06-09
申请人： Paresh Chatterjee , Srikumar Subramanian , Suresh Grandhi , Srinivasa Rao Vempati
发明人： Paresh Chatterjee , Srikumar Subramanian , Suresh Grandhi , Srinivasa Rao Vempati
IPC分类号： G06F11/00
CPC分类号： G06F11/1084 , G06F11/1092 , G06F2211/104 , G06F2211/1057 , G06F2211/1059 , G06F2211/108
摘要： A method, system, apparatus, and computer-readable medium are provided for storing data at a virtual tape library (“VTL”) computer or server. According to one method, a VTL computer maintains one or more storage volumes for use by initiators on an array of mass storage devices. Space on each of the volumes is allocated using thin provisioning. The VTL computer may also include a cache memory that is at least the size of a full stripe of the array. Write requests received at the VTL computer are stored in the cache memory until a full stripe of data has been received. Once a full stripe of data has been received, the full stripe of data is written to the array at once. The array utilized by the VTL computer may include a hot spare mass storage device. When a failed mass storage device is identified, only the portions of the failed device that have been previously written are rebuilt onto the hot spare. The array may be maintained using RAID-5. If one of the mass storage devices in the array fails, any subsequent writes directed to the array may be stored using RAID-0.
摘要翻译：提供了一种用于在虚拟磁带库（“VTL”）计算机或服务器上存储数据的方法，系统，装置和计算机可读介质。根据一种方法，VTL计算机维护一个或多个存储卷以供大容量存储设备阵列上的启动器使用。使用精简配置分配每个卷上的空间。 VTL计算机还可以包括至少为阵列的整个条带的大小的高速缓冲存储器。在VTL计算机上接收到的写入请求被存储在高速缓冲存储器中，直到接收到完整的数据条。一旦接收到完整的数据条，数据的完整数据将立即写入阵列。 VTL计算机使用的阵列可以包括热备用大容量存储设备。当识别出故障的大容量存储设备时，仅将先前写入的故障设备的部分重建到热备用设备上。可以使用RAID-5维护阵列。如果阵列中的一个大容量存储设备出现故障，则可以使用RAID-0存储定向到阵列的任何后续写入。

3. 发明授权

US07774569B1 Locking and synchronizing input/output operations in a data storage system 有权
标题翻译：在数据存储系统中锁定和同步输入/输出操作
公开(公告)号：US07774569B1
公开(公告)日：2010-08-10
申请号：US12425158
申请日：2009-04-16
申请人： Paresh Chatterjee , Srinivasa Rao Vempati , Vijayarankan Muthirisavenugopal , Narayanan Balakrishnan
发明人： Paresh Chatterjee , Srinivasa Rao Vempati , Vijayarankan Muthirisavenugopal , Narayanan Balakrishnan
IPC分类号： G06F12/16
CPC分类号： G06F3/0665 , G06F3/0608 , G06F3/0622 , G06F3/0623 , G06F3/0659 , G06F3/0689 , G06F11/1451 , Y10S707/99938
摘要： Technologies are presented herein for synchronization of I/O operations in a data storage system. Multiple reader and writer locks may be acquired by calling processes at two different granularities. Locks may be acquired for an area of storage equivalent to the logical unit of allocation or for a sub-provision area equivalent to a unit of snapshot read-modify-write. Each lock may be represented by a lock data structure that represents the same amount of logical address space as the logical unit of allocation. A request that arrives to the lock data structure may be placed in a lock wait queue until the request can be honored. A round robin technique may be utilized to respond to requests for locks so that one lock does not starve out other locks.
摘要翻译：这里提供了用于数据存储系统中的I / O操作的同步的技术。可以通过以两种不同的粒度调用进程来获取多个读写器锁。可以针对与分配的逻辑单元相当的存储区域或等效于快照读取 - 修改 - 写入单位的子提供区域获取锁定。每个锁可以由表示与分配逻辑单元相同量的逻辑地址空间的锁数据结构来表示。到达锁定数据结构的请求可以被放置在锁定等待队列中，直到可以遵守该请求。可以使用循环技术来响应对锁的请求，使得一个锁不会使其他锁挨饿。

4. 发明授权

US07562200B1 Method, system, apparatus, and computer-readable medium for locking and synchronizing input/output operations in a data storage system 有权
标题翻译：用于在数据存储系统中锁定和同步输入/输出操作的方法，系统，装置和计算机可读介质
公开(公告)号：US07562200B1
公开(公告)日：2009-07-14
申请号：US11417802
申请日：2006-05-04
申请人： Paresh Chatterjee , Srinivasa Rao Vempati , Vijayarankan Muthirisavenugopal , Narayanan Balakrishnan
发明人： Paresh Chatterjee , Srinivasa Rao Vempati , Vijayarankan Muthirisavenugopal , Narayanan Balakrishnan
IPC分类号： G06F12/16
CPC分类号： G06F3/0665 , G06F3/0608 , G06F3/0622 , G06F3/0623 , G06F3/0659 , G06F3/0689 , G06F11/1451 , Y10S707/99938
摘要： A method, system, apparatus, and computer-readable medium are provided for synchronizing I/O operations in a computer system. According to aspects of the invention, multiple reader and writer locks are provided that may be acquired by calling processes at two different granularities. Locks may be acquired for an area of storage equivalent to the logical unit of allocation or for a sub-provision area equivalent to a unit of snapshot read-modify-write. Each lock is represented by a lock data structure that represents the same amount of logical address space as the logical unit of allocation. A request that arrives to the lock data structure is made to wait in a lock wait queue until the request can be honored. Requests that have been honored but that have not yet released the lock are maintained in a dispatch queue. When a writer lock is assigned to a lock request, no other readers or writers may be allocated to it. When a reader lock is assigned to a lock request, the lock may also be given to other readers, but not to a writer. A round robin technique is utilized to respond to requests for locks so that one lock does not starve the other locks.
摘要翻译：提供了一种用于在计算机系统中同步I / O操作的方法，系统，装置和计算机可读介质。根据本发明的方面，提供了可以通过以两种不同粒度调用进程来获取的多个读写器锁。可以针对与分配的逻辑单元相当的存储区域或等效于快照读取 - 修改 - 写入单位的子提供区域获取锁定。每个锁由锁定数据结构表示，该数据结构表示与分配的逻辑单元相同的逻辑地址空间量。到达锁定数据结构的请求被设置为等待一个锁等待队列，直到请求得到遵守。已经兑现尚未释放锁的请求将保留在调度队列中。当写锁定被分配给锁请求时，不得向其分配其他读写器。当读卡器锁定被分配给锁定请求时，也可以将锁定给予其他读取器，但不能给予写入器。利用循环技术来响应锁的请求，使得一个锁不会使其他锁挨饿。

5. 发明授权

US08954383B1 Analyzing mapping objects of file systems 有权
标题翻译：分析文件系统的映射对象
公开(公告)号：US08954383B1
公开(公告)日：2015-02-10
申请号：US13538534
申请日：2012-06-29
申请人： Srinivasa Rao Vempati , Dixitkumar Vishnubhai Patel , Jean-Pierre Bono , Ming Yang , Marshall Hansi Wu
发明人： Srinivasa Rao Vempati , Dixitkumar Vishnubhai Patel , Jean-Pierre Bono , Ming Yang , Marshall Hansi Wu
IPC分类号： G06F17/30
CPC分类号： G06F17/30088
摘要： A method is used in analyzing mapping objects of file systems. Each mapping object of a set of mapping objects of files of a file system is analyzed by iterating over the set of mapping objects. A file is associated with a first mapping object of the set of mapping objects and a snapshot copy of the file is associated with a second mapping object of the set of mapping objects. The second mapping object shares a subset of a set of storage objects associated with the first mapping object. Information for each storage object of the set of storage objects associated with each mapping object of the set of mapping objects is stored. Based on the stored information, each storage object of the set of storage objects associated with each mapping object of the set of mapping objects is processed.
摘要翻译：一种方法用于分析文件系统的映射对象。通过迭代映射对象集来分析文件系统的文件的一组映射对象的每个映射对象。文件与该组映射对象的第一映射对象相关联，并且该文件的快照副本与该组映射对象的第二映射对象相关联。第二映射对象共享与第一映射对象相关联的一组存储对象的子集。存储与映射对象集合中的每个映射对象相关联的存储对象集合中的每个存储对象的信息。基于存储的信息，处理与该组映射对象的每个映射对象相关联的该组存储对象的每个存储对象。

6. 发明授权

US08612382B1 Recovering files in data storage systems 有权
标题翻译：在数据存储系统中恢复文件
公开(公告)号：US08612382B1
公开(公告)日：2013-12-17
申请号：US13538754
申请日：2012-06-29
申请人： Dixitkumar Vishnubhai Patel , Srinivasa Rao Vempati , Jean Pierre Bono , James Jiaming Pan
发明人： Dixitkumar Vishnubhai Patel , Srinivasa Rao Vempati , Jean Pierre Bono , James Jiaming Pan
IPC分类号： G06F17/30
CPC分类号： G06F11/0793 , G06F11/0727 , G06F11/1435 , G06F2201/84
摘要： A method is used in recovering files in data storage systems. A set of file system blocks of a file of a file system is identified. The set of file system blocks are associated with a portion of an inode of the file of the file system. Mapping information associated with the portion of the inode is missing references to the set of file system blocks. Metadata of each file system block of the set of file system blocks is evaluated. Based on the evaluation, the portion of the inode of the file is recovered by updating mapping information associated with the portion of the inode.
摘要翻译：一种方法用于恢复数据存储系统中的文件。识别文件系统文件的一组文件系统块。文件系统块的集合与文件系统的文件的inode的一部分相关联。与inode部分相关联的映射信息缺少对文件系统块集的引用。评估文件系统块集合中每个文件系统块的元数据。基于评估，通过更新与inode的部分相关联的映射信息来恢复文件的inode的部分。

7. 发明授权

US09020903B1 Recovering duplicate blocks in file systems 有权
标题翻译：在文件系统中恢复重复块
公开(公告)号：US09020903B1
公开(公告)日：2015-04-28
申请号：US13538965
申请日：2012-06-29
申请人： Srinivasa Rao Vempati , Dixitkumar Vishnubhai Patel , Jean-Pierre Bono , Marshall Hansi Wu
发明人： Srinivasa Rao Vempati , Dixitkumar Vishnubhai Patel , Jean-Pierre Bono , Marshall Hansi Wu
IPC分类号： G06F17/00 , G06F12/12
CPC分类号： G06F12/121 , G06F3/0619 , G06F3/0641 , G06F3/0643 , G06F3/067
摘要： A method is used in recovering duplicate blocks in file systems. A duplicate file system block is detected in a file system. The duplicate file system block is referred by a first inode associated with a first file of the file system and a second inode associated with a second file of the file system. Metadata of the duplicate file system block is evaluated. Based on the evaluation, a set of inodes in the file system is determined. Each inode of the set of inodes refer to the duplicate file system block. Based on the determination, the set of inodes is updated.
摘要翻译：一种方法用于恢复文件系统中的重复块。在文件系统中检测到重复的文件系统块。重复文件系统块由与文件系统的第一文件相关联的第一个inode和与文件系统的第二个文件相关联的第二个inode来引用。评估重复文件系统块的元数据。基于评估，确定文件系统中的一组inode。一组inode的每个inode都是指重复文件系统块。根据确定，更新inode的集合。

8. 发明申请

US20120126419A1 Substrate Arrangement and a Method of Manufacturing a Substrate Arrangement 审中-公开
标题翻译：基板布置和基板布置方法
公开(公告)号：US20120126419A1
公开(公告)日：2012-05-24
申请号：US13055525
申请日：2008-07-24
申请人： Vaidyanathan Kripesh , Navas Khan Orattikalandar , Srinivasa Rao Vempati , Yak Long Samuel Lim , Yee Mong Khoo , Chee Houe Khong , Xiao Wu Zhang , Tai Chong Chai , Hon-Shing John Lau
发明人： Vaidyanathan Kripesh , Navas Khan Orattikalandar , Srinivasa Rao Vempati , Yak Long Samuel Lim , Yee Mong Khoo , Chee Houe Khong , Xiao Wu Zhang , Tai Chong Chai , Hon-Shing John Lau
IPC分类号： H01L23/522 , H01L21/768
CPC分类号： H01L29/0657 , H01L24/11 , H01L24/13 , H01L24/14 , H01L24/16 , H01L24/81 , H01L25/0657 , H01L2224/0554 , H01L2224/05548 , H01L2224/05573 , H01L2224/05647 , H01L2224/1132 , H01L2224/1146 , H01L2224/1147 , H01L2224/11472 , H01L2224/11849 , H01L2224/11902 , H01L2224/13009 , H01L2224/13025 , H01L2224/131 , H01L2224/13147 , H01L2224/1403 , H01L2224/14051 , H01L2224/14181 , H01L2224/14505 , H01L2224/161 , H01L2224/16145 , H01L2224/16146 , H01L2224/16225 , H01L2224/1624 , H01L2224/8114 , H01L2224/81141 , H01L2225/06513 , H01L2225/06517 , H01L2225/06541 , H01L2225/06555 , H01L2924/00014 , H01L2924/01006 , H01L2924/01011 , H01L2924/01022 , H01L2924/01029 , H01L2924/01032 , H01L2924/01033 , H01L2924/01059 , H01L2924/01078 , H01L2924/01079 , H01L2924/01082 , H01L2924/014 , H01L2924/10329 , H01L2924/14 , H01L2924/15787 , H01L2924/3025 , H01L2924/35 , H01L2924/01014 , H01L2924/00 , H01L2224/05599 , H01L2224/0555 , H01L2224/0556
摘要： According to one embodiment of the present invention, a substrate arrangement is provided. The substrate arrangement includes a first substrate; a second substrate positioned above the first substrate, the second substrate comprising a first through hole; a third substrate positioned above the second substrate, the third substrate comprising a second through hole; a first electrically conductive interconnect pillar positioned on the first substrate and extending from the first substrate through the first through hole to electrically contact the third substrate; and a second electrically conductive interconnect pillar positioned on the second substrate and extending from the second substrate through the second through hole. A method of manufacturing a substrate arrangement is also provided.
摘要翻译：根据本发明的一个实施例，提供了一种衬底布置。衬底布置包括第一衬底; 位于所述第一基板上方的第二基板，所述第二基板包括第一通孔; 位于所述第二基板上方的第三基板，所述第三基板包括第二通孔; 位于所述第一基板上并且从所述第一基板延伸穿过所述第一通孔的第一导电互连柱，以与所述第三基板电接触; 以及第二导电互连柱，其定位在所述第二基板上并且从所述第二基板延伸穿过所述第二通孔。还提供了一种制造衬底布置的方法。

9. 发明授权

US09003227B1 Recovering file system blocks of file systems 有权
标题翻译：恢复文件系统的文件系统块
公开(公告)号：US09003227B1
公开(公告)日：2015-04-07
申请号：US13539084
申请日：2012-06-29
申请人： Dixitkumar Vishnubhai Patel , Srinivasa Rao Vempati , Jean-Pierre Bono , Luogeng Dai
发明人： Dixitkumar Vishnubhai Patel , Srinivasa Rao Vempati , Jean-Pierre Bono , Luogeng Dai
IPC分类号： G06F11/00 , G06F11/16
CPC分类号： G06F11/165 , G06F11/1435
摘要： A method is used in recovering file system blocks of file systems. A first read error is encountered upon reading a file system block of a file system. The file system block includes a first set of chunks. A second read error is encountered upon reading a duplicate copy of the file system block. The duplicate copy of the file system block includes a second set of chunks. Each chunk of the first and second sets of chunks is evaluated. Based on the evaluation, the file system block is recovered.
摘要翻译：一种方法用于恢复文件系统的文件系统块。读取文件系统的文件系统块时会遇到第一个读取错误。文件系统块包括第一组块。读取文件系统块的副本时会遇到第二个读取错误。文件系统块的副本包括第二组块。评估第一组和第二组块的每个块。基于评估，文件系统块被恢复。

10. 发明申请

US20110316117A1 DIE PACKAGE AND A METHOD FOR MANUFACTURING THE DIE PACKAGE 审中-公开
标题翻译： DIE包装和制造DIE包装的方法
公开(公告)号：US20110316117A1
公开(公告)日：2011-12-29
申请号：US12673503
申请日：2008-08-12
申请人： Vaidyanathan Kripesh , Navas Khan Oratti Kalandar , Srinivasa Rao Vempati , Aditya Kumar , Soon Wee Ho , Yak Long Samuel Lim , Gaurav Sharma , Wen Sheng Vincent Lee
发明人： Vaidyanathan Kripesh , Navas Khan Oratti Kalandar , Srinivasa Rao Vempati , Aditya Kumar , Soon Wee Ho , Yak Long Samuel Lim , Gaurav Sharma , Wen Sheng Vincent Lee
IPC分类号： H01L29/02 , H01L23/498 , H01L23/552 , H01L21/50 , H01L23/48
CPC分类号： H01L21/02255 , H01L21/02118 , H01L21/02126 , H01L21/02164 , H01L21/02167 , H01L21/0217 , H01L21/022 , H01L21/02271 , H01L21/02282 , H01L21/3121 , H01L21/316 , H01L21/76807 , H01L21/76828 , H01L21/76835 , H01L21/76897 , H01L21/823425 , H01L21/823475 , H01L21/823481 , H01L21/823871 , H01L21/823878 , H01L23/53295 , H01L24/19 , H01L24/96 , H01L2224/32145 , H01L2924/13091 , H01L2924/14 , H01L2924/1461 , H01L2924/181 , H01L2924/19105 , H01L2924/3511 , H01L2924/00
摘要： A die package and a method for manufacturing the die package are provided. The die package includes a second die arranged above a first die, the first die comprising an interconnect region on a surface facing the second die, wherein the second die is arranged laterally next to the interconnect region of the first die; a first package-internal free-standing interconnect structure disposed above the interconnect region of the first die; a second package-internal free-standing interconnect structure disposed above an interconnect region of the second die, the interconnect region of the second die being on a surface of the second die facing away from the first die; and package material formed partially around the first package-internal free-standing interconnect structure and the second package-internal free-standing interconnect structure such that a connecting portion of the first package-internal free-standing interconnect structure and a connecting portion of the second package-internal free-standing interconnect structure remains uncovered to be electrically connected to a package-external interconnect structure.
摘要翻译：提供了一种管芯封装和用于制造管芯封装的方法。所述管芯封装包括布置在第一管芯上方的第二管芯，所述第一管芯包括在面向所述第二管芯的表面上的互连区域，其中所述第二管芯横向布置在所述第一管芯的互连区域旁边; 设置在所述第一管芯的所述互连区域上方的第一封装 - 内部独立互连结构; 设置在所述第二管芯的互连区域上方的第二封装内部独立互连结构，所述第二管芯的互连区域位于所述第二管芯的远离所述第一管芯的表面上; 以及部分地围绕第一包装内部独立互连结构形成的包装材料和第二包装内部独立互连结构，使得第一包装内部独立互连结构的连接部分和第二包装内部独立互连结构的连接部分封装内部独立的互连结构保持未覆盖以电连接到封装 - 外部互连结构。

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