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11. 发明授权

US07231497B2 Merging write-back and write-through cache policies 有权
标题翻译：合并回写和直写缓存策略
公开(公告)号：US07231497B2
公开(公告)日：2007-06-12
申请号：US10867884
申请日：2004-06-15
申请人： Sanjeev N. Trika , John I. Garney , Michael K. Eschmann
发明人： Sanjeev N. Trika , John I. Garney , Michael K. Eschmann
IPC分类号： G06F12/00
CPC分类号： G06F12/0804 , G06F12/0866
摘要： In one embodiment, the present invention includes a method for writing data to a disk if inserting the data into a cache, such as a disk cache associated with the disk, would cause a threshold of dirty data in the cache to be met or exceeded. Further, in certain embodiments, the cache may store data according to a first cache policy and a second cache policy. A determination of whether to store data according to the first or second policies may be dependent upon an amount of dirty data in the cache, in certain embodiments. In certain embodiments, the cache may include at least one portion reserved for clean data.
摘要翻译：在一个实施例中，本发明包括如果将数据插入诸如与该磁盘相关联的磁盘高速缓存的高速缓存中时将数据写入到磁盘的方法，将导致满足或超过高速缓存中的脏数据的阈值。此外，在某些实施例中，高速缓存可以根据第一高速缓存策略和第二高速缓存策略来存储数据。在某些实施例中，根据第一或第二策略是否存储数据的确定可以取决于高速缓存中的脏数据量。在某些实施例中，高速缓存可以包括为干净数据保留的至少一个部分。

12. 发明申请

US20180096143A1 SECURE CHANGE LOG FOR DRIVE ANALYSIS 审中-公开
公开(公告)号：US20180096143A1
公开(公告)日：2018-04-05
申请号：US15282471
申请日：2016-09-30
申请人： Li Xiaoning , Ravi L. Sahita , Benjamin W. Boyer , Sanjeev N. Trika
发明人： Li Xiaoning , Ravi L. Sahita , Benjamin W. Boyer , Sanjeev N. Trika
IPC分类号： G06F21/56 , G06F21/55 , G06F3/06 , G06F21/44
CPC分类号： G06F21/556 , G06F21/53 , G06F21/78 , G06F21/85
摘要： According to some embodiments an electronic processing system may include a processor, memory coupled to the processor, and security code stored on the memory which when executed by the processor is to provide a trusted execution environment. A storage system may be coupled to the processor from outside of the trusted execution environment. The storage system may include a persistent storage media, a storage controller coupled to the persistent storage media, operating system code stored on the persistent storage media which when executed by the processor is to manage a file system for the electronic processing system, and storage controller code stored on the persistent storage media which when executed by the storage controller is to provide a transport layer between the file system and the persistent storage media. A sideband interface may be coupled between the storage system and the trusted execution environment bypassing the transport layer and the file system.

13. 发明授权

US09037820B2 Optimized context drop for a solid state drive (SSD) 有权
标题翻译：针对固态硬盘（SSD）的优化上下文下降
公开(公告)号：US09037820B2
公开(公告)日：2015-05-19
申请号：US13537377
申请日：2012-06-29
申请人： Prasun Ratn , Suhas Nayak , Sanjeev N. Trika
发明人： Prasun Ratn , Suhas Nayak , Sanjeev N. Trika
IPC分类号： G06F12/00 , G06F11/14 , G06F13/00 , G06F13/28 , G06F12/10
CPC分类号： G06F11/1446 , G06F11/1441 , G06F12/1009 , Y02D10/13
摘要： A mass storage system employs a paging table for memory page redirection and maintains the paging table for power loss recovery (PLR) using a FIFO queue of paging table (L2P) segments to be written to non-volatile memory. The FIFO queue identifies a sequence of the L2P segments in conjunction with sequence number and marking data of the affected segments for recreating the paging table. Upon power failure, a power loss recovery (PLR) mechanism scans for the last segment written based on the FIFO queue. The PLR process recovers unwritten paging table entries by replaying the corresponding changes in the order defined by the sequence numbers. The recovery process continues for each sequence number in the current context, until the L2P information in the paging table is recreated to the point just prior to power loss.
摘要翻译：大容量存储系统采用用于存储器页面重定向的寻呼表，并且使用寻呼表（L2P）段的FIFO队列来维护用于功率损耗恢复的寻呼表（PLR），以将其写入非易失性存储器。 FIFO队列结合序列号识别L2P段的序列，并且识别受影响段的标记数据，以重新创建寻呼表。断电时，功率损耗恢复（PLR）机制扫描基于FIFO队列写入的最后一个段。 PLR进程通过重播按序列号定义的顺序的相应更改来恢复未写入的分页表条目。对于当前上下文中的每个序列号，恢复过程将继续进行，直到寻呼表中的L2P信息被重新创建到掉电之前。

14. 发明申请

US20130304978A1 HIGH-PERFORMANCE STORAGE STRUCTURES AND SYSTEMS FEATURING MULTIPLE NON-VOLATILE MEMORIES 有权
标题翻译：高性能存储结构和系统特征多个非易失性存储器
公开(公告)号：US20130304978A1
公开(公告)日：2013-11-14
申请号：US13997845
申请日：2011-12-21
申请人： Sanjeev N. Trika , Knut S. Grimsrud
发明人： Sanjeev N. Trika , Knut S. Grimsrud
IPC分类号： G06F12/02
CPC分类号： G06F12/0246 , G11C13/0004 , Y02D10/13
摘要： A memory storage system that includes at least a storage controller, a first non-volatile, solid-state memory and a second non-volatile, solid-state memory. The storage controller has an interface to receive commands from a host system. The first non-volatile, solid-state memory device is coupled with the storage controller to at least store data received from the host system. The second non-volatile, solid-state memory is coupled with the storage controller to store context information corresponding to the data stored in the first non-volatile, solid-state memory device.
摘要翻译：一种存储器存储系统，其至少包括存储控制器，第一非易失性固态存储器和第二非易失性固态存储器。存储控制器具有从主机系统接收命令的接口。第一非易失性固态存储器设备与存储控制器耦合以至少存储从主机系统接收的数据。第二非易失性固态存储器与存储控制器耦合以存储对应于存储在第一非易失性固态存储器件中的数据的上下文信息。

15. 发明授权

US08555086B2 Encrypting data on a non-volatile memory 有权
公开(公告)号：US08555086B2
公开(公告)日：2013-10-08
申请号：US12215923
申请日：2008-06-30
申请人： Robert Royer , Sanjeev N. Trika
发明人： Robert Royer , Sanjeev N. Trika
IPC分类号： G06F12/14 , G06F12/10 , G06F13/00
CPC分类号： G06F11/1441 , G06F12/0246 , G06F21/79 , G06F21/81 , G06F2212/7201 , G06F2221/2143
摘要： A non-volatile memory, such as a NAND memory, may be encrypted by reading source blocks, writing to destination blocks, and then erasing the source blocks. As part of the encryption sequence, a power fail recovery procedure, using sequence numbers, is used to reestablish a logical-to-physical translation table for the destination blocks.

16. 发明授权

US08332604B2 Methods to securely bind an encryption key to a storage device 有权
标题翻译：将加密密钥安全地绑定到存储设备的方法
公开(公告)号：US08332604B2
公开(公告)日：2012-12-11
申请号：US12286505
申请日：2008-09-30
申请人： Richard P. Mangold , Debra Hensgen , Sanjeev N. Trika
发明人： Richard P. Mangold , Debra Hensgen , Sanjeev N. Trika
IPC分类号： G06F12/00
CPC分类号： G06F12/02 , G06F12/0866 , G06F12/1408 , G06F21/80 , G06F2221/2107
摘要： Embodiments of methods to securely bind a disk cache encryption key to a cache device are generally described herein. Other embodiments may be described and claimed.
摘要翻译：这里一般地描述将磁盘高速缓存加密密钥安全地绑定到缓存设备的方法的实施例。可以描述和要求保护其他实施例。

17. 发明授权

US08171205B2 Wrap-around sequence numbers for recovering from power-fall in non-volatile memory 有权
标题翻译：用于从非易失性存储器中掉电恢复的包装序列号
公开(公告)号：US08171205B2
公开(公告)日：2012-05-01
申请号：US12151207
申请日：2008-05-05
申请人： Robert Royer , Han H. Chau , Sanjeev N. Trika
发明人： Robert Royer , Han H. Chau , Sanjeev N. Trika
IPC分类号： G06F12/00 , G06F13/00 , G06F13/28 , G11C11/34 , G11C16/04 , G11C7/00 , G11C7/22 , G11C7/10
CPC分类号： G06F12/0246 , G06F2212/7207
摘要： Incrementing sequence numbers in the metadata of non-volatile memory is used in the event of a resume from power fail to determine which data in the memory is current and valid, and which data is not. To reduce the amount of metadata space consumed by these sequence numbers, the numbers are permitted to be small enough to wrap around when the maximum value is reached. Two different techniques are disclosed to keep this wrap around condition from causing ambiguity in the relative values of the sequence numbers.
摘要翻译：在电源故障恢复的情况下，使用非易失性存储器的元数据中的递增序列号，以确定存储器中的哪个数据是当前的和有效的，哪些数据不是。为了减少这些序列号消耗的元数据空间的数量，允许这些数字足够小，以便在达到最大值时循环。公开了两种不同的技术以保持这种环绕条件，从而导致序列号的相对值中的歧义。

18. 发明申请

US20100250834A1 METHOD AND SYSTEM TO PERFORM CACHING BASED ON FILE-LEVEL HEURISTICS 有权
标题翻译：基于文件级别进行缓存的方法和系统
公开(公告)号：US20100250834A1
公开(公告)日：2010-09-30
申请号：US12415595
申请日：2009-03-31
申请人： Sanjeev N. Trika , Amber D. Huffman , James A. Boyd , Frank T. Hady , Glenn J. Hinton , Dale J. Juenemann , Oscar P. Pinto , Scott R. Tetrick , Thomas J. Barnes , Scott E. Burridge
发明人： Sanjeev N. Trika , Amber D. Huffman , James A. Boyd , Frank T. Hady , Glenn J. Hinton , Dale J. Juenemann , Oscar P. Pinto , Scott R. Tetrick , Thomas J. Barnes , Scott E. Burridge
IPC分类号： G06F12/00 , G06F12/08 , G06F12/02
CPC分类号： G06F12/0862 , G06F12/0866 , G06F12/0888 , G06F12/121 , G06F2212/222 , G06F2212/6028
摘要： A method and system to perform caching based at least on one or more file-level heuristics. The caching of a storage medium in a caching device is performed by a cache policy engine. The cache policy engine receives file-level information of input/output access of data of the storage medium and caches or evicts the data of the storage medium in the caching device based on the received file-level information. By utilizing information about the files and file operations associated with the disk sectors or logical block addresses of the storage medium, the cache policy engine can make a better decision on the data selection of the storage medium to be cached in or evicted from the caching device in one embodiment of the invention. Higher cache hit rates can be achieved and the performance of the system utilizing the cache policy engine is improved.
摘要翻译：至少基于一个或多个文件级启发式方法和系统执行缓存。缓存设备中的存储介质的缓存由高速缓存策略引擎执行。高速缓存策略引擎接收存储介质的数据的输入/输出访问的文件级信息，并基于接收到的文件级信息来高速缓存或者将高速缓存设备中的存储介质的数据移出。通过利用关于与存储介质的磁盘扇区或逻辑块地址相关联的文件和文件操作的信息，高速缓存策略引擎可以更好地决定要缓存到缓存设备或从高速缓存设备移出的存储介质的数据选择在本发明的一个实施例中。可以实现更高的缓存命中率，并提高利用缓存策略引擎的系统的性能。

19. 发明申请

US20100250833A1 TECHNIQUES TO PERFORM POWER FAIL-SAFE CACHING WITHOUT ATOMIC METADATA 有权
标题翻译：在没有原子元数据的情况下执行功率失效保护的技术
公开(公告)号：US20100250833A1
公开(公告)日：2010-09-30
申请号：US12414385
申请日：2009-03-30
申请人： Sanjeev N. Trika
发明人： Sanjeev N. Trika
IPC分类号： G06F12/00 , G06F12/08 , G06F12/02 , G06F11/00
CPC分类号： G06F12/0871 , G06F11/1441 , G06F12/0246 , G06F12/0804 , G06F12/0815 , G06F12/0866 , G06F12/0868 , G06F2212/1032 , G06F2212/222 , G06F2212/601
摘要： A method and system to allow power fail-safe write-back or write-through caching of data in a persistent storage device into one or more cache lines of a caching device. No metadata associated with any of the cache lines is written atomically into the caching device when the data in the storage device is cached. As such, specialized cache hardware to allow atomic writing of metadata during the caching of data is not required.
摘要翻译：一种方法和系统，用于将永久存储设备中的数据的电力故障安全写回或直写缓存缓存到高速缓存设备的一个或多个高速缓存行。当存储设备中的数据被缓存时，没有与任何高速缓存行相关联的元数据被原子地写入高速缓存设备。因此，不需要专门的高速缓存硬件来在数据缓存期间允许元数据的原子写入。

20. 发明申请

US20100082898A1 Methods to securely bind an encryption key to a storage device 有权
标题翻译：将加密密钥安全地绑定到存储设备的方法
公开(公告)号：US20100082898A1
公开(公告)日：2010-04-01
申请号：US12286505
申请日：2008-09-30
申请人： Richard P. Mangold , Debra Hensgen , Sanjeev N. Trika
发明人： Richard P. Mangold , Debra Hensgen , Sanjeev N. Trika
IPC分类号： G06F12/14 , G06F12/00 , G06F12/08
CPC分类号： G06F12/02 , G06F12/0866 , G06F12/1408 , G06F21/80 , G06F2221/2107
摘要： Embodiments of methods to securely bind a disk cache encryption key to a cache device are generally described herein. Other embodiments may be described and claimed.
摘要翻译：这里一般地描述将磁盘高速缓存加密密钥安全地绑定到缓存设备的方法的实施例。可以描述和要求保护其他实施例。

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