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1. 发明授权

US08756396B1 Conversion of in-memory data representations 有权
标题翻译：内存中数据表示的转换
公开(公告)号：US08756396B1
公开(公告)日：2014-06-17
申请号：US13026572
申请日：2011-02-14
申请人： Arvind Pruthi , Shailesh Shiwalkar
发明人： Arvind Pruthi , Shailesh Shiwalkar
IPC分类号： G06F12/00 , G06F17/30 , G06F12/06
CPC分类号： G06F12/0646 , G06F3/0608 , G06F3/061 , G06F3/0661 , G06F3/0689
摘要： Systems, methods, and other embodiments associated with managing memory are described. According to one embodiment, an apparatus includes a converter that dynamically converts a structure of a data representation stored in a memory, where the structure is selectively converted between a sparse format and a non-sparse format.
摘要翻译：描述了与管理存储器相关联的系统，方法和其他实施例。根据一个实施例，一种装置包括：转换器，其动态地转换存储在存储器中的数据表示的结构，其中结构在稀疏格式和非稀疏格式之间选择性地转换。

2. 发明申请

US20110276746A1 CACHING STORAGE ADAPTER ARCHITECTURE 审中-公开
标题翻译：缓存存储适配器架构
公开(公告)号：US20110276746A1
公开(公告)日：2011-11-10
申请号：US13101534
申请日：2011-05-05
申请人： Arvind Pruthi , Sandeep Karmarkar , Kanishk Rastogi , Shailesh Shiwalkar
发明人： Arvind Pruthi , Sandeep Karmarkar , Kanishk Rastogi , Shailesh Shiwalkar
IPC分类号： G06F12/08
CPC分类号： G06F12/0866 , G06F2212/217
摘要： An interface adapter includes a storage module including non-volatile random access memory (RAM), and a lookup module. The storage module is configured to store metadata in the non-volatile RAM. The metadata identifies data from an external storage device cached in a solid-state storage device. The lookup module is configured to receive a read request. The lookup module is further configured to, based on the metadata and in response to the read request, selectively provide cached data from the solid-state storage device or provide second data retrieved from the external storage device.
摘要翻译：接口适配器包括包括非易失性随机存取存储器（RAM）的存储模块和查找模块。存储模块被配置为将元数据存储在非易失性RAM中。元数据识别来自在固态存储设备中缓存的外部存储设备的数据。查找模块被配置为接收读取请求。查找模块还被配置为基于元数据并且响应于读取请求，选择性地从固态存储设备提供缓存的数据或提供从外部存储设备检索的第二数据。

3. 发明授权

US08583893B2 Metadata management for virtual volumes 有权
标题翻译：虚拟卷的元数据管理
公开(公告)号：US08583893B2
公开(公告)日：2013-11-12
申请号：US12788097
申请日：2010-05-26
申请人： Arvind Pruthi , Shailesh P. Parulekar , Mayur Shardul
发明人： Arvind Pruthi , Shailesh P. Parulekar , Mayur Shardul
IPC分类号： G06F12/00
CPC分类号： G06F12/08 , G06F3/0611 , G06F3/0665 , G06F3/0689
摘要： Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, manage metadata for virtual volumes. In some implementations, a method and system include defining multiple metadata blocks in a persistent storage, including information that links a virtual address space to the storage system, where the defining includes, for at least one of the multiple metadata blocks, determining multiple output addresses corresponding to the storage system, and writing the multiple output addresses and an identifier corresponding to the multiple metadata blocks in a metadata block in the persistent storage. In some implementations, a method and system include reading the multiple metadata blocks into the memory from the persistent storage, including identifying the metadata block based on the identifier; receiving an input address of the virtual address space; and obtaining a corresponding output address to the storage system using the multiple metadata blocks in the memory.
摘要翻译：方法，系统和装置，包括在计算机存储介质上编码的计算机程序，管理虚拟卷的元数据。在一些实施方式中，方法和系统包括在永久存储器中定义多个元数据块，包括将虚拟地址空间链接到存储系统的信息，其中定义包括多个元数据块中的至少一个，确定多个输出地址对应于存储系统，并将多个输出地址和与多个元数据块相对应的标识符写入永久存储器中的元数据块中。在一些实现中，方法和系统包括从持久存储器读取多个元数据块到存储器中，包括基于标识符识别元数据块; 接收虚拟地址空间的输入地址; 以及使用存储器中的多个元数据块来向存储系统获得相应的输出地址。

4. 发明授权

US08219887B2 Parallel Reed-Solomon RAID (RS-RAID) architecture, device, and method 有权
标题翻译：并行Reed-Solomon RAID（RS-RAID）架构，设备和方法
公开(公告)号：US08219887B2
公开(公告)日：2012-07-10
申请号：US12274874
申请日：2008-11-20
申请人： Arvind Pruthi
发明人： Arvind Pruthi
IPC分类号： G11C29/00
CPC分类号： G06F11/1076 , G06F2211/1028 , G06F2211/1054 , G06F2211/1057
摘要： The parallel RS-RAID data storage architecture can aggregate that data and checksums within each cluster into intermediate or partial sums that are transferred or distributed to other clusters. The use of intermediate data symbols, intermediate checksum symbols, cluster configuration information on the assignment of data storage devices to clusters and the operational status of data storage devices, and the like, can reduce the computational burden and latency for the error correction calculations while increasing the scalability and throughput of the parallel RS-RAID distributed data storage architecture.
摘要翻译：并行RS-RAID数据存储体系结构可以将每个集群内的数据和校验和集合转换成分散到其他集群的中间或部分和。使用中间数据符号，中间校验和符号，将数据存储设备分配给集群的集群配置信息和数据存储设备的操作状态等可以减少纠错计算的计算负担和等待时间，同时增加并行RS-RAID分布式数据存储架构的可扩展性和吞吐量。

5. 发明申请

US20100185806A1 CACHING SYSTEMS AND METHODS USING A SOLID STATE DISK 审中-公开
标题翻译：使用固态盘的缓存系统和方法
公开(公告)号：US20100185806A1
公开(公告)日：2010-07-22
申请号：US12685909
申请日：2010-01-12
申请人： Arvind Pruthi , Ram Kishore Johri
发明人： Arvind Pruthi , Ram Kishore Johri
IPC分类号： G06F12/00 , G06F12/02 , G06F12/10
CPC分类号： G06F12/0246 , G06F12/0866 , G06F2212/214
摘要： A system includes a control module, a location description module, and a page invalidation module. The control module is configured to write data received from a host to a storage medium, read data from the storage medium, and cache data from at least one of the host and the storage medium in a flash memory. The location description module is configured to map one of a valid and invalid state to a physical location of a subset of data in the flash memory. The page invalidation module is configured to receive a command from one of the host and the control module that includes an address corresponding to the subset and an instruction to set a state of the physical location to the invalid state. The page invalidation module is further configured to set the state of the physical location to the invalid state in response to the command.
摘要翻译：系统包括控制模块，位置描述模块和页面无效模块。控制模块被配置为将从主机接收的数据写入存储介质，从存储介质读取数据，以及将来自主机和存储介质中的至少一个的数据高速缓存在闪速存储器中。位置描述模块被配置为将有效和无效状态中的一个映射到闪速存储器中的数据子集的物理位置。页面无效模块被配置为从主机和控制模块之一接收包括与该子集对应的地址的命令和将物理位置的状态设置为无效状态的指令。页面无效模块还被配置为响应于该命令将物理位置的状态设置为无效状态。

6. 发明授权

US09043560B2 Distributed cache coherency protocol 有权
标题翻译：分布式缓存一致性协议
公开(公告)号：US09043560B2
公开(公告)日：2015-05-26
申请号：US13242621
申请日：2011-09-23
申请人： Arvind Pruthi
发明人： Arvind Pruthi
IPC分类号： G06F12/08
CPC分类号： G06F12/0888 , G06F12/0831 , G06F12/0842
摘要： Systems, methods, and other embodiments associated with a distributed cache coherency protocol are described. According to one embodiment, a method includes receiving a request from a requester for access to one or more memory blocks in a block storage device that is shared by at least two physical computing machines and determining if a caching right to any of the one or more memory blocks has been granted to a different requester. If the caching right has not been granted to the different requester, access is granted to the one or more memory blocks to the requester.
摘要翻译：描述了与分布式高速缓存一致性协议相关联的系统，方法和其他实施例。根据一个实施例，一种方法包括从请求者接收对由至少两个物理计算机共享的块存储设备中的一个或多个存储器块的访问的请求，以及确定是否对所述一个或多个内存块已被授予不同的请求者。如果尚未向不同的请求者授予缓存权限，则向访问请求者授予一个或多个内存块的访问权限。

7. 发明授权

US08566534B1 Low overhead space management for large caches 有权
标题翻译：针对大型高速缓存的低架空空间管理
公开(公告)号：US08566534B1
公开(公告)日：2013-10-22
申请号：US13078359
申请日：2011-04-01
申请人： Arvind Pruthi , Sandeep Karmarkar
发明人： Arvind Pruthi , Sandeep Karmarkar
IPC分类号： G06F12/00
CPC分类号： G06F12/023 , G06F12/0871 , G06F12/0895
摘要： Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, to manage an address space for large caches are described. In some implementations, a method includes receiving data to be cached in a cache address space associated with a cache memory. The cache address space includes two or more designated portions of the cache address space, such that each of the two or more designated portions has an associated minimum amount of data allowed to be cached therein. Additionally, the respective minimum amounts of the two or more designated portions are different from each other. The method also includes selecting a cache address for caching the received data from one of the two or more designated portions of the cache address space that has an associated minimum amount of data allowed to be cached therein being less than the received data. Further, the method includes caching the received data at the selected cache address, and accessing at least a subset of the data cached at the selected cache address.
摘要翻译：描述了包括在计算机存储介质上编码的计算机程序来管理用于大型高速缓存的地址空间的方法，系统和装置。在一些实现中，一种方法包括接收要缓存在与高速缓存存储器相关联的高速缓存地址空间中的数据。高速缓存地址空间包括高速缓存地址空间的两个或多个指定部分，使得两个或多个指定部分中的每一个具有允许缓存其中的相关联的最小数据量。另外，两个以上指定部分的各自的最小量彼此不同。该方法还包括从高速缓存地址空间的两个或多个指定部分之一中选择一个缓存接收到的数据的高速缓存地址，该高速缓存地址空间的相关联的最小数据量允许被缓存在其中，该数据量小于接收到的数据。此外，该方法包括将所接收的数据缓存在所选择的高速缓存地址处，以及访问在所选择的高速缓存地址处缓存的数据的至少一个子集。

8. 发明申请

US20110208919A1 CACHING BASED ON SPATIAL DISTRIBUTION OF ACCESSES TO DATA STORAGE DEVICES 有权
标题翻译：基于空间分配访问数据存储设备的缓存
公开(公告)号：US20110208919A1
公开(公告)日：2011-08-25
申请号：US13033569
申请日：2011-02-23
申请人： Arvind Pruthi
发明人： Arvind Pruthi
IPC分类号： G06F12/08
CPC分类号： G06F12/0862 , G06F12/0866 , G06F2212/6026
摘要： Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for quantifying a spatial distribution of accesses to storage systems and for determining spatial locality of references to storage addresses in the storage systems, are described. In one aspect, a method includes determining a measure of spatial distribution of accesses to a data storage system based on multiple distinct groups of accesses to the data storage system, and adjusting a caching policy used for the data storage system based on the determined measure of spatial distribution.
摘要翻译：描述了包括在计算机存储介质上编码的计算机程序的方法，系统和装置，用于量化对存储系统的访问的空间分布以及用于确定对存储系统中存储地址的引用的空间位置。一方面，一种方法包括：基于对数据存储系统的多个不同访问组来确定对数据存储系统的访问的空间分布的度量，以及基于所确定的测量值来调整用于数据存储系统的缓存策略空间分布。

9. 发明授权

US09128853B1 Lookup structure for large block cache 有权
标题翻译：大块缓存的查找结构
公开(公告)号：US09128853B1
公开(公告)日：2015-09-08
申请号：US13045690
申请日：2011-03-11
申请人： Arvind Pruthi , Sandeep Karmarkar , Kanishk Rastogi
发明人： Arvind Pruthi , Sandeep Karmarkar , Kanishk Rastogi
IPC分类号： G06F12/10 , G06F12/08
CPC分类号： G06F12/0864 , G06F12/0871
摘要： Systems, methods, and other embodiments associated with a lookup structure for a large block cache are described. According to one embodiment, at least two blocks of data are stored in a cache. A lookup entry is constructed that describes the at least two blocks of data. The lookup entry includes block specific information that describes individual blocks of the at least two blocks of data. The lookup entry is stored in the lookup structure.
摘要翻译：描述与大块高速缓存的查找结构相关联的系统，方法和其他实施例。根据一个实施例，至少两个数据块被存储在高速缓存中。构建描述至少两个数据块的查找条目。查找条目包括描述至少两个数据块的各个块的块特定信息。查找条目存储在查找结构中。

10. 发明授权

US08793290B1 Metadata management for pools of storage disks 有权
标题翻译：存储磁盘池的元数据管理
公开(公告)号：US08793290B1
公开(公告)日：2014-07-29
申请号：US13034483
申请日：2011-02-24
申请人： Arvind Pruthi , Shailesh P. Parulekar , Mayur Shardul
发明人： Arvind Pruthi , Shailesh P. Parulekar , Mayur Shardul
IPC分类号： G06F12/00 , G06F17/30
CPC分类号： G06F3/067 , G06F3/0604 , G06F3/0644 , G06F3/0665
摘要： Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for managing metadata for pools of storage disks, are described. In some implementations, a system includes a processor, a memory and a storage system. The storage system contains a storage pool including multiple storage devices. Further, the storage system is configured to store in persistent storage associated with the storage pool a bitmap that is configured to indicate whether metadata blocks corresponding to one or more virtual volumes associated with the storage pool are free or occupied. In addition, the processor is configured to perform operations including accessing at least portions of the bitmap, and managing, based on information from the accessed portions, at least some of the metadata blocks stored in the persistent storage.
摘要翻译：描述了用于管理存储盘池的元数据的方法，系统和装置，包括在计算机存储介质上编码的计算机程序。在一些实现中，系统包括处理器，存储器和存储系统。存储系统包含一个包含多个存储设备的存储池。此外，存储系统被配置为在与存储池相关联的持久存储器中存储被配置为指示与存储池相关联的一个或多个虚拟卷相对应的元数据块是空闲还是占用的位图。此外，处理器被配置为执行操作，包括访问位图的至少一部分，并且基于来自所访问部分的信息，管理存储在持久存储器中的至少一些元数据块。

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