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1. 发明授权

US08892905B2 Method and apparatus for performing selective encryption/decryption in a data storage system 有权
标题翻译：用于在数据存储系统中执行选择性加密/解密的方法和装置
公开(公告)号：US08892905B2
公开(公告)日：2014-11-18
申请号：US11726428
申请日：2007-03-21
申请人： Adam Y. Lee , Varun Malhotra , Daniel ManHung Wong , Tirthankar Lahiri , Kiran Goyal , Juan R. Loaiza , Paul Youn
发明人： Adam Y. Lee , Varun Malhotra , Daniel ManHung Wong , Tirthankar Lahiri , Kiran Goyal , Juan R. Loaiza , Paul Youn
IPC分类号： G06Q30/02 , H04L9/08
CPC分类号： H04L9/0894
摘要： One embodiment of the present invention provides a system for performing selective encryption/decryption in a data storage system. During operation, the system receives a data block from a storage medium at an input/output layer, wherein the input/output layer serves as an interface between the storage medium and a buffer cache. Next, the system determines whether the data block is an encrypted data block. If not, the system stores the data block in the buffer cache. Otherwise, if the data block is an encrypted data block, the system retrieves a storage-key, wherein the storage-key is associated with a subset of storage, which is associated with the encrypted data block. Using the storage-key, the system then decrypts the encrypted data block to produce a decrypted data block. Finally, the system stores the decrypted data block in the buffer cache, wherein the data block remains encrypted in the storage medium.
摘要翻译：本发明的一个实施例提供一种用于在数据存储系统中执行选择性加密/解密的系统。在操作期间，系统在输入/输出层从存储介质接收数据块，其中输入/输出层用作存储介质和缓冲器高速缓存之间的接口。接下来，系统确定数据块是否是加密数据块。如果没有，系统将数据块存储在缓冲区高速缓存中。否则，如果数据块是加密数据块，则系统检索存储密钥，其中存储密钥与与加密数据块相关联的存储子集相关联。使用存储密钥，系统然后解密加密的数据块以产生解密的数据块。最后，系统将解密的数据块存储在缓冲器高速缓存中，其中数据块在存储介质中保持加密。

2. 发明申请

US20130326152A1 Rapid Recovery From Loss Of Storage Device Cache 有权
标题翻译：快速恢复存储设备缓存丢失
公开(公告)号：US20130326152A1
公开(公告)日：2013-12-05
申请号：US13485557
申请日：2012-05-31
申请人： Juan R. Loaiza , KOTHANDA UMAMAGESWARAN , BORIS ERLIKHMAN , DAVID FRIEDMAN , JIA SHI , ZUOYU TAO , ALEX TSUKERMAN
发明人： Juan R. Loaiza , KOTHANDA UMAMAGESWARAN , BORIS ERLIKHMAN , DAVID FRIEDMAN , JIA SHI , ZUOYU TAO , ALEX TSUKERMAN
IPC分类号： G06F12/08
CPC分类号： G06F11/2082 , G06F3/0629 , G06F12/00 , G06F12/08 , G06F12/0802
摘要： Dirty data in a storage device is made current through rapid re-silvering, which uses a mirrored and up-to-date version of the dirty data from another storage device to recover the data. Because under rapid re-silvering cache metadata in volatile memory survives the failure of the cache, the cache metadata is used to determine which subset of data from the other storage device needs to be copied to the storage device being re-silvered. During re-silvering, cache metadata is used to determine which I/O requests from clients are requests for data that is not stale.
摘要翻译：存储设备中的脏数据通过快速重新刷新而成为最新版本，其使用来自另一存储设备的镜像和最新版本的脏数据来恢复数据。因为在快速重新刷新缓存中，缓存中的元数据可以在高速缓存的故障中幸存下来，所以使用高速缓存元数据来确定来自其他存储设备的哪个数据子集需要被复制到被重新映射的存储设备。在重新镀银期间，使用缓存元数据来确定来自客户端的哪些I / O请求是不过时的数据请求。

3. 发明授权

US08521923B2 Storage-side storage request management 有权
标题翻译：存储端存储请求管理
公开(公告)号：US08521923B2
公开(公告)日：2013-08-27
申请号：US13418150
申请日：2012-03-12
申请人： Sue K. Lee , Vivekananda C. Kolla , Akshay D. Shah , Sumanta Chatterjee , Margaret Susairaj , Juan R. Loaiza , Alexander Tsukerman , Sridhar Subramaniam
发明人： Sue K. Lee , Vivekananda C. Kolla , Akshay D. Shah , Sumanta Chatterjee , Margaret Susairaj , Juan R. Loaiza , Alexander Tsukerman , Sridhar Subramaniam
IPC分类号： G06F3/00
CPC分类号： G06F17/30498 , G06F3/0611 , G06F3/0659 , G06F3/067 , G06F12/00 , G06F17/3033 , G06F17/30492
摘要： Techniques are provided for managing, within a storage system, the sequence in which I/O requests are processed by the storage system based, at least in part, on one or more logical characteristics of the I/O requests. The logical characteristics may include, for example, the identity of the user for whom the I/O request was submitted, the service that submitted the I/O request, the database targeted by the I/O request, an indication of a consumer group to which the I/O request maps, the reason why the I/O request was issued, a priority category of the I/O request, etc. Techniques are also provided for automatically establishing a scheduling policy within a storage system, and for dynamically changing the scheduling policy in response to changes in workload.
摘要翻译：提供了技术，用于至少部分地基于I / O请求的一个或多个逻辑特性在存储系统内管理由存储系统处理I / O请求的序列。逻辑特征可以包括例如提交I / O请求的用户的身份，提交I / O请求的服务，I / O请求所针对的数据库，消费者组的指示 I / O请求映射到哪里，发出I / O请求的原因，I / O请求的优先类别等。还提供了用于在存储系统内自动建立调度策略，并且为了动态地根据工作负载的变化改变调度策略。

4. 发明申请

US20120173774A1 STORAGE-SIDE STORAGE REQUEST MANAGEMENT 有权
标题翻译：存储存储请求管理
公开(公告)号：US20120173774A1
公开(公告)日：2012-07-05
申请号：US13418150
申请日：2012-03-12
申请人： Sue K. Lee , Vivekananda C. Kolla , Akshav D. Shah , Sumanta Chatterjee , Margaret Susairaj , Juan R. Loaiza , Alexander Tsukerman , Sridhar Subramaniam
发明人： Sue K. Lee , Vivekananda C. Kolla , Akshav D. Shah , Sumanta Chatterjee , Margaret Susairaj , Juan R. Loaiza , Alexander Tsukerman , Sridhar Subramaniam
IPC分类号： G06F3/00
CPC分类号： G06F17/30498 , G06F3/0611 , G06F3/0659 , G06F3/067 , G06F12/00 , G06F17/3033 , G06F17/30492
摘要： Techniques are provided for managing, within a storage system, the sequence in which I/O requests are processed by the storage system based, at least in part, on one or more logical characteristics of the I/O requests. The logical characteristics may include, for example, the identity of the user for whom the I/O request was submitted, the service that submitted the I/O request, the database targeted by the I/O request, an indication of a consumer group to which the I/O request maps, the reason why the I/O request was issued, a priority category of the I/O request, etc. Techniques are also provided for automatically establishing a scheduling policy within a storage system, and for dynamically changing the scheduling policy in response to changes in workload.
摘要翻译：提供了技术，用于至少部分地基于I / O请求的一个或多个逻辑特性在存储系统内管理由存储系统处理I / O请求的序列。逻辑特征可以包括例如提交I / O请求的用户的身份，提交I / O请求的服务，I / O请求所针对的数据库，消费者组的指示 I / O请求映射到哪里，发出I / O请求的原因，I / O请求的优先类别等。还提供了用于在存储系统内自动建立调度策略，并且为了动态地根据工作负载的变化改变调度策略。

5. 发明授权

US08145806B2 Storage-side storage request management 有权
标题翻译：存储端存储请求管理
公开(公告)号：US08145806B2
公开(公告)日：2012-03-27
申请号：US12563073
申请日：2009-09-18
申请人： Sue K. Lee , Vivekananda C. Kolla , Akshay D. Shah , Sumanta Chatterjee , Margaret Susairaj , Juan R. Loaiza , Alexander Tsukerman , Sridhar Subramaniam
发明人： Sue K. Lee , Vivekananda C. Kolla , Akshay D. Shah , Sumanta Chatterjee , Margaret Susairaj , Juan R. Loaiza , Alexander Tsukerman , Sridhar Subramaniam
IPC分类号： G06F3/00
CPC分类号： G06F17/30498 , G06F3/0611 , G06F3/0659 , G06F3/067 , G06F12/00 , G06F17/3033 , G06F17/30492
摘要： Techniques are provided for managing, within a storage system, the sequence in which I/O requests are processed by the storage system based, at least in part, on a one or more logical characteristics of the I/O requests. The logical characteristics may include, for example, the identity of the user for whom the I/O request was submitted, the service that submitted the I/O request, the database targeted by the I/O request, an indication of a consumer group to which the I/O request maps, the reason why the I/O request was issued, a priority category of the I/O request, etc. Techniques are also provided for automatically establishing a scheduling policy within a storage system, and for dynamically changing the scheduling policy in response to changes in workload.
摘要翻译：提供了技术，用于至少部分地基于I / O请求的一个或多个逻辑特性，在存储系统内管理由存储系统处理I / O请求的序列。逻辑特征可以包括例如提交I / O请求的用户的身份，提交I / O请求的服务，I / O请求所针对的数据库，消费者组的指示 I / O请求映射到哪里，发出I / O请求的原因，I / O请求的优先类别等。还提供了用于在存储系统内自动建立调度策略，并且为了动态地根据工作负载的变化改变调度策略。

6. 发明申请

US20120054158A1 Reduced Disk Space Standby 有权
标题翻译：减少磁盘空间待机
公开(公告)号：US20120054158A1
公开(公告)日：2012-03-01
申请号：US12871795
申请日：2010-08-30
申请人： Wei Ming Hu , Juan R. Loaiza , Yunrui Li , Vinay H. Srihari
发明人： Wei Ming Hu , Juan R. Loaiza , Yunrui Li , Vinay H. Srihari
IPC分类号： G06F17/30 , G06F12/08
CPC分类号： G06F17/30156 , G06F12/0866 , G06F17/30159 , G06F17/30592 , G06F2212/465
摘要： A method and system for replicating database data is provided. One or more standby database replicas can be used for servicing read-only queries, and the amount of storage required is scalable in the size of the primary database storage. One technique is described for combining physical database replication to multiple physical databases residing within a common storage system that performs de-duplication. Having multiple physical databases allows for many read-only queries to be processed, and the de-duplicating storage system provides scalability in the size of the primary database storage. Another technique uses one or more diskless standby database systems that share a read-only copy of physical standby database files. Notification messages provide consistency between each diskless system's in-memory cache and the state of the shared database files. Use of a transaction sequence number ensures that each database system only accesses versions of data blocks that are consistent with a transaction checkpoint.
摘要翻译：提供了一种用于复制数据库数据的方法和系统。一个或多个备用数据库副本可用于维护只读查询，并且所需的存储量可在主数据库存储的大小上扩展。描述了一种将物理数据库复制与驻留在执行重复数据删除的公共存储系统中的多个物理数据库进行组合的技术。拥有多个物理数据库可以处理许多只读查询，并且重复存储系统提供主数据库存储大小的可扩展性。另一种技术使用一个或多个共享物理备用数据库文件的只读副本的无盘备用数据库系统。通知消息提供每个无盘系统的内存缓存与共享数据库文件的状态之间的一致性。使用事务序列号确保每个数据库系统只能访问与事务检查点一致的数据块版本。

7. 发明申请

US20090292947A1 CASCADING INDEX COMPRESSION 有权
公开(公告)号：US20090292947A1
公开(公告)日：2009-11-26
申请号：US12469637
申请日：2009-05-20
申请人： Amit Ganesh , Juan R. Loaiza , Krishna Kunchithapadam
发明人： Amit Ganesh , Juan R. Loaiza , Krishna Kunchithapadam
IPC分类号： G06F11/07 , G06F17/30
CPC分类号： G06F11/1474 , G06F17/30
摘要： Techniques for maintaining a cascading index are provided. In one approach, one or more branch node compression techniques are applied to the main index of a cascading index. In an approach, a Bloom filter is generated and associated with, e.g., a branch node in the main index. The Bloom filter is used to determine whether, without accessing any leaf blocks, a particular key value exists, e.g., in leaf blocks associated with the branch node. In an approach, a new redo record is generated in response to a merge operation between two levels of the cascading index. The new redo record comprises (a) one or more addresses of blocks that are affected by the merge operation, (b) data is that being “pushed down” to a lower level of the cascading index, and (c) one or more addresses of blocks that are written to disk storage as a result of the merge operation.
摘要翻译：提供了维护级联索引的技术。在一种方法中，一个或多个分支节点压缩技术被应用于级联索引的主索引。在一种方法中，生成Bloom过滤器并与例如主索引中的分支节点相关联。 Bloom过滤器用于确定在不访问任何叶片块的情况下是否存在特定的键值，例如在与分支节点相关联的叶片块中。在一种方法中，响应于级联索引的两个级别之间的合并操作，生成新的重做记录。新的重做记录包括（a）受合并操作影响的块的一个或多个地址，（b）数据被“下推”到级联索引的较低级，以及（c）一个或多个地址作为合并操作的结果写入磁盘存储的块。

8. 发明授权

US07305395B1 Centralized storage and management of database parameters 有权
标题翻译：集中存储和管理数据库参数
公开(公告)号：US07305395B1
公开(公告)日：2007-12-04
申请号：US10131357
申请日：2002-04-24
申请人： Kothanda Umamageswaran , Juan R. Loaiza , Sumanta Chatterjee
发明人： Kothanda Umamageswaran , Juan R. Loaiza , Sumanta Chatterjee
IPC分类号： G06F17/30
CPC分类号： G06F17/30289 , Y10S707/99931 , Y10S707/99932
摘要： Techniques for the centralized storage and management of parameters for databases are provided. Configuration parameters for instances of a database server can be stored centrally and associated with the appropriate instance. Additionally, configuration parameters that are modified during run time of the instance can be stored so that subsequent instances can be initialized using those configuration parameters, which can result in new instances that are tuned for the environment.
摘要翻译：提供了数据库参数集中存储和管理技术。可以集中存储数据库服务器实例的配置参数，并与适当的实例相关联。此外，可以存储在实例的运行时间期间修改的配置参数，以便可以使用这些配置参数初始化后续实例，这些配置参数可能会导致为环境调整的新实例。

9. 发明授权

US06804671B1 Pluggable tablespaces for database systems 有权
标题翻译：数据库系统的可插拔表空间
公开(公告)号：US06804671B1
公开(公告)日：2004-10-12
申请号：US10353381
申请日：2003-01-28
申请人： Juan R. Loaiza , Hasan Rizvi , J. William Lee , William H. Bridge, Jr. , Jonathan D. Klein , Alex Tsukerman , Gianfranco Putzolu
发明人： Juan R. Loaiza , Hasan Rizvi , J. William Lee , William H. Bridge, Jr. , Jonathan D. Klein , Alex Tsukerman , Gianfranco Putzolu
IPC分类号： G06F1730
CPC分类号： G06F17/30952 , Y10S707/959 , Y10S707/99937 , Y10S707/99942 , Y10S707/99955
摘要： A pluggable tablespace is enabled by logically partitioning a database into a set of tablespaces and storing all of the tablespaces disk pointers in tablespace-relative format. A pluggable set of tablespaces is unplugged by generating the associated metadata, and making a binary copy of the tablespaces. The pluggable set of tablespaces is plugged into a target database by making the pluggable set accessible to the target database and incorporating the associated metadata, without patching any of the disk pointers.
摘要翻译：通过将数据库逻辑分区为一组表空间并以表空间相对格式存储所有表空间磁盘指针来启用可插入表空间。通过生成相关联的元数据并创建表空间的二进制副本，可以拔掉一组可插拔的表空间。可插入的表空间集合通过使可插入集合可访问目标数据库并结合相关联的元数据而插入到目标数据库中，而无需修补任何磁盘指针。

10. 发明授权

US06631374B1 System and method for providing fine-grained temporal database access 有权
标题翻译：提供细粒度时间数据库访问的系统和方法
公开(公告)号：US06631374B1
公开(公告)日：2003-10-07
申请号：US09676305
申请日：2000-09-29
申请人： Jonathan D. Klein , Amit Ganesh , Juan R. Loaiza , Gary C. Ngai
发明人： Jonathan D. Klein , Amit Ganesh , Juan R. Loaiza , Gary C. Ngai
IPC分类号： G06F1730
CPC分类号： G06F17/30551 , Y10S707/99938 , Y10S707/99952 , Y10S707/99953
摘要： A system and method for selectively viewing temporal row data in a consistent read-implemented database are described. Committed transactions effecting row data changes to a database are tracked and a stored system change number is assigned upon each committed transaction. Rollback segments for uncommitted transactions are stored. Each rollback segment stores a transaction identifier and transaction table entries containing ordered row data values reflecting the database changes. The database is transitioned into successive consistent versions responsive to each committed transaction at a journaled commit time. The transaction table entries are maintained for a user-definable retention period following the commit time of each committed transaction. A queried selection of row data values from the database is performed as of a query time occurring prior to the commit time of at least one committed transaction. The ordered row data values contained in the rollback segments storing a transaction identifier for the at least one committed transaction are retrieved.
摘要翻译：描述了用于在一致的读取实现的数据库中选择性地观看时间行数据的系统和方法。跟踪对数据库执行行数据更改的提交事务，并在每个已提交事务上分配存储的系统更改号。存储未提交事务的回滚段。每个回滚段存储事务标识符和事务表条目，其中包含反映数据库更改的排序行数据值。数据库在日志提交时间响应每个提交的事务转换为连续一致的版本。在每个提交的事务的提交时间之后，将为用户定义的保留期维护事务表条目。从至少一个提交事务的提交时间之前发生的查询时间执行来自数据库的查询选择行数据值。检索包含在存储至少一个已提交事务的事务标识符的回滚段中的有序行数据值。

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