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1. 发明授权

US07467282B2 Migrating a traditional volume to a virtual volume in a storage system 有权
标题翻译：将传统卷迁移到存储系统中的虚拟卷
公开(公告)号：US07467282B2
公开(公告)日：2008-12-16
申请号：US11099925
申请日：2005-04-05
申请人： Sriram Rao , John Edwards , Douglas P. Doucette , Cheryl Thompson
发明人： Sriram Rao , John Edwards , Douglas P. Doucette , Cheryl Thompson
IPC分类号： G06F12/00
CPC分类号： G06F3/067 , G06F3/0607 , G06F3/0647
摘要： A file system migrates a traditional volume to a virtual volume without data copying. In an embodiment, a traditional volume index node is selected for migration. The traditional volume index node is converted to a virtual volume index node. In one embodiment, the virtual volume index node provides both physical address information and virtual address information.
摘要翻译：文件系统将传统卷迁移到虚拟卷，而不进行数据复制。在一个实施例中，选择传统的卷索引节点进行迁移。传统的卷索引节点被转换为虚拟卷索引节点。在一个实施例中，虚拟卷索引节点提供物理地址信息和虚拟地址信息。

2. 发明授权

US07290013B2 Space allocation in a write anywhere file system 有权
标题翻译：空间分配在写任意文件系统
公开(公告)号：US07290013B2
公开(公告)日：2007-10-30
申请号：US10688070
申请日：2003-10-17
申请人： Douglas P. Doucette , Blake Lewis , John Edwards
发明人： Douglas P. Doucette , Blake Lewis , John Edwards
IPC分类号： G06F17/30 , G06F17/00
CPC分类号： G06F3/0605 , G06F3/0608 , G06F3/0631 , G06F3/0643 , G06F3/0644 , G06F3/0689 , G06F17/30067 , Y10S707/99943 , Y10S707/99952 , Y10S707/99953 , Y10S707/99956
摘要： The invention provides a method and system for improving data access of a reliable file system. In a first aspect of the invention, the file system determines the relative vacancy of a collection of storage blocks, herein called an “allocation area”. This is accomplished by recording an array of binary numbers. Each binary number in the array describes the vacancy of a collection of storage blocks. The file system examines these binary numbers when attempting to record file blocks in relatively contiguous areas on a storage medium, such as a hard disk. When a request to write to disk occurs, the system determines the average vacancy of all the allocation areas and queries the allocation areas for individual vacancy rates such as sequentially. The system preferably writes file blocks to the allocation areas that are above a threshold related to the average storage block vacancy of the file system. If the file in the request to write is larger than the selected allocation area, the next allocation area above the threshold is preferably used to write the remaining blocks of the file.
摘要翻译：本发明提供了一种用于改善可靠文件系统的数据访问的方法和系统。在本发明的第一方面，文件系统确定存储块集合的相对空位，这里称为“分配区域”。这是通过记录二进制数字的数组来实现的。阵列中的每个二进制数字描述了存储块集合的空位。当尝试在诸如硬盘的存储介质上的相对连续的区域中记录文件块时，文件系统检查这些二进制数。当写入磁盘的请求发生时，系统确定所有分配区域的平均空缺，并查询单个空缺率的分配区域，如顺序。系统优选地将文件块写入高于与文件系统的平均存储块空缺相关的阈值的分配区域。如果写入请求中的文件大于所选择的分配区域，则优选地使用高于阈值的下一个分配区域来写入文件的剩余块。

3. 发明申请

US20110191780A1 METHOD AND APPARATUS FOR DECOMPOSING I/O TASKS IN A RAID SYSTEM 有权
标题翻译：用于在RAID系统中分解I / O任务的方法和装置
公开(公告)号：US20110191780A1
公开(公告)日：2011-08-04
申请号：US13048513
申请日：2011-03-15
申请人： Srinivasan Viswanathan , James Leong , Rajesh Sundaram , Douglas P. Doucette , Scott Schoenthal , Stephen H. Strange
发明人： Srinivasan Viswanathan , James Leong , Rajesh Sundaram , Douglas P. Doucette , Scott Schoenthal , Stephen H. Strange
IPC分类号： G06F9/46
CPC分类号： G06F3/0601 , G06F3/061 , G06F3/0611 , G06F3/0655 , G06F3/0659 , G06F3/0689 , G06F9/4881 , G06F11/2087
摘要： A data access request to a file system is decomposed into a plurality of lower-level I/O tasks. A logical combination of physical storage components is represented as a hierarchical set of objects. A parent I/O task is generated from a first object in response to the data access request. A child I/O task is generated from a second object to implement a portion of the parent I/O task. The parent I/O task is suspended until the child I/O task completes. The child I/O task is executed in response to an occurrence of an event that a resource required by the child I/O task is available. The parent I/O task is resumed upon an event indicating completion of the child I/O task. Scheduling of any child I/O task is not conditional on execution of the parent I/O task, and a state diagram regulates the child I/O tasks.
摘要翻译：对文件系统的数据访问请求被分解成多个较低级的I / O任务。物理存储组件的逻辑组合被表示为一组分层对象。响应于数据访问请求，从第一对象生成父I / O任务。从第二个对象生成子I / O任务，以实现父I / O任务的一部分。父I / O任务被暂停，直到子I / O任务完成。响应于发生子I / O任务所需的资源可用的事件，执行子I / O任务。在指示完成子I / O任务的事件后，将恢复父I / O任务。任何子I / O任务的调度不是执行父I / O任务的条件，而状态图则规定了子I / O任务。

4. 发明授权

US07930475B1 Method for writing contiguous arrays of stripes in a RAID storage system using mapped block writes 有权
标题翻译：使用映射块写入在RAID存储系统中写入连续的条带阵列的方法
公开(公告)号：US07930475B1
公开(公告)日：2011-04-19
申请号：US11709697
申请日：2007-02-22
申请人： Steven R. Kleiman , Rajesh Sundaram , Douglas P. Doucette , Stephen H. Strange , Srinivasan Viswanathan
发明人： Steven R. Kleiman , Rajesh Sundaram , Douglas P. Doucette , Stephen H. Strange , Srinivasan Viswanathan
IPC分类号： G06F12/02
CPC分类号： G06F3/0613 , G06F3/0643 , G06F3/0655 , G06F3/0689 , G06F11/1076
摘要： A method for storing data on a plurality of storage devices of a storage system is disclosed. The data is received as data blocks from a plurality of write requests. The data blocks are saved as buffered data for writing to the storage devices in a single write request. An indication is received indicating the available storage blocks on the plurality of storage devices which are available for writing. The buffered data is associated with selected storage blocks of the storage blocks which are available for writing. The buffered data is written to the selected storage blocks in a single write request.
摘要翻译：公开了一种在存储系统的多个存储装置上存储数据的方法。数据作为来自多个写入请求的数据块被接收。数据块被保存为缓冲数据，以便在单个写入请求中写入存储设备。接收到指示可用于写入的多个存储设备上的可用存储块的指示。缓存的数据与可用于写入的存储块的所选存储块相关联。缓冲的数据在单个写入请求中写入所选择的存储块。

5. 发明申请

US20130238851A1 HYBRID STORAGE AGGREGATE BLOCK TRACKING 审中-公开
标题翻译：混合储存聚集块追踪
公开(公告)号：US20130238851A1
公开(公告)日：2013-09-12
申请号：US13413877
申请日：2012-03-07
申请人： Koling Chang , Rajesh Sundaram , Douglas P. Doucette , Ravikanth Dronamraju
发明人： Koling Chang , Rajesh Sundaram , Douglas P. Doucette , Ravikanth Dronamraju
IPC分类号： G06F12/08
CPC分类号： G06F12/0871 , G06F3/061 , G06F3/0647 , G06F3/0656 , G06F3/0685 , G06F12/0895
摘要： Methods and apparatuses for operating a hybrid storage aggregate are provided. In one example, such a method includes operating a first tier of physical storage of the hybrid storage aggregate as a cache for a second tier of physical storage of the hybrid storage aggregate. The first tier of physical storage includes a plurality of assigned blocks. The method also includes updating metadata of the assigned blocks in response to an event associated with at least one of the assigned blocks. The metadata includes block usage information tracking more than two possible usage states per assigned block. The method can further include processing the metadata to determine a caching characteristic of the assigned blocks.
摘要翻译：提供了用于操作混合存储集合体的方法和装置。在一个示例中，这种方法包括操作混合存储聚合体的第一层物理存储作为混合存储聚合体的第二物理存储层的缓存。第一层物理存储包括多个分配块。该方法还包括响应于与所分配的块中的至少一个相关联的事件来更新所分配的块的元数据。元数据包括跟踪每个分配块的两个以上可能使用状态的块使用信息。该方法还可以包括处理元数据以确定所分配块的高速缓存特性。

6. 发明授权

US07437727B2 Method and apparatus for runtime resource deadlock avoidance in a raid system 有权
标题翻译： raid系统中运行时资源死锁避免的方法和装置
公开(公告)号：US07437727B2
公开(公告)日：2008-10-14
申请号：US10105039
申请日：2002-03-21
申请人： James Leong , Rajesh Sundaram , Douglas P. Doucette , Stephen H. Strange , Srinivasan Viswanathan
发明人： James Leong , Rajesh Sundaram , Douglas P. Doucette , Stephen H. Strange , Srinivasan Viswanathan
IPC分类号： G06F9/46 , G06F3/00 , G06F12/00
CPC分类号： G06F9/4856 , G06F3/0601 , G06F9/4881 , G06F9/5016 , G06F9/524 , G06F2003/0697 , G06F2209/484
摘要： The present invention implements an I/O task architecture in which an I/O task requested by the storage manager, for example a stripe write, is decomposed into a number of lower-level asynchronous I/O tasks that can be scheduled independently. Resources needed by these lower-level I/O tasks are dynamically assigned, on an as-needed basis, to balance the load and use resources efficiently, achieving higher scalability. A hierarchical order is assigned to the I/O tasks to ensure that there is a forward progression of the higher-level I/O task and to ensure that resources do not become deadlocked.
摘要翻译：本发明实现了I / O任务架构，其中由存储管理器请求的I / O任务（例如条带写入）被分解成可以独立调度的多个较低级别的异步I / O任务。这些较低级I / O任务所需的资源根据需要动态分配，以有效平衡负载和使用资源，实现更高的可扩展性。分层次序分配给I / O任务，以确保上级I / O任务有前进的进程，并确保资源不会成为死锁。

7. 发明授权

US06636879B1 Space allocation in a write anywhere file system 有权
标题翻译：空间分配在写任意文件系统
公开(公告)号：US06636879B1
公开(公告)日：2003-10-21
申请号：US09642065
申请日：2000-08-18
申请人： Douglas P. Doucette , Blake Lewis , John K. Edwards
发明人： Douglas P. Doucette , Blake Lewis , John K. Edwards
IPC分类号： G06F1730
CPC分类号： G06F3/0605 , G06F3/0608 , G06F3/0631 , G06F3/0643 , G06F3/0644 , G06F3/0689 , G06F17/30067 , Y10S707/99943 , Y10S707/99952 , Y10S707/99953 , Y10S707/99956
摘要： A method and system for improving data access of a reliable file system is provided. In a first aspect of the invention, the file system determines the relative vacancy of a collection of storage blocks, herein called an “allocation area”. This is accomplished by recording an array of binary numbers. Each binary number in the array describes the vacancy of a collection of storage blocks. The file system examines these binary numbers when attempting to record file blocks in relatively contiguous areas on a storage medium, such as a hard disk. When a request to write to disk occurs, the system determines the average vacancy of all the allocation areas and queries the allocation areas for individual vacancy rates such as sequentially. The system preferably writes file blocks to the allocation areas that are above a threshold related to the average storage block vacancy of the file system. If the file in the request to write is larger than the selected allocation area, the next allocation area above the threshold is preferably used to write the remaining blocks of the file.
摘要翻译：提供了一种用于改善可靠文件系统的数据访问的方法和系统。在本发明的第一方面，文件系统确定存储块集合的相对空位，这里称为“分配区域”。这是通过记录二进制数字的数组来实现的。阵列中的每个二进制数字描述了存储块集合的空位。当尝试在诸如硬盘的存储介质上的相对连续的区域中记录文件块时，文件系统检查这些二进制数。当写入磁盘的请求发生时，系统确定所有分配区域的平均空缺，并查询单个空缺率的分配区域，如顺序。系统优选地将文件块写入高于与文件系统的平均存储块空缺相关的阈值的分配区域。如果写入请求中的文件大于所选择的分配区域，则优选地使用高于阈值的下一个分配区域来写入文件的剩余块。

8. 发明授权

US08041924B2 Location-independent raid group virtual block management 有权
标题翻译：位置无关的RAID组虚拟块管理
公开(公告)号：US08041924B2
公开(公告)日：2011-10-18
申请号：US12640038
申请日：2009-12-17
申请人： Stephen H. Strange , Scott Schoenthal , Douglas P. Doucette , Srinivasan Viswanathan
发明人： Stephen H. Strange , Scott Schoenthal , Douglas P. Doucette , Srinivasan Viswanathan
IPC分类号： G06F12/08 , G06F11/07
CPC分类号： G06F3/0607 , G06F3/0643 , G06F3/0647 , G06F3/0665 , G06F3/0689 , G06F11/1092 , G06F11/2056 , G06F2211/1023 , H04L67/1097
摘要： A computer storage system is described. A range of volume block numbers (VBNs) is assigned to a volume. A range of storage device block numbers (DBNs) is assigned to each of a plurality of storage devices. A first mapping parameters are created to map a first range of VBN numbers to a first selected range of DBNs using a first portion of a new storage device. A second mapping parameters are created to map a second range of VBN numbers to a second range of DBNs on a second portion of the new storage device.
摘要翻译：描述了计算机存储系统。一个音量块编号（VBN）的范围被分配给一个音量。存储设备块号（DBN）的范围被分配给多个存储设备中的每一个。创建第一映射参数以使用新存储设备的第一部分将第一范围的VBN号码映射到DBN的第一选定范围。创建第二映射参数以将第二范围的VBN号映射到新存储设备的第二部分上的第二DBN范围。

9. 发明申请

US20100095060A1 LOCATION-INDEPENDENT RAID GROUP VIRTUAL BLOCK MANAGEMENT 有权
标题翻译：位置独立RAID组虚拟块管理
公开(公告)号：US20100095060A1
公开(公告)日：2010-04-15
申请号：US12640038
申请日：2009-12-17
申请人： Stephen H. Strange , Scott Schoenthal , Douglas P. Doucette , Srinivasan Viswanathan
发明人： Stephen H. Strange , Scott Schoenthal , Douglas P. Doucette , Srinivasan Viswanathan
IPC分类号： G06F12/00 , G06F11/00 , G06F11/20
CPC分类号： G06F3/0607 , G06F3/0643 , G06F3/0647 , G06F3/0665 , G06F3/0689 , G06F11/1092 , G06F11/2056 , G06F2211/1023 , H04L67/1097
摘要： A computer storage system is described. A range of volume block numbers (VBNs) is assigned to a volume. A range of storage device block numbers (DBNs) is assigned to each of a plurality of storage devices. A first mapping parameters are created to map a first range of VBN numbers to a first selected range of DBNs using a first portion of a new storage device. A second mapping parameters are created to map a second range of VBN numbers to a second range of DBNs on a second portion of the new storage device.
摘要翻译：描述了计算机存储系统。一个音量块编号（VBN）的范围被分配给一个音量。存储设备块号（DBN）的范围被分配给多个存储设备中的每一个。创建第一映射参数以使用新存储设备的第一部分将第一范围的VBN号码映射到DBN的第一选定范围。创建第二映射参数以将第二范围的VBN号映射到新存储设备的第二部分上的第二DBN范围。

10. 发明授权

US07660966B2 Location-independent RAID group virtual block management 有权
标题翻译：位置无关的RAID组虚拟块管理
公开(公告)号：US07660966B2
公开(公告)日：2010-02-09
申请号：US11497590
申请日：2006-08-02
申请人： Stephen H. Strange , Scott Schoenthal , Douglas P. Doucette , Srinivasan Viswanathan
发明人： Stephen H. Strange , Scott Schoenthal , Douglas P. Doucette , Srinivasan Viswanathan
IPC分类号： G06F11/07 , G06F12/08 , G06F12/16
CPC分类号： G06F3/0607 , G06F3/0643 , G06F3/0647 , G06F3/0665 , G06F3/0689 , G06F11/1092 , G06F11/2056 , G06F2211/1023 , H04L67/1097
摘要： A storage operating system is configured to assign volume block numbers (VBNs) to a volume. The system has a plurality of disks, and each disk of the plurality of disks is assigned disk block numbers (DBNs). A raidmap is configured to map the VBNs to the DBNs of the plurality of physical disks, the mapping for a particular disk stored in a disk label for the particular disk. The disk label for the particular disk is then written to the particular disk.
摘要翻译：存储操作系统被配置为将卷块号（VBN）分配给卷。该系统具有多个盘，并且多个盘中的每个盘分配有磁盘块号（DBN）。 raidmap被配置为将VBN映射到多个物理磁盘的DBN，对于特定磁盘的磁盘标签中存储的特定磁盘的映射。然后将特定磁盘的磁盘标签写入特定磁盘。

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