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1. 发明申请

US20100325377A1 SYSTEM AND METHOD FOR RESTORING DATA ON DEMAND FOR INSTANT VOLUME RESTORATION 审中-公开
标题翻译：用于恢复数据的系统和方法用于即时容量恢复
公开(公告)号：US20100325377A1
公开(公告)日：2010-12-23
申请号：US12870324
申请日：2010-08-27
申请人： Jason Ansel Lango , Yong Eun Cho , Paul Christopher Eastham , Ling Zheng , Stephen L. Manley , John K. Edwards , Robert M. English , Emmanuel Ackaouy
发明人： Jason Ansel Lango , Yong Eun Cho , Paul Christopher Eastham , Ling Zheng , Stephen L. Manley , John K. Edwards , Robert M. English , Emmanuel Ackaouy
IPC分类号： G06F12/16
CPC分类号： G06F16/10
摘要： A technique is disclosed for restoring data of sparse volumes, where one or more block pointers within the file system structure are marked as ABSENT, and fetching the appropriate data from an alternate location on demand. Client data access requests to the local storage system initiate a restoration of the data from a backing store as required. A demand generator can also be used to restore the data as a background process by walking through the sparse volume and restoring the data of absent blocks. A pump module is also disclosed to regulate the access of the demand generator. Once all the data has been restored, the volume contains all data locally, and is no longer a sparse volume.
摘要翻译：公开了一种用于恢复稀疏卷的数据的技术，其中文件系统结构中的一个或多个块指针被标记为ABSENT，并且根据需要从备用位置获取适当的数据。对本地存储系统的客户端数据访问请求根据需要启动从后台存储器恢复数据。还可以使用需求生成器通过遍历稀疏卷并恢复缺席块的数据来将数据恢复为后台进程。还公开了一种泵模块来调节需求发生器的通路。一旦所有数据都已恢复，卷将包含本地的所有数据，并且不再是稀疏卷。

2. 发明授权

US07809693B2 System and method for restoring data on demand for instant volume restoration 有权
标题翻译：用于恢复即时卷恢复需求的数据的系统和方法
公开(公告)号：US07809693B2
公开(公告)日：2010-10-05
申请号：US11409626
申请日：2006-04-24
申请人： Jason Ansel Lango , Yong Eun Cho , Paul Christopher Eastham , Ling Zheng , Stephen L. Manley , John K. Edwards , Robert M. English , Emmanuel Ackaouy
发明人： Jason Ansel Lango , Yong Eun Cho , Paul Christopher Eastham , Ling Zheng , Stephen L. Manley , John K. Edwards , Robert M. English , Emmanuel Ackaouy
IPC分类号： G06F17/30 , G06F15/16
CPC分类号： G06F17/30067
摘要： A technique is disclosed for restoring data of sparse volumes, where one or more block pointers within the file system structure are marked as ABSENT, and fetching the appropriate data from an alternate location on demand. Client data access requests to the local storage system initiate a restoration of the data from a backing store as required. A demand generator can also be used to restore the data as a background process by walking through the sparse volume and restoring the data of absent blocks. A pump module is also disclosed to regulate the access of the demand generator. Once all the data has been restored, the volume contains all data locally, and is no longer a sparse volume.
摘要翻译：公开了一种用于恢复稀疏卷的数据的技术，其中文件系统结构中的一个或多个块指针被标记为ABSENT，并且根据需要从备用位置获取适当的数据。对本地存储系统的客户端数据访问请求根据需要启动从后台存储器恢复数据。还可以使用需求生成器通过遍历稀疏卷并恢复缺席块的数据来将数据恢复为后台进程。还公开了一种泵模块来调节需求发生器的通路。一旦所有数据都已恢复，卷将包含本地的所有数据，并且不再是稀疏卷。

3. 发明授权

US07644109B2 System and method for storage of snapshot metadata in a remote file 有权
标题翻译：在远程文件中存储快照元数据的系统和方法
公开(公告)号：US07644109B2
公开(公告)日：2010-01-05
申请号：US11328311
申请日：2006-01-09
申请人： Stephen L. Manley , Raymond C. Chen , John K. Edwards
发明人： Stephen L. Manley , Raymond C. Chen , John K. Edwards
IPC分类号： G06F17/30
CPC分类号： G06F17/30212 , Y10S707/99954
摘要： A system and method for conforming a metadata file associated with qtree of a storage system to a version used by a file system kernel of the storage system, where the version indicates a format of the metadata file. The metadata file stores state information with respect to each qtree, and may be located outside of the qtree structure. Major and minor versions are compared with latest known major and minor versions associated with the file system kernel. In response to such comparisons, the metadata file may be updated to a newer version, rolled back to an older version, and/or the system may enter a corrective state where further operations are performed.
摘要翻译：用于将与存储系统的qtree相关联的元数据文件与由存储系统的文件系统内核使用的版本相符合的系统和方法，其中版本指示元数据文件的格式。元数据文件存储关于每个qtree的状态信息，并且可以位于qtree结构之外。主要和次要版本与文件系统内核相关的最新已知的主要和次要版本进行比较。响应于这样的比较，元数据文件可以被更新到较新的版本，回滚到较旧的版本，和/或系统可以进入执行进一步的操作的校正状态。

4. 发明授权

US07043485B2 System and method for storage of snapshot metadata in a remote file 有权
公开(公告)号：US07043485B2
公开(公告)日：2006-05-09
申请号：US10100945
申请日：2002-03-19
申请人： Stephen L. Manley , Raymond C. Chen , John K. Edwards
发明人： Stephen L. Manley , Raymond C. Chen , John K. Edwards
IPC分类号： G06F17/30
CPC分类号： G06F17/30212 , Y10S707/99954
摘要： In a system and method for updating a remote replicated destination file system snapshot with changes in a source file system snapshot, the snapshot being associated with a qtree (or other sub-organization of the file system volume), a qtree metadata file on the destination in provided. The qtree metadata file resides, in the destination volume, and outside the qtree structure. The metadata file stores state information with respect to each qtree. This metadata file resides at a known location in the destination volume. The metadata file can include a plurality of fixed length records having respective fields for storing various information including qtree-specific information, and can be part of a hidden metadata directory.

5. 发明申请

US20120179891A1 EXTENSION OF WRITE ANYWHERE FILE SYSTEM LAYOUT 有权
标题翻译：写入任何文件系统布局的扩展
公开(公告)号：US20120179891A1
公开(公告)日：2012-07-12
申请号：US13351017
申请日：2012-01-16
申请人： John K. Edwards , Blake H. Lewis , Robert M. English , Eric Hamilton , Peter F. Corbett
发明人： John K. Edwards , Blake H. Lewis , Robert M. English , Eric Hamilton , Peter F. Corbett
IPC分类号： G06F12/10
CPC分类号： G06F3/0689 , G06F3/0619 , G06F3/0665 , G06F17/30233
摘要： A file system layout apportions an underlying physical volume into one or more virtual volumes (vvols) of a storage system. The underlying physical volume is an aggregate comprising one or more groups of disks, such as RAID groups, of the storage system. The aggregate has its own physical volume block number (pvbn) space and maintains metadata, such as block allocation structures, within that pvbn space. Each vvol has its own virtual volume block number (vvbn) space and maintains metadata, such as block allocation structures, within that vvbn space. Notably, the block allocation structures of a vvol are sized to the vvol, and not to the underlying aggregate, to thereby allow operations that manage data served by the storage system (e.g., snapshot operations) to efficiently work over the vvols.
摘要翻译：文件系统布局将底层物理卷分配到存储系统的一个或多个虚拟卷（vvols）中。底层物理卷是包含存储系统的一组或多组磁盘（如RAID组）的聚合。聚合具有自己的物理卷块数（pvbn）空间，并在该pvbn空间内维护诸如块分配结构之类的元数据。每个vvol具有自己的虚拟卷块号（vvbn）空间，并在该vvbn空间内维护诸如块分配结构的元数据。值得注意的是，vvol的块分配结构的大小适合于vvol，而不是基础聚合，从而允许管理由存储系统服务的数据（例如，快照操作）的操作有效地在vvols上工作。

6. 发明授权

US07321962B1 Technique for translating a hybrid virtual volume file system into a pure virtual file system data stream 有权
标题翻译：将混合虚拟卷文件系统翻译成纯虚拟文件系统数据流的技术
公开(公告)号：US07321962B1
公开(公告)日：2008-01-22
申请号：US11703380
申请日：2007-02-07
申请人： Robert L. Fair , Ashish Prakash , Eric Hamilton , John K. Edwards , Robert M. English
发明人： Robert L. Fair , Ashish Prakash , Eric Hamilton , John K. Edwards , Robert M. English
IPC分类号： G06F12/00
CPC分类号： G06F3/064 , G06F3/0619 , G06F3/0643 , G06F3/067
摘要： A method for transferring data of a hybrid virtual volume of a computer data storage system from a source to a destination is disclosed. The method first translates intermingled virtual and physical volume block numbers of the hybrid virtual volume into a data stream having only virtual volume block numbers. The method then sends the data stream to a destination computer.
摘要翻译：公开了将计算机数据存储系统的混合虚拟卷的数据从源传送到目的地的方法。该方法首先将混合虚拟卷的混合虚拟和物理卷块编号转换成仅具有虚拟卷块号的数据流。该方法然后将数据流发送到目标计算机。

7. 发明授权

US08099576B1 Extension of write anywhere file system layout 有权
标题翻译：扩展写任意文件系统布局
公开(公告)号：US08099576B1
公开(公告)日：2012-01-17
申请号：US12185552
申请日：2008-08-04
申请人： John K. Edwards , Blake H. Lewis , Robert M. English , Eric Hamilton , Peter F. Corbett
发明人： John K. Edwards , Blake H. Lewis , Robert M. English , Eric Hamilton , Peter F. Corbett
IPC分类号： G06F12/00
CPC分类号： G06F3/0689 , G06F3/0619 , G06F3/0665 , G06F17/30233
摘要： An underlying physical volume of a storage system is an aggregate having a plurality of storage devices. The aggregate has its own physical volume block number (pvbn) space. A file system layout apportions the underlying physical volume into a plurality of virtual volumes of the storage system each having a virtual volume identification (vvid). Each virtual volume has its own virtual volume block number (vvbn) space. The block allocation structures of a virtual volume are sized to the virtual volume, and not to the underlying aggregate, to thereby allow operations that manage data served by the storage system (e.g., snapshot operations) to efficiently work over the virtual volumes. Each storage block in a virtual volume is identified by the triplet: pvbn, vvid, and vvbn.
摘要翻译：存储系统的基础物理卷是具有多个存储设备的聚合。聚合具有自己的物理块号（pvbn）空间。文件系统布局将底层物理卷分配到存储系统的多个虚拟卷中，每个虚拟卷具有虚拟卷标识（vvid）。每个虚拟卷都有自己的虚拟卷块号（vvbn）空间。虚拟卷的块分配结构的大小适合于虚拟卷，而不是基础聚合，从而允许管理由存储系统服务的数据（例如，快照操作）的操作以有效地在虚拟卷上工作。虚拟卷中的每个存储块由三元组：pvbn，vvid和vvbn标识。

8. 发明授权

US07409494B2 Extension of write anywhere file system layout 有权
标题翻译：扩展写任意文件系统布局
公开(公告)号：US07409494B2
公开(公告)日：2008-08-05
申请号：US10836817
申请日：2004-04-30
申请人： John K. Edwards , Blake H. Lewis , Robert M. English , Eric Hamilton , Peter F. Corbett
发明人： John K. Edwards , Blake H. Lewis , Robert M. English , Eric Hamilton , Peter F. Corbett
IPC分类号： G06F12/00
CPC分类号： G06F3/0689 , G06F3/0619 , G06F3/0665 , G06F17/30233
摘要： A file system layout apportions an underlying physical volume into one or more virtual volumes (vvols) of a storage system. The underlying physical volume is an aggregate comprising one or more groups of disks, such as RAID groups, of the storage system. The aggregate has its own physical volume block number (pvbn) space and maintains metadata, such as block allocation structures, within that pvbn space. Each vvol has its own virtual volume block number (vvbn) space and maintains metadata, such as block allocation structures, within that vvbn space. Notably, the block allocation structures of a vvol are sized to the vvol, and not to the underlying aggregate, to thereby allow operations that manage data served by the storage system (e.g., snapshot operations) to efficiently work over the vvols. The file system layout extends the file system layout of a conventional write anywhere file layout system implementation, yet maintains performance properties of the conventional implementation.
摘要翻译：文件系统布局将底层物理卷分配到存储系统的一个或多个虚拟卷（vvols）中。底层物理卷是包含存储系统的一组或多组磁盘（如RAID组）的聚合。聚合具有自己的物理卷块数（pvbn）空间，并在该pvbn空间内维护诸如块分配结构的元数据。每个vvol具有自己的虚拟卷块号（vvbn）空间，并在该vvbn空间内维护诸如块分配结构的元数据。值得注意的是，vvol的块分配结构的大小适合于vvol，而不是基础聚合，从而允许管理由存储系统服务的数据（例如，快照操作）的操作有效地在vvols上工作。文件系统布局扩展了常规写入任何文件布局系统实现的文件系统布局，但是保持了传统实现的性能特性。

9. 发明授权

US07194595B1 Technique for translating a hybrid virtual volume file system into a pure virtual file system data stream 有权
标题翻译：将混合虚拟卷文件系统翻译成纯虚拟文件系统数据流的技术
公开(公告)号：US07194595B1
公开(公告)日：2007-03-20
申请号：US10951196
申请日：2004-09-27
申请人： Robert L. Fair , Ashish Prakash , Eric Hamilton , John K. Edwards , Robert M. English
发明人： Robert L. Fair , Ashish Prakash , Eric Hamilton , John K. Edwards , Robert M. English
IPC分类号： G06F12/00
CPC分类号： G06F3/0643 , G06F3/0611 , G06F3/067 , G06F11/2074 , G06F17/30067
摘要： A technique translates a hybrid virtual volume (vvol) having a file system that contains intermingled virtual and physical volume block numbers (vbns) into a “pure” stream of virtual vbns (vvbns). The stream of vvbns is illustratively embodied as an output file system data stream of a vvol image that is transferred by a source storage system (“source”) to a destination storage system (“destination”) in accordance with image transfer operations, such as volume copying and synchronous or asynchronous mirroring, provided by a volume replication facility. The blocks that are sent as part of the image transfer are selected from a container file of the hybrid vvol on the source. In particular, the invention is directed to a technique for translating physical vbns (pvbns) of a source aggregate on the source to pure vvbns of the output file system data stream that can be used on a destination aggregate of the destination, where embedded pvbns in the source hybrid vvol image are not valid.
摘要翻译：一种技术将具有文件系统的混合虚拟卷（vvol）将包含混合的虚拟和物理卷块号（vbns）的虚拟卷（vvol）转换为“纯”虚拟虚拟虚拟流（vbnbn）。 vvbns的流被示例性地实现为根据图像传送操作将源存储系统（“源”）传送到目的地存储系统（“目的地”）的vvol图像的输出文件系统数据流，例如卷复制和同步或异步镜像，由卷复制工具提供。作为图像传输的一部分发送的块从源上的混合vvol的容器文件中选择。特别地，本发明涉及一种用于将源上的源聚合的物理vbn（pvbn）转换为可以在目的地的目的地聚合上使用的输出文件系统数据流的纯vvbn的技术，其中嵌入的pvbn 源混合vvol映像无效。

10. 发明授权

US08583892B2 Extension of write anywhere file system layout 有权
标题翻译：扩展写任意文件系统布局
公开(公告)号：US08583892B2
公开(公告)日：2013-11-12
申请号：US13351017
申请日：2012-01-16
申请人： John K. Edwards , Blake H. Lewis , Robert M. English , Eric Hamilton , Peter F. Corbett
发明人： John K. Edwards , Blake H. Lewis , Robert M. English , Eric Hamilton , Peter F. Corbett
IPC分类号： G06F12/00
CPC分类号： G06F3/0689 , G06F3/0619 , G06F3/0665 , G06F17/30233
摘要： A file system layout apportions an underlying physical volume into one or more virtual volumes (vvols) of a storage system. The underlying physical volume is an aggregate comprising one or more groups of disks, such as RAID groups, of the storage system. The aggregate has its own physical volume block number (pvbn) space and maintains metadata, such as block allocation structures, within that pvbn space. Each vvol has its own virtual volume block number (vvbn) space and maintains metadata, such as block allocation structures, within that vvbn space. Notably, the block allocation structures of a vvol are sized to the vvol, and not to the underlying aggregate, to thereby allow operations that manage data served by the storage system (e.g., snapshot operations) to efficiently work over the vvols.
摘要翻译：文件系统布局将底层物理卷分配到存储系统的一个或多个虚拟卷（vvols）中。底层物理卷是包含存储系统的一组或多组磁盘（如RAID组）的聚合。聚合具有自己的物理卷块数（pvbn）空间，并在该pvbn空间内维护诸如块分配结构的元数据。每个vvol具有自己的虚拟卷块号（vvbn）空间，并在该vvbn空间内维护诸如块分配结构的元数据。值得注意的是，vvol的块分配结构的大小适合于vvol，而不是基础聚合，从而允许管理由存储系统服务的数据（例如，快照操作）的操作有效地在vvols上工作。

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