公开(公告)号：US08180747B2

公开(公告)日：2012-05-15

申请号：US12268601

申请日：2008-11-11

申请人： Vladan Z. Marinkovic ,  Thomas K. Wong ,  Saravanan Coimbatore ,  Chitra Makkar ,  Suma Suresh ,  Borislav Marinov ,  Ron S. Vogel

发明人： Vladan Z. Marinkovic ,  Thomas K. Wong ,  Saravanan Coimbatore ,  Chitra Makkar ,  Suma Suresh ,  Borislav Marinov ,  Ron S. Vogel

IPC分类号： G06F7/00

CPC分类号： G06F17/302

摘要： Load sharing clusters in which each node is responsible for one or more non-overlapping subset(s) of the cluster namespace and will process only those requests that access file or directory objects in the partitioned namespace that the node controls while redirecting requests designated for other nodes. A non-overlapping subset may be migrated from a source node to a destination node, for example, for load sharing or hotspot mitigation. Migration typically includes maintaining a file virtualization link from the destination node to the source node to permit forwarding of requests by the destination node to the source node during migration of metadata and then migration of data from the source node. After migration is complete, the file virtualization link is broken and the destination node services requests for the non-overlapping subset from the migrated metadata and data.

摘要翻译： 负载共享集群，其中每个节点负责集群命名空间的一个或多个非重叠子集，并且只处理那些访问节点所控制的分区命名空间中的文件或目录对象的请求，同时重定向为其他节点指定的请求 节点。 非重叠子集可以从源节点迁移到目的地节点，例如用于负载共享或热点缓解。 移植通常包括维护从目的地节点到源节点的文件虚拟化链路，以允许在元数据迁移期间由目的地节点向源节点转发请求，然后从源节点迁移数据。 迁移完成后，文件虚拟化链接断开，目标节点服务从迁移的元数据和数据请求非重叠子集。

公开(公告)号：US20090210431A1

公开(公告)日：2009-08-20

申请号：US12268601

申请日：2008-11-11

申请人： Vladan Z. Marinkovic ,  Thomas K. Wong ,  Saravanan Coimbatore ,  Chitra Makkar ,  Suma Suresh ,  Borislav Marinov ,  Ron S. Vogel

发明人： Vladan Z. Marinkovic ,  Thomas K. Wong ,  Saravanan Coimbatore ,  Chitra Makkar ,  Suma Suresh ,  Borislav Marinov ,  Ron S. Vogel

IPC分类号： G06F17/30

CPC分类号： G06F17/302

摘要： Load sharing clusters in which each node is responsible for one or more non-overlapping subset(s) of the cluster namespace and will process only those requests that access file or directory objects in the partitioned namespace that the node controls while redirecting requests designated for other nodes. A non-overlapping subset may be migrated from a source node to a destination node, for example, for load sharing or hotspot mitigation. Migration typically includes maintaining a file virtualization link from the destination node to the source node to permit forwarding of requests by the destination node to the source node during migration of metadata and then migration of data from the source node. After migration is complete, the file virtualization link is broken and the destination node services requests for the non-overlapping subset from the migrated metadata and data.

摘要翻译： 负载共享集群，其中每个节点负责集群命名空间的一个或多个非重叠子集，并且只处理那些访问节点所控制的分区命名空间中的文件或目录对象的请求，同时重定向为其他节点指定的请求 节点。 非重叠子集可以从源节点迁移到目的地节点，例如用于负载共享或热点缓解。 移植通常包括维护从目的地节点到源节点的文件虚拟化链路，以允许在元数据迁移期间由目的地节点向源节点转发请求，然后从源节点迁移数据。 迁移完成后，文件虚拟化链接断开，目标节点服务从迁移的元数据和数据请求非重叠子集。

公开(公告)号：US08117244B2

公开(公告)日：2012-02-14

申请号：US12268718

申请日：2008-11-11

申请人： Borislav Marinov ,  Thomas K. Wong ,  Vladan Z. Marinkovic ,  Ron S. Vogel

发明人： Borislav Marinov ,  Thomas K. Wong ,  Vladan Z. Marinkovic ,  Ron S. Vogel

IPC分类号： G06F17/30

CPC分类号： G06F17/30079 ,  G06F11/1662 ,  Y10S707/99952

摘要： A non-distruptive migration of a native volume from a source server to a destination server performed by a file switch involves converting the source native volume to a native with metadata volume. The native with metadata volume is converted to a mirrored native with metadata volume including the source server and the destination server. The destination server includes a mirror copy of the native with metadata volume. The source server is removed from the mirrored native with metadata volume. The mirror copy of the native with metadata volume on the destination server is converted to a destination native volume on the destination server.

摘要翻译： 本地卷从源服务器到文件交换机执行的目标服务器的非干扰性迁移涉及将源本机卷转换为具有元数据卷的本地卷。 具有元数据卷的本机将转换为包含源服务器和目标服务器的元数据卷的镜像本机。 目标服务器包括具有元数据卷的本机的镜像副本。 源服务器将从具有元数据卷的镜像本机中删除。 目标服务器上具有元数据卷的本地镜像副本将转换为目标服务器上的目标本机卷。

公开(公告)号：US20090254592A1

公开(公告)日：2009-10-08

申请号：US12268718

申请日：2008-11-11

申请人： Borislav Marinov ,  Thomas K. Wong ,  Vladan Z. Marinkovic ,  Ron S. Vogel

发明人： Borislav Marinov ,  Thomas K. Wong ,  Vladan Z. Marinkovic ,  Ron S. Vogel

IPC分类号： G06F17/30

CPC分类号： G06F17/30079 ,  G06F11/1662 ,  Y10S707/99952

摘要： Non-disruptive migration of the native volume from the source server to the destination server performed by a file switch involves converting the source native volume to a native with metadata volume; converting the native with metadata volume to a mirrored native with metadata volume including the source server and the destination server, the destination server including a mirror copy of the native with metadata volume; removing the source server from the mirrored native with metadata volume; and converting the mirror copy of the native with metadata volume on the destination server to a destination native volume on the destination server.

摘要翻译： 本地卷从源服务器到文件交换机执行的目标服务器的非中断迁移涉及将源本机卷转换为具有元数据卷的本地卷; 将具有元数据卷的本地数据转换为包含源服务器和目标服务器的元数据卷的镜像本机，目标服务器包括具有元数据卷的本机的镜像副本; 使用元数据卷从镜像本机中删除源服务器; 并将目标服务器上的元数据卷的本机镜像副本转换为目标服务器上的目标本机卷。

公开(公告)号：US20090204705A1

公开(公告)日：2009-08-13

申请号：US12268609

申请日：2008-11-11

申请人： Borislav Marinov ,  Thomas K. Wong ,  Ron S. Vogel

发明人： Borislav Marinov ,  Thomas K. Wong ,  Ron S. Vogel

IPC分类号： G06F17/30 ,  G06F15/173

CPC分类号： G06F16/183

摘要： Inserting a file virtualization appliance into a storage network involves configuring a global namespace of a virtualization appliance to match a global namespace exported by a distributed filesystem (DFS) server and updating the distributed filesystem server to redirect client requests associated with the global namespace to the virtualization appliance. Removing the file virtualization appliance involves sending a global namespace from the virtualization appliance to the distributed filesystem server and configuring the virtualization appliance to not respond to any new client connection requests received by the virtualization appliance.

摘要翻译： 将文件虚拟化设备插入存储网络涉及配置虚拟化设备的全局命名空间，以匹配由分布式文件系统（DFS）服务器导出的全局命名空间，并更新分布式文件系统服务器以将与全局命名空间相关联的客户机请求重定向到虚拟化 器具。 删除文件虚拟化设备涉及将全局命名空间从虚拟化设备发送到分布式文件系统服务器，并将虚拟化设备配置为不响应虚拟化设备接收到的任何新的客户端连接请求。

公开(公告)号：US08548953B2

公开(公告)日：2013-10-01

申请号：US12268573

申请日：2008-11-11

申请人： Thomas K. Wong ,  Ron S. Vogel

发明人： Thomas K. Wong ,  Ron S. Vogel

IPC分类号： G06F7/00 ,  G06F17/00

CPC分类号： G06F17/30153

摘要： A method and apparatus for removing duplicated data in a file system utilizing the concept of storage tiers. A synthetic namespace is created via file virtualization, and is comprised of one or more file systems. Deduplication is applied at the namespace level and on all of the file systems comprising the synthetic namespace. All files in a file system in a higher storage tier whose contents are identical to at least one other file in the synthetic namespace are moved to a destination file system in a lower storage tier. For each set of duplicated files that are moved from the original servers, a single instance copy of the file is left behind as a mirror copy. Read access to a duplicated file is redirected to its mirror copy. When the first write to a duplicated file is received, the association from the duplicated file stored in the destination server to its mirror copy that is stored in the origin server is discarded. Access to the “modified” duplicated file will then resume normally from the destination server.

摘要翻译： 一种利用存储层概念去除文件系统中的重复数据的方法和装置。 通过文件虚拟化创建合成命名空间，并由一个或多个文件系统组成。 在命名空间级别和包含合成命名空间的所有文件系统上应用重复数据消除。 内容与合成命名空间中至少一个其他文件相同的较高存储层中的文件系统中的所有文件将移动到较低存储层中的目标文件系统。 对于从原始服务器移动的每组复制文件，文件的单个实例副本将作为镜像副本留下。 对重复文件的读取访问权限被重定向到其镜像副本。 当接收到对重复文件的第一次写入时，从存储在目的地服务器中的复制文件到存储在原始服务器中的镜像副本的关联被丢弃。 访问“已修改”的重复文件将从目标服务器正常恢复。

公开(公告)号：US20090204650A1

公开(公告)日：2009-08-13

申请号：US12268575

申请日：2008-11-11

申请人： Thomas K. Wong ,  Ron S. Vogel

发明人： Thomas K. Wong ,  Ron S. Vogel

IPC分类号： G06F12/00 ,  G06F17/30 ,  G06F12/16

CPC分类号： G06F16/1744

摘要： A method and apparatus for removing duplicated data in a file system utilizing copy-on-write storage tiers. A synthetic namespace is created via file virtualization, and is comprised of one or more file systems. Deduplication is applied at the namespace level and on all of the file systems comprising the synthetic namespace. A set of storage policies selects a set of files from the namespace that become the candidates for deduplication. The entire chosen set is migrated to a Copy-On-Write (COW) storage tier. This Copy-On-Write storage tier may be a virtual storage tier that resides within another physical storage tier (such as tier-1 or tier-2 storage). Each file stored in a Copy-On-Write storage tier is deduped, regardless of whether there is any file with identical contents in the set or in the COW storage tier. After deduplication, the deduped file becomes a sparse file where all the files storage space is reclaimed while all the file's attributes, including size, remain. A copy of each file that is deduped is left as a mirror copy and is stored in a mirror server. If two mirror copies have identical contents, only one mirror copy will be stored in the mirror server. Read access to a file in the COW storage tier (COW file) is redirected to its mirror copy if the file is deduped. When the first write to a COW file is received, the mirror copy stored in the mirror server is copied as the contents of the COW file, and the association from the COW file to its mirror copy is discarded. Thereafter, access to the “un-deduped” file will resume normally from the COW file.

摘要翻译： 一种利用写时存储层复制在文件系统中去除重复数据的方法和装置。 通过文件虚拟化创建合成命名空间，并由一个或多个文件系统组成。 在命名空间级别和包含合成命名空间的所有文件系统上应用重复数据消除。 一组存储策略从命名空间中选择一组成为重复数据删除候选的文件。 整个选择的集合将迁移到写时复制（COW）存储层。 该写时复写存储层可以是驻留在另一个物理存储层（例如一层或二层存储）中的虚拟存储层。 存储在写时复制存储层中的每个文件都被重复数据删除，无论是否存在在集合或COW存储层中具有相同内容的任何文件。 重复数据删除后，重复数据删除的文件将成为一个稀疏文件，其中所有文件的存储空间都被回收，而所有文件的属性（包括大小）仍然保留。 重复数据删除的每个文件的副本留作镜像副本，并存储在镜像服务器中。 如果两个镜像副本具有相同的内容，则只有一个镜像副本将存储在镜像服务器中。 如果文件被重复数据删除，则对COW存储层（COW文件）中的文件的读访问权重定向到其镜像副本。 当接收到对COW文件的第一次写入时，存储在镜像服务器中的镜像副本被复制为COW文件的内容，并且从COW文件到其镜像副本的关联被丢弃。 此后，访问“未重新排除的”文件将从COW文件正常恢复。

公开(公告)号：US08682916B2

公开(公告)日：2014-03-25

申请号：US12126129

申请日：2008-05-23

申请人： Thomas K. Wong ,  Ron S. Vogel

发明人： Thomas K. Wong ,  Ron S. Vogel

IPC分类号： G06F7/00 ,  G06F17/30

CPC分类号： H04L67/06 ,  G06F17/30197 ,  G06F17/30227 ,  H04L67/1095

摘要： A plurality of network file manager switches interoperate to provide remote file virtualization. Copies of file data and/or metadata are maintained at a central site and at one or more remote sites. The network file manager switch at the remote site may satisfy certain client requests locally without having to contact the network file manager switch at the central site. A global namespace is maintained and is communicated to all network file manager switches.

摘要翻译： 多个网络文件管理器交换机互操作以提供远程文件虚拟化。 文件数据和/或元数据的副本保存在中心站点和一个或多个远程站点。 远程站点的网络文件管理器交换机可以在本地满足某些客户端请求，而不必与中心站点的网络文件管理器交换机联系。 维护全局命名空间，并将其传递给所有网络文件管理器交换机。

公开(公告)号：US20090204649A1

公开(公告)日：2009-08-13

申请号：US12268573

申请日：2008-11-11

申请人： Thomas K. Wong ,  Ron S. Vogel

发明人： Thomas K. Wong ,  Ron S. Vogel

IPC分类号： G06F12/16 ,  G06F17/30 ,  G06F12/00

CPC分类号： G06F17/30153

摘要： A method and apparatus for removing duplicated data in a file system utilizing the concept of storage tiers. A synthetic namespace is created via file virtualization, and is comprised of one or more file systems. Deduplication is applied at the namespace level and on all of the file systems comprising the synthetic namespace. All files in a file system in a higher storage tier whose contents are identical to at least one other file in the synthetic namespace are moved to a destination file system in a lower storage tier. For each set of duplicated files that are moved from the original servers, a single instance copy of the file is left behind as a mirror copy. Read access to a duplicated file is redirected to its mirror copy. When the first write to a duplicated file is received, the association from the duplicated file stored in the destination server to its mirror copy that is stored in the origin server is discarded. Access to the “modified” duplicated file will then resume normally from the destination server.

摘要翻译： 一种利用存储层概念去除文件系统中的重复数据的方法和装置。 通过文件虚拟化创建合成命名空间，并由一个或多个文件系统组成。 在命名空间级别和包含合成命名空间的所有文件系统上应用重复数据消除。 内容与合成命名空间中至少一个其他文件相同的较高存储层中的文件系统中的所有文件将移动到较低存储层中的目标文件系统。 对于从原始服务器移动的每组复制文件，文件的单个实例副本将作为镜像副本留下。 对重复文件的读取访问权限被重定向到其镜像副本。 当接收到对重复文件的第一次写入时，从存储在目的地服务器中的复制文件到存储在原始服务器中的镜像副本的关联被丢弃。 访问“已修改”的重复文件将从目标服务器正常恢复。

公开(公告)号：US20090094252A1

公开(公告)日：2009-04-09

申请号：US12126129

申请日：2008-05-23

申请人： Thomas K. Wong ,  Ron S. Vogel

发明人： Thomas K. Wong ,  Ron S. Vogel

IPC分类号： G06F17/30

CPC分类号： H04L67/06 ,  G06F17/30197 ,  G06F17/30227 ,  H04L67/1095

摘要： A plurality of network file manager switches interoperate to provide remote file virtualization. Copies of file data and/or metadata are maintained at a central site and at one or more remote sites. The network file manager switch at the remote site may satisfy certain client requests locally without having to contact the network file manager switch at the central site. A global namespace is maintained and is communicated to all network file manager switches.

摘要翻译： 多个网络文件管理器交换机互操作以提供远程文件虚拟化。 文件数据和/或元数据的副本保存在中心站点和一个或多个远程站点。 远程站点的网络文件管理器交换机可以在本地满足某些客户端请求，而不必与中心站点的网络文件管理器交换机联系。 维护全局命名空间，并将其传递给所有网络文件管理器交换机。