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    • 7. 发明申请
    • PASS-THROUGH WRITE POLICIES OF FILES IN DISTRIBUTED STORAGE MANAGEMENT
    • 通过分布式存储管理中的文件通过写入策略
    • US20070266056A1
    • 2007-11-15
    • US11382464
    • 2006-05-09
    • Christopher StaceyEyal Zimran
    • Christopher StaceyEyal Zimran
    • G06F17/30
    • G06F17/30221Y10S707/99953Y10S707/99954
    • A hierarchical storage system includes file servers and a policy engine server. Offline attributes are added to file system inodes in a primary file server, file system parameters are added in the primary server, offline read and write access method fields are added to a connection database, and the primary file server uses these attributes and parameters for selecting a particular read method or write method for access to an offline file or section of an offline file. The write methods follow a “write recall full” policy, a “pass-through write” policy, a “pass-through multi-version” policy, or a “directory write pass-through” policy. The pass-through multi-version policy results in a new offline version of a file each time that a client opens and writes to a multi-version file. The directory write pass-through policy results in a new offline file when a file is created within a write pass-through directory.
    • 分层存储系统包括文件服务器和策略引擎服务器。 离线属性被添加到主文件服务器中的文件系统inode中,文件系统参数被添加到主服务器中,离线读写访问方法字段被添加到连接数据库,主文件服务器使用这些属性和参数来选择 用于访问脱机文件或脱机文件部分的特定读取方法或写入方法。 写入方法遵循“写回调完整”策略,“直通写入”策略,“直通多版本”策略或“目录写入传递”策略。 每次客户端打开和写入多版本文件时,传递多版本策略会导致文件的新脱机版本。 当在写入直通目录中创建文件时,目录写入传递策略会导致新的脱机文件。
    • 8. 发明申请
    • Primary stub file retention and secondary retention coordination in a hierarchical storage system
    • 分层存储系统中的主存根文件保留和辅助保留协调
    • US20070179990A1
    • 2007-08-02
    • US11343313
    • 2006-01-31
    • Eyal ZimranChristian ChubaChristopher StaceyMary Walker
    • Eyal ZimranChristian ChubaChristopher StaceyMary Walker
    • G06F17/30
    • G06F17/30221G06F17/30085G06F17/30153
    • A protected file is retained in secondary storage for a retention period, and a corresponding stub file is retained in primary storage for the retention period. The stub file retains attributes of the file indicating a location of the file data in the secondary storage and indicting that the stub file is to be retained for the retention period. A system administrator may instruct a primary file server that a secondary file server supports retention based protection and it is desired to protect stub files corresponding to protected files that are migrated to the secondary file server. The primary file server may request the secondary file server to return a protection status of the file after migration. This enables automatic policy-based migration to both file level retention (FLR) and non-FLR retention protected secondary storage from diverse applications accessing FLR or non-FLR files in the primary storage.
    • 受保护的文件保留在辅助存储器中保留期限,并且相应的存根文件将保留在主存储中以保留期限。 存根文件保留文件的属性,该属性指示辅助存储器中的文件数据的位置,并指示在保留期间保留存根文件。 系统管理员可以指示主文件服务器辅助文件服务器支持基于保留的保护,并且希望保护对应于被迁移到辅助文件服务器的受保护文件的存根文件。 主文件服务器可能会请求辅助文件服务器在迁移后返回文件的保护状态。 这样可以实现基于策略的自动迁移,可以从访问主存储中的FLR或非FLR文件的各种应用程序的文件级别保留(FLR)和非FLR保留保护的辅助存储进行迁移。
    • 10. 发明申请
    • Multi-protocol namespace server
    • 多协议命名空间服务器
    • US20070038697A1
    • 2007-02-15
    • US11195946
    • 2005-08-03
    • Eyal ZimranChristopher StaceyStephen FridellaSorin Faibish
    • Eyal ZimranChristopher StaceyStephen FridellaSorin Faibish
    • G06F15/16
    • G06F16/1827G06F16/166
    • A namespace server translates client requests for access to files referenced by pathnames in a client-server namespace into requests for access to files referenced by pathnames in a backend NAS network namespace. The namespace server also translates between different file access protocols. The namespace server may change the translation of a client-server network pathname from an old backend NAS network pathname to a new backend NAS network pathname for file migration without disruption to client access during file migration for load balancing or for a more appropriate service level. Client access can also be routed automatically and transparently to replicas in case of server or site failures. The namespace server may create the appearance of a virtual file system that contains multiple physical servers, a virtual share that contains physical shares from different servers, directories that contain files on different servers, and files that contain data from files on different servers.
    • 命名空间服务器将访问由客户机 - 服务器命名空间中的路径名引用的文件的客户端请求转换为访问由后端NAS网络命名空间中的路径名引用的文件的请求。 命名空间服务器还可以在不同的文件访问协议之间进行转换。 命名空间服务器可以将客户端 - 服务器网络路径名从旧的后端NAS网络路径名转换为用于文件迁移的新的后端NAS网络路径名,而不会在文件迁移期间客户端访问中断负载平衡或更适合的服务级别。 客户端访问也可以在服务器或站点故障的情况下自动和透明地路由到副本。 命名空间服务器可以创建包含多个物理服务器的虚拟文件系统的外观,包含来自不同服务器的物理共享的虚拟共享,包含不同服务器上的文件的目录以及包含来自不同服务器上的文件的数据的文件。