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1. 发明授权

US07284016B2 Client-server protocol for directory access of snapshot file systems in a storage system 有权
标题翻译：存储系统中快照文件系统的目录访问的客户机 - 服务器协议
公开(公告)号：US07284016B2
公开(公告)日：2007-10-16
申请号：US10308445
申请日：2002-12-03
申请人： Dinesh Venkatesh , Xiaoye Jiang , Jiannan Zheng , Uresh Vahalia
发明人： Dinesh Venkatesh , Xiaoye Jiang , Jiannan Zheng , Uresh Vahalia
IPC分类号： G06F12/00
CPC分类号： G06F11/1435 , G06F17/30067 , Y10S707/99953
摘要： Internally, a production file system and each of its related snapshot file systems have a common file system identifier (fid′) and a unique respective file system identifier (fsid′). Externally, the production file system and each of its related snapshot file systems has a common file system identifier (fsid) and a unique respective file identifier (fid). For example, the “fsid” and “fid” for the production and snapshot file systems are interchanged between a client-server protocol layer and a logical volume layer in a file server. Moreover, the file handle for an object indicates whether an object is in either a production file system that is not configured to have related snapshots, a production file system that is configured to have related snapshots, or a snapshot file system. When the object is in a snapshot file system, the file handle also indicates the related production file system.
摘要翻译：在内部，生产文件系统及其每个相关快照文件系统具有公共文件系统标识符（fid'）和唯一的相应文件系统标识符（fsid'）。在外部，生产文件系统及其每个相关的快照文件系统具有公共文件系统标识符（fsid）和唯一的相应文件标识符（fid）。例如，生产和快照文件系统的“fsid”和“fid”在文件服务器中的客户端 - 服务器协议层和逻辑卷层之间互换。此外，对象的文件句柄指示对象是处于未配置为具有相关快照的生产文件系统，被配置为具有相关快照的生产文件系统还是快照文件系统。当对象在快照文件系统中时，文件句柄也指示相关的生产文件系统。

2. 发明授权

US06571259B1 Preallocation of file system cache blocks in a data storage system 有权
标题翻译：在数据存储系统中预分配文件系统缓存块
公开(公告)号：US06571259B1
公开(公告)日：2003-05-27
申请号：US09669347
申请日：2000-09-26
申请人： Jiannan Zheng , Xiaoye Jiang , Uresh Vahalia
发明人： Jiannan Zheng , Xiaoye Jiang , Uresh Vahalia
IPC分类号： G06F1200
CPC分类号： G06F17/30067 , Y10S707/99953 , Y10S707/99956
摘要： A file server provides transaction processing capabilities previously supplied by the operating system of a host computer. On-disk file system metadata is changed only at commit time, and a transaction log protects the transition. The disk state can only be a consistent state, resulting from a commit operation. All disk-block reservation and pre-allocation mapping are in the memory, and after a crash, they are automatically discarded. The file server therefore relieves the client of processing burden and also reduces network traffic. In addition, the file server can more efficiently perform the transaction processing capabilities and reduce the frequency of access to storage by judicious allocation of file system blocks and transfer of file system blocks between file system objects, cache memory, and the transaction log. The differentiation between preallocation states and allocation states of in-memory file system blocks also permits application programs to more efficiently transfer data between files.
摘要翻译：文件服务器提供先前由主机的操作系统提供的事务处理能力。磁盘文件系统元数据仅在提交时更改，并且事务日志保护转换。磁盘状态只能由一个提交操作产生的一致状态。所有磁盘块预留和预分配映射都位于内存中，崩溃后将自动丢弃。因此，文件服务器可以减轻客户端的处理负担，并减少网络流量。此外，文件服务器可以更有效地执行事务处理能力，并通过文件系统块的明智分配和文件系统对象，高速缓冲存储器和事务日志之间的文件系统块的传送来降低访问存储的频率。预分配状态和内存中文件系统块的分配状态之间的区别也允许应用程序在文件之间更有效地传输数据。

3. 发明授权

US07555504B2 Maintenance of a file version set including read-only and read-write snapshot copies of a production file 有权
标题翻译：维护包含生产文件的只读和读写快照副本的文件版本集
公开(公告)号：US07555504B2
公开(公告)日：2009-06-30
申请号：US10668546
申请日：2003-09-23
申请人： Peter Bixby , Sachin Mullick , Jiannan Zheng , Xiaoye Jiang , Sorin Faibish
发明人： Peter Bixby , Sachin Mullick , Jiannan Zheng , Xiaoye Jiang , Sorin Faibish
IPC分类号： G06F17/30
CPC分类号： G06F17/30088 , Y10S707/99953 , Y10S707/99954
摘要： Read-only and read-write snapshot copies of a production file in a Unix-based file system are organized as a version set of file inodes and shared file blocks. Version pointers and branch pointers link the inodes. Initially the production file can have all its blocks preallocated or it can be a sparse file having only an inode and its last data block. A protocol is provided for creating read-only and read-write snapshots, deleting snapshots, restoring the production file with a specified snapshot, refreshing a specified snapshot, and naming the snapshots. Block pointers are marked with a flag indicating whether or not the pointed-to block is owned by the parent inode. A non-owner marking is inherited by all of the block's descendants. The block ownership controls the copying of indirect blocks when writing to the production file, and also controls deallocation and passing of blocks when deleting a read-only snapshot.
摘要翻译：基于Unix的文件系统中的生产文件的只读和读写快照副本被组织为文件inode和共享文件块的版本集。版本指针和分支指针链接inode。最初，生产文件可以预先分配其所有块，也可以是只有一个inode及其最后一个数据块的稀疏文件。提供了一种协议，用于创建只读和读写快照，删除快照，使用指定的快照还原生产文件，刷新指定的快照以及命名快照。块指针标有一个标志，指示指向块是否由父节点所拥有。非所有者标记由所有块的后代继承。块所有权控制在写入生产文件时复制间接块，并在删除只读快照时控制块的释放和传递。

4. 发明申请

US20050065986A1 Maintenance of a file version set including read-only and read-write snapshot copies of a production file 有权
标题翻译：维护包含生产文件的只读和读写快照副本的文件版本集
公开(公告)号：US20050065986A1
公开(公告)日：2005-03-24
申请号：US10668546
申请日：2003-09-23
申请人： Peter Bixby , Sachin Mullick , Jiannan Zheng , Xiaoye Jiang , Sorin Faibish
发明人： Peter Bixby , Sachin Mullick , Jiannan Zheng , Xiaoye Jiang , Sorin Faibish
IPC分类号： G06F17/30
CPC分类号： G06F17/30088 , Y10S707/99953 , Y10S707/99954
摘要： Read-only and read-write snapshot copies of a production file in a Unix-based file system are organized as a version set of file inodes and shared file blocks. Version pointers and branch pointers link the inodes. Initially the production file can have all its blocks preallocated or it can be a sparse file having only an inode and its last data block. A protocol is provided for creating read-only and read-write snapshots, deleting snapshots, restoring the production file with a specified snapshot, refreshing a specified snapshot, and naming the snapshots. Block pointers are marked with a flag indicating whether or not the pointed-to block is owned by the parent inode. A non-owner marking is inherited by all of the block's descendants. The block ownership controls the copying of indirect blocks when writing to the production file, and also controls deallocation and passing of blocks when deleting a read-only snapshot.
摘要翻译：基于Unix的文件系统中的生产文件的只读和读写快照副本被组织为文件inode和共享文件块的版本集。版本指针和分支指针链接inode。最初，生产文件可以预先分配其所有块，也可以是只有一个inode及其最后一个数据块的稀疏文件。提供了一种协议，用于创建只读和读写快照，删除快照，使用指定的快照还原生产文件，刷新指定的快照以及命名快照。块指针标有一个标志，指示指向块是否由父节点所拥有。非所有者标记由所有块的后代继承。块所有权控制在写入生产文件时复制间接块，并在删除只读快照时控制块的释放和传递。

5. 发明申请

US20070179934A1 Method and apparatus for performing bulk file system attribute retrieval 有权
标题翻译：用于执行批量文件系统属性检索的方法和装置
公开(公告)号：US20070179934A1
公开(公告)日：2007-08-02
申请号：US11341353
申请日：2006-01-27
申请人： Ivan Basov , Christian Chuba , Stephen Fridella , Uday Gupta , Xiaoye Jiang , Christopher Stacey , Jiannan Zheng , Eyal Zimran
发明人： Ivan Basov , Christian Chuba , Stephen Fridella , Uday Gupta , Xiaoye Jiang , Christopher Stacey , Jiannan Zheng , Eyal Zimran
IPC分类号： G06F17/30
CPC分类号： G06F17/30336 , G06F17/30412 , G06F17/30489
摘要： Accordingly a method and interface allows an attribute data base used by an Information Manager to be quickly populated and accurately maintained. A single Bulk Attribute Retrieval Request triggers the primary storage device to collect object attribute information. The method allows for selective collection of objects and attributes by providing filters and attribute lists in the Requests. The Request may be used to provide an incremental scan with appropriate time stamp filtering. In addition, the size of the results can be controlled by the IM by eliminating attributes that are not of interest to the IM. The Request is advantageously issued over a FileMover interface, which is an HTTP connection, and encoded in XML, allowing the IM to easily customize the Request as desired.
摘要翻译：因此，方法和接口允许快速填充并准确地维护信息管理器使用的属性数据库。单个批量属性检索请求触发主存储设备收集对象属性信息。该方法允许通过在请求中提供过滤器和属性列表来选择性地收集对象和属性。请求可用于通过适当的时间戳过滤提供增量扫描。此外，结果的大小可以通过IM消除IM不感兴趣的属性来控制。该请求有利地通过FileMover接口发布，该接口是HTTP连接，并以XML编码，允许IM根据需要容易地定制请求。

6. 发明申请

US20050066095A1 Multi-threaded write interface and methods for increasing the single file read and write throughput of a file server 有权
标题翻译：多线程写入接口和增加单个文件读取和写入文件服务器吞吐量的方法
公开(公告)号：US20050066095A1
公开(公告)日：2005-03-24
申请号：US10668467
申请日：2003-09-23
申请人： Sachin Mullick , Jiannan Zheng , Xiaoye Jiang , Sorin Faibish , Peter Bixby
发明人： Sachin Mullick , Jiannan Zheng , Xiaoye Jiang , Sorin Faibish , Peter Bixby
IPC分类号： G06F12/00 , G06F12/14 , G06F17/30
CPC分类号： G06F17/30171 , G06F11/1466 , G06F2201/84
摘要： A write interface in a file server provides permission management for concurrent access to data blocks of a file, ensures correct use and update of indirect blocks in a tree of the file, preallocates file blocks when the file is extended, solves access conflicts for concurrent reads and writes to the same block, and permits the use of pipelined processors. For example, a write operation includes obtaining a per file allocation mutex (mutually exclusive lock), preallocating a metadata block, releasing the allocation mutex, issuing an asynchronous write request for writing to the file, waiting for the asynchronous write request to complete, obtaining the allocation mutex, committing the preallocated metadata block, and releasing the allocation mutex. Since no locks are held during the writing of data to the on-disk storage and this data write takes the majority of the time, the method enhances concurrency while maintaining data integrity.
摘要翻译：文件服务器中的写接口提供对并发访问文件数据块的权限管理，确保文件树中间接块的正确使用和更新，扩展文件时预分配文件块，解决并发读取的访问冲突并写入同一个块，并允许使用流水线处理器。例如，写入操作包括获得每个文件分配互斥（互斥锁），预先分配元数据块，释放分配互斥体，发出用于写入文件的异步写入请求，等待异步写入请求完成，获得分配互斥体，提交预先分配的元数据块，并释放分配互斥体。由于在将数据写入磁盘存储器期间没有锁定，并且此数据写入占用大部分时间，因此该方法在保持数据完整性的同时增强了并发性。

7. 发明授权

US07953819B2 Multi-protocol sharable virtual storage objects 有权
标题翻译：多协议共享的虚拟存储对象
公开(公告)号：US07953819B2
公开(公告)日：2011-05-31
申请号：US10646851
申请日：2003-08-22
申请人： Rui Liang , Jiannan Zheng , Mark K Ku , Xiaoye Jiang , Sorin Faibish
发明人： Rui Liang , Jiannan Zheng , Mark K Ku , Xiaoye Jiang , Sorin Faibish
IPC分类号： G06F15/16 , G06F7/00 , G06F17/00
CPC分类号： H04L67/1095 , G06F17/30067 , H04L29/06 , H04L67/1097 , H04L69/329
摘要： A storage object such as a virtual disk drive or a raw logical volume is contained in a UNIX compatible file so that the file containing the storage object can be exported using the NFS or CIFS protocol and shared among UNIX and MS Windows clients or servers. The storage object can be replicated and backed up using conventional file replication and backup facilities without disruption of client access to the storage object. For client access to data of the storage object, a software driver accesses the file containing the storage object. For example, a software driver called a virtual SCSI termination is used to access a file containing a virtual SCSI disk drive. Standard storage services use the SCSI over IP protocol to access the virtual SCSI termination. An IP replication or snapshot copy facility may access the file containing the virtual SCSI disk drive using a higher-level protocol.
摘要翻译：存储对象（如虚拟磁盘驱动器或原始逻辑卷）包含在UNIX兼容文件中，以便可以使用NFS或CIFS协议导出包含存储对象的文件，并在UNIX和MS Windows客户端或服务器之间共享。可以使用传统的文件复制和备份功能来复制和备份存储对象，而不会中断对存储对象的客户端访问。为了客户机访问存储对象的数据，软件驱动程序访问包含存储对象的文件。例如，称为虚拟SCSI终端的软件驱动程序用于访问包含虚拟SCSI磁盘驱动器的文件。标准存储服务使用SCSI over IP协议来访问虚拟SCSI终端。 IP复制或快照复制功能可以使用更高级别的协议访问包含虚拟SCSI磁盘驱动器的文件。

8. 发明申请

US20050044162A1 Multi-protocol sharable virtual storage objects 有权
标题翻译：多协议共享的虚拟存储对象
公开(公告)号：US20050044162A1
公开(公告)日：2005-02-24
申请号：US10646851
申请日：2003-08-22
申请人： Rui Liang , Jiannan Zheng , Mark Ku , Xiaoye Jiang , Sorin Faibish
发明人： Rui Liang , Jiannan Zheng , Mark Ku , Xiaoye Jiang , Sorin Faibish
IPC分类号： G06F17/30 , H04L29/06 , H04L29/08 , G06F15/167 , G06F7/00
CPC分类号： H04L67/1095 , G06F17/30067 , H04L29/06 , H04L67/1097 , H04L69/329
摘要： A storage object such as a virtual disk drive or a raw logical volume is contained in a UNIX compatible file so that the file containing the storage object can be exported using the NFS or CIFS protocol and shared among UNIX and MS Windows clients or servers. The storage object can be replicated and backed up using conventional file replication and backup facilities without disruption of client access to the storage object. For client access to data of the storage object, a software driver accesses the file containing the storage object. For example, a software driver called a virtual SCSI termination is used to access a file containing a virtual SCSI disk drive. Standard storage services use the iSCSI protocol to access the virtual SCSI termination. An IP replication or snapshot copy facility may access the file containing the virtual SCSI disk drive using a higher-level protocol.
摘要翻译：存储对象（如虚拟磁盘驱动器或原始逻辑卷）包含在UNIX兼容文件中，以便可以使用NFS或CIFS协议导出包含存储对象的文件，并在UNIX和MS Windows客户端或服务器之间共享。可以使用传统的文件复制和备份功能来复制和备份存储对象，而不会中断对存储对象的客户端访问。为了客户机访问存储对象的数据，软件驱动程序访问包含存储对象的文件。例如，称为虚拟SCSI终端的软件驱动程序用于访问包含虚拟SCSI磁盘驱动器的文件。标准存储服务使用iSCSI协议来访问虚拟SCSI终端。 IP复制或快照复制功能可以使用更高级别的协议访问包含虚拟SCSI磁盘驱动器的文件。

9. 发明授权

US08560569B2 Method and apparatus for performing bulk file system attribute retrieval 有权
标题翻译：用于执行批量文件系统属性检索的方法和装置
公开(公告)号：US08560569B2
公开(公告)日：2013-10-15
申请号：US11341353
申请日：2006-01-27
申请人： Ivan Basov , Christian J. Chuba , Stephen A. Fridella , Uday K. Gupta , Xiaoye Jiang , Christopher Stacey , Jiannan Zheng , Eyal Zimran
发明人： Ivan Basov , Christian J. Chuba , Stephen A. Fridella , Uday K. Gupta , Xiaoye Jiang , Christopher Stacey , Jiannan Zheng , Eyal Zimran
IPC分类号： G06F17/30
CPC分类号： G06F17/30336 , G06F17/30412 , G06F17/30489
摘要： Accordingly a method and interface allows an attribute data base used by an Information Manager to be quickly populated and accurately maintained. A single Bulk Attribute Retrieval Request triggers the primary storage device to collect object attribute information. The method allows for selective collection of objects and attributes by providing filters and attribute lists in the Requests. The Request may be used to provide an incremental scan with appropriate time stamp filtering. In addition, the size of the results can be controlled by the IM by eliminating attributes that are not of interest to the IM. The Request is advantageously issued over a FileMover interface, which is an HTTP connection, and encoded in XML, allowing the IM to easily customize the Request as desired.
摘要翻译：因此，方法和接口允许快速填充并准确地维护信息管理器使用的属性数据库。单个批量属性检索请求触发主存储设备收集对象属性信息。该方法允许通过在请求中提供过滤器和属性列表来选择性地收集对象和属性。请求可用于通过适当的时间戳过滤提供增量扫描。此外，结果的大小可以通过IM消除IM不感兴趣的属性来控制。该请求有利地通过FileMover接口发布，该接口是HTTP连接，并以XML编码，允许IM根据需要容易地定制请求。

10. 发明授权

US07010554B2 Delegation of metadata management in a storage system by leasing of free file system blocks and i-nodes from a file system owner 有权
公开(公告)号：US07010554B2
公开(公告)日：2006-03-07
申请号：US10116369
申请日：2002-04-04
申请人： Xiaoye Jiang , Gang Ma , Jiannan Zheng
发明人： Xiaoye Jiang , Gang Ma , Jiannan Zheng
IPC分类号： G06F17/30
CPC分类号： G06F17/30067 , Y10S707/99956
摘要： Metadata management in a file server or storage network is delegated from a primary data processor to a secondary data processor in order to reduce data traffic between the primary data processor and the secondary data processor. The primary data processor retains responsibility for managing locks upon objects in the file system that it owns, and also retains responsibility for allocation of free blocks and inodes of the file system. By leasing free blocks and inodes to the secondary and granting locks to the secondary, the secondary can perform the other metadata management tasks such as appending blocks to a file, truncating a file, creating a file, and deleting a file.

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