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1. 发明授权

US07577692B1 System and method for reserving space to guarantee file writability in a file system supporting persistent consistency point images 有权
标题翻译：用于保留空间的系统和方法，以保证在支持持久一致性点图像的文件系统中的文件可写性
公开(公告)号：US07577692B1
公开(公告)日：2009-08-18
申请号：US10423391
申请日：2003-04-25
申请人： Peter F. Corbett , Cheryl Thompson , Robert M. English , Jeffrey L. Heller
发明人： Peter F. Corbett , Cheryl Thompson , Robert M. English , Jeffrey L. Heller
IPC分类号： G06F17/30
CPC分类号： G06F17/30067 , G06F11/1471 , Y10S707/99953 , Y10S707/99956
摘要： The present invention provides a system and method for reserving space to guarantee file writability in a file system supporting PCPIs. An administrator of a storage system implants a set of space reservation policies to ensure that clients of the storage system do not receive an out of space error in response to overwriting a section of a particular file.
摘要翻译：本发明提供了一种用于保留空间以保证在支持PCPI的文件系统中的文件可写性的系统和方法。存储系统的管理员注入一组空间预留策略，以确保存储系统的客户端响应于覆盖特定文件的一部分而不会收到空间不足的错误。

2. 发明授权

US07930493B1 System and method for record retention date in a write once read many storage system 有权
标题翻译：记录保存日期的系统和方法在一次读取多个存储系统中
公开(公告)号：US07930493B1
公开(公告)日：2011-04-19
申请号：US12120727
申请日：2008-05-15
申请人： William P. McGovern , Jeffrey L. Heller
发明人： William P. McGovern , Jeffrey L. Heller
IPC分类号： G06F12/00
CPC分类号： G06F3/0643 , G06F3/0623 , G06F3/067 , G06F17/30085 , G06F17/30188 , G06F21/78 , G06F2216/09 , Y10S707/99953 , Y10S707/99955
摘要： This invention provides a specified retention date within a data set that is locked against deletion or modification within a WORM storage implementation. This retention date scheme does not utilize any proprietary application program interfaces (APIs) or protocols, but rather, employs native functionality within conventional file (or other data containers, data sets or block-based logical unit numbers) properties available in commonly used operating systems. In an illustrative embodiment, the retention date/time is calculated by querying the file's last-modified time prior to commit, adding the retention period to this value and thereby deriving a retention date after which the file can be released from WORM. Prior to commit, the computed retention date is stored in the file's “last access time” property/attribute field, or another metadata field that remains permanently associated with the file and that, in being used for retention date, does not interfere with file management in a WORM state. Since this field is not utilized in a WORM context, it can be adapted to store this date. Once stored, the retention date in this field is locked against modification. Where extension (never reduction) of a retention period is desired, the last access time field be updated, wherein the new retention period is added to the existing last access time value to derive a new, later retention date for the file. Upon expiry of the retention date, the system allows deletion of the expired WORM file/data set.
摘要翻译：本发明提供在WORM存储实现中锁定以防止删除或修改的数据集内的指定保留日期。此保留日期方案不使用任何专有的应用程序接口（API）或协议，而是在常用文件（或其他数据容器，数据集或基于块的逻辑单元编号）中使用常规操作系统中可用的属性的本机功能。在说明性实施例中，通过在提交之前查询文件的最后修改时间来计算保留日期/时间，将保留期间添加到该值，从而导出可以从WORM释放该文件的保留日期。在提交之前，计算的保留日期存储在文件的“最后访问时间”属性/属性字段中，或与文件永久关联的另一个元数据字段，并且在用于保留日期时不会干扰文件管理在WORM状态。由于这个字段在WORM上下文中没有被使用，所以它可以适应于存储这个日期。一旦存储，此字段中的保留日期将被锁定以防修改。在期望保留期限的延长（永不减少）的情况下，最后访问时间字段被更新，其中新的保留期被添加到现有的最后访问时间值以导出该文件的新的较后的保留日期。保留期限届满后，系统允许删除过期的WORM文件/数据集。

3. 发明授权

US07155460B2 Write-once-read-many storage system and method for implementing the same 有权
标题翻译：一读多读存储系统及其实现方法
公开(公告)号：US07155460B2
公开(公告)日：2006-12-26
申请号：US10391245
申请日：2003-03-18
申请人： William P. McGovern , Jeffrey L. Heller , J. Christopher Wagner
发明人： William P. McGovern , Jeffrey L. Heller , J. Christopher Wagner
IPC分类号： G06F17/30
CPC分类号： G06F17/30188 , G06F3/0643 , Y10S707/99952 , Y10S707/99953
摘要： A write-once-read-many (WORM) storage system that employs large-capacity and relatively inexpensive disks in connection with a file system on a file server is provided. The file system contains most or all of the required WORM functionality so as to impose a minimal footprint on client applications, client operating systems and open protocols if desired. The system is organized around WORM storage volumes that contain files that, when committed to WORM storage, cannot be deleted or modified. Any file path or directory tree structure used to identify the file within the WORM volume is locked and cannot be deleted. In one embodiment, the administrator creates a WORM volume, capable of storing designated WORM files. The client then creates an appropriate WORM file using the appropriate protocol semantics. The file is written to the volume and committed by transitioning the file attributes from a not-read-only to a read-only state. The file system recognizes the persistently stored WORM attribute of any file in a WORM volume as WORM file. Henceforth, any attempt to modify the file attributes, write to the file, or delete the file, by clients, administrators or other entities is rejected and a request denied message is returned to the attempting party
摘要翻译：提供了一次多次写入（WORM）存储系统，该系统使用与文件服务器上的文件系统相关联的大容量且相对便宜的磁盘。文件系统包含大部分或全部所需的WORM功能，以便在客户端应用程序，客户端操作系统和开放式协议（如果需要）上施加最小的占用空间。系统围绕包含文件的WORM存储卷组织，当提交到WORM存储时，不能删除或修改。用于标识WORM卷中的文件的任何文件路径或目录树结构都被锁定，不能被删除。在一个实施例中，管理员创建能够存储指定的WORM文件的WORM卷。然后，客户端使用适当的协议语义创建一个适当的WORM文件。将文件写入卷并通过将文件属性从非只读状态转换为只读状态来提交。文件系统将WORM卷中任何文件的持久存储的WORM属性识别为WORM文件。此后，客户端，管理员或其他实体的任何修改文件属性，写入文件或删除文件的尝试都被拒绝，请求被拒绝的消息被返回给尝试方

4. 发明授权

US08332362B2 Write-once-read-many storage system and method for implementing the same 有权
标题翻译：一读多读存储系统及其实现方法
公开(公告)号：US08332362B2
公开(公告)日：2012-12-11
申请号：US11633805
申请日：2006-12-05
申请人： William P. McGovern , Jeffrey L. Heller , J. Christopher Wagner
发明人： William P. McGovern , Jeffrey L. Heller , J. Christopher Wagner
IPC分类号： G06F7/00 , G06F17/00
CPC分类号： G06F17/30188 , G06F3/0643 , Y10S707/99952 , Y10S707/99953
摘要： A write-once-read-many (WORM) storage system that employs large-capacity and relatively inexpensive disks in connection with a file system on a file server is provided. The file system contains most or all of the required WORM functionality so as to impose a minimal footprint on client applications, client operating systems and open protocols if desired. The system is organized around WORM storage volumes that contain files that, when committed to WORM storage, cannot be deleted or modified. Any file path or directory tree structure used to identify the file within the WORM volume is locked and cannot be deleted. In one embodiment, the administrator creates a WORM volume, capable of storing designated WORM files. The client then creates an appropriate WORM file using the appropriate protocol semantics. The file is written to the volume and committed by transitioning the file attributes from a not-read-only to a read-only state. The file system recognizes the persistently stored WORM attribute of any file in a WORM volume as WORM file. Henceforth, any attempt to modify the file attributes, write to the file, or delete the file, by clients, administrators or other entities is rejected and a request denied message is returned to the attempting party.
摘要翻译：提供了一次多次写入（WORM）存储系统，该系统使用与文件服务器上的文件系统相关联的大容量且相对便宜的磁盘。文件系统包含大部分或全部所需的WORM功能，以便在客户端应用程序，客户端操作系统和开放式协议（如果需要）上施加最小的占用空间。系统围绕包含文件的WORM存储卷组织，当提交到WORM存储时，不能删除或修改。用于标识WORM卷中的文件的任何文件路径或目录树结构都被锁定，不能被删除。在一个实施例中，管理员创建能够存储指定的WORM文件的WORM卷。然后，客户端使用适当的协议语义创建一个适当的WORM文件。将文件写入卷并通过将文件属性从非只读状态转换为只读状态来提交。文件系统将WORM卷中任何文件的持久存储的WORM属性识别为WORM文件。此后，客户端，管理员或其他实体的任何修改文件属性，写入文件或删除文件的尝试都被拒绝，请求被拒绝的消息被返回给尝试方。

5. 发明授权

US07590807B2 System and method for record retention date in a write once read many storage system 有权
标题翻译：记录保存日期的系统和方法在一次读取多个存储系统中
公开(公告)号：US07590807B2
公开(公告)日：2009-09-15
申请号：US10701373
申请日：2003-11-03
申请人： William P. McGovern , Jeffrey L. Heller
发明人： William P. McGovern , Jeffrey L. Heller
IPC分类号： G06F12/00
CPC分类号： G06F3/0643 , G06F3/0623 , G06F3/067 , G06F17/30085 , G06F17/30188 , G06F21/78 , G06F2216/09 , Y10S707/99953 , Y10S707/99955
摘要： This invention provides a specified retention date within a data set that is locked against deletion or modification within a WORM storage implementation. This retention date scheme does not utilize any proprietary application program interfaces (APIs) or protocols, but rather, employs native functionality within conventional file (or other data containers, data sets or block-based logical unit numbers) properties available in commonly used operating systems. In an illustrative embodiment, the retention date/time is calculated by querying the file's last-modified time prior to commit, adding the retention period to this value and thereby deriving a retention date after which the file can be released from WORM. Prior to commit, the computed retention date is stored in the file's “last access time” property/attribute field, or another metadata field that remains permanently associated with the file and that, in being used for retention date, does not interfere with file management in a WORM state. Since this field is not utilized in a WORM context, it can be adapted to store this date. Once stored, the retention date in this field is locked against modification. Where extension (never reduction) of a retention period is desired, the last access time field be updated, wherein the new retention period is added to the existing last access time value to derive a new, later retention date for the file. Upon expiry of the retention date, the system allows deletion of the expired WORM file/data set.
摘要翻译：本发明提供在WORM存储实现中锁定以防止删除或修改的数据集内的指定保留日期。此保留日期方案不使用任何专有的应用程序接口（API）或协议，而是在常用文件（或其他数据容器，数据集或基于块的逻辑单元编号）中使用常规操作系统中可用的属性的本机功能。在说明性实施例中，通过在提交之前查询文件的最后修改时间来计算保留日期/时间，将保留期间添加到该值，从而导出可以从WORM释放该文件的保留日期。在提交之前，计算的保留日期存储在文件的“最后访问时间”属性/属性字段中，或与文件永久关联的另一个元数据字段，并且在用于保留日期时不会干扰文件管理在WORM状态。由于这个字段在WORM上下文中没有被使用，所以它可以适应于存储这个日期。一旦存储，此字段中的保留日期将被锁定以防修改。在期望保留期限的延长（永不减少）的情况下，最后访问时间字段被更新，其中新的保留期被添加到现有的最后访问时间值以导出该文件的新的较后的保留日期。保留期限届满后，系统允许删除过期的WORM文件/数据集。

6. 发明授权

US07366834B2 System and method for record retention date in a write once read many storage system 有权
标题翻译：记录保存日期的系统和方法在一次读取多个存储系统中
公开(公告)号：US07366834B2
公开(公告)日：2008-04-29
申请号：US11653701
申请日：2007-01-16
申请人： William P. McGovern , Jeffrey L. Heller
发明人： William P. McGovern , Jeffrey L. Heller
IPC分类号： G06F12/00
CPC分类号： G06F3/0643 , G06F3/0623 , G06F3/067 , G06F17/30085 , G06F17/30188 , G06F21/78 , G06F2216/09 , Y10S707/99953 , Y10S707/99955
摘要： This invention provides a specified retention date within a data set that is locked against deletion or modification within a WORM storage implementation. This retention date scheme does not utilize any proprietary application program interfaces (APIs) or protocols, but rather, employs native functionality within conventional file (or other data containers, data sets or block-based logical unit numbers) properties available in commonly used operating systems. In an illustrative embodiment, the retention date/time is calculated by querying the file's last-modified time prior to commit, adding the retention period to this value and thereby deriving a retention date after which the file can be released from WORM. Prior to commit, the computed retention date is stored in the file's “last access time” property/attribute field, or another metadata field that remains permanently associated with the file and that, in being used for retention date, does not interfere with file management in a WORM state. Since this field is not utilized in a WORM context, it can be adapted to store this date. Once stored, the retention date in this field is locked against modification. Where extension (never reduction) of a retention period is desired, the last access time field be updated, wherein the new retention period is added to the existing last access time value to derive a new, later retention date for the file. Upon expiry of the retention date, the system allows deletion of the expired WORM file/data set.
摘要翻译：本发明提供在WORM存储实现中锁定以防止删除或修改的数据集内的指定保留日期。此保留日期方案不使用任何专有的应用程序接口（API）或协议，而是在常用文件（或其他数据容器，数据集或基于块的逻辑单元编号）中使用常规操作系统中可用的属性的本机功能。在说明性实施例中，通过在提交之前查询文件的最后修改时间来计算保留日期/时间，将保留期间添加到该值，从而导出可以从WORM释放该文件的保留日期。在提交之前，计算的保留日期存储在文件的“最后访问时间”属性/属性字段中，或与文件永久关联的另一个元数据字段，并且在用于保留日期时不会干扰文件管理在WORM状态。由于这个字段在WORM上下文中没有被使用，所以它可以适应于存储这个日期。一旦存储，此字段中的保留日期将被锁定以防修改。在期望保留期限的延长（永不减少）的情况下，最后访问时间字段被更新，其中新的保留期被添加到现有的最后访问时间值以导出该文件的新的较后的保留日期。保留期限届满后，系统允许删除过期的WORM文件/数据集。

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