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1. 发明授权

US06651075B1 Support for multiple temporal snapshots of same volume 有权
标题翻译：支持同一卷的多个时间快照
公开(公告)号：US06651075B1
公开(公告)日：2003-11-18
申请号：US09505447
申请日：2000-02-16
申请人： Norbert P. Kusters , Luis Felipe Cabrera , Brian D. Andrew
发明人： Norbert P. Kusters , Luis Felipe Cabrera , Brian D. Andrew
IPC分类号： G06F1730
CPC分类号： G06F11/1448 , G06F2201/84 , Y10S707/99952 , Y10S707/99953 , Y10S707/99955
摘要： A system and method for more efficiently maintaining multiple temporal snapshots of a common base volume. When the base volume is modified, such as when existing data is overwritten with new data, that modification may affect two or more of the snapshots. Before the modification, the existing data is copied only to the differential file associated with the latest snapshot. When a region of a selected snapshot is read, the region is read from the selected snapshot's associated differential file. If the existing data is in the differential file, that data is returned to the reading process. If later snapshots have been taken, data associated with other parts of the region may be stored in one or more of the later differential files. If the differential file of the selected snapshot does not have data for each portion of the requested region, the mechanism continues by accessing each differential file associated with subsequent snapshots in temporal order from the earliest following the selected snapshot to the latest until either the region is complete or no later snapshots remain. Finally, if any part of the region was not filled in with data from one of the differential files, then that part of the region is read from the base volume.
摘要翻译：一种用于更有效地维护公共基本卷的多个时间快照的系统和方法。修改基本卷时，例如当现有数据被新数据覆盖时，该修改可能会影响两个或多个快照。在修改之前，现有数据只会复制到与最新快照关联的差分文件中。当读取所选快照的区域时，从所选快照的相关差异文件中读取该区域。如果现有数据在差分文件中，那么该数据将返回到读取过程。如果以后的快照已被采取，则与该区域的其他部分相关联的数据可以存储在一个或多个稍后的差分文件中。如果所选快照的差分文件不具有所请求区域的每个部分的数据，则该机制通过以从时间顺序访问与后续快照相关联的每个差异文件继续，从最早的选定快照到最新直到该区域是完成或不再存在快照。最后，如果区域的任何部分没有填充来自差分文件之一的数据，那么从基本卷中读取该区域的该部分。

2. 发明授权

US06473775B1 System and method for growing differential file on a base volume of a snapshot 有权
标题翻译：用于在快照的基本卷上生成差异文件的系统和方法
公开(公告)号：US06473775B1
公开(公告)日：2002-10-29
申请号：US09505450
申请日：2000-02-16
申请人： Norbert P. Kusters , Luis Felipe Cabrera , Brian D. Andrew
发明人： Norbert P. Kusters , Luis Felipe Cabrera , Brian D. Andrew
IPC分类号： G06F1200
CPC分类号： G06F3/0665 , G06F3/0608 , G06F3/061 , G06F3/0644 , G06F3/0683 , G06F9/50 , G06F2201/84
摘要： A system and method for creating a snapshot with a differential file maintained on the base volume that can grow as needed. When a snapshot is captured, free space is allocated on the base volume to receive the differential file. Writes to the base volume are allowed except to the free space allocated to the differential file. Then the snapshot is captured. After the snapshot process is complete, data that was originally present at the time the snapshot was captured may be copied to the differential file before it is modified. To grow the differential file out of its allocated space, new free space is selected from the free space currently on the base volume in conjunction with the free space at the time the snapshot was captured. The free space bitmap file of the snapshot volume may be used to identify the free space at the time the snapshot was captured.
摘要翻译：用于在基本卷上维护的可以根据需要增长的差异文件创建快照的系统和方法。捕获快照时，可以在基本卷上分配可用空间来接收差分文件。除了分配给差分文件的可用空间之外，允许对基本卷的写入。然后捕获快照。快照过程完成后，捕获快照时最初存在的数据可能会在修改之前复制到差分文件中。要从其分配的空间中增长差异文件，从当前基本卷上的可用空间以及捕获快照时的可用空间中选择新的可用空间。快照卷的可用空间位图文件可用于标识捕获快照时的可用空间。

3. 发明授权

US07334007B2 Volume migration 有权
标题翻译：卷迁移
公开(公告)号：US07334007B2
公开(公告)日：2008-02-19
申请号：US10738110
申请日：2003-12-16
申请人： Luis Felipe Cabrera , Catharine van Ingen , Norbert P. Kusters
发明人： Luis Felipe Cabrera , Catharine van Ingen , Norbert P. Kusters
IPC分类号： G06F17/00 , G06F12/00
CPC分类号： G06F17/30067 , Y10S707/99953 , Y10S707/99955 , Y10S707/99956
摘要： Systems and methods for performing an on-demand determination of a correct set of volumes to be exported are described. A disk platter is defined to be the unit of volume migration. Volumes are added to the platter based on whether or not the volume coexists on a disk containing a volume to be exported.
摘要翻译：描述用于执行要导出的正确的一组卷的按需确定的系统和方法。磁盘盘被定义为容量迁移的单位。根据卷是否共存在包含要导出的卷的磁盘上，将卷添加到拼盘中。

4. 发明授权

US06629202B1 Volume stacking model 有权
标题翻译：卷堆叠模型
公开(公告)号：US06629202B1
公开(公告)日：2003-09-30
申请号：US09451219
申请日：1999-11-29
申请人： Luis Felipe Cabrera , Catharine van Ingen , Norbert P. Kusters
发明人： Luis Felipe Cabrera , Catharine van Ingen , Norbert P. Kusters
IPC分类号： G06F1200
CPC分类号： G06F3/0614 , G06F3/0665 , G06F3/0689 , G06F11/2087
摘要： Systems and methods for creating and maintaining a stacked volume using one more volumes or extents of a storage subsystem is disclosed. The systems and methods define a hierarchy of operations and components that process operations. The hierarchy includes plex operations for an entire volume, mapping operations that concatenate volumes and/or extents, plex operations for a volume or extent that is a sub-component of a stacked volume. The hierarchy also includes striping operations that create and maintain storage volume stripes comprising sub-volumes and/or extents. In addition, the hierarchy includes configuration operations that operate directly on a storage volume through a hardware or software volume provider. Together, the hierarchy defined allows a flexible, extensible mechanism to build stacked volumes that provide for increase performance, fault tolerance, and/or aggregate volume size, while elimination volume combinations that can cause performance problems.
摘要翻译：公开了使用一个或多个存储子系统来创建和维护堆叠卷的系统和方法。系统和方法定义了处理操作的操作和组件的层次结构。层次结构包括整个卷的丛操作，连接卷和/或扩展区的映射操作，作为堆叠卷的子组件的卷或扩展的丛操作。层次结构还包括创建和维护包含子卷和/或扩展区的存储卷条带的条带化操作。此外，层次结构包括通过硬件或软件卷提供程序直接在存储卷上操作的配置操作。一起定义的层次结构允许灵活的，可扩展的机制来构建堆叠卷，以提高性能，容错和/或聚合卷大小，同时消除可能导致性能问题的卷组合。

5. 发明授权

US07584224B2 Volume configuration data administration 有权
标题翻译：卷配置数据管理
公开(公告)号：US07584224B2
公开(公告)日：2009-09-01
申请号：US10824068
申请日：2004-04-13
申请人： Luis Felipe Cabrera , Catharine van Ingen , Norbert P. Kusters , Rod N. Gamache
发明人： Luis Felipe Cabrera , Catharine van Ingen , Norbert P. Kusters , Rod N. Gamache
IPC分类号： G06F12/00 , G06F17/30
CPC分类号： G06F17/30371 , Y10S707/99931 , Y10S707/99952 , Y10S707/99953 , Y10S707/99955
摘要： Volume configuration data management systems and methods are described. A logical volume provider maintains an epoch number on each of the extents comprising a volume. Upon each change in the configuration of the volume, the epoch number on each of the currently online extents is updated. When a volume is discovered and a request is made to bring the volume online, the logical volume provider can compare the epoch numbers on the extents to determine if the volume data is consistent across each of the extents, or if an extent contains stale data due to a transitory outage.
摘要翻译：描述卷配置数据管理系统和方法。逻辑卷提供者在包含卷的每个范围上维护一个历元编号。在卷的配置的每次改变之后，更新每个当前在线盘区上的时代号。当发现卷并且请求使卷在线时，逻辑卷提供者可以比较范围上的时代号，以确定卷数据在每个范围内是否一致，或者如果扩展包含过期的数据暂时停电。

6. 发明授权

US6119131A Persistent volume mount points 失效
标题翻译：持久音量安装点
公开(公告)号：US6119131A
公开(公告)日：2000-09-12
申请号：US97061
申请日：1998-06-12
申请人： Luis Felipe Cabrera , Norbert P. Kusters
发明人： Luis Felipe Cabrera , Norbert P. Kusters
IPC分类号： G06F3/06 , C06F12/00
CPC分类号： G06F3/0607 , G06F3/0632 , G06F3/0644 , G06F3/0674 , Y10S707/99952 , Y10S707/99953 , Y10S707/99954
摘要： Information regarding volume mount points hosted by a logical volume are stored on the physical device underlying the logical volume so that the relationships between the host logical volume and target logical volumes mounted on the volume mount points can be reconstituted when the system containing the logical volumes is rebooted, when the underlying physical devices are moved with the system, and when the logical volumes are transported to a different system. A data structure stored on the physical device contains the directory name of the volume mount point and the unique identifier and a globally unique mount name of the target logical volume mounted at the volume mount point. When the target logical volume is present in the system, symbolic links are created to relate the volume mount point name to a device name for the target logical volume so that pathnames containing the directory junction name are resolved correctly. If the target volume is not present in the system, the corresponding symbolic link does not exist, so an incorrect logical volume cannot be mounted onto a volume mount point. Furthermore, because the logical volumes contain the directory junction information, the namespace representing the logical volumes is self-describing so that neither user knowledge nor intervention is required to reconstitute the namespace.
摘要翻译：有关由逻辑卷托管的卷安装点的信息存储在逻辑卷底层的物理设备上，以便在包含逻辑卷的系统为包含逻辑卷的系统时，主机逻辑卷与安装在卷安装点上的目标逻辑卷之间的关系可以重新构建当底层物理设备与系统一起移动时，以及何时将逻辑卷传输到其他系统时重新启动。存储在物理设备上的数据结构包含卷安装点的目录名称和唯一标识符以及安装在卷安装点的目标逻辑卷的全局唯一安装名称。当系统中存在目标逻辑卷时，会创建符号链接，以将卷安装点名称与目标逻辑卷的设备名称相关联，以便正确解析包含目录结名的路径名。如果系统中不存在目标卷，则相应的符号链接不存在，因此不正确的逻辑卷无法挂载到卷安装点上。此外，由于逻辑卷包含目录结点信息，表示逻辑卷的命名空间是自描述的，因此不需要用户知识和干预来重构命名空间。

7. 发明授权

US06684231B1 Migration of friendly volumes 有权
标题翻译：友好卷的迁移
公开(公告)号：US06684231B1
公开(公告)日：2004-01-27
申请号：US09451220
申请日：1999-11-29
申请人： Luis Felipe Cabrera , Catharine van Ingen , Norbert P. Kusters
发明人： Luis Felipe Cabrera , Catharine van Ingen , Norbert P. Kusters
IPC分类号： G06F1730
CPC分类号： G06F17/30067 , Y10S707/99953 , Y10S707/99955 , Y10S707/99956
摘要： Systems and methods for performing an on-demand determination of a correct set of volumes to be exported are described. A disk platter is defined to be the unit of volume migration. Volumes are added to the platter based on whether or not the volume coexists on a disk containing a volume to be exported.
摘要翻译：描述用于执行要输出的正确的一组卷的按需确定的系统和方法。磁盘盘被定义为容量迁移的单位。根据卷是否共存在包含要导出的卷的磁盘上，将卷添加到拼盘中。

8. 发明授权

US06681310B1 Storage management system having common volume manager 有权
标题翻译：具有共同卷管理器的存储管理系统
公开(公告)号：US06681310B1
公开(公告)日：2004-01-20
申请号：US09449577
申请日：1999-11-29
申请人： Norbert P. Kusters , Catharine van Ingen , Luis Felipe Cabrera
发明人： Norbert P. Kusters , Catharine van Ingen , Luis Felipe Cabrera
IPC分类号： G06F1730
CPC分类号： G06F3/0626 , G06F3/0665 , G06F3/0689 , G06F17/30067 , Y10S707/99943 , Y10S707/99953
摘要： A storage management system in which a plurality of volume providers maps logical storage volumes onto one or more storage devices within a stand-alone computer or within a storage network. A common volume manager executing on a computer within the storage network selectively communicates commands to one or more of the volume providers in order to control the storage devices. The inventive storage management system seamlessly integrates management of the vendor-specific volume providers. The common volume manager provides a common application programming interface (API) by which applications are able to control and monitor hardware and software volume providers without requiring detailed knowledge of the volume providers or the underlying storage devices. The common volume manager aggregates response information from the volume providers and communicates the aggregated information to the software application that issued the storage management request. The interface is extensible so as to support provider-specific storage management requests and conforms to a component object-model (COM) interface.
摘要翻译：一种存储管理系统，其中多个卷提供者将逻辑存储卷映射到独立计算机内或存储网络内的一个或多个存储设备上。在存储网络内的计算机上执行的常见卷管理器选择性地向一个或多个卷提供者传送命令以便控制存储设备。本发明的存储管理系统无缝地集成了供应商特定卷供应商的管理。公共卷管理器提供了一个通用的应用程序编程接口（API），通过该应用程序编程接口（API），应用程序可以通过该应用程序编程接口（API）来控制和监视硬件和软件卷提供程序，而无需详细了解卷提供程序或底层存储设备。公共卷管理器汇集来自卷提供者的响应信息，并将汇总的信息传送到发布存储管理请求的软件应用程序。该接口是可扩展的，以便支持特定于提供商的存储管理请求并符合组件对象模型（COM）接口。

9. 发明授权

US06553387B1 LOGICAL VOLUME CONFIGURATION DATA MANAGEMENT DETERMINES WHETHER TO EXPOSE THE LOGICAL VOLUME ON-LINE, OFF-LINE REQUEST BASED ON COMPARISON OF VOLUME EPOCH NUMBERS ON EACH EXTENTS OF THE VOLUME IDENTIFIERS 有权
标题翻译：逻辑卷配置数据管理确定无论是根据大容量标识符的每一个列表中的体积数字编号的对比来显示逻辑卷在线，离线请求
公开(公告)号：US06553387B1
公开(公告)日：2003-04-22
申请号：US09450300
申请日：1999-11-29
申请人： Luis Felipe Cabrera , Catharine van Ingen , Norbert P. Kusters , Rod N. Gamache
发明人： Luis Felipe Cabrera , Catharine van Ingen , Norbert P. Kusters , Rod N. Gamache
IPC分类号： G06F1200
CPC分类号： G06F17/30371 , Y10S707/99931 , Y10S707/99952 , Y10S707/99953 , Y10S707/99955
摘要： Volume configuration data management systems and methods are described. A logical volume provider maintains an epoch number on each of the extents comprising a volume. Upon each change in the configuration of the volume, the epoch number on each of the currently online extents is updated. When a volume is discovered and a request is made to bring the volume online, the logical volume provider can compare the epoch numbers on the extents to determine if the volume data is consistent across each of the extents, or if an extent contains stale data due to a transitory outage.
摘要翻译：描述卷配置数据管理系统和方法。逻辑卷提供者在包含卷的每个范围上维护一个历元编号。在卷的配置的每次改变之后，更新每个当前在线盘区上的时代号。当发现卷并且请求使卷在线时，逻辑卷提供者可以比较范围上的时代号，以确定卷数据在每个范围内是否一致，或者如果扩展包含过期的数据暂时停电。

10. 发明授权

US06496839B2 Persistent names for logical volumes 失效
标题翻译：逻辑卷的持久名称
公开(公告)号：US06496839B2
公开(公告)日：2002-12-17
申请号：US09096540
申请日：1998-06-12
申请人： Luis Felipe Cabrera , Norbert P. Kusters
发明人： Luis Felipe Cabrera , Norbert P. Kusters
IPC分类号： C06F1200
CPC分类号： G06F3/0607 , G06F3/0632 , G06F3/0683 , Y10S707/99954
摘要： Persistent names for logical volumes in a computer system are used to enable symbolic links between the persistent names and non-persistent device names that identify the logical volumes to the lower layers of the operating system during a single boot session. A persistent unique mount name for each logical volume is associated with a unique volume identifier for the logical volume in a persistent mount manager data structure. Optionally a persistent drive letter can be assigned to the volume. Higher layers of the operating system and user applications address a volume through the persistent mount name as well as any assigned drive letter. When the system is rebooted, the data structure entries identified by the unique volume identifiers of the arriving logical volumes are used to reconstruct the symbolic links so that references to the persistent mount name, and optional drive letter, will resolve to the correct non-persistent device name, thus guaranteeing consistency in addressing the logical volumes across boot sessions. When the system undergoes physical reconfiguration, an existing persistent mount name is associated with a different non-persistent device name if the unique volume identifier is present in the data structure. In this fashion, logical volumes can be removed and restored in the computer without the knowledge of higher layers of the operating system and user applications. Optionally, an in-memory data structure is created from the persistent data structure to increase the speed of the identification process.
摘要翻译：计算机系统中的逻辑卷的持久名称用于启用永久名称和非持久性设备名称之间的符号链接，以便在单个引导会话期间识别操作系统的较低层的逻辑卷。每个逻辑卷的持久唯一安装名称与持久性安装管理器数据结构中的逻辑卷的唯一卷标识符相关联。可选地，可以为卷分配持久性驱动器号。操作系统和用户应用程序的较高层通过持久安装名称以及任何分配的驱动器号来寻址卷。当系统重新启动时，由到达的逻辑卷的唯一卷标识符标识的数据结构条目用于重构符号链接，以便引用持久挂载名称和可选驱动器号可以解析为正确的非持久性设备名称，从而保证在引导会话中解决逻辑卷的一致性。当系统进行物理重新配置时，如果唯一卷标识符存在于数据结构中，则现有的持久性挂载名称与不同的非持久性设备名称相关联。以这种方式，可以在计算机中删除和恢复逻辑卷，而不需要知道较高层的操作系统和用户应用程序。可选地，从永久数据结构创建存储器内数据结构以增加识别过程的速度。

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