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1. 发明申请

US20080071999A1 REDIRECTION OF STORAGE ACCESS REQUESTS 失效
标题翻译：存储访问请求的重定向
公开(公告)号：US20080071999A1
公开(公告)日：2008-03-20
申请号：US11945098
申请日：2007-11-26
申请人： Kenneth Boyd , Kenneth Day , Charles Lickel , John Wolfgang
发明人： Kenneth Boyd , Kenneth Day , Charles Lickel , John Wolfgang
IPC分类号： G06F12/00
CPC分类号： G06F11/2069 , G06F11/2076
摘要： Provided are a method, system, and article of manufacture, wherein a controller receives a request from one of a plurality of hosts. The controller determines whether a primary storage control unit coupled to the controller is operational. A response is generated by accessing the primary storage control unit, in response to determining that the primary storage control unit is operational. The response is generated by accessing a secondary storage control unit, in response to determining that the primary storage control unit is not operational, wherein data is replicated synchronously from the primary storage control unit to the secondary storage control unit.
摘要翻译：提供了一种方法，系统和制品，其中控制器从多个主机之一接收请求。控制器确定耦合到控制器的主存储控制单元是否可操作。响应于确定主存储控制单元是可操作的，通过访问主存储控制单元来产生响应。响应于响应于确定主存储控制单元不可操作而访问辅助存储控制单元而产生响应，其中数据从主存储控制单元同步地复制到辅助存储控制单元。

2. 发明申请

US20050193247A1 Predictive algorithm for load balancing data transfers across components 失效
标题翻译：跨组件负载平衡数据传输的预测算法
公开(公告)号：US20050193247A1
公开(公告)日：2005-09-01
申请号：US10788174
申请日：2004-02-25
申请人： Philip Doatmas , Kenneth Day , Kenneth Boyd , John Wolfgang
发明人： Philip Doatmas , Kenneth Day , Kenneth Boyd , John Wolfgang
IPC分类号： G06F11/00
CPC分类号： G06F11/2064 , G06F11/1458 , G06F11/2071 , G06F2201/82 , Y10S707/99942 , Y10S707/99943 , Y10S707/99953 , Y10S707/99955
摘要： A system, method and computer program product are provided to improve the efficiency of the transmission of consistency groups across multiple storage components by ensuring that volume transactions are evenly allocated among backup components. Each volume is initially assigned to a specified backup component. Once a color period begins, volume transactions are transmitted to the assigned backup component. Each backup component accumulates data transfer information for its assigned volumes throughout at least a portion of the color period and calculates a new volume assignment for the next color period. Before the start of the next color period, a captain storage controller transmits any new assignments to the backup components. During a next color period, the process is repeated using the new assignments.
摘要翻译：提供了一种系统，方法和计算机程序产品，通过确保在备份组件之间均匀分配卷事务来提高跨多个存储组件的一致性组传输的效率。每个卷最初分配给指定的备份组件。一旦颜色周期开始，卷事务将被传输到分配的备份组件。每个备份组件在颜色周期的至少一部分中累积其分配的卷的数据传输信息，并计算下一个颜色周期的新的卷分配。在下一个色彩周期开始之前，船长存储控制器将任何新的作业传送到备份组件。在下一个颜色期间，使用新的作业重复该过程。

3. 发明申请

US20050228955A1 Method, system, and program for prefetching data into cache 失效
标题翻译：用于将数据预取到高速缓存中的方法，系统和程序
公开(公告)号：US20050228955A1
公开(公告)日：2005-10-13
申请号：US10822410
申请日：2004-04-12
申请人： Kenneth Day , John Wolfgang , Kenneth Boyd , Philip Doatmas
发明人： Kenneth Day , John Wolfgang , Kenneth Boyd , Philip Doatmas
IPC分类号： G06F12/00 , G06F12/08
CPC分类号： G06F12/0862 , G06F12/0866 , G06F2212/6028
摘要： Provided are a method, system and program for prefetching data into cache. A prefetch command is processed that indicates at least one conditional statement and at least one block to prefetch from storage to cache in response to determining that the conditional statement is satisfied.
摘要翻译：提供了一种用于将数据预取到高速缓存中的方法，系统和程序。处理预取命令，其响应于确定满足条件语句，指示至少一个条件语句和至少一个块来从存储器预缓存。

4. 发明申请

US20050177692A1 Shared data mirroring apparatus, method, and system 失效
标题翻译：共享数据镜像设备，方法和系统
公开(公告)号：US20050177692A1
公开(公告)日：2005-08-11
申请号：US10772875
申请日：2004-02-05
申请人： Kenneth Boyd , Kenneth Day , Philip Doatmas , John Wolfgang
发明人： Kenneth Boyd , Kenneth Day , Philip Doatmas , John Wolfgang
IPC分类号： G06F12/16
CPC分类号： G06F11/2064 , G06F11/2071 , G06F11/2082 , G06F2201/855
摘要： A network component useful in tracking write activity by writing logs containing write address information is described. The tracking component may be used in networked systems employing data mirrors to record data block addresses written to a primary storage volume during the time a data mirror is unavailable. The tracking component can be available to any network originating node, and may therefore track write activity on multiple volumes. At the time a data mirror is reconstructed, the log written may be used to construct a list of block addresses pointing to locations on a primary storage volume wherein data differs from a secondary storage volume member of the mirror. The locations maybe copied from the primary to secondary storage volume to reconstruct the data mirror. The performance impact of the tracking component is minimal and a shared network resource is offered that increases fault tolerance in the event of backup device failures.
摘要翻译：描述了通过写入包含写入地址信息的日志来跟踪写入活动的网络组件。跟踪组件可以用于使用数据镜来记录数据镜不可用时写入主存储卷的数据块地址的网络系统。跟踪组件可用于任何网络始发节点，并且因此可以跟踪多个卷上的写入活动。在重建数据镜像时，所写入的日志可以用于构造指向主存储卷上的位置的块地址的列表，其中数据与镜像的辅助存储卷成员不同。这些位置可能从主存储卷复制到副存储卷，以重构数据镜像。跟踪组件的性能影响最小，并提供共享网络资源，从而在备份设备故障的情况下增加容错能力。

5. 发明申请

US20050050197A1 Apparatus and method to select a captain from a plurality of control nodes 失效
标题翻译：从多个控制节点选择船长的装置和方法
公开(公告)号：US20050050197A1
公开(公告)日：2005-03-03
申请号：US10652144
申请日：2003-08-29
申请人： Kenneth Boyd , Kenneth Day , Philip Doatmas , John Wolfgang
发明人： Kenneth Boyd , Kenneth Day , Philip Doatmas , John Wolfgang
IPC分类号： G06F12/00 , G06F13/00 , G06F15/163 , G06F15/173
CPC分类号： G06F11/1456
摘要： A method to select a captain control node from a plurality of interconnected control nodes is disclosed. The method provides by each of the plurality of control nodes a first signal to each of the other control nodes, and then receives by each of the plurality of control nodes, a response signal from each of the other control nodes. The method then calculates by each of the plurality of control nodes individual response times for each of the other control nodes, and determines by each control node its aggregate response time. The method then determines whether to select a captain control node using the aggregate response times. If the captain control node is selected using the aggregate response times, then the method then determines the minimum aggregate response time, and designates the control node having that minimum aggregate response time the captain control node.
摘要翻译：公开了一种从多个互连的控制节点中选择船长控制节点的方法。该方法由多个控制节点中的每一个向每个其他控制节点提供第一信号，然后由多个控制节点中的每一个接收来自每个其他控制节点的响应信号。该方法然后由多个控制节点中的每一个由每个其他控制节点的各个响应时间计算，并由每个控制节点确定其聚合响应时间。该方法然后确定是否使用聚合响应时间来选择船长控制节点。如果使用聚合响应时间选择队长控制节点，则该方法然后确定最小聚合响应时间，并且指定具有该队列控制节点具有该最小聚合响应时间的控制节点。

6. 发明申请

US20070220312A1 Apparatus, system, and method for switching a volume address association in a point-in-time copy relationship 失效
标题翻译：用于在时间点复制关系中切换卷地址关联的装置，系统和方法
公开(公告)号：US20070220312A1
公开(公告)日：2007-09-20
申请号：US11357375
申请日：2006-02-17
申请人： Kenneth Boyd , Kenneth Day , Stephen Edel , John Wolfgang , Harry Yudenfriend
发明人： Kenneth Boyd , Kenneth Day , Stephen Edel , John Wolfgang , Harry Yudenfriend
IPC分类号： G06F11/00
CPC分类号： G06F11/2094 , G06F11/2097
摘要： An apparatus, system, and method are disclosed for switching a volume address association in a point-in-time copy relationship. A copy module creates a point-in-time copy structure of a source volume at a target volume. A migration module copies data from the source volume to the target volume. A detection module detects data corruption in the source volume. A switch module switches a logical volume address from a source volume address of the source volume to a target volume address of the target volume in response to detecting the data corruption, redirecting data reads and writes to the target volume. In one embodiment, a tracking module tracks a current target volume copy of source volume data and redirects an access for source volume data without the current target volume copy to the source volume.
摘要翻译：公开了一种用于在时间点复制关系中切换卷地址关联的装置，系统和方法。复制模块在目标卷创建源卷的时间点复制结构。迁移模块将数据从源卷复制到目标卷。检测模块检测源卷中的数据损坏。响应于检测到数据损坏，将数据读取和写入重定向到目标卷，交换机模块将逻辑卷地址从源卷的源卷地址切换到目标卷的目标卷地址。在一个实施例中，跟踪模块跟踪源卷数据的当前目标卷副本，并将源卷数据的访问重定向，而不将当前目标卷拷贝重定向到源卷。

7. 发明申请

US20070130222A1 Establishing copy relationships to copy source data to target data 失效
标题翻译：建立复制关系，将源数据复制到目标数据
公开(公告)号：US20070130222A1
公开(公告)日：2007-06-07
申请号：US11293608
申请日：2005-12-01
申请人： John Wolfgang , Kenneth Boyd , Kenneth Day
发明人： John Wolfgang , Kenneth Boyd , Kenneth Day
IPC分类号： G06F17/30
CPC分类号： G06F3/065 , G06F3/0617 , G06F3/0689 , G06F11/2069
摘要： Provided are a method, system, and program for establishing copy relationships to copy source data to target data. A request is received to establish a copy relationship indicating to copy source data to target data. A determination is made as to whether the source data defined in the request comprises target data defined in a preexisting copy relationship. A determination is made as to whether base source data copied to the target data in the preexisting copy relationship also comprises the source data indicated in the request in response to determining that the source data defined in the request comprises target data in the preexisting copy relationship. A new copy relationship is defined to copy the determined base source data to the target data indicated in the request.
摘要翻译：提供了一种用于建立复制关系以将源数据复制到目标数据的方法，系统和程序。接收请求以建立指示将源数据复制到目标数据的复制关系。确定在请求中定义的源数据是否包含以预先存在的复制关系定义的目标数据。确定复制到预先存在的复制关系中的目标数据的基本源数据是否还包括在请求中指示的源数据，以响应于确定在请求中定义的源数据包括预先存在的复制关系中的目标数据。定义了新的复制关系，将确定的基本源数据复制到请求中指示的目标数据。

8. 发明申请

US20070130216A1 METHOD, SYSTEM, AND PROGRAM FOR DATA SYNCHRONIZATION 失效
标题翻译：用于数据同步的方法，系统和程序
公开(公告)号：US20070130216A1
公开(公告)日：2007-06-07
申请号：US11548220
申请日：2006-10-10
申请人： John Wolfgang , Kenneth Boyd , Kenneth Day , Philip Doatmas , Kirby Dahman
发明人： John Wolfgang , Kenneth Boyd , Kenneth Day , Philip Doatmas , Kirby Dahman
IPC分类号： G06F17/30
CPC分类号： G06F11/1451 , G06F11/2082 , Y10S707/99936
摘要： Disclosed is a technique for data synchronization. A first identifier for a portion of data on a primary volume is determined, wherein a unique identifier is associated with each portion of data at the primary volume. A second identifier for a portion of corresponding data at a secondary volume is determined, wherein a unique identifier is associated with each portion of data at the secondary volume. The first and second identifiers are compared. When the first and second identifiers do not match, the portion of corresponding data at the secondary volume in a storage device is replaced with the portion of data at the primary volume.
摘要翻译：公开了一种用于数据同步的技术。确定主卷上的数据的一部分的第一标识符，其中唯一标识符与主卷上的数据的每个部分相关联。确定次级卷的对应数据的一部分的第二标识符，其中唯一标识符与辅助卷的每个数据部分相关联。比较第一和第二标识符。当第一和第二标识符不匹配时，存储设备中次级卷上的相应数据的部分被主卷上的数据部分所替换。

9. 发明申请

US20070006024A1 Apparatus and Method to Adjust Data Transfer Rate 失效
标题翻译：调整数据传输速率的装置和方法
公开(公告)号：US20070006024A1
公开(公告)日：2007-01-04
申请号：US11531249
申请日：2006-09-12
申请人： Kenneth Boyd , Kirby Dahman , Kenneth Day , Philip Doatmas , John Wolfgang
发明人： Kenneth Boyd , Kirby Dahman , Kenneth Day , Philip Doatmas , John Wolfgang
IPC分类号： G06F11/00
CPC分类号： H04L67/1095 , G06F11/1464 , G06F11/2056 , G06F11/2064
摘要： A method to adjust the data transfer rate for one of (N) primary backup appliances. The method forms by a first primary backup appliance at least one consistent transactions set. The first primary backup appliance receives the (n)th status signal, and the (n+1)th status signal from each of the other (N-1) primary backup appliances. The method calculates the (n)th effective bandwidth for each of the (N) primary backup appliances, the (n)th time to complete for each of the (N) primary backup appliances, and the (n)th effective aggregate bandwidth for all (N) primary appliances. If the (n)th time to complete for the first primary backup appliance is greater than the (n)th time to complete for each of the other (N-1) primary backup appliances, then the method provides at least one consistent transactions set from the first primary backup appliance to a first secondary backup appliance with no delay.
摘要翻译：一种用于调整（N）个主备份设备之一的数据传输速率的方法。该方法由第一个主备份设备形成至少一个一致的事务集。第一个主要备份设备从其他（N-1）个主备份设备接收第（n）个状态信号和第（n + 1）个状态信号。该方法计算（N）个主备份设备中的每个（N）个主备份设备的第（n）个有效带宽，（N）个主备份设备中的每一个完成的第（n）个时间，以及（N）所有（N）主要电器。如果第一个主备份设备完成的第（n）个时间大于其他（N-1）个主备份设备的第（n）个时间完成，则该方法提供至少一个一致的事务集从第一个主备份设备到第一个辅助备份设备，不会延迟。

10. 发明申请

US20060041823A1 Method and apparatus for storing and retrieving multiple point-in-time consistent data sets 失效
标题翻译：用于存储和检索多个时间一致数据集的方法和装置
公开(公告)号：US20060041823A1
公开(公告)日：2006-02-23
申请号：US10910714
申请日：2004-08-03
申请人： John Wolfgang , Kenneth Day , Philip Doatmas , Kenneth Boyd
发明人： John Wolfgang , Kenneth Day , Philip Doatmas , Kenneth Boyd
IPC分类号： G11C29/00
CPC分类号： G06F11/2064 , G06F11/2071
摘要： A method, apparatus, and article of manufacture containing instructions for processing multiple point-in-time consistent data sets. The method consists of creating multiple point-in-time data sets associated with a backup appliance which is associated with backup storage. Upon the transfer of a first update from a primary storage controller to the backup appliance, a determination is made whether the update affects data stored in the backup storage has been unchanged following the creation of the respective data sets. If the update does affect data which is unchanged following the creation of a data set, the current, non-updated data is read from the backup storage. A copy of the current, non-updated data thus read from the backup storage is stored in a storage location which can be one of the data sets or an independent memory location. In addition, pointers are associated with the remaining applicable data sets and directed to the copy at its storage location. Subsequently, the update is applied to the data on the backup storage device. In the event an update is subsequently transferred from the primary storage controller to the backup appliance which affects data stored in backup storage which has already been changed since the creation of an applicable data set, no further data is written to the applicable data set and the update is applied to the backup storage.
摘要翻译：一种包含用于处理多个时间一致数据集的指令的方法，装置和制品。该方法包括创建与备份存储相关联的备份设备相关联的多个时间点数据集。在将第一更新从主存储控制器传送到备份设备时，确定在创建相应数据集之后，存储在备份存储器中的更新影响是否保持不变。如果更新确实影响创建数据集后不变的数据，则从备份存储器读取当前未更新的数据。从备份存储器读取的当前未更新数据的副本被存储在可以是数据集之一或独立存储器位置的存储位置中。此外，指针与剩余的适用数据集相关联，并指向其存储位置处的副本。随后，更新应用于备份存储设备上的数据。如果随后将更新从主存储控制器传送到备份设备，影响存储在备份存储器中的数据，这些数据自创建适用的数据集以来已经被更改，则不再向适用的数据集写入进一步的数据，更新应用于备份存储。

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