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1. 发明授权

US06173377B2 Remote data mirroring 失效
标题翻译：远程数据镜像
公开(公告)号：US06173377B2
公开(公告)日：2001-01-09
申请号：US09061708
申请日：1998-04-17
申请人： Moshe Yanai , Natan Vishlitzky , Bruno Alterescu , Daniel D. C Castel , Gadi G Shklarsky , Yuval Ofek
发明人： Moshe Yanai , Natan Vishlitzky , Bruno Alterescu , Daniel D. C Castel , Gadi G Shklarsky , Yuval Ofek
IPC分类号： G06F1216
CPC分类号： G06F11/2071 , G06F3/0601 , G06F3/0608 , G06F3/061 , G06F3/0619 , G06F3/064 , G06F3/065 , G06F3/0661 , G06F3/0689 , G06F11/2066 , G06F11/2074 , G06F11/2079 , G06F11/2082 , G06F2003/0697 , G11B20/1217 , H04L29/06 , H04L67/1095 , H04L69/26 , H04L69/40 , Y10S707/99942
摘要： Two data storage systems are interconnected by a data link for remote mirroring of data. Each volume of data is configured as local, primary in a remotely mirrored volume pair, or secondary in a remotely mirrored volume pair. Normally, a host computer directly accesses either a local or a primary volume, and data written to a primary volume is automatically sent over the link to a corresponding secondary volume. Each remotely mirrored volume pair can operate in a selected synchronization mode including synchronous, semi-synchronous, adaptive copy-remote write pending, and adaptive copy-disk. Direct write access to a secondary volume is denied if a “sync required” attribute is set for the volume and the volume is not synchronized. If a “volume domino” mode is enabled for a remotely mirrored volume pair, access to a volume of the pair is denied when the other volume is inaccessible. In a “links domino” mode, access to all remotely mirrored volumes is denied when remote mirroring is disrupted by an all-links failure. The domino modes can be used to initiate application-based recovery, for example, recovering a secondary data file using a secondary log file. In an active migration mode, host processing of a primary volume is concurrent with migration to a secondary volume. In an overwrite cache mode, remote write-pending data in cache can be overwritten. Write data for an entire host channel command word chain is bundled in one link transmission.
摘要翻译：两个数据存储系统通过用于数据远程镜像的数据链路相互连接。每卷数据被配置为本地，主要在远程镜像卷对中，或辅助在远程镜像卷对中。通常，主机直接访问本地或主卷，并且写入主卷的数据将通过链接自动发送到相应的辅助卷。每个远程镜像卷对可以在所选择的同步模式中操作，包括同步，半同步，自适应复制远程写入挂起和自适应复制盘。如果为卷设置了“需要同步”属性，并且卷未同步，则对副卷的直接写入访问被拒绝。如果对远程镜像卷对启用“体积多米诺骨牌”模式，则在其他卷无法访问时，对该卷的访问将被拒绝。在“连接多米诺骨牌”模式下，当远程镜像被全连接故障中断时，对所有远程镜像卷的访问被拒绝。多米诺骨牌模式可用于启动基于应用程序的恢复，例如，使用辅助日志文件恢复辅助数据文件。在主动迁移模式下，主卷的主机处理与迁移到辅助卷并发。在覆盖缓存模式下，高速缓存中的远程写挂起数据可以被覆盖。整个主机通道命令字链的写入数据捆绑在一个链路传输中。

2. 发明授权

US5819310A Method and apparatus for reading data from mirrored logical volumes on physical disk drives 失效
标题翻译：用于从物理磁盘驱动器上的镜像逻辑卷读取数据的方法和设备
公开(公告)号：US5819310A
公开(公告)日：1998-10-06
申请号：US653154
申请日：1996-05-24
申请人： Natan Vishlitzky , Yuval Ofek , Eitan Bachmat
发明人： Natan Vishlitzky , Yuval Ofek , Eitan Bachmat
IPC分类号： G06F11/20 , G06F12/08 , G06F12/02 , G06F12/16
CPC分类号： G06F11/2061 , G06F11/2071 , G06F12/0866 , G06F2212/312
摘要： A mirrored memory for a data processing system. The memory system includes two device controllers and related disk drives for storing the mirrored data. Each of the disk drives is divided into logical volumes. Each device controller contains a plurality of reading processes and a correspondence table that establishes the reading process to be used in retrieving data from the corresponding disk drive. Each disk controller responds to a read command that identifies the logical volume by using the correspondence table to select the appropriate reading process and by transferring data from appropriate physical storage device containing the designated logical volume.
摘要翻译：用于数据处理系统的镜像存储器。存储器系统包括用于存储镜像数据的两个设备控制器和相关磁盘驱动器。每个磁盘驱动器分为逻辑卷。每个设备控制器包含多个读取过程和对应表，其建立用于从相应的磁盘驱动器检索数据的读取过程。每个磁盘控制器通过使用对应表来响应识别逻辑卷的读取命令，以选择适当的读取过程，并通过从包含指定的逻辑卷的适当物理存储设备传送数据。

3. 发明授权

US5802557A System and method for caching information in a digital data storage subsystem 失效
标题翻译：用于在数字数据存储子系统中缓存信息的系统和方法
公开(公告)号：US5802557A
公开(公告)日：1998-09-01
申请号：US619931
申请日：1996-03-18
申请人： Natan Vishlitzky , Yuval Ofek , Haim Kopylovitz
发明人： Natan Vishlitzky , Yuval Ofek , Haim Kopylovitz
IPC分类号： G06F12/08 , G06F13/00
CPC分类号： G06F12/0866
摘要： A digital data storage subsystem stores data for use by digital data utilization device. The data as used by the digital data utilization device being organized in the form of variable-length records. The digital data storage subsystem includes a digital data storage device, a cache and a cache control. The digital data storage device has at least one fixed block storage unit for storing a predetermined amount of data, the storage unit storing at least one record and additional padding if the record does not comprise at least said predetermined amount of data. The cache including at least one cache slot which can accommodate the storage of the predetermined amount of data, that is, the amount which can be stored on the block storage unit of the digital data storage device. The cache control controls the transfer of data from the fixed block storage unit to the cache slot for use by the digital data utilization device, and in addition controls the transfer of data from the cache slot to the fixed block storage unit if the digital data utilization device modifies the data in the cache slot. The cache control controls the transfer so that the format of the data in the fixed block storage unit conforms to the format of the data in the cache slot, so that no changes are required to the formatting of the data during such a transfer.
摘要翻译：数字数据存储子系统存储供数字数据利用装置使用的数据。由数字数据利用装置使用的数据以可变长度记录的形式组织。数字数据存储子系统包括数字数据存储设备，高速缓存和高速缓存控制。数字数据存储装置具有用于存储预定数量的数据的至少一个固定块存储单元，如果记录不包括至少所述预定量的数据，则存储单元存储至少一个记录和附加填充。高速缓存包括至少一个缓存时隙，其可容纳预定数量的数据的存储，即可以存储在数字数据存储装置的块存储单元上的量。高速缓存控制控制数据从固定块存储单元向数据数据利用装置使用的高速缓存槽的传输，另外控制数据从高速缓存槽到固定块存储单元的传输，如果数字数据利用设备修改高速缓存槽中的数据。高速缓存控制控制传输，使得固定块存储单元中的数据的格式符合高速缓存槽中的数据的格式，使得在这种传输期间对数据的格式化不需要改变。

4. 发明申请

US20060005074A1 Remote data mirroring 有权
公开(公告)号：US20060005074A1
公开(公告)日：2006-01-05
申请号：US11213497
申请日：2005-08-26
申请人： Moshe Yanai , Natan Vishlitzky , Bruno Alterescu , Daniel Castel , Gadi Shklarsky , Yuval Ofek
发明人： Moshe Yanai , Natan Vishlitzky , Bruno Alterescu , Daniel Castel , Gadi Shklarsky , Yuval Ofek
IPC分类号： G06F11/00
CPC分类号： G06F11/2071 , G06F3/0601 , G06F3/0608 , G06F3/061 , G06F3/0619 , G06F3/064 , G06F3/065 , G06F3/0661 , G06F3/0689 , G06F11/2066 , G06F11/2074 , G06F11/2079 , G06F11/2082 , G06F2003/0697 , G11B20/1217 , H04L29/06 , H04L67/1095 , H04L69/26 , H04L69/40 , Y10S707/99942
摘要： Two data storage systems are interconnected by a data link for remote mirroring of data. Each volume of data is configured as local, primary in a remotely mirrored volume pair, or secondary in a remotely mirrored volume pair. Normally, a host computer directly accesses either a local or a primary volume, and data written to a primary volume is automatically sent over the link to a corresponding secondary volume. Each remotely mirrored volume pair can operate in a selected synchronization mode including synchronous, semi-synchronous, adaptive copy-remote write pending, and adaptive copy-disk. Direct write access to a secondary volume is denied if a “sync required” attribute is set for the volume and the volume is not synchronized.

5. 发明授权

US06370626B1 Method and apparatus for independent and simultaneous access to a common data set 有权
公开(公告)号：US06370626B1
公开(公告)日：2002-04-09
申请号：US09303242
申请日：1999-04-30
申请人： Mathieu Gagne , Haim Kopylovitz , Yuval Ofek , Natan Vishlitzky
发明人： Mathieu Gagne , Haim Kopylovitz , Yuval Ofek , Natan Vishlitzky
IPC分类号： G06F1200
CPC分类号： G06F3/0613 , G06F3/065 , G06F3/067 , G06F11/1451 , G06F11/2069 , G06F11/2082
摘要： A method and apparatus for enabling a common data set to be utilized by multiple data processes. During a first operating mode, first and second data stores in a data storage facility with a common buffer attach to a first data process and act as mirrors. Data to be written transfers to the common buffer and then to the data stores. A second command produces a split whereby the first data store remains attached to the first data process and the second data store is available to the second data process. After the second command is executed, any data in the common buffer is transferred to the corresponding data stores in parallel with and transparently to the actions between the first and second data processes and the first and second data stores, respectively.

6. 发明授权

US07240238B2 Remote data mirroring 有权
标题翻译：远程数据镜像
公开(公告)号：US07240238B2
公开(公告)日：2007-07-03
申请号：US11213497
申请日：2005-08-26
申请人： Moshe Yanai , Natan Vishlitzky , Bruno Alterescu , Daniel Castel , Gadi G Shklarsky , Yuval Ofek
发明人： Moshe Yanai , Natan Vishlitzky , Bruno Alterescu , Daniel Castel , Gadi G Shklarsky , Yuval Ofek
IPC分类号： G06F11/00
CPC分类号： G06F11/2071 , G06F3/0601 , G06F3/0608 , G06F3/061 , G06F3/0619 , G06F3/064 , G06F3/065 , G06F3/0661 , G06F3/0689 , G06F11/2066 , G06F11/2074 , G06F11/2079 , G06F11/2082 , G06F2003/0697 , G11B20/1217 , H04L29/06 , H04L67/1095 , H04L69/26 , H04L69/40 , Y10S707/99942
摘要： Two data storage systems are interconnected by a data link for remote mirroring of data. Each volume of data is configured as local, primary in a remotely mirrored volume pair, or secondary in a remotely mirrored volume pair. Normally, a host computer directly accesses either a local or a primary volume, and data written to a primary volume is automatically sent over the link to a corresponding secondary volume. Each remotely mirrored volume pair can operate in a selected synchronization mode including synchronous, semi-synchronous, adaptive copy-remote write pending, and adaptive copy-disk. Direct write access to a secondary volume is denied if a “sync required” attribute is set for the volume and the volume is not synchronized.
摘要翻译：两个数据存储系统通过用于数据远程镜像的数据链路相互连接。每卷数据被配置为本地，主要在远程镜像卷对中，或辅助在远程镜像卷对中。通常，主机直接访问本地或主卷，并且写入主卷的数据将通过链接自动发送到相应的辅助卷。每个远程镜像卷对可以在所选择的同步模式中操作，包括同步，半同步，自适应复制远程写入挂起和自适应复制盘。如果为卷设置了“需要同步”属性，并且卷未同步，则对副卷的直接写入访问被拒绝。

7. 发明授权

US06728836B1 Segmenting cache to provide varying service levels 有权
标题翻译：分段缓存以提供不同的服务级别
公开(公告)号：US06728836B1
公开(公告)日：2004-04-27
申请号：US09535134
申请日：2000-03-24
申请人： Daniel Lambright , Adi Ofer , Natan Vishlitzky , Yuval Ofek
发明人： Daniel Lambright , Adi Ofer , Natan Vishlitzky , Yuval Ofek
IPC分类号： G06F1208
CPC分类号： G06F12/0866 , G06F12/123
摘要： Storing data in a cache memory of a storage device includes providing access to a first segment of the cache memory on behalf of a first group of external host systems coupled to the storage device and providing access to a second segment of the cache memory on behalf of a second group of external host systems coupled to the storage device, where at least a portion of the second segment of the cache memory is not part of the first segment of the cache memory. In some embodiments, no portion of the second segment of the cache memory is part of the first segment. Storing data in a cache memory of a storage device may also include providing a first data structure in the first segment of the cache memory and providing a second data structure in the second segment of the cache memory, where accessing the first segment includes accessing the first data structure and accessing the second segment includes accessing the second data structure. The data structures may be doubly linked ring lists of blocks of data. Each block of data may correspond to a track on a disk drive. Different groups of external host systems may be provided with different access, priority, and level of service with respect to the different segments of the cache.
摘要翻译：将数据存储在存储设备的高速缓冲存储器中包括代表耦合到存储设备的第一组外部主机系统提供对高速缓存存储器的第一段的访问，并且代表提供对高速缓冲存储器的第二段的访问耦合到存储设备的第二组外部主机系统，其中高速缓冲存储器的第二段的至少一部分不是高速缓冲存储器的第一段的一部分。在一些实施例中，高速缓冲存储器的第二段的任何部分都不是第一段的一部分。将数据存储在存储设备的高速缓冲存储器中还可以包括在高速缓冲存储器的第一段中提供第一数据结构，并在高速缓冲存储器的第二段中提供第二数据结构，其中访问第一段包括访问第一段数据结构和访问第二段包括访问第二数据结构。数据结构可以是双重链接的数据块的环列表。每个数据块可以对应于磁盘驱动器上的轨道。可以向不同的外部主机系统组提供相对于高速缓存的不同段的不同访问，优先级和服务级别。

8. 发明授权

US06502205B1 Asynchronous remote data mirroring system 失效
标题翻译：异步远程数据镜像系统
公开(公告)号：US06502205B1
公开(公告)日：2002-12-31
申请号：US09709814
申请日：2000-11-10
申请人： Moshe Yanai , Natan Vishlitzky , Bruno Alterescu , Daniel Castel , Gadi Shklarsky , Yuval Ofek
发明人： Moshe Yanai , Natan Vishlitzky , Bruno Alterescu , Daniel Castel , Gadi Shklarsky , Yuval Ofek
IPC分类号： H02H305
CPC分类号： G06F11/2071 , G06F3/0601 , G06F3/0608 , G06F3/061 , G06F3/0619 , G06F3/064 , G06F3/065 , G06F3/0661 , G06F3/0689 , G06F11/2066 , G06F11/2074 , G06F11/2079 , G06F11/2082 , G06F2003/0697 , G11B20/1217 , H04L29/06 , H04L67/1095 , H04L69/26 , H04L69/40 , Y10S707/99942
摘要： Two data storage systems are interconnected by a data link for remote mirroring of data. Each volume of data is configured as local, primary in a remotely mirrored volume pair, or secondary in a remotely mirrored volume pair. Normally, a host computer directly accesses either a local or a primary volume, and data written to a primary volume is automatically sent over the link to a corresponding secondary volume. Each remotely mirrored volume pair can operate in a selected synchronization mode including synchronous, semi-synchronous, adaptive copy-remote write pending, and adaptive copy-disk. Direct write access to a secondary volume is denied if a “sync required” attribute is set for the volume and the volume is not synchronized. If a “volume domino” mode is enabled for a remotely mirrored volume pair, access to a volume of the pair is denied when the other volume is inaccessible. In a “links domino” mode, access to all remotely mirrored volumes is denied when remote mirroring-is disrupted by an all-links failure. The domino modes can be used to initiate application-based recovery, for example, recovering a secondary data file using a secondary log file. In an active migration mode, host processing of a primary volume is concurrent with migration to a secondary volume. In an overwrite cache mode, remote write-pending data in cache can be overwritten. Write data for an entire host channel command word chain is bundled in one link transmission.
摘要翻译：两个数据存储系统通过用于数据远程镜像的数据链路相互连接。每卷数据被配置为本地，主要在远程镜像卷对中，或辅助在远程镜像卷对中。通常，主机直接访问本地或主卷，并且写入主卷的数据将通过链接自动发送到相应的辅助卷。每个远程镜像卷对可以在所选择的同步模式中操作，包括同步，半同步，自适应复制远程写入挂起和自适应复制盘。如果为卷设置了“需要同步”属性，并且卷未同步，则对副卷的直接写入访问被拒绝。如果对远程镜像卷对启用“体积多米诺骨牌”模式，则在其他卷无法访问时，对该卷的访问将被拒绝。在“连接多米诺骨牌”模式下，当远程镜像被全连接故障中断时，对所有远程镜像卷的访问被拒绝。多米诺骨牌模式可用于启动基于应用程序的恢复，例如，使用辅助日志文件恢复辅助数据文件。在主动迁移模式下，主卷的主机处理与迁移到辅助卷并发。在覆盖缓存模式下，高速缓存中的远程写挂起数据可以被覆盖。整个主机通道命令字链的写入数据捆绑在一个链路传输中。

9. 发明授权

US6052797A Remotely mirrored data storage system with a count indicative of data consistency 有权
标题翻译：远程镜像数据存储系统，计数表示数据一致性
公开(公告)号：US6052797A
公开(公告)日：2000-04-18
申请号：US137546
申请日：1998-08-20
申请人： Yuval Ofek , Natan Vishlitzky , Haim Kopylovitz
发明人： Yuval Ofek , Natan Vishlitzky , Haim Kopylovitz
IPC分类号： G06F11/20 , G06F13/00 , H01J13/00
CPC分类号： G06F11/2064 , G06F11/2069 , G06F11/2071 , G06F11/2074 , G06F11/2079
摘要： Two data storage systems are interconnected by a data link for remote mirroring of data. Each volume of data is configured as local, primary in a remotely mirrored volume pair, or secondary in a remotely mirrored volume pair. Normally, a host computer directly accesses either a local or a primary volume, and data written to a primary volume is automatically sent over the link to a corresponding secondary volume. Each remotely mirrored volume pair can operate in a selected synchronization mode including synchronous, semi-synchronous, adaptive copy--remote write pending, and adaptive copy--disk. Each write request transmitted over the link between the data storage systems includes not only the data for at least one track in the secondary volume to be updated but also the current "invalid track" count for the secondary volume as computed by the data storage system containing the corresponding primary volume. Therefore, once a disaster occurs that destroys the data storage system containing the primary volume, the data storage system containing the secondary volume has an indication of the degree of consistency of the secondary volume. The "invalid tracks" count can be used to determine an appropriate recovery operation for the volume, and can be used to selectively restrict read/write access to the volume when the user decides that synchronization should be required for a write access. Moreover, direct write access to a secondary volume is denied if remote mirroring is not suspended.
摘要翻译：两个数据存储系统通过用于数据远程镜像的数据链路相互连接。每卷数据被配置为本地，主要在远程镜像卷对中，或辅助在远程镜像卷对中。通常，主机直接访问本地或主卷，并且写入主卷的数据将通过链接自动发送到相应的辅助卷。每个远程镜像卷对可以在所选择的同步模式中操作，包括同步，半同步，自适应复制远程写入挂起和自适应复制盘。通过数据存储系统之间的链路发送的每个写入请求不仅包括要被更新的辅助卷中的至少一个轨道的数据，还包括由数据存储系统计算出的辅助卷的当前“无效轨道”计数，相应的主卷。因此，一旦出现破坏包含主卷的数据存储系统的灾难，包含辅助卷的数据存储系统就会显示辅助卷的一致性程度。可以使用“无效轨道”计数来确定卷的适当的恢复操作，并且可以用于在用户决定写入访问需要同步时，选择性地限制对卷的读/写访问。此外，如果远程镜像未挂起，则对副卷的直接写入访问将被拒绝。

10. 发明授权

US5987566A Redundant storage with mirroring by logical volume with diverse reading process 有权
标题翻译：冗余存储，具有逻辑卷的镜像，具有不同的读取过程
公开(公告)号：US5987566A
公开(公告)日：1999-11-16
申请号：US167161
申请日：1998-10-06
申请人： Natan Vishlitzky , Yuval Ofek , Eitan Bachmat
发明人： Natan Vishlitzky , Yuval Ofek , Eitan Bachmat
IPC分类号： G06F11/20 , G06F12/08 , G06F12/02 , G06F12/16
CPC分类号： G06F11/2061 , G06F11/2071 , G06F12/0866 , G06F2212/312
摘要： A mirrored memory for a data processing system. The memory system includes two device controllers and related disk drives for storing the mirrored data. Each of the disk drives is divided into logical volumes. Each device controller contains a plurality of reading processes and a correspondence table that establishes the reading process to be used in retrieving data from the corresponding disk drive. Each disk controller responds to a read command that identifies the logical volume by using the correspondence table to select the appropriate reading process and by transferring data from appropriate physical storage device containing the designated logical volume.
摘要翻译：用于数据处理系统的镜像存储器。存储器系统包括用于存储镜像数据的两个设备控制器和相关磁盘驱动器。每个磁盘驱动器分为逻辑卷。每个设备控制器包含多个读取过程和对应表，其建立用于从相应的磁盘驱动器检索数据的读取过程。每个磁盘控制器通过使用对应表来响应识别逻辑卷的读取命令，以选择适当的读取过程，并通过从包含指定的逻辑卷的适当物理存储设备传送数据。

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