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1. 发明公开

EP1498818A2 Address distribution among independent cache memories 有权转让
标题翻译： AdressenverteilungüberunabhängigeCachespeicher
公开(公告)号：EP1498818A2
公开(公告)日：2005-01-19
申请号：EP04254198.7
申请日：2004-07-14
申请人： XIV Ltd.
发明人： Zohar, Ofir , Revah, Yaron , Helman, Haim , Cohen, Dror
IPC分类号： G06F12/08 , G06F12/06 , G06F3/06
CPC分类号： G06F12/0873 , G06F3/0601 , G06F12/0851 , G06F2003/0697 , G06F2212/261 , G06F2212/283
摘要： A system (10) for transferring data to and from one or more slow-access-time-mass-storage nodes (12) which store data at respective first ranges of logical block addresses (LBAs), including a plurality of interim-fast-access-time nodes (20) which are configured to operate independently of one another. Each interim-fast-access-time node (20) is assigned a respective second range of the LBAs and is coupled to receive data from and provide data to the one or more slow-access-time-mass-storage nodes (12) within the respective second range.
The system (10) further includes one or more interface nodes (26), which are adapted to receive input/output (10) requests from host processors (52) directed to specified LBAs and to direct all the IO requests to the interim-fast-access-time node to which the specified LBAs are assigned.
摘要翻译：一种用于将数据传送到一个或多个缓慢访问时间质量存储节点（12）的系统（10），所述缓慢访问时间 - 质量 - 存储节点存储在逻辑块地址（LBA）的相应第一范围处的数据，包括多个临时快速存储节点访问时间节点（20），其被配置为彼此独立地操作。每个临时快速访问时间节点（20）被分配了LBA的相应的第二范围，并被耦合以从其中接收数据并向数据提供数据到一个或多个慢访问时间质量存储节点（12）内各自的第二范围。系统（10）还包括一个或多个接口节点（26），其适于从主处理器（52）接收指向指定的LBA的输入/输出（10）请求，并将所有IO请求引导到临时快速 - 指定的LBA被分配到的接入时间节点。

2. 发明授权

US07430641B2 System method and circuit for retrieving into cache data from one or more mass data storage devices 失效
标题翻译：用于从一个或多个大容量数据存储设备检索到高速缓存数据的系统方法和电路
公开(公告)号：US07430641B2
公开(公告)日：2008-09-30
申请号：US10974236
申请日：2004-10-27
申请人： Ofir Zohar , Yaron Revah , Haim Helman , Dror Cohen , Shemer Schwartz
发明人： Ofir Zohar , Yaron Revah , Haim Helman , Dror Cohen , Shemer Schwartz
IPC分类号： G06F12/00
CPC分类号： G06F12/0862 , G06F12/0866
摘要： According to some embodiments of the present invention, a data storage system may include a plurality of controllers connected or otherwise associated with one or more mass data storage devices. One controller may signal to one or more other controllers an indication as for which data blocks it has received requests. A prefetch decision module on a controller may decide to prefetch some or all of the data blocks associated with a given logical data unit based on data block requests it has received and based on requests received by other controllers. A prefetch decision module on a first controller may signal one or more other controllers to prefetch one or more data blocks associated with a given logical unit and which reside on mass storage devices either connected or otherwise associated with each of the one or more controllers.
摘要翻译：根据本发明的一些实施例，数据存储系统可以包括与一个或多个大容量数据存储设备连接或以其他方式相关联的多个控制器。一个控制器可以向一个或多个其他控制器发送关于其已经接收到请求的数据块的指示。控制器上的预取决定模块可以基于其接收到的数据块请求，并根据其他控制器接收到的请求，决定预取与给定逻辑数据单元相关联的一些或全部数据块。第一控制器上的预取决定模块可以用信号通知一个或多个其他控制器来预取与给定逻辑单元相关联的一个或多个数据块，并且驻留在与一个或多个控制器中的每一个连接或以其他方式相关联的大容量存储设备上。

3. 发明授权

US07302604B2 Remote management commands in a mass storage system 有权
标题翻译：大容量存储系统中的远程管理命令
公开(公告)号：US07302604B2
公开(公告)日：2007-11-27
申请号：US11057934
申请日：2005-02-15
申请人： Ofir Zohar , Yaron Revah , Haim Helman , Dror Cohen , Shemer Schwartz
发明人： Ofir Zohar , Yaron Revah , Haim Helman , Dror Cohen , Shemer Schwartz
IPC分类号： G06F12/16
CPC分类号： G06F11/2082 , G06F11/2076 , G06F2201/87
摘要： A method for managing activity of a data storage system including a primary storage facility and a secondary storage facility. The method includes mirroring a first logical unit in the primary facility on a second logical unit in the secondary facility, and receiving a command to perform a data storage management activity on the first logical unit. The method further includes synchronizing the second logical unit with the first logical unit responsive to the command, and performing the command on the first logical unit and the second logical unit simultaneously following synchronization.
摘要翻译：一种用于管理包括主存储设施和辅助存储设施的数据存储系统的活动的方法。该方法包括在辅助设施中的第二逻辑单元上镜像主设备中的第一逻辑单元，以及接收在第一逻辑单元上执行数据存储管理活动的命令。该方法还包括响应于该命令使第二逻辑单元与第一逻辑单元同步，并且在同步之后同时在第一逻辑单元和第二逻辑单元上执行命令。

4. 发明申请

US20070124555A1 Restricting access to improve data availability 有权
标题翻译：限制访问以提高数据可用性
公开(公告)号：US20070124555A1
公开(公告)日：2007-05-31
申请号：US11290274
申请日：2005-11-30
申请人： Ofir Zohar , Haim Helman , Efri Zeidner , Shemer Schwartz
发明人： Ofir Zohar , Haim Helman , Efri Zeidner , Shemer Schwartz
IPC分类号： G06F12/14
CPC分类号： G06F12/0866 , G06F12/0862 , G06F2212/283
摘要： I/O requests from hosts in a data storage system are blocked or rate-restricted upon detection of an unbalanced or overload condition in order to prevent timeouts by host computers, and achieve an aggregate reduction of data access latency. The blockages are generally of short duration, and are transparent to hosts, so that host timeouts are unlikely to occur. During the transitory suspensions of new I/O requests, server queues shorten, after which I/O requests are again enabled.
摘要翻译：在检测到不平衡或过载状况时，数据存储系统中主机的I / O请求被阻止或限速，以防止主计算机超时，并实现数据访问延迟的总体减少。阻塞通常时间短，对主机是透明的，因此主机超时不可能发生。在新的I / O请求暂停期间，服务器队列缩短，之后再次启用I / O请求。

5. 发明申请

US20060253683A1 Data storage methods for hierarchical copies 失效
公开(公告)号：US20060253683A1
公开(公告)日：2006-11-09
申请号：US11123993
申请日：2005-05-06
申请人： Ofir Zohar , Yaron Revah , Haim Helman , Dror Cohen , Shemer Schwartz
发明人： Ofir Zohar , Yaron Revah , Haim Helman , Dror Cohen , Shemer Schwartz
IPC分类号： G06F12/00 , G06F12/16
CPC分类号： G06F3/0665 , G06F3/0605 , G06F3/065 , G06F3/067 , G06F11/2071
摘要： A method for copying a logical volume in a data storage system, including forming a first logical volume having one or more logical partitions and storing data at a physical location associated with the one or more logical partitions. The method further includes receiving a first command to copy the first logical volume to a second logical volume, and responsively to the first command, assigning the one or more logical partitions to a meta-volume and linking the meta-volume to the first and second logical volumes. The method also includes receiving a second command to access the data in at least one of the first and second logical volumes, responsively to the second command, using a partition descriptor record associated with the meta-volume to identify the physical location, and providing access to the data at the physical location.

6. 发明申请

US20060143497A1 System, method and circuit for mirroring data 有权
标题翻译：用于镜像数据的系统，方法和电路
公开(公告)号：US20060143497A1
公开(公告)日：2006-06-29
申请号：US11022448
申请日：2004-12-23
申请人： Ofir Zohar , Yaron Revah , Haim Helman , Dror Cohen , Shemer Schwartz
发明人： Ofir Zohar , Yaron Revah , Haim Helman , Dror Cohen , Shemer Schwartz
IPC分类号： G06F11/00
CPC分类号： G06F11/2058 , G06F11/2071
摘要： Disclosed is a system, method and circuit for mirroring data on a data server. According to some embodiments of the present invention, a primary mirroring module associated with a primary server may be adapted to establish data mirroring connections between the primary server and both a primary slave mirroring module functionally associated with a primary mirror server and with a secondary slave mirroring module functionally associated with a secondary mirror server. When sensing that a mirroring connection with the primary server has been terminated, the primary slave mirroring module may establish a mirroring connection with the second slave mirroring module and may reconcile data between the primary and secondary mirror servers.
摘要翻译：公开了一种用于在数据服务器上镜像数据的系统，方法和电路。根据本发明的一些实施例，与主服务器相关联的主镜像模块可以适于在主服务器与功能上与主镜像服务器功能相关联的主从镜像模块与辅助从镜像之间建立数据镜像连接模块功能上与辅助镜像服务器相关联。当检测到与主服务器的镜像连接已经终止时，主从镜像模块可以与第二从镜像模块建立镜像连接，并且可以在主镜像服务器和辅镜像服务器之间协调数据。

7. 发明授权

US07490213B2 Dynamic allocation of storage for hierarchical copies 失效
标题翻译：分层复制的动态分配存储
公开(公告)号：US07490213B2
公开(公告)日：2009-02-10
申请号：US11265323
申请日：2005-11-02
申请人： Ofir Zohar , Yaron Revah , Haim Helman , Dror Cohen , Shemer Schwartz , Efri Zeidner
发明人： Ofir Zohar , Yaron Revah , Haim Helman , Dror Cohen , Shemer Schwartz , Efri Zeidner
IPC分类号： G06F12/00
CPC分类号： G06F3/0665 , G06F3/0605 , G06F3/065 , G06F3/067 , G06F11/2071
摘要： A method for managing multiple logical volumes in a data storage system, including providing physical storage of a given capacity within the data storage system, and adding a logical volume of a given size within the data storage system so as to cause a total amount of logical storage of the logical volumes in the data storage system to be greater than the given capacity of the physical storage. The method includes verifying, in response to a write command to store data in the logical volume, that a physical storage location is available in the physical storage and, if the physical storage location is available, then storing the data at the physical storage location.
摘要翻译：一种用于管理数据存储系统中的多个逻辑卷的方法，包括提供所述数据存储系统内的给定容量的物理存储，以及在所述数据存储系统内添加给定大小的逻辑卷，以便产生总量的逻辑将数据存储系统中的逻辑卷的存储大于物理存储的给定容量。该方法包括：响应于在逻辑卷中存储数据的写入命令来验证物理存储位置在物理存储器中是可用的，并且如果物理存储位置可用，则将数据存储在物理存储位置。

8. 发明申请

US20070067583A1 Managing snapshot history in a data storage system 失效
标题翻译：管理数据存储系统中的快照历史记录
公开(公告)号：US20070067583A1
公开(公告)日：2007-03-22
申请号：US11229954
申请日：2005-09-19
申请人： Ofir Zohar , Shemer Schwartz , Efri Zeidner
发明人： Ofir Zohar , Shemer Schwartz , Efri Zeidner
IPC分类号： G06F12/16 , G06F12/00
CPC分类号： G06F11/1458 , G06F2201/84
摘要： A method for creating logical volume snapshots in a data storage system, including receiving a first write command to write first data to a partition of a logical volume, generating a first partition descriptor record (PDR), and storing the first data at a first physical location associated with the first PDR. A snapshot command is then received to form a snapshot of the logical volume, after which a second write command is received to write second data to the partition. In response to the second write command, a second PDR is generated and the second data is stored at a second physical location associated with the second PDR. A pointer between the first PDR and the second PDR is generated. In response to a read command indicating a number of a desired snapshot of the logical volume, the first PDR is accessed using the pointer.
摘要翻译：一种用于在数据存储系统中创建逻辑卷快照的方法，包括接收第一写入命令以将第一数据写入逻辑卷的分区，生成第一分区描述符记录（PDR），以及将第一数据存储在第一物理与第一个PDR相关联的位置。然后接收快照命令以形成逻辑卷的快照，之后接收到第二写入命令以将第二数据写入分区。响应于第二写命令，产生第二PDR，并且第二数据被存储在与第二PDR相关联的第二物理位置处。生成第一PDR和第二PDR之间的指针。响应于指示逻辑卷的所需快照的数量的读取命令，使用指针访问第一PDR。

9. 发明申请

US20070033370A1 Continuous data protection 失效
标题翻译：持续数据保护
公开(公告)号：US20070033370A1
公开(公告)日：2007-02-08
申请号：US11196721
申请日：2005-08-03
申请人： Ofir Zohar , Yaron Revah , Haim Helman , Dror Cohen , Shemer Schwartz
发明人： Ofir Zohar , Yaron Revah , Haim Helman , Dror Cohen , Shemer Schwartz
IPC分类号： G06F12/00
CPC分类号： G06F21/80 , G06F11/1435
摘要： A method for continuous data protection in a storage system, including receiving a first write command to write first data to a partition of a logical volume and then generating a first partition descriptor record (PDR) having a first timestamp. The method further includes storing the first data at a first location, associating the first PDR with the first location, and receiving a second write command, subsequent to the first command, to update the first data with second data. Responsively to the second command, a second PDR having a second timestamp is generated. The second data is stored at a second location, and the second PDR is associated with the second location. The method includes generating a pointer between the first PDR and the second PDR, and accessing the first PDR using the pointer in response to a read command indicating a time prior to the second timestamp.
摘要翻译：一种用于存储系统中的连续数据保护的方法，包括接收第一写入命令以将第一数据写入到逻辑卷的分区，然后生成具有第一时间戳的第一分区描述符记录（PDR）。该方法还包括将第一数据存储在第一位置，将第一PDR与第一位置相关联，以及在第一命令之后接收第二写入命令，以用第二数据更新第一数据。响应于第二命令，产生具有第二时间戳的第二PDR。第二数据被存储在第二位置，并且第二PDR与第二位置相关联。该方法包括在第一PDR和第二PDR之间生成指针，以及响应于指示第二时间戳之前的时间的读取命令，使用指针访问第一PDR。

10. 发明申请

US20060143395A1 Method and apparatus for managing a cache memory in a mass-storage system 失效
标题翻译：用于在大容量存储系统中管理高速缓冲存储器的方法和装置
公开(公告)号：US20060143395A1
公开(公告)日：2006-06-29
申请号：US11243210
申请日：2005-10-04
申请人： Ofir Zohar , Yaron Revah , Haim Helman , Dror Cohen , Shemer Schwartz
发明人： Ofir Zohar , Yaron Revah , Haim Helman , Dror Cohen , Shemer Schwartz
IPC分类号： G06F12/00
CPC分类号： G06F12/126
摘要： In accordance with some embodiments of the present invention, there is provided a cache management module for managing a cache memory device, comprising a groups management module adapted to define groups of allocation units in accordance with at least an operative criterion and to create a new group of allocation units whenever it is determined that in accordance with at least the operative criterion none of the one or more existing groups is appropriate to include an allocation unit, and a replacement procedure module adapted to manage the cache in terms of groups of allocation units, rather than in terms of discrete allocation units.
摘要翻译：根据本发明的一些实施例，提供了一种用于管理高速缓冲存储器设备的高速缓存管理模块，包括：组管理模块，其适于根据至少一个操作标准来定义分组单元，并且创建一个新组只要确定至少根据操作标准，一个或多个现有组中的任何一个都不适于包括分配单元，以及适于根据分配单元组管理高速缓存的替换过程模块，而不是离散分配单位。

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