公开(公告)号：US07693886B1

公开(公告)日：2010-04-06

申请号：US11640019

申请日：2006-12-15

Applicant: Yoram Novick ,  Erez Webman ,  Orly Devor

Inventor： Yoram Novick ,  Erez Webman ,  Orly Devor

IPC: G06F7/00

CPC classification number: G06F17/30902 ,  H04L67/1095

Abstract: A delta query technique transmits only latest changes to data of objects from a server to one or more clients in response to a client query (request) to access the object data. A global counter is maintained for all of the objects served by the server. Every time the data of an object changes, a value of the global counter increments (updates) and the updated global counter value is then assumed (“inherited”) by that object. In addition, the global counter is updated when a client issues a request to access one or more objects. If the data of the objects has changed since the last time the client accessed the objects, the server responds with the latest object data and the updated global counter value. Notably, each client maintains a local counter having a value that, upon receipt of the latest object data, is modified to reflect the updated global counter value.

Abstract translation: 增量查询技术仅响应于访问对象数据的客户机查询（请求），将对对象数据的最新更改仅从服务器传输到一个或多个客户端。 维护服务器所服务的所有对象的全局计数器。 每次对象的数据更改时，全局计数器的值递增（更新），然后由该对象假定（“继承”）更新的全局计数器值。 另外，当客户端发出访问一个或多个对象的请求时，全局计数器被更新。 如果对象的数据自上次客户端访问对象以来发生变化，服务器将使用最新的对象数据和更新的全局计数器值进行响应。 值得注意的是，每个客户端维护本地计数器，其具有在接收到最新对象数据时被修改以反映更新的全局计数器值的值。

公开(公告)号：US08099727B2

公开(公告)日：2012-01-17

申请号：US11756904

申请日：2007-06-01

Applicant: Lior Bahat ,  Orly Devor ,  Dvir Koren ,  Ofer Elrom

Inventor： Lior Bahat ,  Orly Devor ,  Dvir Koren ,  Ofer Elrom

IPC: G06F9/44

CPC classification number: G06F8/656 ,  G06F11/2097

Abstract: A software upgrade tool and procedure provide uninterrupted operation of a replication system during an upgrade of software components of the system. The replication system includes one or more user systems coupled to one or more target storage systems over a communications network, such as a computer network. Illustratively, each user system is embodied as a replication client, while each target storage system is embodied as a replication server. In addition, the replication system includes a management system embodied as a management server that manages configuration of the system, including during upgrade of the software components of the replication system. To that end, the software upgrade tool cooperates with the management server to query the configuration of “old” versions of the software components and to manage upgrades of those components to “new” versions of software. According to the invention, the upgrade tool and procedure enable both the old and new versions of the software components to run concurrently on the replication client and replication server, as well as the management server.

Abstract translation: 软件升级工具和程序在升级系统的软件组件期间提供复制系统的不间断操作。 复制系统包括通过诸如计算机网络的通信网络耦合到一个或多个目标存储系统的一个或多个用户系统。 说明性地，每个用户系统被体现为复制客户端，而每个目标存储系统被体现为复制服务器。 此外，复制系统包括体现为管理系统的配置的管理服务器的管理系统，包括在升级复制系统的软件组件期间。 为此，软件升​​级工具与管理服务器配合，查询软件组件的“旧”版本的配置，并管理这些组件升级到“新”版本的软件。 根据本发明，升级工具和过程使得旧的和新版本的软件组件能够在复制客户机和复制服务器以及管理服务器上同时运行。

公开(公告)号：US20080301663A1

公开(公告)日：2008-12-04

申请号：US11756904

申请日：2007-06-01

Applicant: Lior Bahat ,  Orly Devor ,  Dvir Koren ,  Ofer Elrom

Inventor： Lior Bahat ,  Orly Devor ,  Dvir Koren ,  Ofer Elrom

IPC: G06F9/44

CPC classification number: G06F8/656 ,  G06F11/2097

Abstract: A software upgrade tool and procedure provide uninterrupted operation of a replication system during an upgrade of software components of the system. The replication system includes one or more user systems coupled to one or more target storage systems over a communications network, such as a computer network. Illustratively, each user system is embodied as a replication client, while each target storage system is embodied as a replication server. In addition, the replication system includes a management system embodied as a management server that manages configuration of the system, including during upgrade of the software components of the replication system. To that end, the software upgrade tool cooperates with the management server to query the configuration of “old” versions of the software components and to manage upgrades of those components to “new” versions of software. According to the invention, the upgrade tool and procedure enable both the old and new versions of the software components to run concurrently on the replication client and replication server, as well as the management server.

Abstract translation: 软件升级工具和程序在升级系统的软件组件期间提供复制系统的不间断操作。 复制系统包括通过诸如计算机网络的通信网络耦合到一个或多个目标存储系统的一个或多个用户系统。 说明性地，每个用户系统被体现为复制客户端，而每个目标存储系统被体现为复制服务器。 此外，复制系统包括体现为管理系统的配置的管理服务器的管理系统，包括在升级复制系统的软件组件期间。 为此，软件升​​级工具与管理服务器配合，查询软件组件的“旧”版本的配置，并管理这些组件升级到“新”版本的软件。 根据本发明，升级工具和过程使得旧的和新版本的软件组件能够在复制客户端和复制服务器以及管理服务器上同时运行。