Method, system, and program for data synchronization between a primary storage device and a secondary storage device by determining whether a first identifier and a second identifier match, where a unique identifier is associated with each portion of data

Invention Grant

US07647462B2 Method, system, and program for data synchronization between a primary storage device and a secondary storage device by determining whether a first identifier and a second identifier match, where a unique identifier is associated with each portion of data 失效

Title translation: 通过确定第一标识符和第二标识符是否匹配，其中唯一标识符与数据的每个部分相关联，用于主存储设备和辅助存储设备之间的数据同步的方法，系统和程序

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Patent Title: Method, system, and program for data synchronization between a primary storage device and a secondary storage device by determining whether a first identifier and a second identifier match, where a unique identifier is associated with each portion of data
Patent Title (中): 通过确定第一标识符和第二标识符是否匹配，其中唯一标识符与数据的每个部分相关联，用于主存储设备和辅助存储设备之间的数据同步的方法，系统和程序
Application No.: US11548220

Application Date: 2006-10-10
Publication No.: US07647462B2

Publication Date: 2010-01-12
Inventor: John Jay Wolfgang , Kenneth Wayne Boyd , Kenneth Fairclough Day, III , Philip Matthew Doatmas , Kirby Grant Dahman
Applicant: John Jay Wolfgang , Kenneth Wayne Boyd , Kenneth Fairclough Day, III , Philip Matthew Doatmas , Kirby Grant Dahman
Applicant Address: US NY Armonk
Assignee: International Business Machines Corporation
Current Assignee: International Business Machines Corporation
Current Assignee Address: US NY Armonk
Agent Janaki K. Davda
Main IPC: G06F17/30
IPC: G06F17/30 ; G06F7/00 ; G06F16/16 ; G06F12/00

Method, system, and program for data synchronization between a primary storage device and a secondary storage device by determining whether a first identifier and a second identifier match, where a unique identifier is associated with each portion of data

Abstract:

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.

Abstract(Chinese):

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。

Public/Granted literature

US20070130216A1 METHOD, SYSTEM, AND PROGRAM FOR DATA SYNCHRONIZATION Public/Granted day:2007-06-07

Information query

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