Invention Grant
US07818522B2 Apparatus, system, and method for incremental resynchronization in a data storage system
有权
用于数据存储系统中增量重新同步的装置,系统和方法
- Patent Title: Apparatus, system, and method for incremental resynchronization in a data storage system
- Patent Title (中): 用于数据存储系统中增量重新同步的装置,系统和方法
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Application No.: US11852161Application Date: 2007-09-07
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Publication No.: US07818522B2Publication Date: 2010-10-19
- Inventor: Robert F. Bartfai , Michael E. Factor , Shachar Fienblit , Olympia Gluck , Gail A. Spear
- Applicant: Robert F. Bartfai , Michael E. Factor , Shachar Fienblit , Olympia Gluck , Gail A. Spear
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agency: Griffiths & Seaton PLLC
- Main IPC: G06F13/00
- IPC: G06F13/00

Abstract:
An apparatus, system, and method are disclosed for performing an incremental resynchronization between two unrelated volumes when a third volume fails. The apparatus, system, and method include initiating registration of changed tracks; keeping track of bytes in flight activities between a local volume and an intermediate volume; recording the changed tracks in bitmaps at the local volume; stopping the recording of the changed tracks; and starting a resynchronization process by sending the changed tracks to a recovery volume.
Public/Granted literature
- US20090070528A1 APPARATUS, SYSTEM, AND METHOD FOR INCREMENTAL RESYNCHRONIZATION IN A DATA STORAGE SYSTEM Public/Granted day:2009-03-12
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