Invention Grant
- Patent Title: Reducing stress on RAIDS under rebuild
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Application No.: US14754576Application Date: 2015-06-29
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Publication No.: US10013171B2Publication Date: 2018-07-03
- Inventor: Herve G. P. Andre , Rashmi Chandra , Glynis G. Dsouza , Larry Juarez , Tony Leung , Igor Popov , Jacob L. Sheppard , Todd C. Sorenson
- Applicant: International Business Machines Corporation
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agency: Nelson and Nelson
- Agent Daniel P. Nelson; Alexis V. Nelson
- Main IPC: G06F3/06
- IPC: G06F3/06

Abstract:
A method for reducing stress on a RAID under rebuild is disclosed herein. In one embodiment, such a method includes performing the following actions while the RAID is undergoing a rebuild process: (1) redirect writes intended for the RAID to a temporary storage area located on a same primary storage system as the RAID, and (2) redirect reads intended for the RAID to a secondary storage system configured to store a copy of data in the RAID. The method is further configured to perform the following actions upon completing the rebuild process: (3) update the rebuilt RAID to reflect writes made to the temporary storage area during the rebuild process, and (4) redirect reads and writes to the rebuilt RAID. A corresponding system and computer program product are also disclosed.
Public/Granted literature
- US20160378339A1 REDUCING STRESS ON RAIDS UNDER REBUILD Public/Granted day:2016-12-29
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