Invention Grant
- Patent Title: RAID storage system with logical data group priority
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Application No.: US16053750Application Date: 2018-08-02
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Publication No.: US10825477B2Publication Date: 2020-11-03
- Inventor: Adam Roberts
- Applicant: Western Digital Technologies, Inc.
- Applicant Address: US CA San Jose
- Assignee: Western Digital Technologies, Inc.
- Current Assignee: Western Digital Technologies, Inc.
- Current Assignee Address: US CA San Jose
- Agency: Patent Law Works LLP
- Main IPC: G11B20/10
- IPC: G11B20/10 ; G11B19/20

Abstract:
Example redundant array of independent disks (RAID) storage systems and methods provide rebuild of logical data groups in priority order. Storage devices are configured as a storage array for storing logical data groups distributed among the storage devices. The logical data groups are written in a configuration of RAID stripes in the storage devices. A logical group index includes a logical group map for each logical data group and identifies corresponding logical blocks. When a storage device fails, the rebuild queue is ordered based on the priority of the logical data groups and rebuild to the replacement storage device is completed in the priority order.
Public/Granted literature
- US20200043524A1 RAID Storage System with Logical Data Group Priority Public/Granted day:2020-02-06
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