Invention Grant
US08914668B2 Asynchronous raid stripe writes to enable response to media errors
有权
异步RAID条带写入,以响应媒体错误
- Patent Title: Asynchronous raid stripe writes to enable response to media errors
- Patent Title (中): 异步RAID条带写入,以响应媒体错误
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Application No.: US13605350Application Date: 2012-09-06
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Publication No.: US08914668B2Publication Date: 2014-12-16
- Inventor: Gary D. Cudak , Christopher J. Hardee , Randall C. Humes , Adam Roberts
- Applicant: Gary D. Cudak , Christopher J. Hardee , Randall C. Humes , Adam Roberts
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agent Katherine S. Brown; Jeffrey L. Streets
- Main IPC: G06F11/00
- IPC: G06F11/00

Abstract:
A method includes detecting that a first file and a second file are duplicates, and storing the first file and the second file to a target storage device. Metadata is written to the target storage device in association with the first file, wherein the metadata identifies the location of the second file that is a duplicate of the first file. Later, an application program requests a first read operation to read the first file. In response to a media error that results from the first read operation, the target storage device reads the metadata associated with the first file to identify the location of the second file, performs a second read operation to read the second file instead of the first file, and provides the second file to the application program in satisfaction of the requested first read operation.
Public/Granted literature
- US20140068324A1 ASYNCHRONOUS RAID STRIPE WRITESTO ENABLE RESPONSE TO MEDIA ERRORS Public/Granted day:2014-03-06
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