Invention Grant
- Patent Title: Remapping disk drive I/O in response to media errors
- Patent Title (中): 重新映射磁盘驱动器I / O以响应介质错误
-
Application No.: US13605269Application Date: 2012-09-06
-
Publication No.: US08843784B2Publication Date: 2014-09-23
- 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 for handling media errors during a read operation on a data storage device. The method comprises detecting that a first file and a second file are duplicates, wherein the first file is stored on a first storage device. Metadata is written to the first 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 method 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
- US20140068323A1 REMAPPING DISK DRIVE I/O IN RESPONSE TO MEDIA ERRORS Public/Granted day:2014-03-06
Information query