Invention Grant
- Patent Title: Hard disk drive data scrub methodology
- Patent Title (中): 硬盘驱动器数据刷新方法
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Application No.: US11968391Application Date: 2008-01-02
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Publication No.: US07653838B2Publication Date: 2010-01-26
- Inventor: Thomas R. Forrer, Jr. , Jason Eric Moore , Abel Enrique Zuzuarregui
- Applicant: Thomas R. Forrer, Jr. , Jason Eric Moore , Abel Enrique Zuzuarregui
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agency: Yee & Associates, P.C.
- Agent Diana R. Gerhardt
- Main IPC: G06F11/00
- IPC: G06F11/00

Abstract:
Method, system and computer program product for reporting and recovering from uncorrectable data errors in a data processing system using the Advanced Technology Attachment (ATA) or the Serial ATA (SATA) protocol. The invention utilizes the data scrubbing functionality of SCSI hard drives to provide a higher level of data integrity in an operating system implemented RAID environment. If an uncorrectable data error is found on a hard drive during a background data scrubbing operation, information concerning the data error is logged in a S.M.A.R.T. (Self Monitoring Analysis and Reporting Technology) error data structure. When the host operating system identifies the uncorrectable data error during normal operation, a Host Array Manager issues a Write Command to write the data from a redundant drive after the defective Logical Block Address (LBA) has been reassigned.
Public/Granted literature
- US20080104446A1 HARD DISK DRIVE DATA SCRUB METHODOLOGY Public/Granted day:2008-05-01
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