Error detection/correction and fault detection/recovery – Data processing system error or fault handling – Reliability and availability
Reexamination Certificate
2004-09-23
2008-03-18
McCarthy, Christopher (Department: 2113)
Error detection/correction and fault detection/recovery
Data processing system error or fault handling
Reliability and availability
C711S114000
Reexamination Certificate
active
07346804
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.
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U.S. Appl. No. 10/948.442, Forrer, Jr. et al. Hard Disk Drive Background Scrub Methodology, filed Sep. 23, 2004.
Forrer, Jr. Thomas R.
Moore Jason Eric
Zuzuarregui Abel Enrique
Bailey Wayne P.
Beausoliel Robert
Gerhardt Diana R.
McCarthy Christopher
Yee Duke W.
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