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METHOD TO IMPROVE DATA RELIABILITY IN HDD SYSTEMS USING LOAD/UNLOAD

IP.com Disclosure Number: IPCOM000013381D
Original Publication Date: 2000-Apr-01
Included in the Prior Art Database: 2003-Jun-18

Publishing Venue

IBM

Abstract

A method of reducing the risk for data loss caused by media damage and/or erasure in load/unload hard disk drives is described, consisting of three parts: 1) Remap the file LBAs so that the portion of the disk closest to the L/UL ramp corresponds to the highest LBAs. 2) Replace all write commands applied against the LBAs corresponding to the portion of disk real estate closest to the L/UL ramp with "write/verify" commands. 3) Execute packscans of the portion of disk real estate closest to the L/UL ramp during file idle periods. Update the grown defect list with any detected defective locations.