Title :
Head-media interface instability under hostile operating conditions
Author :
Tunstall, Glen ; Clegg, Warwick ; Jenkins, David ; Chilumbu, Chibesa
Author_Institution :
Centre for Res. in Inf. Storage Technol., Plymouth Univ., UK
Abstract :
In the office environment computers reliably transfer data to and from the hard disk drive, and data transfer errors are extremely rare. However, when even “ruggedised” computers are operated in hostile conditions valuable data can be lost as a result of read-write error due to either shock or vibration, seriously impairing drive performance. For this work drives have been vibrated over large frequency ranges in order to characterise their data-transfer performance. In order to observe the cause of the problems a drive has been modified with integral sensors to identify internal system failures, and the results of these investigations are presented
Keywords :
disc drives; finite element analysis; hard discs; laptop computers; magnetic heads; mechanical stability; resonance; vibrations; FEA; active control; data transfer errors; data-transfer performance; flying height; hard disk drive; head-media interface instability; hostile operating conditions; integral sensors; internal system failures; large frequency range; read-write error; resonance; ruggedised laptops; tracking errors; vibration effect; Computer errors; Drives; Electric shock; Environmental economics; Frequency; Hard disks; Oceans; Sensor phenomena and characterization; Sensor systems; Vibration measurement;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 2000. IMTC 2000. Proceedings of the 17th IEEE
Conference_Location :
Baltimore, MD
Print_ISBN :
0-7803-5890-2
DOI :
10.1109/IMTC.2000.846913
