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Firmware Tests with Hard Disk Simulation

Autor(en):
Yosuke Senta (Fujitsu Laboratory), 
Firma: Fujitsu Laboratory, Japan
Veröffentlicht: dSPACE NEWS 2002/2, Jun 2002

Fujitsu is one of the leading manufacturers of computer HDD units, building several million HDDs every month. In this business, with rapidly increasing requirements on HDD performance, the firmware of the HDD unit plays a key role. For example, servo controllers run by the firmware must control the arm of the HDD with a precision greater than a nanometer. Therefore, the characteristics of the mechanics and the recording magnetism cannot be neglected; they are vital factors that require thorough investigation.



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