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Tilt adjusted RPO Command Reordering Scheme

IP.com Disclosure Number: IPCOM000015812D
Original Publication Date: 2002-Jun-01
Included in the Prior Art Database: 2003-Jun-21

Publishing Venue

IBM

Abstract

The main point of invention This invention is the RPO re-ordering method of the command queue aiming at the improvement in the performance of HDD (Hard Disc Drive). The feature of this invention is having added head change time to the waiting time which is the parameter of RPO re-ordering of command queue. Waiting time is expected waiting time including the generating probability of Miss-revolution. Only seek time was conventionally used for this. In this invention, such waiting time was added to the head change. The problem solved by invention Head change time is influenced of seek distance or ambient temperature. If this is not taken into consideration