1 AIT Asian Institute of Technology

Speed negotiation improvement for hard disk drive serial ATA interface by considering host compatibility

AuthorApisak Srihamat
NoteA thesis submitted in partial fulfillment of the requirements for the degree of Master of Science in Microelectronics and Embedded Systems
PublisherAsian Institute of Technology
AbstractSerial ATA interface is mainly use in computer storage technology for a long time especially hard disk drive technology. The performance of interface is one of factor that causes hard disk transfer information faster or slower. And the problem of hard disk drive cannot be detected because of speed negotiation not successfully will cause hard disk drive not be able to load/store digital contents. The deeper understanding of the scenario that leading to worst performance then explanation relationship with speed negotiation was provided in this thesis. The goal is to study various parameters cause speed negotiation drop or not successfully negotiate speed in storage system by design model to experiment on physical parameters as components in storage system and logical parameters as speed negotiation logical implemented in Host and Device. Which Serial ATA specific called as Host Phy initialize state machine or Device Phy initialize state machine. Then setup models to execute the experiments to study and understand the results as target to consider scenario of host compatibility. The result of experimental showed speed negotiation in Serial ATA is only drop at the situation after Out of Band (OOB) signals are successfully transmitted and received (detected) between Host and Device, where by ALIGN primitives not detect at expected speed. Any parameters cause OOB unsuccessfully transmitted and received (detected) between Host and Device will results as cannot communication at all. This information leading to initiated new mechanism to carefully validate Serial ATA speed negotiation in Hard Disk Drive Company. And conclusion to increase visibility of speed negotiation results at end users to identify unexpected combination of storage system.
Year2014
TypeThesis
SchoolSchool of Engineering and Technology (SET)
DepartmentDepartment of Industrial Systems Engineering (DISE)
Academic Program/FoSMicroelectronics (ME)
Chairperson(s)Mongkol Ekpanyapong ;
Examination Committee(s)Dailey, Metthew N. ;Wai, Mak Chee ;
Scholarship Donor(s)Western Digital ;AIT Fellowship;


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