Data Recovery

Topics: Hard disk drive, Serial ATA, Parallel ATA Pages: 40 (15337 words) Published: March 6, 2011
Data Recovery Book V1.0 (Visit http://www.easeus.com for more information)

DATA RECOVERY BOOK

V1.0

FOREWORD ---------------------------------------------------------------------------------------------------------------------The core of information age is the information technology, while the core of the information technology consists in the information process and storage. Along with the rapid development of the information and the popularization of the personal computer, people find information more and more useful and need it ever more than the past. Owning to the massive data, there is a huge challenge to the data storage technology. So how to save so many documents and how to visit document as fast as possible become the key point. We know we need storage devices to save data, while there are so many kinds of storage devices and modes to save data. What’s more, when saving the data and information, it is more important to ensure the storage security as well as the accuracy, usability, reliability of data. Often, what is invaluable is that invisible data. CONTENTS ---------------------------------------------------------------------------------------------------------------------Ⅰ.Elementary knowledge of data recovery..................................................................................3 1.Connotation of data................................................................................................................3 2.The essence of data recovery .................................................................................................3 3.The scope of data recovery ....................................................................................................3 4.The principle of data recovery ...............................................................................................4 Ⅱ.Data loss ......................................................................................................................................4 1.Software reason......................................................................................................................4 2.Hardware reason ....................................................................................................................5 Ⅲ.Data Protecting Technologies ....................................................................................................6 1.SMART Technology ..............................................................................................................6 2.SPS.........................................................................................................................................6 3.DFT ........................................................................................................................................6 4.Floppy disk array technology.................................................................................................6 5.SAN........................................................................................................................................7 6.NAS........................................................................................................................................7 7.Backup ...................................................................................................................................7 Ⅳ.Elementary knowledge of hard disk.........................................................................................7 1.History of hard disk development ..........................................................................................8 2.Main technical specification and parameter of hard disk.......................................................9 3.Physical structure of hard disk .............................................................................................11 4.Logical organization of hard...
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