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Choosing reliable, cost-effective data storage solutions—and making the most of them!
Whether you're an IT professional, enterprise manager, small business owner, or home PC user, you've got more data than ever—and choosing reliable, cost-effective storage has never been more important. Now, a leading data storage expert explains all your options, and shows you exactly how to make the most of them. Dr. Andrei Khurshudov reviews the capabilities, advantages, and underlying technologies associated with every current storage alternative, offering expert tips for buying, interfacing, scalability, recovery, and much more.
If you're planning for business growth and disaster recovery, or simply want the best storage "bang for the buck," The Essential Guide to Computer Data Storage delivers objective guidance—and realistic solutions.
Choosing reliable, cost-effective data storage solutions-and making the most of them! Dr. Andrei Khurshudov reviews the capabilities, advantages, and underlying technologies associated with every current storage alternative, offering expert tips for buying, interfacing, scalability, recovery, and much more.
|Brief History of Information Storage Technology||2|
|Digital and Analog Signals||15|
|IDE, EIDE, UDMA or ATA, and ATAPI||35|
|PC Card Interface (Former PCMCIA)||41|
|Universal Serial Bus (USB)||42|
|IEEE 1394 Firewire||47|
|Small Computer Systems Interface (SCSI)||55|
|Fibre Channel-Arbitrated Loop (FC-AL)||62|
|SSA (Serial Storage Architecture)||69|
|3||Magnetic Recording Storage Systems||71|
|Basic Principles of Magnetic Recording||74|
|Hard Disk Drive||90|
|Removable Magnetic Storage||114|
|Magnetic Storage on Tape||133|
|Compact Disc (CD)||168|
|5||Magneto-Optical Storage Systems||201|
|Basics of MO Recording||206|
|Basics of MO Reading||208|
|MO System: Basic Design||209|
|Direct Overwrite (DOW)||211|
|Magnetically Induced Super Resolution (MSR)||212|
|Understanding MO Drive Specifications||214|
|6||Nonvolatile Solid-State Memory||217|
|Basics of Semiconductor Memory Technology||221|
|Computer Random Access Memory (RAM)||225|
|Flash Memory Card Formats||235|
|Solid-State Hard Disk Drives||239|
|7||New Applications of Storage Devices||243|
|Personal Digital Assistants (PDA)||254|
|Personal Video Recorder||259|
|8||Storage on the Web||263|
|Internet Speed and Connections||265|
|Data Storage on the Web: Case Studies||271|
|9||SAN, NAS, and RAID Fundamentals||275|
|RAID (Redundant Array of Independent [or Inexpensive] Drives)||284|
|10||Data Loss and Recovery||293|
|Introduction: Why It Happens||294|
|How to Prevent Data Loss||296|
|Software for Data Protection and Recovery||297|
|What to do If the Disaster Already Happened||301|
|Data Recovery Services||306|
|How to Choose or Upgrade your DVD, HDD, or CD-ROM||307|
|Hard Disk Driver||309|
|Removable Magnetic Storage||314|
|CD, CD-R and CD-RW||316|
|Magnetic Tape Drive||322|
|Web Storage Alternatives||326|
A world without data storage is like a mankind without memory. Thanks to various information storage methods developed in the last 22,000 years, we are able to document our history, to learn from each other's experience, and, ultimately, to create the world as it is today.
The future of computing is dependent on how well the enormous amount of generated information will be managed. But which technology will be used in the future to store new knowledge and experiences? Will we use holographic storage? Or store data by moving single atoms? Or will data be stored via the Internet on huge storage servers 10,000 miles away from your home? Or will the more traditional magnetic and optical recording technologies survive for the next 10 to 50 years? It is hard to guess. The amount of data we have generated so far is small compared to what is coming tomorrow.
The purpose of this book is to provide a practical guide and an easy reference for the majority of computer users and technical professionals. Whether you are a beginner or an experienced PC user, you will find here some useful information on computer storage systems design, selection, and technology.
The focus of this book is on the various types of computer storage devices: hard disk drive, DVD, CD, removable media storage systems (such as Zip, Jaz, etc.), RAID, and others. The book also discusses interfacing storage with a computer via IDE, SCSI, USB, FireWire, and other interface protocols. A possible future of the Web storage will also be addressed as an alternative storage technology.
Special chapters will discuss selection of storage systems for your computer and will dealwith accidental data loss. An extensive glossary of PC data storage terms will complete the book. At the very end, references for further learning and a deeper understanding of the discussed subjects will be provided.
This book is not intended to be a "nuts-and-bolts" textbook. Also, by no means can it be a complete guide to a subject that is evolving continuously. Even now, as I write these words, new ideas are being born, new technologies are being invented, new companies are being started to surprise others with the newest, hottest storage product.
Instead, this book tries to serve as an essential guide to the computer storage technology of today, and even sometimes makes a short-term prediction of the future.
The main reason for not making long-term predictions? Well, they are hardly ever right. Examples? Find below three particular favorites of mine and let's then proceed to the first chapter.
Where a calculator on the ENIAC is equipped with 18,000 vacuum tubes and weighs 30 tons, computers in the future may have only 1,000 vacuum tubes and perhaps weigh 11U2 tons.
—Popular Mechanics, March 1949
There is no reason anyone would want a computer in their home.
President, Chairman, and Founder
Digital Equipment Corp., 1977
I think there's a world market for about five computers.