Hard disk secrets

Front Cover
IDG Books, Apr 1, 1993 - Computers - 562 pages
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The definitive insider's toolkit for maximizing hard disk performance. Includes one 5.25 disk of FREE hard disk tune-up software. Learn how hard disks really work, why they die, and how you can prolong their life. Explanations of all popular disk standards, including MFM, RLL, IDE, ESDI, SCSI, and more.

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Contents

The Hard Disk Companion
1
Chapter 1
4
A worthwhile thought to hang over your computer
20
Chapter 2
31
Magnetic Storage of Information
33
Tracks and sectors
38
A magnetized hard disk platter
45
Dataencoding strategies
54
An analogy to how information is stored on a hard disk
229
Preparing a Hard Disk to Store Information
237
Chapter 10
259
A 12bit file allocation table FAT
266
A couple of ways to view a directory tree
273
The Rest of What FORMAT Does
276
Chapter 11
287
How head drift can cause drive malfunction
294

The orchard model of ECC
63
Chapter 3
69
Head skewing
79
Popular PC hard disk interfaces
95
Chapter 4
101
A loudspeaker is a motor
107
An external servo headpositioning system
113
A dedicated platter servo system
119
A wedge servo
123
An inductive readwrite head
129
Perpendicular vertical recording
137
Readwrite headswitching circuits
145
Chapter 5
151
A Different Dimension of Difference
160
The Correct Value for Your CONFIG SYS BUFFERS Statement
166
Chapter 6
169
The Relationship Between Hard Disks and DOS
171
Layers of programs in a PC
177
Steps in processing a file request part 4 of 4
183
A TSR program hooks an interrupt part 2 of 2
189
DriveType Determination
194
An installable block device driver
205
Bumping Up Against and Breaking Barriers
207
Evading the Physical Limits
213
Head and sector translation example
216
Hooking an interrupt to intercept error messages
222
Preparing a Hard Disk to Store Information
227
An error to avoid when mounting a hard drive
307
That Laundry List of Failure Modes Is Fine but Id Rather
311
The SpinRite Companion
325
Chapter 12
327
A Better Way
334
The problem with reinterleaving without dataintegrity testing
336
Preventing the Slow Death of Your Hard Disk
343
What the Factory Tells You
349
A sample of the table of bytes
350
How the Encoding Technology Affects the Choice
356
The SpinRite data test patterns for MFM drives
358
Which Way Is Best?
362
Details of SpinRites Operation
365
When SpinRite detects a bad sector
384
SpinRites Evolution
389
Advanced Users Guide to SpinRite
407
The AUTOEXEC BAT file for the SpinRite clean boot diskette
413
Using DOSs CHKDSK First
414
Batch Mode Operation
424
Running SpinRite from a clean boot diskette
427
The two principle hard disk headparking strategies
435
Resident park utilities
441
Appendixes
445
The Hard Disk SECRETS Disk
449
Index
529
Installation Instructions for the Hard Disk SECRETS Disk
562
Copyright

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