Fujitsu MHR2020AT Manuals

Manuals and User Guides for Fujitsu MHR2020AT. We have 1 Fujitsu MHR2020AT manual available for free PDF download: Product Manual

Fujitsu MHR2020AT Product Manual

Fujitsu MHR2020AT Product Manual (250 pages)

Fujitsu Computer Drive User Manual

Brand: Fujitsu | Category: Storage | Size: 1.53 MB

Table of Contents

Revision History
3
Operating Environment
6
Important Alert Items
9
Manual Organization
11
Table of Contents
13
CHAPTER 1 Device Overview

21
- Features
  22
- Functions and Performance
  22
- Adaptability
  22
- Interface
  23
- Device Specifications
  24
- Specifications Summary
  24
- Table 1.1 Specifications
  24
- Model and Product Number
  25
- Power Requirements
  25
- Table 1.2 Model Names and Product Numbers
  25
- Table 1.3 Current and Power Dissipation
  26
- Environmental Specifications
  27
- Figure 1.1 Current Fluctuation (Typ.) at +5V When Power Is Turned on
  27
- Table 1.4 Environmental Specifications
  27
- Acoustic Noise
  28
- Shock and Vibration
  28
- Table 1.5 Acoustic Noise Specification
  28
- Table 1.6 Shock and Vibration Specification
  28
- Reliability
  29
- Error Rate
  30
- Media Defects
  30
- Load/Unload Function
  30
CHAPTER 2 Device Configuration

33
- Device Configuration
  34
- Figure 2.1 Disk Drive Outerview
  34
- Figure 2.2 Configuration of Disk Media Heads
  35
- System Configuration
  36
- ATA Interface
  36
- Drive Connection
  36
- Drives Connection
  36
- Figure 2.3 1 Drive System Configuration
  36
- Figure 2.4 2 Drives Configuration
  36
CHAPTER 3 Installation Conditions

39
CHAPTER 4 Theory of Device Operation

53
- Outline
  54
- Subassemblies
  54
  - Disk
    54
  - Head
    54
- Spindle
  55
- Actuator
  55
- Air Filter
  55
- Figure 4.1 Head Structure
  55
- Circuit Configuration
  56
- Figure 4.2 Power Supply Configuration
  57
- Figure 4.3 Circuit Configuration
  58
- Power-On Sequence
  59
- Self-Calibration
  60
- Self-Calibration Contents
  60
- Figure 4.4 Power-On Operation Sequence
  60
- Execution Timing of Self-Calibration
  61
- Command Processing During Self-Calibration
  62
- Read/Write Circuit
  62
- Read/Write Preamplifier (HDIC)
  62
- Write Circuit
  62
- Figure 4.5 Read/Write Circuit Block Diagram
  63
- Read Circuit
  64
- Figure 4.6 Frequency Characteristic of Programmable Filter
  64
- Digital PLL Circuit
  65
- Servo Control
  66
- Figure 4.7 Block Diagram of Servo Control Circuit
  66
- Data-Surface Servo Format
  69
- Figure 4.8 Physical Sector Servo Configuration on Disk Surface
  70
- Figure 4.9 Servo Frame Format
  71
- Actuator Motor Control
  72
- Spindle Motor Control
  73
CHAPTER 5 Interface

75
CHAPTER 6 Operations

217
- Device Response to the Reset
  218
- Response to Power-On
  218
- Response to Hardware Reset
  219
  - Figure 6.1 Response to Power-On
    219
  - Figure 6.2 Response to Hardware Reset
    220
- Response to Software Reset
  221
- Figure 6.3 Response to Software Reset
  221
- Response to Diagnostic Command
  222
- Figure 6.4 Response to Diagnostic Command
  222
- Power Save
  223
- Power Save Mode
  223
- Power Commands
  223
- Defect Processing
  225
- Spare Area
  225
- Alternating Processing for Defective Sectors
  225
  - Figure 6.5 Sector Slip Processing
    226
  - Figure 6.6 Alternate Cylinder Assignment Processing
    227
- Read-Ahead Cache
  228
- Data Buffer Structure
  228
- Caching Operation
  228
- Figure 6.7 Data Buffer Structure
  228
- Using the Read Segment Buffer
  230
- Miss-Hit (no Hit
  230
- Sequential Reading
  231
- Full Hit
  233
- Partial Hit
  234
- Write Cache
  235
- Caching Operation
  235
Acronyms and Abbreviations

241

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