Fujitsu MHV2120AT User Manual Page 35
- Page / 280
- Table of contents
- BOOKMARKS
Rated. / 5. Based on customer reviews
1.8 Error Rate
C141-E218 1-11
1.8 Error Rate
Known defects, for which alternative blocks can be assigned, are not included in
the error rate count below. It is assumed that the data blocks to be accessed are
evenly distributed on the disk media.
(1) Unrecoverable read error
Read errors that cannot be recovered by maximum read retries of drive without
user’s retry and ECC corrections shall occur no more than 10 times when reading
data of 10
14
bits. Read retries are executed according to the disk drive’s error
recovery procedure, and include read retries accompanying head offset
operations.
(2) Positioning error
Positioning (seek) errors that can be recovered by one retry shall occur no more
than 10 times in 10
7
seek operations.
1.9 Media Defects
Defective sectors are replaced with alternates when the disk drive is formatted
prior to shipment from the factory (low level format). Thus, the hosts see a
defect-free device.
Alternate sectors are automatically accessed by the disk drive. The user need not
be concerned with access to alternate sectors.
1.10 Load/Unload Function
The Load/Unload function is a mechanism that loads the head on the disk and
unloads the head from the disk.
The product supports a minimum of 600,000 Load/Unload cycles.
Unload is a normal head unloading operation and the commands listed below are
executed.
• Hard Reset
• STANDBY
• STANDBY IMMEDIATE
• SLEEP
• IDLE
- C141-E218-01EN 1
- FOR SAFE OPERATION 2
- Revision History 3
- Preface 5
- Operating Environment 6
- Conventions 6
- Attention 7
- Liability Exception 7
- Important Alert Items 9
- Manual Organization 11
- Contents 13
- Illustrations 20
- CHAPTER 1 Device Overview 25
- 1.1 Features 26
- 1.1.3 Interface 27
- 1.2 Device Specifications 28
- 1.3 Power Requirements 30
- 1.5 Acoustic Noise 33
- 1.6 Shock and Vibration 33
- 1.7 Reliability 34
- 1.8 Error Rate 35
- 1.9 Media Defects 35
- 1.10 Load/Unload Function 35
- 2.1 Device Configuration 40
- 2.2 System Configuration 41
- 2.2.3 2 drives connection 42
- 3.1 Dimensions 44
- 3.2 Mounting 45
- 3.3 Cable Connections 51
- 3.3.3 Device connection 52
- 3.4 Jumper Settings 53
- 3.4.4 CSEL setting 55
- 4.1 Outline 58
- 4.2 Subassemblies 58
- 4.3 Circuit Configuration 59
- MCU & HDC & RDC 60
- 3.3V 1.2V 60
- C141-E218 4-5 61
- 4.4 Power-on Sequence 62
- 4.5 Self-calibration 63
- 4.6 Read/write Circuit 65
- 4.6.3 Read circuit 66
- 4.6.4 Digital PLL circuit 67
- 4.7 Servo Control 68
- 4.7.3 Servo frame format 73
- 4.7.5 Spindle motor control 75
- CHAPTER 5 Interface 77
- 5.1 Physical Interface 78
- 5.2 Logical Interface 82
- 5.2.1 I/O registers 83
- 5.3 Host Commands 90
- 5.3.2 Command descriptions 94
- • Default function 110
- • Attribute ID 123
- • Status Flag 124
- • Current attribute value 124
- • Raw attribute value 124
- • Error logging capability 127
- • Check sum 127
- • SMART error logging 128
- • Command data structure 130
- • Error data structure 130
- • Status 130
- • SMART self-test 131
- • Self-test number 131
- • Self-test index 131
- Initial 132
- • Feature flags 133
- (CM) 1 1 1 0 0 1 0 0 149
- • SET MAX ADDRESS 180
- Password information 182
- • SET MAX SET PASSWORD 184
- • SET MAX LOCK 184
- • SET MAX UNLOCK 184
- • Description 186
- Sector offset (7-0) 190
- 5.3.3 Error posting 203
- Interface 204
- 5-128 C141-E218 204
- 5.4 Command Protocol 205
- 5.4.4 Other commands 211
- 5.5 Ultra DMA Feature Set 213
- 5.5.2 Phases of operation 214
- 5.5.5 Ultra DMA CRC rules 223
- 5.6 Timing 225
- DIOR-/DIOW 226
- HSTROBE 239
- (host) 239
- DA0, DA1, DA2 239
- CS0-, CS1 239
- 5.6.4 Power-on and reset 240
- CHAPTER 6 Operations 241
- 6.1.1 Response to power-on 242
- 6.2 Power Save 247
- 6.3 Defect Processing 249
- Sector (physical) 250
- Cylinder 0 250
- (Not used) 250
- 6.4 Read-ahead Cache 252
- 6.4.2 Caching operation 253
- 256
- 6.5 Write Cache 259
- Glossary 263
- Acronyms and Abbreviations 267
- Comment Form 275
- C141-E218-01EN 277
Related products and manuals for Hardware Fujitsu MHV2120AT
Hardware Fujitsu SFP MSA User Manual
(1 pages)
(1 pages)
Hardware Fujitsu MHT2060BH User Manual
(264 pages)
(264 pages)
Hardware Fujitsu MB91460 SERIES FR60 User Manual
(103 pages)
(103 pages)
Hardware Fujitsu fi-5000N User Manual
(29 pages)
(29 pages)
Hardware Fujitsu Mainboard D1931 User Manual
(49 pages)
(49 pages)
Hardware Fujitsu C141-E280 User Manual
(12 pages)
(12 pages)
Hardware Fujitsu MPD3XXXAT User Manual
(191 pages)
(191 pages)
Hardware Fujitsu MB15F83UL User Manual
(6 pages)
(6 pages)
Hardware Fujitsu MBA3073NP User Manual
(138 pages)
(138 pages)
Hardware Fujitsu FMW43VA1 User Manual
(4 pages)
(4 pages)
Hardware Fujitsu MAP3735FC User Manual
(114 pages)
(114 pages)
Hardware Fujitsu MAF3364FC User Manual
(61 pages)
(61 pages)
Hardware Fujitsu PG-LND101 User Manual
(80 pages)
(80 pages)
Hardware Fujitsu XENPAK MSA User Manual
(1 pages)
(1 pages)
© 2020, manymanuals.com. All rights reserved. | 0.765 s |
Manymanuals.com
Manymanuals.de
Manymanuals.fr
Manymanuals.it
Manymanuals.pl
Manymanuals.cz
Manymanuals.es
Manymanuals-pt.com
Comments to this Manuals