C141-E050-02EN
MHC2032AT, MHC2040AT
MHD2032AT, MHD2021AT
DISK DRIVES
PRODUCT MANUAL
FOR SAFE OPERATION
Handling of This Manual
This manual contains important information for using this product. Read thoroughly before using the product. Use this product only after thoroughly reading and understanding especially the section “Important Alert Items” in this manual. Keep this manual handy, and keep it carefully.
FUJITSU makes every effort to prevent users and bystanders from being injured or from suffering damage to their property. Use the product according to this manual.
IMPORTANT NOTE TO USERS
READ THE ENTIRE MANUAL CAREFULLY BEFORE USING THIS PRODUCT. INCORRECT USE OF THE PRODUCT MAY RESULT IN INJURY OR DAMAGE TO USERS, BYSTANDERS OR PROPERTY.
While FUJITSU has sought to ensure the accuracy of all information in this manual, FUJITSU assumes no liability to any party for any damage caused by any error or omission contained in this manual, its updates or supplements, whether such errors or omissions result from negligence, accident, or any other cause. In addition, FUJITSU assumes no liability with respect to the application or use of any product or system in accordance with the descriptions or instructions contained herein; including any liability for incidental or consequential damages arising therefrom. FUJITSU DISCLAIMS ALL WARRANTIES REGARDING THE INFORMATION CONTAINED HEREIN, WHETHER EXPRESSED, IMPLIED, OR STATUTORY.
FUJITSU reserves the right to make changes to any products described herein without further notice and without obligation.
The contents of this manual may be revised without prior notice.
The contents of this manual shall not be disclosed in any way or reproduced in any media without the express written permission of Fujitsu Limited.
All Rights Reserved, Copyright © FUJITSU LIMITED 1998
C141-E050-02EN
Revision History
(1/1)
Edition |
Date |
Revised section (*1) |
Details |
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01 |
1998-02-15 |
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02 |
1998-0- |
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*1 Section(s) with asterisk (*) refer to the previous edition when those were deleted.
C141-E050-02EN
This manual describes the MHC Series and MHD Series, 2.5-inch hard disk drives. These drives have a built-in controller that is compatible with the ATA interface.
This manual describes the specifications and functions of the drives and explains in detail how to incorporate the drives into user systems. This manual assumes that the reader has a basic knowledge of hard disk drives and their implementations in computer systems.
This manual consists of seven chapters and sections explaining the special terminology and abbreviations used in this manual:
Overview of Manual
CHAPTER 1 Drive Overview
This chapter gives an overview of the MHC Series and MHD Series and describes their features.
CHAPTER 2 Drive Configuration
This chapter describes the internal configurations of the MHC Series and MHD Series and the configuration of the systems in which they operate.
CHAPTER 3 Conditions Installation
This chapter describes the external dimensions, installation conditions, and switch settings of the MHC Series and MHD Series.
CHAPTER 4 Theory of Drive Operation
This chapter describes the operation theory of the MHC Series and MHD Series.
CHAPTER 5 Interface
This chapter describes the interface specifications of the MHC Series and MHD Series.
CHAPTER 6 Operations
This chapter describes the operations of the MHC Series and MHD Series.
Terminology
This section explains the special terminology used in this manual.
Abbreviation
This section gives the meanings of the definitions used in this manual.
C141-E050-02EN |
i |
Preface
Conventions for Alert Messages
This manual uses the following conventions to show the alert messages. An alert message consists of an alert signal and alert statements. The alert signal consists of an alert symbol and a signal word or just a signal word.
The following are the alert signals and their meanings:
This indicates a hazarous situation could result in minor or moderate personal injury if the user does not perform the procedure correctly. This alert signal also indicates that damages to the product or other property, may occur if the user does not perform the procedure correctly.
This indicates information that could help the user use the product more efficiently.
In the text, the alert signal is centered, followed below by the indented message. A wider line space precedes and follows the alert message to show where the alert message begins and ends. The following is an example:
(Example)
Data corruption: Avoid mounting the disk drive near strong magnetic sources such as loud speakers. Ensure that the disk drive is not affected by external magnetic fields.
The main alert messages in the text are also listed in the “Important Alert Items.”
Operating Environment
This product is designed to be used in offices or computer rooms.
For details regarding the operating environment of use, refer to the (Cnnn-Xnnn) and the
(Cnnn-Xnnn).
Attention
Please forward any comments you may have regarding this manual.
To make this manual easier for users to understand, opinions from readers are needed. Please write your opinions or requests on the Comment at the back of this manual and forward it to the address described in the sheet.
ii |
C141-E050-02EN |
Preface
Liability Exception
“Disk drive defects” refers to defects that involve adjustment, repair, or replacement.
Fujitsu is not liable for any other disk drive defects, such as those caused by user misoperation or mishandling, inappropriate operating environments, defects in the power supply or cable, problems of the host system, or other causes outside the disk drive.
C141-E050-02EN |
iii |
Important Alert Messages
The important alert messages in this manual are as follows:
A hazardous situation could result in minor or moderate personal injury if the user does not perform the procedure correctly. Also, damage to the predate or other property, may occur if the user does not perform the procedure correctly.
Task |
Alert message |
Page |
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Normal Operation |
Data corruption: Avoid mounting the disk near strong |
3-6 |
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magnetic soures such as loud speakers. Ensure that the disk |
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drive is not affected by extrnal magnetic fields. |
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C141-E050-02EN |
v |
CHAPTER 1 |
Device Overview........................................................................ |
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1-1 |
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1.1 |
Features |
1-2 |
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1.1.1 |
Functions and performance |
1-2 |
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1.1.2 |
Adaptability |
1-2 |
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1.1.3 |
Interface |
1-3 |
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1.2 |
Device Specifications |
1-4 |
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1.2.1 |
Specifications summary 1-4 |
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1.2.2 |
Model and product number |
1-6 |
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1.3 |
Power Requirements |
1-6 |
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1.4 |
Environmental Specifications |
1-8 |
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1.5 |
Acoustic Noise |
1-8 |
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1.6 |
Shock and Vibration |
1-9 |
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1.7 |
Reliability |
1-9 |
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1.8 |
Error Rate |
1-10 |
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1.9 |
Media Defects |
1-10 |
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CHAPTER 2 |
Device Configuration................................................................ |
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2-1 |
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2.1 |
Device Configuration |
2-2 |
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2.2 |
System Configuration |
2-4 |
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2.2.1 |
ATA interface |
2-4 |
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2.2.2 |
1 drive connection |
2-4 |
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2.2.3 |
2 drives connection |
2-5 |
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C141-E050-02EN |
vii |
Contents
CHAPTER 3 Installation Conditions.............................................................. |
3-1 |
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3.1 |
Dimensions |
3-2 |
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3.2 |
Mounting |
3-4 |
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3.3 |
Cable Connections |
3-8 |
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3.3.1 |
Device connector |
3-8 |
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3.3.2 |
Cable connector specifications |
3-9 |
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3.3.3 |
Device connection |
3-9 |
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3.3.4 |
Power supply connector (CN1) |
3-10 |
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3.4 |
Jumper Settings |
3-10 |
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3.4.1 |
Location of setting jumpers 3-10 |
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3.4.2 |
Factory default setting 3-11 |
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3.4.3 |
Master drive-slave drive setting |
3-11 |
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3.4.4 |
CSEL setting |
3-12 |
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CHAPTER 4 Theory of Device Operation...................................................... |
4-1 |
4.1Outline 4-2
4.2Subassemblies 4-2
4.2.1Disk 4-2
4.2.2Head 4-2
4.2.3Spindle 4-3
4.2.4Actuator 4-3
4.2.5 Air filter 4-3
4.3 Circuit Configuration 4-4
4.4 Power-on Sequence 4-6
4.5Self-calibration 4-7
4.5.1 |
Self-calibration contents 4-7 |
4.5.2 |
Execution timing of self-calibration 4-8 |
4.5.3 |
Command processing during self-calibration 4-9 |
4.6 |
Read/write Circuit 4-9 |
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C141-E050-02EN |
Contents
4.6.1 |
Read/write preamplifier (PreAMP) |
4-9 |
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4.6.2 |
Write circuit |
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4-10 |
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4.6.3 |
Read circuit |
4-12 |
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4.6.4 |
Digital PLL circuit |
4-13 |
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4.7 |
Servo Control |
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4-14 |
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4.7.1 |
Servo control circuit |
4-14 |
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4.7.2 |
Data-surface servo format |
4-18 |
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4.7.3 |
Servo frame format 4-18 |
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4.7.4 |
Actuator motor control |
4-19 |
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4.7.5 |
Spindle motor control |
4-20 |
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CHAPTER 5 Interface ..................................................................................... 5-1 |
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5.1 |
Physical Interface |
5-2 |
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5.1.1 |
Interface signals |
5-2 |
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5.1.2 |
Signal assignment on the connector |
5-3 |
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5.2 |
Logical Interface |
5-6 |
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5.2.1 |
I/O registers |
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5-7 |
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5.2.2 |
Command block registers |
5-8 |
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5.2.3 |
Control block registers |
5-13 |
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5.3 |
Host Commands |
5-13 |
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5.3.1 |
Command code and parameters |
5-14 |
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5.3.2 |
Command descriptions |
5-16 |
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5.3.3 |
Error posting |
5-68 |
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5.4 |
Command Protocol |
5-70 |
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5.4.1 |
Data transferring commands from device to host |
5-70 |
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5.4.2 |
Data transferring commands from host to device |
5-72 |
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5.4.3 |
Commands without data transfer |
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5-74 |
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5.4.4 |
Other commands |
5-75 |
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5.4.5 |
DMA data transfer commands |
5-75 |
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5.5 |
Ultra DMA Feature Set |
5-77 |
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5.5.1 |
Overview |
5-77 |
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C141-E050-02EN |
ix |
Contents
5.5.2 |
Phases of operation 5-78 |
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5.5.2.1 |
Ultra DMA burst initiation phase 5-78 |
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5.5.2.2 |
Data transfer phase |
5-79 |
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5.5.2.3 |
Ultra DMA burst termination phase |
5-79 |
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5.5.3 |
Ultra DMA data in commands |
5-80 |
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5.5.3.1 |
Initiating an Ultra DMA data in burst |
5-80 |
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5.5.3.2 |
The data in transfer |
5-81 |
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5.5.3.3 |
Pausing an Ultra DMA data in burst |
5-81 |
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5.5.3.4 |
Terminating an Ultra DMA data in burst |
5-82 |
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5.5.4 |
Ultra DMA data out commands |
5-85 |
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5.5.4.1 |
Initiating an Ultra DMA data out burst |
5-85 |
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5.5.4.2 |
The data out transfer |
5-85 |
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5.5.4.3 |
Pausing an Ultra DMA data out burst |
5-86 |
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5.5.4.4 |
Terminating an Ultra DMA data out burst |
5-87 |
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5.5.5 |
Ultra DMA CRC rules |
5-89 |
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5.5.6 |
Series termination required for Ultra DMA |
5-91 |
5.6Timing 5-92
5.6.1 |
PIO data transfer 5-92 |
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5.6.2 |
Single word DMA data transfer |
5-94 |
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5.6.3 |
Multiword DMA data transfer |
5-95 |
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5.6.4 |
Transfer of Ultra DMA data 5-96 |
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5.6.4.1 |
Starting of Ultra DMA data In Burst |
5-96 |
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5.6.4.2 |
Ultra DMA data burst timing requirements |
5-97 |
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5.6.4.3 |
Sustained Ultra DMA data in burst 5-99 |
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5.6.4.4 |
Host pausing an Ultra DMA data in burst |
5-100 |
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5.6.4.5 |
Device terminating an Ultra DMA data in burst |
5-101 |
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5.6.4.6 |
Host terminating an Ultra DMA data in burst |
5-102 |
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5.6.4.7 |
Initiating an Ultra DMA data out burst |
5-103 |
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5.6.4.8 |
Sustained Ultra DMA data out burst |
5-104 |
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5.6.4.9 |
Device pausing an Ultra DMA data out burst |
5-105 |
5.6.4.10 Host terminating an Ultra DMA data out burst |
5-106 |
5.6.4.11 Device terminating an Ultra DMA data in burst |
5-107 |
5.6.5 Power-on and reset 5-108 |
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x |
C141-E050-02EN |
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Contents |
CHAPTER 6 Operations ................................................................................. |
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6-1 |
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6.1 |
Device Response to the Reset |
6-2 |
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6.1.1 |
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Response to power-on |
6-2 |
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6.1.2 |
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Response to hardware reset |
6-4 |
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6.1.3 |
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Response to software reset |
6-5 |
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6.1.4 |
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Response to diagnostic command 6-6 |
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6.2 |
Address Translation |
6-7 |
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6.2.1 |
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Default parameters |
6-7 |
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6.2.2 |
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Logical address 6-8 |
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6.3 |
Power Save |
6-9 |
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6.3.1 |
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Power save mode |
6-9 |
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6.3.2 |
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Power commands |
6-11 |
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6.4 |
Defect Management |
6-11 |
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6.4.1 |
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Spare area |
6-12 |
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6.4.2 |
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Alternating defective sectors |
6-12 |
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6.5 |
Read-Ahead Cache |
6-14 |
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6.5.1 |
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Data buffer configuration |
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6-14 |
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6.5.2 |
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Caching operation |
6-14 |
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6.5.3 |
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Usage of read segment |
6-16 |
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6.5.3.1 |
Mis-hit (no hit) |
6-16 |
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6.5.3.2 |
Sequential read |
6-17 |
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6.5.3.3 Full hit (hit all) |
6-20 |
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6.5.3.4 |
Partially hit |
6-21 |
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6.6 |
Write Cache |
6-22 |
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Glossary ................................................................................................. |
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GL-1 |
Acronyms and Abbreviations ........................................................................ |
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AB-1 |
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Index ................................................................................................... |
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IN-1 |
C141-E050-02EN |
xi |
Contents
Figures
Figure 1.1 |
Current fluctuation (Typ.) at +5V when power is turned on |
1-6 |
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Figure 2.1 |
Disk drives outerview (The MHC Series and MHD Series) |
2-2 |
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Figure 2.2 |
Configuration of disk media heads |
2-3 |
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Figure 2.3 |
1 drive system configuration |
2-4 |
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Figure 2.4 |
2 drives configuration |
2-5 |
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Figure 3.1 |
Dimensions (MHC/MHD series) |
3-2 |
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Figure 3.2 |
Orientation (Sample: MHC2040AT) |
3-4 |
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Figure 3.3 |
Mounting frame structure 3-5 |
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Figure 3.4 |
Surface temperature measurement points (Sample: MHC2040AT) |
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3-6 |
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Figure 3.5 |
Service area (Sample: MHC2040AT) |
3-7 |
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Figure 3.6 |
Connector locations (Sample: MHC2040AT) |
3-8 |
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Figure 3.7 |
Cable connections 3-9 |
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Figure 3.8 |
Power supply connector pins (CN1) |
3-10 |
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Figure 3.9 |
Jumper location |
3-10 |
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Figure 3.10 |
Factory default setting |
3-11 |
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Figure 3.11 |
Jumper setting of master or slave device 3-11 |
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Figure 3.12 |
CSEL setting |
3-12 |
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Figure 3.13 |
Example (1) of Cable Select |
3-12 |
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Figure 3.14 |
Example (2) of Cable Select |
3-13 |
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Figure 4.1 |
Head structure |
4-3 |
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Figure 4.2 |
Circuit Configuration |
4-5 |
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Figure 4.3 |
Power-on operation sequence |
4-7 |
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Figure 4.4 |
Read/write circuit block diagram |
4-11 |
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Figure 4.5 |
Frequency characteristic of programmable filter |
4-12 |
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Figure 4.6 |
Block diagram of servo control circuit |
4-14 |
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Figure 4.7 |
Physical sector servo configuration on disk surface |
4-16 |
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Figure 4.8 |
Servo frame format |
4-18 |
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Figure 5.1 |
Interface signals |
5-2 |
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Figure 5.2 |
Execution example of READ MULTIPLE command |
5-20 |
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Figure 5.3 |
Read Sector(s) command protocol |
5-71 |
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Figure 5.4 |
Protocol for command abort |
5-72 |
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xii |
C141-E050-02EN |
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Contents |
Figure 5.5 |
WRITE SECTOR(S) command protocol |
5-73 |
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Figure 5.6 |
Protocol for the command execution without data transfer 5- |
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75 |
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Figure 5.7 |
Normal DMA data transfer |
5-76 |
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Figure 5.8 |
An example of generation of parallel CRC |
5-90 |
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Figure 5.9 |
Ultra DMA termination with pull-up or pull-down |
5-91 |
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Figure 5.10 |
Data transfer timing 5-93 |
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Figure 5.11 |
Single word DMA data transfer timing (mode 2) |
5-94 |
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Figure 5.12 |
Multiword DMA data transfer timing (mode 2) |
5-95 |
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Figure 5.13 |
Starting of Ultra DMA data In Burst transfer |
5-96 |
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Figure 5.14 |
Sustained Ultra DMA data in burst |
5-99 |
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Figure 5.15 |
Host pausing an Ultra DMA data in burst |
5-100 |
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Figure 5.16 |
Device terminating an Ultra DMA data in burst |
5-101 |
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Figure 5.17 |
Host terminating an Ultra DMA data in burst |
5-102 |
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Figure 5.18 |
Initiating an Ultra DMA data out burst 5-103 |
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Figure 5.19 |
Sustained Ultra DMA data out burst |
5-104 |
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Figure 5.20 |
Device pausing an Ultra DMA data out burst |
5-105 |
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Figure 5.21 |
Host terminating an Ultra DMA data out burst |
5-106 |
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Figure 5.22 |
Device terminating an Ultra DMA data out burst |
5-107 |
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Figure 5.23 |
Power on Reset Timing |
5-108 |
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Figure 6.1 |
Response to power-on |
6-3 |
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Figure 6.2 |
Response to hardware reset |
6-4 |
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Figure 6.3 |
Response to software reset |
6-5 |
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Figure 6.4 |
Response to diagnostic command |
6-6 |
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Figure 6.5 |
Address translation (example in CHS mode) |
6-8 |
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Figure 6.6 |
Address translation (example in LBA mode) |
6-9 |
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Figure 6.7 |
Sector slip processing |
6-12 |
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Figure 6.8 |
Alternate cylinder assignment |
6-13 |
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Figure 6.9 |
Data buffer configuration 6-14 |
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Tables
Table 1.1 |
Specifications (MHC2032AT/MHC2040AT) |
1-4 |
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Table 1.2 |
Specifications (MHD2021AT/MHD2032AT) |
1-5 |
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Table 1.3 |
Model names and product numbers |
1-6 |
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Table 1.4 |
Current and power dissipation |
1-7 |
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Table 1.5 |
Environmental specifications |
1-8 |
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Table 1.6 |
Acoustic noise specification |
1-8 |
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Table 1.7 |
Shock and vibration specification |
1-9 |
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C141-E050-02EN |
xiii |
Contents
Table 3.1 |
Surface temperature measurement points and standard values |
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3-6 |
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Table 3.2 |
Cable connector specifications |
3-9 |
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Table 4.1 |
Self-calibration execution timechart |
4-9 |
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Table 4.2 |
Write precompensation algorithm |
4-10 |
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Table 5.1 |
Signal assignment on the interface connector |
5-3 |
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Table 5.2 |
I/O registers 5-7 |
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|
Table 5.3 |
Command code and parameters |
5-14 |
|
|
|
||
Table 5.4 |
Information to be read by IDENTIFY DEVICE command |
5- |
|||||
|
32 |
|
|
|
|
|
|
Table 5.5 |
Features register values and settable modes |
5-38 |
|
|
|||
Table 5.6 |
Diagnostic code |
5-43 |
|
|
|
|
|
Table 5.7 |
Features Register values (subcommands) and functions |
5-54 |
|||||
Table 5.8 |
Format of device attribute value data |
5-56 |
|
|
|
||
Table 5.9 |
Format of insurance failure threshold value data |
5-57 |
|
||||
Table 5.10 |
Contents of security password |
5-61 |
|
|
|
||
Table 5.11 |
Contents of SECURITY SET PASSWORD data |
5-65 |
|
||||
Table 5.12 |
Relationship between combination of Identifier and Security |
||||||
|
level, and operation of the lock function 5-66 |
|
|
||||
Table 5.13 |
Command code and parameters |
5-68 |
|
|
|
||
Table 5.14 |
Parallel generation equation of CRC polynomial |
5-90 |
|
||||
Table 5.15 |
Recommended series termination for Ultra DMA |
5-91 |
|
||||
Table 5.16 |
Ultra DMA data burst timing requirements |
5-97 |
|
|
|||
Table 6.1 |
Default parameters |
6-7 |
|
|
|
|
|
xiv |
C141-E050-02EN |
1.1Features
1.2Device Specifications
1.3Power Requirements
1.4Environmental Specifications
1.5Acoustic Noise
1.6Shock and Vibration
1.7Reliability
1.8Error Rate
1.9Media Defects
Overview and features are described in this chapter, and specifications and power requirement are described.
The MHC Series and MHD Series are 2.5-inch hard disk drives with built-in disk controllers. These disk drives use the AT-bus hard disk interface protocol and are compact and reliable.
C141-E050-02EN |
1-1 |
Device Overview
The fillowing features of the MHC Series and MHD Series are described.
(1) Compact
The MHC2032AT and MHC2040AT have 2 or 3 disks of 65 mm (2.5 inches) diameter, and its height is 12.5 mm (0.492 inch). The MHD2032AT and MHD2021AT have 2 disks of 65 mm (2.5 inches) diameter, and its height is 9.5
mm(0.374 inch).
(2)Large capacity
The disk drive can record up to 1,083 MB (formatted) on one disk using the (16/17) EPR4ML recording method and 12 recording zone technology. The MHC Series and MHD Series have a formatted capacity of 3.25 GB (MHC2032AT, MHD2032AT), 4.09 GB (MHC2040AT) and 2.16 GB (MHD2021AT) respectively.
(3) High-speed Transfer rate
The disk drives (the MHC Series and MHD Series) have an internal data rate up to 10.6 MB/s (MHC/D2032AT). The disk drive supports an external data rate up to
33.3MB/s (U-DMA mode 2).
(4)Average positioning time
Use of a rotary voice coil motor in the head positioning mechanism greatly increases the positioning speed. The average positioning time is 13 ms (at read).
(1) Power save mode
The power save mode feature for idle operation, stand by and sleep modes makes The disk drives (the MHC Series and MHD Series) ideal for applications where power consumption is a factor.
(2) Wide temperature range
The disk drives (the MHC Series and MHD Series) can be used over a wide temperature range (5°C to 55°C).
(3) Low noise and vibration
In Ready status, the noise of the disk drives (the MHC Series and MHD Series) is only about 30 dBA (measured at 1 m apart from the drive under the idle mode).
1-2 |
C141-E050-02EN |
1.1 Features
(1) Connection to interface
With the built-in ATA interface controller, the disk drives (the MHC Series and MHD Series) can be connected to an ATA interface of a personal computer.
(2) 512-KB data buffer
The disk drives (the MHC Series and MHD Series) uses a 512-KB data buffer to transfer data between the host and the disk media.
In combination with the read-ahead cache system described in item (3) and the write cache described in item (7), the buffer contributes to efficient I/O processing.
(3) Read-ahead cache system
After the execution of a disk read command, the disk drive automatically reads the subsequent data block and writes it to the data buffer (read ahead operation). This cache system enables fast data access. The next disk read command would normally cause another disk access. But, if the read ahead data corresponds to the data requested by the next read command, the data in the buffer can be transferred instead.
(4) Master/slave
The disk drives (the MHC Series and MHD Series) can be connected to ATA interface as daisy chain configuration. Drive 0 is a master device, drive 1 is a slave device.
(5) Error correction and retry by ECC
If a recoverable error occurs, the disk drives (the MHC Series and MHD Series) themselves attempt error recovery. The ECC has improved buffer error correction for correctable data errors.
(6) Self-diagnosis
The disk drives (the MHC Series and MHD Series) have a diagnostic function to check operation of the controller and disk drives. Executing the diagnostic command invokes self-diagnosis.
(7) Write cache
When the disk drives (the MHC Series and MHD Series) receive a write command, the disk drives post the command completion at completion of transferring data to the data buffer completion of writing to the disk media. This feature reduces the access time at writing.
C141-E050-02EN |
1-3 |
Device Overview
Table 1.1 shows the specfications of the disk drives (MHC2032AT/MHC2040AT).
|
Table 1.1 |
Specifications (MHC2032AT/MHC2040AT) |
|||||
|
|
|
|
|
|
|
|
|
|
|
MHC2032AT |
|
|
MHC2040AT |
|
|
|
|
|
|
|
|
|
Format Capacity (*1) |
|
3.25 GB |
|
|
|
4.09 GB |
|
|
|
|
|
|
|
|
|
Number of Heads |
|
4 |
|
|
|
6 |
|
|
|
|
|
|
|
|
|
Number of Cylinders (User) |
|
7,322 |
|
|
|
7,230 |
|
|
|
|
|
|
|
|
|
Bytes per Sector |
|
|
|
512 |
|
||
|
|
|
|
|
|||
Recording Method |
|
|
(16/17) EPR4ML |
|
|||
|
|
|
|
|
|||
Track Density |
|
|
11,960 TPI |
|
|||
|
|
|
|
|
|||
Bit Density |
|
|
178,000 BPI |
|
|||
|
|
|
|
|
|||
Rotational Speed |
|
|
4,000 rpm ± 1% |
|
|||
|
|
|
|
|
|
||
Average Latency |
|
|
|
7.5 ms |
|
||
|
|
|
|
|
|
||
Positioning time (read and seek) |
|
|
|
|
|
||
• Minimum (Track to Track) |
|
|
2.5 ms (typ.) |
|
|||
• |
Average |
|
|
Read: |
13 ms (typ.) |
||
• |
Maximum (Full) |
|
|
23 ms (typ.) |
|
||
|
|
|
|
|
|
|
|
Start/Stop time |
|
|
|
|
|
|
|
• Start (0 rpm to Drive Read) |
|
Typ.: |
5 sec, |
|
Max.: |
10 sec |
|
• Stop (at Power Down) |
|
Typ.: |
5 sec, |
|
Max.: |
15 sec |
|
|
|
|
(when the command is stopped) (when the power is off) |
||||
|
|
|
|
||||
Interface |
|
ATA-3 (Max. Cable length: |
0.46 m) |
||||
|
|
|
|
|
|||
Data Transfer Rate |
|
6.3 to 10.6 MB/s |
|
5.5 to 9.8 MB/s |
|||
• |
To/From Media |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
• |
To/From Host |
|
|
33.3 MB/s Max. |
|
||
|
|
|
|
(U-DMA mode 2) |
|
||
|
|
|
|
|
|||
Data Buffer Size |
|
|
512 KB |
|
|||
|
|
|
|||||
Physical Dimensions |
|
12.5 mm × 100.0 mm × 70.0 mm |
|||||
(Height × Width × Depth) |
|
(0.49" × 3.94" × 2.75") |
|||||
|
|
|
|
|
|
||
Weight |
|
|
|
145 g |
|
||
|
|
|
|
|
|
|
|
1-4 |
C141-E050-02EN |
1.2 Device Specifications
Table 1.2 shows the specfications of the disk drives (MHD2021AT/MHD2032AT).
|
Table 1.2 |
Specifications (MHD2021AT/MHD2032AT) |
|||||
|
|
|
|
|
|
|
|
|
|
|
MHD2021AT |
|
|
MHD2032AT |
|
|
|
|
|
|
|
|
|
Format Capacity (*1) |
|
2.16 GB |
|
|
|
3.25 GB |
|
|
|
|
|
|
|
|
|
Number of Heads |
|
3 |
|
|
|
4 |
|
|
|
|
|
|
|
|
|
Number of Cylinders (User) |
|
7,290 |
|
|
|
7,322 |
|
|
|
|
|
|
|
|
|
Bytes per Sector |
|
|
|
512 |
|
||
|
|
|
|
|
|||
Recording Method |
|
|
(16/17) EPR4ML |
|
|||
|
|
|
|
|
|||
Track Density |
|
|
11,960 TPI |
|
|||
|
|
|
|
|
|
|
|
Bit Density |
|
191 Kbpi |
|
|
|
217 Kbpi |
|
|
|
|
|
|
|
||
Rotational Speed |
|
|
4,000 rpm ± 1% |
|
|||
|
|
|
|
|
|
||
Average Latency |
|
|
|
7.5 ms |
|
||
|
|
|
|
|
|
||
Positioning time (read and seek) |
|
|
|
|
|
||
• Minimum (Track to Track) |
|
|
2.5 ms (typ.) |
|
|||
• |
Average |
|
|
Read: |
13 ms (typ.) |
||
• |
Maximum (Full) |
|
|
23 ms (typ.) |
|
||
|
|
|
|
|
|
|
|
Start/Stop time |
|
|
|
|
|
|
|
• Start (0 rpm to Drive Read) |
|
Typ.: |
5 sec, |
|
Max.: |
10 sec |
|
• Stop (at Power Down) |
|
Typ.: |
5 sec, |
|
Max.: |
15 sec |
|
|
|
|
(when the command is stopped) (when the power is off) |
||||
|
|
|
|
||||
Interface |
|
ATA-3 (Max. Cable length: |
0.46 m) |
||||
|
|
|
|
|
|||
Data Transfer Rate |
|
5.9 to 10.0 MB/s |
|
6.3 to 10.6 MB/s |
|||
• |
To/From Media |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
• |
To/From Host |
|
|
33.3 MB/s Max. |
|
||
|
|
|
|
(U-DMA mode 2) |
|
||
|
|
|
|
|
|||
Data Buffer Size |
|
|
512 KB |
|
|||
|
|
|
|||||
Physical Dimensions |
|
9.5 mm × 100.0 mm × 70.0 mm |
|||||
(Height × Width × Depth) |
|
(0.37" × 3.94" × 2.75") |
|||||
|
|
|
|
|
|
||
Weight |
|
|
|
95 g |
|
||
|
|
|
|
|
|
|
|
*1: Capacity under the LBA mode.
Under the CHS mode (normal BIOS specification), formatted capacity, number of cylinders, number of heads, and number of sectors are as follows.
C141-E050-02EN |
1-5 |
Device Overview
Model |
Formatted Capacity |
No. of Cylinder |
No. of Heads |
No. of Sectors |
|
|
|
|
|
MHC2032AT |
3,253.46 MB |
6,304 |
16 |
63 |
|
|
|
|
|
MHC2040AT |
4,099.86 MB |
7,944 |
16 |
63 |
|
|
|
|
|
MHD2021AT |
2,167.60 MB |
4,200 |
16 |
63 |
|
|
|
|
|
MHD2032AT |
3,253.46 MB |
6,304 |
16 |
63 |
|
|
|
|
|
Table 1.3 lists the model names and product numbers of the MHC Series and MHD Series.
Table 1.3 Model names and product numbers
Model Name |
Capacity |
Mounting screw |
Order No. |
|
(user area) |
|
|
|
|
|
|
MHC2032AT |
3.25 GB |
M3, depth 3 |
CA01677-B040 |
|
|
|
|
MHC2040AT |
4.09 GB |
M3, depth 3 |
CA01677-B060 |
|
|
|
|
MHD2021AT |
2.16 GB |
M3, depth 3 |
CA01678-B030 |
|
|
|
|
MHD2032AT |
3.25 GB |
M3, depth 3 |
CA01678-B040 |
|
|
|
|
(1) Input Voltage
∙ + 5 V ± 5 %
(2) Ripple
|
+5 V |
|
|
Maximum |
100 mV (peak to peak) |
|
|
Frequency |
DC to 1 MHz |
|
|
1-6 |
C141-E050-02EN |
|
|
|
|
|
1.3 Power Requirements |
||
(3) Current Requirements and Power Dissipation |
|
|
|
|
|||
|
Table 1.4 lists the current and power dissipation. |
|
|
|
|||
|
|
Table 1.4 Current and power dissipation |
|
|
|
||
|
|
|
|
|
|
|
|
|
|
Typical RMS Current |
Typical Power (*3) |
|
|||
|
|
|
|
|
|
|
|
|
|
MHC Series |
MHD Series |
MHC Series |
|
MHD Series |
|
|
|
|
|
|
|
|
|
|
Spin up (*1) |
0.9 A |
0.9 A |
4.5 W |
|
4.5 W |
|
|
|
|
|
|
|
|
|
|
Idle |
190 mA |
190 mA |
0.95 W |
|
0.95 W |
|
|
|
|
|
|
|
|
|
|
R/W (*2) |
420 mA |
430 mA |
2.1 W |
|
2.15 W |
|
|
|
|
|
|
|
|
|
|
Standby |
70 mA |
70 mA |
0.35 W |
|
0.35 W |
|
|
|
|
|
|
|
|
|
|
Sleep |
26 mA |
26 mA |
0.13 W |
|
0.13 W |
|
|
|
|
|
|
|
|
|
|
Energy |
— |
— |
0.0002 W/MB |
|
0.0003 W/MB |
|
|
Consumption |
|
|
|
|
|
|
|
Efficiency |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
*1 Current at starting spindle motor.
*2 Power requirements reflect nominal values for +5V power.
*3 At 30% disk accessing.
(4) Current fluctuation (Typ.) at +5V when power is turned on
Figure 1.1 Current fluctuation (Typ.) at +5V when power is turned on
C141-E050-02EN |
1-7 |
Device Overview
(5) Power on/off sequence
The voltage detector circuits (the MHC Series and MHD Series) monitor +5 V. The circuits do not allow a write signal if either voltage is abnormal. These prevent data from being destroyed and eliminates the need to be concerned with the power on/off sequence.
Table 1.5 lists the environmental specifications.
|
Table 1.5 |
Environmental specifications |
|
|
|
|
|
Temperature |
|
|
|
• |
Operating |
|
5°C to 55°C (ambient) |
|
|
|
5°C to 60°C (disk enclosure surface) |
• |
Non-operating |
|
–40°C to 65°C |
• |
Thermal Gradient |
|
20°C/h or less |
|
|
|
|
Humidity |
|
|
|
• |
Operating |
|
8% to 90% RH (Non-condensing) |
• |
Non-operating |
|
5% to 95% RH (Non-condensing) |
• |
Maximum Wet Bulb |
|
29°C |
|
|
|
|
Altitude (relative to sea level) |
|
|
|
• |
Operating |
|
–300 to 3,000 m |
• |
Non-operating |
|
–300 to 12,000 m |
|
|
|
|
Table 1.6 lists the acoustic noise specification.
Table 1.6 Acoustic noise specification
Sound Pressure
• Idle mode (DRIVE READY) 30 dBA typical at 1 m
1-8 |
C141-E050-02EN |
|
|
|
|
|
|
|
|
|
|
1.7 Reliability |
|
|
1.6 |
Shock and Vibration |
|
|
|
|
|
|
|
||
|
|
|
Table 1.7 lists the shock and vibration specification. |
|
|||||||
|
|
|
Table 1.7 Shock and vibration specification |
|
|||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
Vibration (swept sine, one octave per minute) |
|
|
|
|
||||||
|
• |
Operating |
|
|
|
5 to 500 Hz, 1.0G0-peak (MHC series) |
|
||||
|
|
|
|
|
|
|
|
5 to 400 Hz, 1.0G0-peak (MHD series) |
|
||
|
|
|
|
|
|
|
|
(without non-recovered errors) (9.8 m/s2 0-peak) |
|
||
|
• |
Non-operating |
|
|
|
5 to 500 Hz, 5G0-peak (MHC series) |
|
||||
|
|
|
|
|
|
|
|
5 to 400 Hz, 5G0-peak (MHD series) |
|
||
|
|
|
|
|
|
|
|
(no damage) (49 m/s2 0-peak) |
|
||
|
|
|
|
|
|
|
|
|
|
|
|
|
Shock (half-sine pulse, 2 ms duration) |
|
|
|
|
|
|
|
|||
|
• |
Operating |
|
|
|
100G0-peak |
|
|
|
||
|
|
|
|
|
|
|
|
(without non-recovered errors) (980 m/s2 0-peak) |
|
||
|
• |
Non-operating |
|
|
|
500G0-peak (no damage) (4,900 m/s2 0-peak) |
|
||||
|
|
|
|
|
|
|
|
|
|
|
|
|
1.7 |
Reliability |
|
|
|
|
|
|
|
||
|
(1) Mean time between failures (MTBF) |
|
|
|
|
|
|
|
|||
|
|
|
|
|
|
|
|
|
|||
|
|
|
Conditions of 300,000 h |
|
Current time |
250H/month or less 3000H/years |
|
||||
|
|
|
|
|
|||||||
|
|
|
|
|
|
|
|
|
or less |
|
|
|
|
|
|
|
|
Operating time |
20% or less of current time |
|
|||
|
|
|
|
|
|
CSS operations |
50/day or less |
|
|||
|
|
|
|
|
|
|
|
|
Total 50,000 or less |
|
|
|
|
|
|
|
|
Power on/off |
1/day or more needed. |
|
|||
|
|
|
|
|
|
Environment |
5 to 55°C/8 to 90% |
|
|||
|
|
|
|
|
|
|
|
|
But humidity bulb temperature |
|
|
|
|
|
|
|
|
|
|
|
29°C or less |
|
|
|
|
|
MTBF is defined as follows: |
|
|
|
|||||
|
|
|
MTBF= |
Total operation time in all fields |
|
(H) |
|
||||
|
|
|
|
|
|
|
|
|
|
||
|
|
|
|
|
|
|
|
|
number of device failure in all fields
“Disk drive defects” refers to defects that involve repair, readjustment, or replacement. Disk drive defects do not include failures caused by external factors, such as damage caused by handling, inappropriate operating environments, defects in the power supply host system, or interface cable.
(2) Mean time to repair (MTTR)
The mean time to repair (MTTR) is 30 minutes or less, if repaired by a specialist maintenance staff member.
C141-E050-02EN |
1-9 |
Device Overview
(3) Service life
In situations where management and handling are correct, the disk drive requires no overhaul for five years when the DE surface temperature is less than 48°C. When the DE surface temperature exceeds 48°C, the disk drives requires no overhaul for five years or 20,000 hours of operation, whichever occurs first. Refer to item (3) in Subsection 3.2 for the measurement point of the DE surface temperature. Also the operating conditions except the environment temperature are based on the MTBF conditions.
(4) Data assurance in the event of power failure
Except for the data block being written to, the data on the disk media is assured in the event of any power supply abnormalities. This does not include power supply abnormalities during disk media initialization (formatting) or processing of defects (alternative block assignment).
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 252 times read retries without user’s retry and ECC corrections shall occur no more than 10 times when reading data of 1014 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 107 seek operations.
Defective sectors are replaced with alternates when the disk (the MHC Series and MHD Series) are formatted prior to shipment from the factory (low level format). Thus, the hosts see a defect-free devices.
Alternate sectors are automatically accessed by the disk drive. The user need not be concerned with access to alternate sectors.
1-10 |
C141-E050-02EN |
2.1Device Configuration
2.2System Configuration
This chapter describes the internal configurations of the hard disk drives and the configuration of the systems in which they operate.
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