Fujitsu MBA3300NC, MBA3073NC, MBA3147NC, MBA3073NP, MBA3300NP User Manual

C141-E270-01EN

MBA3300NC, MBA3300NP MBA3147NC, MBA3147NP MBA3073NC, MBA3073NP

HARD 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 porduct or system in accordance with the descriptions or instructions contained herein; including any liability for incidental or consequential damages arising therefrom.

FUJTSU 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.

This product is designed and manufactured for use in standard applications such as office work, personal devices and household appliances. This product is not intended for special uses (atomic controls, aeronautic or space systems, mass transport vehicle operating controls, medical devices for life support, or weapons firing controls) where particularly high reliability requirements exist, where the pertinent levels of safety are not guaranteed, or where a failure or operational error could threaten a life or cause a physical injury (hereafter referred to as "mission-critical" use). Customers considering the use of these products for mission-critical applications must have safety-assurance measures in place beforehand. Moreover, they are requested to consult our sales representative before embarking on such specialized use.

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 Right Reserved, Copyright © FUJITSU LIMITED 2007

C141-E270

		REVISION RECORD
Edition	Date published	Revised contents
01	October, 2007

Specification No.: C141-E270-**EN

C141-E270

Related Standards

Product specifications and functions described in this manual comply with the following ANSI (*1) standards.

Document number	Title
T10/1236D Rev.20 [NCITS.351:2001]	SCSI Primary Commands-2 (SPC-2)
T10/996D Rev.8c [NCITS.306:1998]	SCSI-3 Block Commands (SBC)
T10/1157D Rev.24	SCSI Architecture Model-2 (SAM-2)
T10/1365D Rev.10	SCSI Parallel Interface-4 (SPI-4)

*1 ANSI = American National Standard Institute

In case of conflict between this manual and any referenced document, this manual takes precedence.

Compliance with Administration on the Control of Pollution Caused by Electronic Information Products of the People's Republic of China

This product is shipped as a component to manufacture the final products. Therefore, the packaging material code provided in GB18455-2001 is not marked on any packaging part of this product.

C141-E270

PREFACE

This manual describes the MBA3300NC, MBA3300NP, MBA3147NC, MBA3147NP, MBA3073NC, and MBA3073NP 3.5-inch SCSI hard disk drives.

This manual details the specifications and functions of the above disk drives, and gives the requirements and procedures for installing it into a host computer system.

This manual is written for users who have a basic understanding of SCSI disk drives and their use in computer systems. The MANUAL ORGANIZATION section describes organization and scope of this manual. The need arises, use the other manuals.

OVERVIEW OF MANUAL

This manual consists of the following seven chapters and two appendixes:

CHAPTER 1 GENERAL DESCRIPTION

This chapter introduces the standard features, hardware, and system configuration of the HDD.

CHAPTER 2 SPECIFICATIONS

This chapter gives detailed specifications of the HDD and the installation environment.

CHAPTER 3 DATA FORMAT

This chapter describes the data structure, the addressing method, and the defect management.

CHAPTER 4 INSTALLATION REQUIREMENTS

This chapter describes the basic physical and electrical requirements for installing the disk drives.

CHAPTER 5 INSTALLATION

This chapter explains how to install the disk drives. It includes the notice and procedures for setting device number and operation modes, mounting the disk drive, connecting the cables, and confirming drive operation.

CHAPTER 6 DIAGNOSTICS AND MAINTENANCE

This chapter describes the automatic diagnosis and maintenance of the disk drive. This chapter also describes diagnostic methods for operation check and the basics of troubleshooting the disk drives.

CHAPTER 7 ERROR ANALYSIS

This chapter describes in details how collect the information for error analysis and how analyze collected error information.

APPENDIX A TO B

The appendixes give supplementary information, including a list of setting items and the signal assignments of interface connector.

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CONVENTIONS USED IN THIS MANUAL

The MBA3300NC, MBA3300NP, MBA3147NC, MBA3147NP, MBA3073NC, and MBA3073NP disk drives are described as "the hard disk drive (HDD)," "the disk drive" or "the device" in this manual.

Decimal number is represented normally.

Hexadecimal number is represented as X'17B9', 17B9h or 17B9H.

Binary number is represented as "010".

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:

CAUTION	This indicates that either minor or moderate
	personal injury may occur if the user does not
	perform the procedure correctly.
IMPORTANT	This indicates information that the helps the user
	use the product more effectively.

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)

CAUTION

Damage

Never remove any labels from the HDD or deface them in any way.

The main alert messages in the text are also listed in the "Important Alert Items."

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.

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Important Alert Items

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. This alert signal also indicates that damages to the product or other property may occur if the user does not perform the procedure correctly.

Task		Alert message	Page
Installation	Damage
	Never remove any labels from the HDD or deface them in any way.		50
	High temperature
	To prevent injury, never touch the HDD while it is hot. The DE and LSI		71
	become hot during operation and remain hot immediately after turning off the
	power.
	Data loss
	1.	The user must not change the setting of terminals not described in this	75
		section. Do not change setting status set at factory shipment.
	2.	Do not change the setting of terminals except following setting pins
		during the power is turned on.
		• Write protect: Pin pair 9/10 of the CN2 setting terminal
		(NP model only)
	3.	To short the setting terminal, use the short plug attached when the device
		is shipped from the factory.
	Damage
	1.	Make sure that system power is off before connecting or disconnecting	82
		cables.
	2.	Do not connect or disconnect cables when power is on.(except NC model)
	Damage
	1.	Be careful of the insertion orientation of the SCSI connectors. With the	82
		system in which terminating resistor power is supplied via the SCSI cable,
		if the power is turned on, the overcurrent protection fuse of the
		terminating resistor power supplier may be blown or the cable may be
		burnt if overcurrent protection is not provided.
		When the recommended parts listed in Table 4.2 are used, inserting the
		cables in the wrong direction can be prevented.
	2.	To connect SCSI devices, be careful of the connection position of the
		cable. Check that the SCSI device with the terminating resistor is the last
		device connected to the cable.

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Task	Alert message	Page
Installation	High temperature
	To prevent injury, never touch the HDD while it is hot. The DE and LSI	93
	become hot during operation and remain hot immediately after turning off the
	power.
Diagnostics and	Data loss
Maintenance	When the SEND DIAGNOSTIC command terminates with the CHECK	98
	CONDITION status, the initiator must collect the error information using the
	REQUEST SENSE command. The RECEIVE DIAGNOSTIC RESULTS
	command cannot read out the error information detected in the self-
	diagnostics.
	Data loss
	Save data stored on the HDD to other media before requesting repair. Fujitsu	99
	does not assume responsibility if data is corrupted during servicing or repair.
	High temperature
	To prevent injury, never touch the HDD while it is hot. The DE and LSI	99
	become hot during operation and remain hot immediately after turning off the
	power.
	Electrical shock	100
	- To avoid shocks, turn off the power before connecting or disconnecting a
	cable, connector, or plug.
	- Never touch the HDDs while power-feeding.
	Damage
	- Always ground yourself with a wrist strap connected to ground before	100
	handling. ESD (Electrostatics Discharge) may cause the damage to the
	device.
	- To prevent electrical damage to the HDD, turn the power off before
	connecting or disconnecting a cable, connector, or plug.
	- Never remove a PCBA.
	- Never use a conductive cleaner to clean the HDDs.
	- Ribbon cables are marked with a colored line. Connect the ribbon cable
	to a cable connector with the colored wire connected to pin 1.
	- Never open the HDD for any reason.
	Damage
	- Never remove any labels from the HDD or deface them in any way.	107
	- Never open the DE for any reason. Doing so will void any warranties.

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MANUAL ORGANIZATION

PRODUCT		1. General Description
MANUAL		2. Specifications
		3.	Data Format
(This manual)		4.	Installation Requirements
		5.	Installation
		6.	Diagnostics and Maintenance
		7.	Error Analysis

SCSI PHYSICAL

INTERFACE

SPECIFICATIONS

SCSI LOGICAL

INTERFACE

SPECIFICATIONS

1.SCSI Bus

2.SCSI Message

3.Error Recovery

1.Command Processing

2.Data Buffer Management

3.Command Specifications

4.Parameter Data Formats

5.Sense Data and Error Recovery Method

6.Disk Media Management

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This page is intentionally left blank.

		CONTENTS
			page
CHAPTER 1		GENERAL DESCRIPTION............................................................................	13
1.1	Standard Features .............................................................................................................		14
1.2	Hardware Structure ..........................................................................................................		18
1.3	System Configuration.......................................................................................................		19
CHAPTER 2		SPECIFICATIONS ..........................................................................................	21
2.1	Hardware Specifications...................................................................................................		21
2.1.1	Model name and order number ........................................................................................		21
2.1.2	Function specifications.....................................................................................................		22
2.1.3	Environmental specifications ...........................................................................................		25
2.1.4	Error rate ..........................................................................................................................		26
2.1.5	Reliability .........................................................................................................................		27
2.2	SCSI Function Specifications...........................................................................................		29
CHAPTER 3		DATA FORMAT ..............................................................................................	31
3.1	Data Space........................................................................................................................		31
3.1.1	Cylinder configuration .....................................................................................................		31
3.1.2	Alternate spare area..........................................................................................................		33
3.1.3	Track format.....................................................................................................................		35
3.1.4	Sector format ....................................................................................................................		36
3.1.5	Format capacity ................................................................................................................		38
3.2	Logical Data Block Addressing .......................................................................................		38
3.3	Defect Management .........................................................................................................		40
3.3.1	Defect list .........................................................................................................................		40
3.3.2	Alternate block allocation ................................................................................................		40
CHAPTER 4		INSTALLATION REQUIREMENTS............................................................	47
4.1	Mounting Requirements ...................................................................................................		47
4.1.1	External dimensions .........................................................................................................		47
4.1.2	Mounting orientations ......................................................................................................		50
4.1.3	Notes on mounting ...........................................................................................................		50
4.2	Power Supply Requirements ............................................................................................		53
4.3	Connection Requirements ................................................................................................		58
4.3.1	SCA2 connector type 16-bit SCSI model (NC model).....................................................		58

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4.3.2	68-pin connector type 16-bit SCSI model (NP model) ....................................................	60
4.3.3	Cable connector requirements ..........................................................................................	67
4.3.4	External operator panel (on NP model drives only).........................................................	68
CHAPTER 5 INSTALLATION..............................................................................................		71
5.1	Notes on Handling HDDs ................................................................................................	71
5.2	Connections......................................................................................................................	73
5.3	Setting Terminals .............................................................................................................	75
5.3.1	SCSI ID setting.................................................................................................................	76
5.3.2	Each mode setting ............................................................................................................	78
5.3.3	Mode settings ...................................................................................................................	80
5.4	Mounting HDDs...............................................................................................................	81
5.4.1	Check before mounting ....................................................................................................	81
5.4.2	Mounting procedures........................................................................................................	81
5.5	Connecting Cables............................................................................................................	82
5.6	Checking Operation after Installation and Preparing the HDDs for Use .........................	83
5.6.1	Confirming initial operations ...........................................................................................	83
5.6.2	Checking SCSI connection...............................................................................................	84
5.6.3	Formatting ........................................................................................................................	87
5.6.4	Setting parameters ............................................................................................................	89
5.7	Dismounting HDDs..........................................................................................................	93
CHAPTER 6 DIAGNOSTICS AND MAINTENANCE.......................................................		95
6.1	Diagnostics .......................................................................................................................	95
6.1.1	Self-diagnostics ................................................................................................................	95
6.1.2	Test programs...................................................................................................................	98
6.2	Maintenance .....................................................................................................................	99
6.2.1	Precautions .......................................................................................................................	99
6.2.2	Maintenance requirements................................................................................................	100
6.2.3	Maintenance levels ...........................................................................................................	101
6.2.4	Tools and test equipment..................................................................................................	102
6.2.5	Tests .................................................................................................................................	102
6.3	Operation Check...............................................................................................................	104
6.3.1	Initial seek operation check..............................................................................................	104
6.3.2	Operation test ...................................................................................................................	104
6.3.3	Diagnostic test ..................................................................................................................	104
6.4	Troubleshooting ...............................................................................................................	105

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6.4.1	Outline of troubleshooting procedures .............................................................................	105
6.4.2	Troubleshooting with HDD replacement in the field .......................................................	105
6.4.3	Troubleshooting at the repair site.....................................................................................	107
6.4.4	Troubleshooting with parts replacement in the factory ....................................................	108
6.4.5	Finding possibly faulty parts ............................................................................................	108
6.5	Packaging .........................................................................................................................	108
6.5.1	Single HDD packaging.....................................................................................................	108
6.5.2	Multi-box packaging ........................................................................................................	110
CHAPTER 7 ERROR ANALYSIS.........................................................................................		113
7.1	Sense Data Collection ......................................................................................................	113
7.1.1	Sense data.........................................................................................................................	113
7.1.2	Sense data format .............................................................................................................	113
7.2	Sense Data Analysis .........................................................................................................	115
7.2.1	Error information indicated with sense data.....................................................................	115
7.2.2	Sense data (3-0C-03), (4-32-00), (4-40-xx), and (4-C4-xx) ............................................	116
7.2.3	Sense data (1-1x-xx), (3-1x-xx) and (E-1D-00): Disk read error...................................	116

7.2.4Sense data (4-44-xx), (5-2x-xx), (5-90-00), (B-44-xx), (B-47-xx), (B-48-00),

	(B-49-00), (B-4D-xx) and (B-4E-00): SCSI interface error............................................	116
APPENDIX A SETTING TERMINALS.................................................................................		117
A.1	Setting Terminals (on NP model only).............................................................................	118
APPENDIX B CONNECTOR SIGNAL ALLOCATION .....................................................		119
B.1	SCSI Connector Signal Allocation: SCA2 type LVD 16-bit SCSI .................................	120
B.2	SCSI Connector Signal Allocation: 68-pin type LVD 16-bit SCSI ................................	121
GLOSSARY..................................................................................................................................		123
ACRONYMS AND ABBREVIATIONS ....................................................................................		125
INDEX	.......................................................................................................................................	127

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	FIGURES
		page
Figure 1.1	System configuration...........................................................................................................	19
Figure 3.1	Cylinder configuration.........................................................................................................	32
Figure 3.2	Spare area in cell..................................................................................................................	34
Figure 3.3	Alternate cylinder ................................................................................................................	34
Figure 3.4	Track format ........................................................................................................................	35
Figure 3.5	Track skew/head skew.........................................................................................................	36
Figure 3.6	Sector format .......................................................................................................................	36
Figure 3.7	Alternate block allocation by FORMAT UNIT command ..................................................	42
Figure 3.8	Alternate block allocation by REASSIGN BLOCKS command .........................................	43
Figure 4.1	NC model dimensions..........................................................................................................	48
Figure 4.2	NP model dimensions..........................................................................................................	49
Figure 4.3	HDD orientations.................................................................................................................	50
Figure 4.4	Mounting frame structure ....................................................................................................	51
Figure 4.5	Limitation of side-mounting ................................................................................................	52
Figure 4.6	Surface temperature measurement points ............................................................................	53
Figure 4.7	Current waveform (Spin-up) ...............................................................................................	54
Figure 4.8	Current waveform (Max seek).............................................................................................	55
Figure 4.9	Power on/off sequence (1)...................................................................................................	55
Figure 4.10	Power on/off sequence (2)...................................................................................................	56
Figure 4.11	Power on/off sequence (3)...................................................................................................	56
Figure 4.12	AC noise filter (recommended) ...........................................................................................	58
Figure 4.13	NC connectors location .......................................................................................................	58
Figure 4.14	SCA2 type 16-bit SCSI connector.......................................................................................	59
Figure 4.15	NP connectors and terminals location .................................................................................	60
Figure 4.16	68-pin type 16-bit SCSI interface connector .......................................................................	61
Figure 4.17	Power supply connector (68-pin type 16-bit SCSI).............................................................	61
Figure 4.18	External operator panel connector (CN1)............................................................................	62
Figure 4.19	External operator panel connector (CN2)............................................................................	62
Figure 4.20	16-bit SCSI ID external input..............................................................................................	63
Figure 4.21	Output signal for external LED ...........................................................................................	65
Figure 4.22	SCSI cables connection .......................................................................................................	66

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Figure 4.23	External operator panel circuit example ..............................................................................	68
Figure 5.1	SCSI bus connections ..........................................................................................................	74
Figure 5.2	Setting terminals location (on NP models only)..................................................................	75
Figure 5.3	CN2 setting terminal (on NP models only) .........................................................................	76
Figure 5.4	Checking the SCSI connection (A) .....................................................................................	85
Figure 5.5	Checking the SCSI connection (B)......................................................................................	86
Figure 6.1	Test flowchart....................................................................................................................	103
Figure 6.2	Single HDD packaging......................................................................................................	108
Figure 6.3	Multi-box packaging..........................................................................................................	110
Figure 6.4	Fraction packaging ............................................................................................................	111
Figure 7.1	Sense data format...............................................................................................................	114

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	TABLES
		page
Table 2.1	Model names and order numbers.........................................................................................	21
Table 2.2	Function specifications ........................................................................................................	22
Table 2.2	Function specifications (continued).....................................................................................	23
Table 2.3	Environmental/power requirements.....................................................................................	25
Table 2.3	Environmental/power requirements (continued) .................................................................	26
Table 2.4	SCSI function specifications ...............................................................................................	29
Table 3.1	Format capacity ...................................................................................................................	38
Table 4.1	Surface temperature check point .........................................................................................	52
Table 4.2	Recommended components for connection.........................................................................	67
Table 5.1	SCSI ID setting....................................................................................................................	77
Table 5.2	Setting SCSI terminator power supply (NP model).............................................................	78
Table 5.3	Motor start mode setting......................................................................................................	78
Table 5.4	Write protect setting (NP model).........................................................................................	79
Table 5.5	Setting of the SCSI interface operation mode (NP model)..................................................	79
Table 5.6	Setting the bus width of the SCSI interface (NP model) ....................................................	79
Table 5.7	Default mode settings (by CHANGE DEFINITION command).........................................	80
Table 5.8	Setting check list (NP model only)......................................................................................	81
Table 6.1	Self-diagnostic functions .....................................................................................................	95
Table 6.2	System-level field troubleshooting ....................................................................................	106
Table 6.3	HDD troubleshooting ........................................................................................................	107
Table 7.1	Definition of sense data .....................................................................................................	115
Table A.1	CN2 setting terminal (on NP model drives only) ..............................................................	118
Table B.1	SCSI connector (SCA2 type LVD 16-bit SCSI): CN1.....................................................	120
Table B.2	SCSI connector (68-pin type LVD 16-bit SCSI): CN1 ....................................................	121

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CHAPTER 1 GENERAL DESCRIPTION

1.1Standard Features

1.2Hardware Structure

1.3System Configuration

This chapter describes the feature and configuration of the MBA3xxxxx.

The HDDs are high performance large capacity 3.5-inch hard disk drives with an embedded SCSI controller.

The HDDs support the Small Computer System Interface (SCSI) as described in the ANSI SCSI SPI-4 [T10/1365D Rev.10] to the extent described in this manual.

The flexibility and expandability of the SCSI, as well as the powerful command set of the HDD, allow the user to construct a high-performance reliable disk subsystem with large storage capacity.

The data format can be changed from the format at factory shipment by reinitializing with the user's system. Refer to Chapter 6 “Disk Media Management” of the SCSI Logical Interface Specifications for details.

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1.1Standard Features

(1)Compactness

Since the SCSI controller circuit is embedded in the standard 3.5-inch hard disk drive form factor, the HDD is extremely compact. The HDD can be connected directly to the SCSI bus of the host system.

(2)Environmental Protection

The HDDs comply with the Restriction of the use of certain Hazardous Substances in electrical and electronic equipment (RoHS) directive issued by European Union (EU).

(3)SCSI standard

The HDD provides not only SCSI basic functions but also the following features:

•Arbitration

•Disconnection/Reconnection

•Data bus parity

The SCSI commands can manipulate data through logical block addressing regardless of the physical characteristics of the HDD. This allows software to accommodate future expansion of system functions.

(4)8-bit SCSI/16-bit SCSI

The HDD has 16-bit data bus width (16-bit SCSI), which have the wide transfer function suitable for SCSI-2. 8-bit data bus is available only with NP model.

See subsection 5.3.2 for details of the bus width setting.

For the ultra SCSI model, number of connectable SCSI devices on the same SCSI bus is varied as follows.

•	8-bit SCSI:	8 drives max. (option for NP model)
•	16-bit SCSI:	16 drives max.

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(5)High speed data transfer

Such a high data transfer rate on the SCSI bus can be useful with the large capacity buffer in the HDD.

•	8-bit SCSI:	The data transfer rate on the SCSI bus is 40 MB/s maximum at the
		synchronous mode.
•	16-bit SCSI:	The data transfer rate on the SCSI bus is 320 MB/s maximum at the paced
		transfer synchronous mode.

Note:

The maximum data transfer rate in asynchronous mode may be limited by the response time of initiator and the length of SCSI bus length. The maximum data transfer rate in synchronous mode may be limited by the cable length, transmission characteristics of the SCSI bus and the connected SCSI device number.

(6)Continuous block processing

The addressing method of data blocks is logical block address. The initiator can access data by specifying block number in a logically continuous data space without concerning the physical structure of the track or cylinder boundaries.

The continuous processing up to [64K-1] blocks in a command can be achieved, and the HDD can perform continuous read/write operation when processing data blocks on several tracks or cylinder.

(7)Multi-segment data buffer

The data buffer is 8M bytes. Data is transferred between SCSI bus and disk media through this data buffer. This feature provides the suitable usage environment for users.

Since the initiator can control the disconnect/reconnect timing on the SCSI bus by specifying the condition of stored data to the data buffer or empty condition of the data buffer, the initiator can perform the effective input/output operations with utilizing high data transfer capability of the SCSI bus regardless of actual data transfer rate of the disk drive.

(8)Cache feature

After executing the READ command, the HDD reads automatically and stores (prefetches) the subsequent data blocks into the data buffer (Read-ahead caching).

The high speed sequential data access can be achieved by transferring the data from the data buffer without reaccessing the disk in case the subsequent command requests the prefetched data blocks.

The write cache feature is supported. When this feature is enabled, the status report is issued without waiting for completion of write processing to disk media, thereby enabling high speed write processing.

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IMPORTANT

When Write cache is enabled, you should ensure that the cached data is surely flushed to the disk media before you turn off the HDD's power.

To ensure it, you should issue either the SYNCHRONIZE CACHE command or the STOP UNIT command with specifying “0” to the Immediate bit and then confirm that the command is surely terminated with the GOOD STATUS.

(9)Command queuing feature

The HDD can queue maximum 128 commands, and optimizes the issuing order of queued commands by the reordering function. This feature realizes the high speed processing.

(10)Reserve and release functions

The HDD can be accessed exclusively in the multi-host or multi-initiator environment by using the reserve and release functions.

(11)Error recovery

The HDD can try to recover from errors in SCSI bus or the HDD using its powerful retry processing. If a recoverable data check occurs, error-free data can be transferred to the initiator after being corrected in the data buffer. The initiator software is released from the complicated error recover processing by these error recovery functions of the HDD.

(12)Automatic alternate block reassignment

If a defective data block is detected during read or write the HDD can automatically reassign its alternate data block.

(13)Programmable data block length

Data can be accessed in fixed-block length units. The data block length is programmable, and can be specified at initializing with a multiple of four within the range of 512 to 528 bytes.

IMPORTANT

Error rate increase

1.The HDD format at factory shipment is generally 512 byte.

2.The Recoverable Error of the drive might increase when the format would be modified from 512 bytes to the following values: 516 bytes, 520 bytes, 524 bytes, and 528 bytes.

3.The Recoverable Error referred in 2) is sense data (1-13-xx).

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(14)Defective block slipping

A logical data block can be reallocated in a physical sequence by slipping the defective data block at formatting. This results in high speed contiguous data block processing without a revolution delay due to defective data block.

(15)High speed positioning

A rotary voice coil motor achieves fast positioning with high performance access control.

(16)Large capacity

A large capacity can be obtained from the HDDs by dividing all cylinders into several partitions and changing the recording density on each partition (constant density recording). The disk subsystem with large capacity can be constructed in the good space efficiency.

(17)Start/Stop of spindle motor

Using the SCSI command, the host system can start and stop the spindle motor.

(18)Diagnosis

The HDD has a diagnostic capability which checks internal controller functions and HDD operations. Also, for early detection of and recovery from the errors on the disk, the HDD has a function for periodically implementing a full scan of the disk.

(19)Low power consumption

By using highly integrated LSI components, the power consumption of the HDD is very low, and this enables the unit to be used in wide range of environmental conditions.

(20)Low acoustic noise

The acoustic noise level is low; approx. 3.6 Bels at Idle. This makes it ideal for office use.

(21)Microcode downloading

The HDD implements the microcode download feature. This feature achieves easy maintainability of the HDD and function enhancing.

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1.2Hardware Structure

The HDDs have a disk enclosure (DE) and a printed circuit board assembly (PCBA). The DE includes the heads on an actuator and the disks on a spindle motor mounted on the DE. The PCBA includes a read/write circuit and a controller circuit.

(1)Disks

The disks have an outer diameter of 70 mm (2.8 inch).

(2)Heads

The heads have MR (Magnet-Resistive) read element Ramp Load type slider.

(3)Spindle motor

The disks are rotated by a direct-drive hall-less DC motor. The motor speed is controlled by a feedback circuit using the counter electromotive current to precisely maintain of the specified speed.

(4)Actuator

The actuator, which uses a rotary voice coil motor (VCM), consumes little power and generates little heat. The heads at the end of the actuator arm are controlled and positioned via feedback of servo information in the data.

The heads are positioned on the ramp when the power is off or the spindle motor is stopped.

(5)Air circulation (recirculation filter, breather filter)

The disk enclosure (DE) configures a clean room to keep out particle and other contaminants. The DE has a closed-loop air recirculation system. Using the movement of the rotating disks, air is continuously cycled through a filter. This filter will trap any particle floating inside the enclosure and keep the air inside the DE contaminant free. To prevent negative pressure in the vicinity of the spindle when the disks begin rotating, a breather filter is attached. The breather filter also equalizes the internal air pressure with the atmospheric pressure due to surrounding temperature changes.

(6)Read/write circuit

The read/write circuit utilizes a read channel mounted with a head IC that supports high-speed transmission and an MEEPRML (Modified Enhanced Extended Partial Response Maximum Likelihood) modulation/demodulation circuit in order to prevent errors being triggered by external noise and to improve data reliability.

(7)Controller circuit

The controller circuit uses LSIs to increase the reliability and uses a high speed microprocessing unit (MPU) to increase the performance of the SCSI controller.

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1.3System Configuration

Figure 1.1 shows the system configuration. The HDDs are connected to the SCSI bus of host systems and are always operated as target. The HDDs perform input/output operation as specified by SCSI devices which operate as initiator.

SCSI bus

HDD

HDD

(#14)

(#15)

Figure 1.1 System configuration

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(1)SCSI bus configuration

Up to eight SCSI devices operating as an initiator or a target can be connected to the SCSI bus for the 8-bit SCSI and up to 16 SCSI devices operating as an initiator or a target can be connected to the SCSI bus for the 16-bit SCSI in any combination.

For example, the system can be configured as multi-host system on which multiple host computers that operate as initiator or connected through the SCSI bus.

Using disconnect/reconnect function, concurrent input/output processing is possible on multiSCSI devices.

(2)Addressing of peripheral device

Each SCSI device on the bus has its own unique address (SCSI ID:#n in Figure 1.1). For input/output operation, a peripheral device attached to the SCSI bus that operates as target is addressed in unit called as logical unit. A unique address (LUN: logical unit number) is assigned for each logical unit.

The initiator selects one SCSI device by specifying that SCSI ID, then specifies the LUN to select the peripheral device for input/output operation.

The HDD is constructed so that the whole volume of disk drive is a single logical unit, the selectable number of SCSI ID and LUN are as follows:

•	SCSI ID:	8-bit SCSI:Selectable from 0 to 7 (option for NP model, switch selectable)
		16-bit SCSI:Selectable from 0 to 15 (switch selectable)
•	LUN:	0 (fixed)

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CHAPTER 2 SPECIFICATIONS

2.1Hardware Specifications

2.2SCSI Function Specifications

This chapter describes specifications of the HDD and the functional specifications of the SCSI.

2.1 Hardware Specifications

2.1.1 Model name and order number

Each model has a different recording capacities and interface connector type when shipped. Table 2.1 lists the model name and order number.

The data format can be changed by reinitializing with the user's system.

Table 2.1 Model names and order numbers

	Model name	Order number	SCSI type	Capacity
				(user area)
	MBA3300NC	CA06708-B400	SCA2, LVD	300 GB (*)
	MBA3300NP	CA06708-B850	68-pin, LVD
	MBA3147NC	CA06708-B200	SCA2, LVD	147 GB (*)
	MBA3147NP	CA06708-B650	68-pin, LVD
	MBA3073NC	CA06708-B100	SCA2, LVD	73.5 GB (*)
	MBA3073NP	CA06708-B550	68-pin, LVD

(*)One gigabyte (GB) = one billion bytes; accessible capacity will be less and actual capacity depends on the operating environment and formatting.

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2.1.2Function specifications

Table 2.2 shows the function specifications of the HDD.

Table 2.2 Function specifications

					Specification
	Item
			MBA3300NC		MBA3147NC		MBA3073NC
			MBA3300NP		MBA3147NP		MBA3073NP
Format capacity (*1)			300 GB (*2)		147 GB (*2)		73.5 GB (*2)
Number of disks			4		2		1
Number of heads			8		4		2
Tracks per Surface			82,604 cyl typ. (standard format including the alternate cylinder)
Recording mode					60/62 MEEPRML
Areal density					124.7 Gbit/inch2
Maximum recording density					860 kBPI
Track density					145 kTPI typ.
Seek time		Track to			0.2 ms / 0.4 ms
		Track
(Read/Write)		Average			3.4 ms / 3.9 ms
(*3)
		Full stroke			8.0 ms / 9.0 ms
Number of rotations				15,000 ± 0.2 % min-1 (rpm)
Average latency time					2.0 ms
Start/stop time (*4)		ready up time			30 s typ. (60 s max.)
		Stop time			30 s typ.
		Height			26.1 mm max.
External dimensions		Width			101.6 mm ± 0.25 mm
		Length			147.0 mm max.
Weight					0.8 kg max.
Power consumption (*5)					13.06 W typ.
		Fast 5 SCSI		Cable length: 6 m max.
	Single	Fast 10 SCSI		Cable length: 3 m max.
	ended
Interface		Fast 20 SCSI		Cable length: 3 m max. (*6)
			Cable length: 1.5 m max. (*7)
	LVD	Ultra 2 Wide	Cable length: 25 m max. (*8)
		U160
			Cable length: 12 m max. (*9)
		U320
Data transfer rate (*10)		Internal	188 MB/s (standard format, most outer)
		External			320 MB/s max.
Logical data block length			512 to 528 byte (fixed length) (*11)

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Table 2.2 Function specifications (continued)

				Specification
	Item
		MBA3300NC		MBA3147NC		MBA3073NC
		MBA3300NP		MBA3147NP		MBA3073NP
	Related standards	SPI-4 (T10/1365D Rev. 10), SAM-2 (T10/1157D Rev. 24),
		SPC-2 (T10/1236D Rev. 20), SBC (T10/996D Rev. 8c)
	Data buffer		8 MB FIFO ring buffer (*12)
	Acoustic noise (Idle)			3.6 Bels typ.

(*1) The formatted capacity can be changed by changing the logical block length and using spare sector space. See Chapter 3 for the further information. The formatted capacity listed in the table is an estimate for 512 bytes per sector.

(*2) One gigabyte (GB) = one billion bytes; accessible capacity will be less and actual capacity depends on the operating environment and formatting.

(*3) The seek time is as follows:

Seek time [ms]

Seek difference [4096 Cyl/div]

(*4) The start time is the time from power on or start command to when the HDD is ready, and the stop time is the time for disks to completely stop from power off or stop command.

(*5) This value indicates during idle mode. Power supply at nominal voltage ± 1%. 25°C ambient.

(*6) Up to 4 SCSI devices having capacitance of 25pF or less can use cable length of up to 3.0 m.

(*7) 5 to 8 SCSI devices having capacitance of 25pF or less can use cable length of up to 1.5 m.

(*8) 1 on 1 connection case.

(*9) 1 host, 15 devices case.

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(*10) The maximum data transfer rate may be restricted to the response speed of initiator and by transmission characteristics. 1MB/s=1,000,000 bytes/s.

(*11) Refer to 1.1(13).

(*12) 1MB=1,048,576 bytes

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2.1.3Environmental specifications

Table 2.3 lists environmental and power requirements.

Table 2.3 Environmental/power requirements

						Specification
		Item
				MBA3300NC		MBA3147NC		MBA3073NC
				MBA3300NP		MBA3147NP		MBA3073NP
		Operating				5 to 55°C
	Temperature	Non-operating				–40 to 70°C
		Transport				–40 to 70°C
	(*1)
		DE surface temperature at operating				5 to 60°C
		Gradient				20°C/h or less
		Operating				5 to 95%RH
	Relative	Non operating				5 to 95%RH
	humidity	Transport				5 to 95%RH
		Maximum wet bulb temperature			29°C (no condensation)
	Vibration	Operating (*3)		0.6 mm (5 to 20 Hz)/9.8 m/s2 (1 G) (20 to 300 Hz) or less
		Non-operating (*4)		3.1 mm (5 to 20 Hz)/49m/s2 (5 G) (20 to 300 Hz) or less
	(*2)
		Transport (packaged)		3.1 mm (5 to 20 Hz)/49m/s2 (5 G) (20 to 300 Hz) or less
		Operating		637.4 m/s2 (65 G)/2 ms duration
	Shock (*2)	Non-operating		2451.7 m/s2 (250 G)/2 ms duration
		Transport (packaged)		2451.7 m/s2 (250 G)/2 ms duration
	Altitude	Operating		–305 to +3,048 m (-1,000 to +10,000 feet)
		Non-operating		–305 to +12,192 m (-1,000 to +40,000 feet)
			Regulation		± 5 %
			Ready (average)	0.88 A		0.60 A		0.45 A
	Power		Spin up			2.5 A (peak)
		+12V DC			3.5 A (less than 100 μs)
	requirement
	(*5)		Peak operating current	2.8 A		2.5 A		2.3 A
			Maximum (peak) DC (*6)
			Peak operating current	1.15 A		0.9 A		0.75 A
			DC (reference) (*6)

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Table 2.3 Environmental/power requirements (continued)

					Specification
	Item
			MBA3300NC		MBA3147NC		MBA3073NC
			MBA3300NP		MBA3147NP		MBA3073NP
		Regulation		± 5 %
		Ready (average)			0.5 A
Power	+5V DC	Peak operating current			1.5 A
		Maximum (peak) DC
requirement
		(*6)
(*5)
		Peak operating current			0.79 A
		DC (reference) (*6)
	Ripple (+5 V, +12 V)			250 mVp-p or less (*7)

(*1) For detail condition, see Section 4.1.

(*2) Vibration applied to the drive is measured at near the mounting screw hole on the frame as much as possible.

(*3) At random seek write/read and default on retry setting with log sweep vibration.

(*4) At power-off state after installation

Vibration displacement should be less than 2.5 mm.

(*5) Input voltages are specified at the HDD connector side during HDD Idle state.

(*6) Operating currents are values under random W/R operation of full partition at about 220 IOPS.

(*7) High frequency noise (over 20 MHz) is less than 100 mVp-p.

2.1.4Error rate

Errors detected during initialization and replaced by alternate block assignments are not included in the error rate. Data blocks to be accessed should be distributed over the disk equally.

(1)Unrecoverable error rate

Errors which cannot be recovered within 63 retries and ECC correction should not exceed 10 per 1016 bits read.

(2)Positioning error rate

Positioning errors which can be recovered by one retry should be 10 or less per 108 seeks.

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