Fujitsu MBB2147RC, MBB2073RC User Manual
C141-E257-02EN
MBB2147RC
MBB2073RC
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 preven t 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 pro duct 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.
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 requiremen ts 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 Rights Reserved, Copyright FUJITSU LIMITED 2007
C141-E257
REVISION RECORD
Edition Date published Revised contents
01 April, 2007
02 July, 2007 The followings are changed.
- Important Alert Items
- Section 1.2
- Table 2.2 and Table 2.3
- (1) of Subsection 3.3.2
- (6) of Subsection 4.1.3
- Section 5.1
- (1) and (3) of Subsection 5.4.1
- Subsection 5.4.2
- (2) and (4) of Subsection 5.4.3
- Subsection 6.1.1
- Damage of Subsection 6.2.1
- Subsection 6.3.2
- Damage of Subsection 6.4.3
- Subsection 7.2.1
Specification No.: C141-E257-**EN
C141-E257
Related Standards
Product specifications and functions described in this manual comply with the following ANSI
(*1) standards and SFF Committee specifications.
Document number Title
T10/1236D Rev.20
[NCITS.351:2001]
T10/996D Rev. 8c
[NCITS.306:1998]
T10/1157D Rev. 24 SCSI Architecture Model-2 (SAM-2)
T10/1561D Rev. 14 SCSI Architecture Model-3 (SAM-3)
T10/1562D Rev. 05 Serial Attached SCSI (SAS)
T10/1601D Rev. 10 Serial Attached SCSI Model-1.1 (SAS 1.1)
SFF-8201 Rev. 2.4 Form Factor of 2.5" Disk Drives
SFF-8223 Rev. 2.5 2.5" Drive Form Factor with Serial Connector
*1 ANSI = American National Standard Institute
In case of conflict between this manual and any referenced document, this manual takes
precedence.
SCSI Primary Command s- 2 (SPC-2)
SCSI-3 Block Commands (SBC)
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-E257
Preface
This manual describes MBB2147RC and MBB2073RC, 2.5-inch type hard disk drives
with an embedded Serial Attached SCSI (SAS).
This manual details the specifications and functions of the above disk drive, and gives the
requirements and procedures for installing it into a host computer system.
This manual is written for users who hav e a basic unde r standin g of hard 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.
The organization of this manual, related reference manual and conventions for alert
messages follow.
Overview of Manual
This manual consists of the following seven chapters:
Chapter 1 General Description
This chapter introduces the disk drives standard features, hardware, and system
configuration.
Chapter 2 Specifications
This chapter gives detailed specifications of the disk drives 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, 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.
C141-E257 1
Preface
CONVENTIONS USED IN THIS MANUAL
MBB2147RC and MBB2073RC hard disk drives are described as "the HDD" 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:
This indicates 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 product correctly.
Attention
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)
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.”
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.
2 C141-E257
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. Also, damage 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.
High temperature
To prevent injury, never touch the HDD while it is hot. The DE and LSI
become hot during operation and remain hot immediately after turn ing off
the power.
Damage
1. When dismounting the HDD which is mounted on the system while
power is supplied to it.
1) Stop the spindle motor by a START/STOP UNIT command. It takes
about 15 seconds for the spindle motor to stop completely.
2) Then, dismount the HDD using the HDD mounting/dismounting
mechanism, etc. of the system. When removing the HDD, avoid
exposing it to shock or vibration. Just in case, stop dismounting once
when SAS connector breaks off contact and wait unitil the spindle
motor stops (about 15 seconds.).
2. When dismounting the HDD which is mounted on the system while
power is not supplied to it.
• Dismount the HDD using the HDD mounting/dismounting
mechanism, etc. of the system. When removing the HDD, avoid
exposing it to shock or vibration.
3. When storing or transporting the HDD, put it in the antistatic bag
(refer to Section 5.1 and 6.5).
43
53, 62, 67
62
C141-E257 3
Important Alert Items
Task Alert message Page
Diagnostics
and
Maintenance
Data loss
Save data stored on the HDD to other media be fore requesting repair.
Fujitsu does not assume respon sibility 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
become hot during operation and remain hot immediately after turning off
the power.
Electrical shock
Never touch the HDDs while power-feeding.
Damage
• Always ground yourself with a wrist strap connected to ground before
handling. ESD (Electrostatics Discharge) may cause the damage to the
device.
• Never use a conductive cleaner to clean the HDDs.
• Never remove any labels from the HDD or deface them in any way.
• Never remove the PCBA.
• Never open the HDD for any reason.
Damage
• Never remove any labels from the HDD or deface them in any way.
67
67
67
67
74
• Never open the HDD for any reason. Doing so will void any
warranties.
4 C141-E257
MANUAL ORGANIZATION
PRODUCT MANUAL
(This manual)
SAS INTERFACE
MANUAL
1. General Description
2. Specifications
3. Data Format
4. Installation Requirements
5. Installation
6. Diagnostics and Maintenance
7. Error Analysis
1. SAS Interface
2. Command Processing
3. Data Buffer Management
4. Command Specifications
5. Parameter Data Formats
6. Sense Data and Error Recovery Methods
7. Disk Media Management
C141-E257 5
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CONTENTS
CHAPTER 1 General Description....................................................................13
1.1 Standard Features......................................................................................13
1.2 Hardware Structure...................................................................................17
1.3 System Configuration ...............................................................................18
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....................................................................24
2.1.4 Error rate...................................................................................................25
2.1.5 Reliability..................................................................................................25
CHAPTER 3 Data Format.................................................................................27
3.1 Data Space ................................................................................................27
3.1.1 Cylinder configuration..............................................................................27
3.1.2 Alternate spare area ..................................................................................30
3.1.3 Track format..............................................................................................31
3.1.4 Sector format.............................................................................................32
3.1.5 Format capacity.........................................................................................34
3.2 Logical Data Block Addressing................................................................34
3.3 Defect Management..................................................................................36
3.3.1 Defect list..................................................................................................36
3.3.2 Alternate block allocation.........................................................................36
CHAPTER 4 Installation Requirements..........................................................41
4.1 Mounting Requirements ...........................................................................41
C141-E257 7
Contents
4.1.1 Dimensions............................................................................................... 41
4.1.2 Mounting orientations.............................................................................. 42
4.1.3 Notes on mounting................................................................................... 43
4.2 Power Supply Requirements.................................................................... 46
4.3 Connection Requirements........................................................................ 48
4.3.1 Connector location................................................................................... 48
4.3.2 Interface connector................................................................................... 49
4.3.3 Ready LED output signal.........................................................................51
4.3.4 Connector requirements........................................................................... 51
CHAPTER 5 Installation ..................................................................................53
5.1 Notes on Handling HDDs ........................................................................ 53
5.2 Setting ...................................................................................................... 55
5.2.1 Port Address.............................................................................................55
5.3 Mounting HDDs.......................................................................................55
5.3.1 Mounting procedures ............................................................................... 55
5.4 Checking Operation after Installation and Preparing the HDDs
for Use...................................................................................................... 56
5.4.1 Checking initial operation........................................................................ 56
5.4.2 Formatting................................................................................................ 57
5.4.3 Setting parameters.................................................................................... 59
5.5 Dismounting HDDs.................................................................................. 62
CHAPTER 6 Diagnostics and Maintenance...................................................63
6.1 Diagnostics...............................................................................................63
6.1.1 Self-diagnostics........................................................................................ 63
6.1.2 Test programs........................................................................................... 66
6.2 Maintenance............................................................................................. 67
6.2.1 Precautions............................................................................................... 67
6.2.2 Maintenance requirements....................................................................... 68
6.2.3 Maintenance levels................................................................................... 69
6.2.4 Tools and test equipment ......................................................................... 69
8 C141-E257
Contents
6.2.5 Tests..........................................................................................................70
6.3 Operation Check .......................................................................................71
6.3.1 Initial seek operation check......................................................................71
6.3.2 Operation test............................................................................................71
6.3.3 Diagnostic test...........................................................................................71
6.4 Troubleshooting........................................................................................72
6.4.1 Outline of troubleshooting procedures .....................................................72
6.4.2 Troubleshooting with HDD replacement in the field ...............................72
6.4.3 Troubleshooting at the repair site.............................................................74
6.4.4 Troubleshooting with parts replacement in the factory............................75
6.4.5 Finding possibly faulty parts.....................................................................75
6.5 Packaging..................................................................................................76
6.5.1 Bag packaging...........................................................................................76
6.5.2 Box packaging ..........................................................................................77
CHAPTER 7 Error Analysis.............................................................................79
7.1 Sense Data Collection...............................................................................79
7.1.1 Sense data..................................................................................................79
7.1.2 Sense data format......................................................................................79
7.2 Sense Data Analysis..................................................................................81
7.2.1 Error information indicated with sense data.............................................81
7.2.2 Sense data (3-0C-03), (4-32-01), (4-40-xx), (4-C4-xx), and
(4-44-xx)...................................................................................................82
7.2.3 Sense data (1-1x-xx), (3-1x-xx) and (E-1D-00): Disk read error............82
7.2.4 Sense data (5-2x-xx), (B-47-xx), (B-4B-xx) and (B-4E-00):
interface error............................................................................................82
Glossary................................................................................................................83
Abbreviation.........................................................................................................85
Index .....................................................................................................................87
C141-E257 9
Contents
Illustrations
Figures
Figure 1.1 Example of SAS system configuration (Dual port internal
cabled environment) ...................................................................... 18
Figure 1.2 Example of SAS system configuration (Dual port internal
backplane environment)................................................................. 18
Figure 3.1
Figure 3.2 Spare area in cell............................................................................ 30
Figure 3.3 Alternate cylinder .......................................................................... 30
Figure 3.4 Track format .................................................................................. 31
Figure 3.5 Track skew/head skew................................................................... 32
Figure 3.6 Sector format .................................................................................32
Figure 3.7 Alternate block allocation by FORMAT UNIT command............37
Figure 3.8 Alternate block allocation by REASSIGN BLOCKS
Figure 4.1
Figure 4.2 HDD orientations........................................................................... 42
Figure 4.3 Mounting frame structure example................................................43
Figure 4.4 Vent hole location..........................................................................44
Figure 4.5 Surface temperature measurement points...................................... 45
Figure 4.6 Current waveform (Spin-up)..........................................................46
Figure 4.7 Current waveform (Max seek).......................................................47
Figure 4.8 AC noise filter (recommended).....................................................48
Figure 4.9 Connector location.........................................................................48
Figure 4.10 SAS plug connector overview.......................................................49
Figure 4.11 Recommended external circuit for Ready LED output.................51
Figure 6.1
Figure 6.2 Bag packaging................................................................................76
Figure 6.3 Box packaging ............................................................................... 77
Figure 6.4 Fraction packaging......................................................................... 78
Figure 7.1
Cylinder configuration...................................................................28
command........................................................................................ 38
Dimensions .................................................................................... 41
Test flowchart................................................................................70
Sense data format........................................................................... 80
10 C141-E257
Contents
Tables
Table 2.1 Model names and order numbers .................................................. 21
Table 2.2 Function specifications.................................................................. 22
Table 2.3 Environmental/Power requirements..............................................24
Table 3.1
Table 4.1
Table 4.2 Interface connector (SAS plug) signal allocation:CN1................. 50
Table 4.3 Recommended connectors............................................................. 51
Table 6.1
Table 6.2 System-level field troubleshooting................................................ 73
Table 6.3 HDD troubleshooting .................................................................... 74
Table 7.1
Format capacity............................................................................. 34
Surface temperature check point and maximum temperature....... 45
Self-diagnostic functions............................................................... 63
Definition of sense data................................................................. 81
C141-E257 11
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CHAPTER 1 General Description
1.1 Standard Features
1.2 Hardware Structure
1.3 System Configuration
This chapter describes the feature and configuration of the hard disk drives (HDDs).
The HDDs are high performance large capacity 2.5-inch hard disk drives with an embedded Serial Attached
SCSI (SAS) controller.
The interface used to connect the HDDs to the host system complies with ANSI T10/1601-D Serial Attached
SCSI-1.1 (SAS-1.1), which covers items ranging from SAS physical layers to SCSI command protocols.
The high-speed data transfer and long-distance transmission capabilities of SAS technology and the powerful
command set the HDDs facilitate creation of high-performance and highly reliable disk subsystems with large
storage capacities.
1.1 Standard Features
(1) Compactness
The HDDs are a compact enclosure which complies with the 2.5-inch hard disk drive form factor.
(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) SAS Standard
The HDDs are equipped with a serial attached SCSI (SAS) as a host interface.
• Transfer rate: 1.5Gbps, 3.0Gbps
• Number of SAS ports: Two
• Full-duplex (simultaneous bidirectional data transfer) is supported.
C141-E257 13
General Description
(4) Dual SAS port support
The HDDs have two pairs of driver and receiver set (PHY) for the SAS to support dual SAS port
connection.
On HDDs, Primary and Secondary Ports on SAS plug connector (2 physical links plus power
connections) are used for SAS port connection.
(5) High-speed data transfer
The maximum data-transfer speed on the SAS is 300.0 MB/s. The large-capacity data buffer of the
HDDs enable the effective use of such high-speed data transfers available on the SAS connection.
(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 HDDs can
perform continuous read/write operation when processing data blocks on several tracks or cylinder.
(7) Multi-segment data buffer
The data buffer is 16M bytes. Data is transferred between SAS port and disk media through this data
buffer. This feature provides the suitable usage environment for users.
(8) Cache feature
After executing the READ command, the HDDs read automatically and store (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.
When Write Cache is enabled, you should ensure that the cached data is
surely flushed to the disk media before you turn off the HDDs 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.
14 C141-E257
1.1 Standard Features
(9) Command queuing feature
The HDDs 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 HDDs can be accessed exclusively in the multi-host or multi-initiator environment by using the
reserve and release functions.
(11) Error recovery
The HDDs can try to recover from errors in 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 HDDs.
(12) Automatic alternate block reassignment
If a defective data block is detected during read or write the HDDs 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.
Error rate increase
1. The HDD format at factory shipment is generally 512 bytes.
2. The recoverable Error of the HDD might increase when the format would
be modified from 512 bytes to the following values:
516 bytes, 520 bytes, 524 bytes, 528 bytes.
3. The recoverable Error referred here is sense data (1-13-xx).
(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.
C141-E257 15
General Description
(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 SAS primitive or the SCSI command, the host system can start and stop the spindle motor.
(18) Diagnosis
The HDDs have 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 HDDs 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. 2.9 Bels at Idle. This makes it ideal for office use.
(21) Microcode downloading
The HDDs implement the microcode download feature. This feature easily achieves maintenance
and function enhancement of the HDDs.
16 C141-E257
1.2 Hardware Structure
1.2 Hardware Structure
The HDDs have a disk enclosure (DE) and a printed circuit board assembly (PCBA). The DE
includes heads on an actuator and 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 65 mm (2.56 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 spindle motor. The motor speed is controlled by
a feedback circuit using the counter electromotive current to precisely maintain 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 servo loop.
The heads are positioned on the ramp when the power is off or the spindle motor is stopped.
(5) 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.
(6) 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 SAS controller.
C141-E257 17
General Description
1.3 System Configuration
For the Serial Attached SCSI, the ANSI standard defines Point-to-Point technology. Figure 1.1 and
Figure 1.2 give examples of the SAS system configuration.
SAS Initiator
Device
or
SAS Expander
Device
SAS Initiator
Device
or
SAS Expander
Device
SATA style cable
receptacle connector
Power/LED Cable
Secondary Port
SATA style host
plug connector
SATA style cable receptacle connector
Primary Port
SAS Plug Connector
(SAS Device)
SAS Target Device
SAS Internal connection
receptacle connector
Figure 1.1 Example of SAS system configuration (Dual port internal cabled environment)
SAS Plug Connector
(SAS Device)
SAS Initlator
Device
or
SAS Expander
Device
Power/LED
Secondary port
Primary Port
SAS Backplane
receptacle connector
SAS Target Device
Figure 1.2 Example of SAS system configuration (Dual port internal backplane environment)
18 C141-E257
1.3 System Configuration
(1) Port addressing
Every device connected with the SAS protocol has a unique address (SAS address). SAS addresses
are in the Name Address Authority (NAA) IEEE Registered format defined by SCSI Primary
Command-2 (SPC-2).
An SAS address consists of 8 bytes as a unique value set for each device.
The initiator can implement an I/O operation on an HDD by using the corresponding SAS address
stored by the HDDs.
C141-E257 19
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CHAPTER 2 Specifications
2.1 Hardware Specifications
This chapter describes specifications of the HDDs.
2.1 Hardware Specifications
2.1.1 Model name and order number
Each model has different recording capacities 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
MBB2147RC CA06731-B200 SAS 147 GB (*)
MBB2073RC CA06731-B100 SAS 73.5 GB (*)
(*) One gigabyte (GB) = one billion bytes; accessible capacity will be less and actual capacity
depends on the operating environment and formatting.
Interface type Capacity
(user area)
C141-E257 21
Specifications
2.1.2 Function specifications
Table 2.2 shows the function specifications of the HDDs.
Table 2.2 Function specifications
Item
Specification
MBB2147RC MBB2073RC
Formatted capacity (*1) 147 GB (*2) 73.5 GB (*2)
Number of disks 2 1
Number of heads 4 2
Tracks per Surface
(standard format including the alternate cylinder)
85433 cyl typ.
Recording mode 60/62 MEEPRML
Areal density 124.7 Gbit/inch2
Max Recording Density 860 kBPI
Track Density 145 kTPI typ.
Seek time (*3) (Read/Write)
Track to
Track
Average 4.0 ms / 4.5 ms
0.2 ms / 0.4 ms
Full stroke 8.0 ms / 9.0 ms
Number of rotations 10,025 ± 0.1 % min
-1
(rpm)
Average latency time 2.99 ms
Start/stop time (*4)
Ready up time 15 s typ. (30 s max.)
Stop time 15 s typ.
Height 15.0 mm max.
External dimensions
Width 69.85 mm ±0.25mm
Length 100.45 mm max.
Weight 0.22 kg max.
Power consumption (*5) 4.7 W typ.
Data transfer rate (*6)
Internal 133 MB/s (standard fromat, most outer)
External 1.5 Gbps, 3.0 Gbps
Logical data block length 512 to 528 byte (fixed length) (*7)
SAS (T10/1562D Rev. 05), SAS1.1 (T10/1601D Rev. 07),
Related standards
SAM-3 (T10/1561D Rev. 14), SAM-2 (T10/1157D Rev. 24),
SPC-2 (T10/1236D Rev. 20), SBC (T10/996D Rev. 8c),
Eye mask (*8)
Data buffer 16 MB FIFO ring buffer (*9)
Acoustic noise (Idle) 2.9 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.
22 C141-E257
(*3) The seek time is as follows:
A
Seek time [ms]
2.1 Hardware Specifications
Seek difference [4096 Cly/div]
(*4) The start time is the time from power on or start command to when the HDDs are ready, and the stop
time is the time for disks to completely stop from power off or stop command.
(*5) This value indicates in idle mode. Power supply at nominal voltage ±1%. 25°C ambient.
(*6) The maximum data transfer rate may be restricted to the response speed of initiator and by
transmission characteristics. 1 MB/s = 1,000,000 bytes/s.
(*7) Refer to 1.1 (13).
(*8) The eye mask is as follows:
bsolute amplitude [V]
Normalized time [UI]
Parameter Unit 1.5Gbps 3.0Gbps
2×Z2 mVp-p 1,600 1,600
2×Z1 mVp-p 325 275
X1 UI 0.275 0.275
X2 UI 0.5 0.5
(*9) 1 MB = 1,048,576 bytes.
C141-E257
23
Specifications
2.1.3 Environmental specifications
Table 2.3 lists environmental and power requirements.
Table 2.3 Environmental/Power requirements
Temperature
(*1)
Relative
humidity
Vibration
(*2)
Shock (*2)
Altitude
Item
Specification
MBB2147RC MBB2073RC
Operating 5 to 55 °C
Non-operating –40 to 70 °C
Transport –40 to 70 °C
DE surface temperature at operating 5 to 60 °C
Gradient 20 °C/h or less
Operating 5 to 95 %RH
Non operating 5 to 95 %RH
Transport 5 to 95 %RH
Maximum wet bulb temperature 29 °C (no condensation)
Operating (*3) 0.6 mm (5 to 20Hz) / 9.8 m/s2 (1G) (20 to 300Hz) or less
Non-operating (*4) 3.1 mm (5 to 20Hz) / 49m/s2 (5G) (20 to 300Hz) or less
Transport (packaged) 3.1 mm (5 to 20Hz) / 49m/s
2
(5G) (20 to 300Hz) or less
Operating 980 m/s2 (100G) / 1 ms duration
Non-operating 3,920 m/s2 (400G) / 1 ms duration
Transport (packaged) 3,920 m/s
2
(400G) / 1 ms duration
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) 0.18A 0.16A
1.2A (peak)
1.5A (less than 100µs)
1.2A
+12V DC
Spin up
Peak operating current
Maximum (peak) DC
(*6)
Power
requirement
(*5)
Peak operating current
DC (reference) (*6)
0.38A 0.36A
Regulation ±5%
Ready (average) 0.5A
+5V DC
Peak operating current
Maximum (peak) DC
1.2A
(*6)
Peak operating current
DC (reference) (*6)
0.78A
Ripple (+5V, +12V) 250mVp-p or less (*7)
24 C141-E257
2.1 Hardware Specifications
(*1) For detail condition, see Section 4.1.
(*2) Vibration applied to the HDD 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
(*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 20MHz) is less than 100 mVp-p.
2.1.4 Error 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 10
16
bits read.
(2) Positioning error rate
Positioning errors which can be recovered by one retry should be 10 or less per 10
8
seeks.
2.1.5 Reliability
(1) Mean Time Between Failures (MTBF)
MTBF of the HDDs during its life time is 1,400,000 hours (operating: 24 hours/day, 7 days/week
average DE surface temperature: 50°C or less). Continual or sustained operation at case DE surface
temperature above 50°C may degrade product reliability.
Note:
The MTBF is defined as:
Operating time (hours) at all field sites
MTBF =
The number of equipment failures from all field sites
Failure of the equipment means failure that requires repair, adjustments, or replacement.
Mishandling by the operator, failures due to bad environmental conditions, power trouble, host
system trouble, cable failures, or other failures not caused by the equipment are not considered.
C141-E257 25
Specifications
(2) Mean Time To Repair (MTTR)
MTTR is the average time taken by a well-trained service mechanic to diagnose and repair an HDD
malfunction. The HDD is designed for a MTTR of 30 minutes or less.
(3) Service life
The service life under suitable conditions and treatment is as follows.
The service life is depending on the environment temperature. Therefore, the user must design the
system cabinet so that the average DE surface temperature is as low as possible.
• DE surface temperature: from 5°C to 40°C 5 years
• DE surface temperature: from 41°C to 45°C 4.5 years
• DE surface temperature: from 46°C to 50°C 4 years
• DE surface temperature: from 51°C to 55°C 3.5 years
• DE surface temperature: from 56°C to 60°C 3 years
• DE surface temperature: more than 60°C or No guarantee
less than 5°C (Keep the DE surface temperature
from 5°C to 60°C.)
Even if the HDDs are used intermittently, the longest service life is 5 years.
The maximum storage period without turning the power on is six months.
Note:
The "average DE surface temperature" means the average temperature at the DE surface
throughout the year when the HDDs are operating.
(4) Data security at power failure
Integrity of the data on the disk is guaranteed against all forms of DC power failure except on blocks
where a write operation is being performed. The above does not applied to formatting disks or
assigning alternate blocks.
26 C141-E257
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