Western Digital scorpio black MX375M Product manual

Technical Reference Manual
WD CONFIDENTIAL
WD7500BPKT
WD5000BPKT
WD Scorpio®Black™MX375M
SATA Hard Drives

© 2010 Western Digital Technologies, Inc.
All Rights Reserved
Information furnished by WD is believed to be accurate and reliable. No license is granted by implication or
otherwise under any patent or patent rights of WD. WD reserves the right to change specifications at any
time without notice.
Western Digital, WD, the WD logo, and WD Scorpio are registered trademarks in the U.S. and other
countries; and Data Lifeguard, CacheFlow, and FIT Lab are trademarks of Western Digital Technologies, Inc.
Other marks may be mentioned herein that belong to other companies.
Western Digital
20511 Lake Forest Drive
Lake Forest, California 92630
U.S.A.
2679-771293-A01
Document Control Number Definition:
2679-001xxx- 0xx-Px NRD
Doc Control No. Doc Revision Level
(WD Caviar Drives) Non-Released Document
Oxx = Released Version
Px = Review Cycle
WD CONFIDENTIAL

2679-771293-A01 RELEASED 11/17/10 (WD CONFIDENTIAL)
WD Scorpio Black MX375M
WD5000BPKT
WD7500BPKT
Technical Reference Manual

RELEASED 11/17/10 (WD CONFIDENTIAL) 2679-771293-A01

WD Scorpio MX375M Table of Contents
2679-771293-A01 RELEASED 11/17/10 (WD CONFIDENTIAL) i
TABLE OF CONTENTS
1. DESCRIPTION AND FEATURES ................................................................................................. 1
1.1 General Description....................................................................................................................................................................... 1
1.2 Product Features ............................................................................................................................................................................ 1
2. SPECIFICATIONS....................................................................................................................... 3
2.1 Performance Specifications ......................................................................................................................................................... 3
2.2 Physical Specifications.................................................................................................................................................................. 4
2.2.1 Physical Dimensions ...................................................................................................................................................... 5
2.3 Mechanical Specifications............................................................................................................................................................ 6
2.4 Electrical Specifications................................................................................................................................................................ 7
2.4.1 Current Requirements and Power Dissipation ........................................................................................................ 7
2.4.2 Input Voltage Requirements......................................................................................................................................... 8
2.4.3 Ripple................................................................................................................................................................................. 8
2.5 Environmental Specifications....................................................................................................................................................... 8
2.5.1 Shock and Vibration ....................................................................................................................................................... 8
2.5.2 Temperature and Humidity ........................................................................................................................................... 9
2.5.3 Thermocouple Location................................................................................................................................................. 9
2.5.4 Cooling............................................................................................................................................................................10
2.5.5 Atmospheric Pressure .................................................................................................................................................10
2.5.6 Acoustics ........................................................................................................................................................................10
2.5.7 RoHS (Restriction of Hazardous Substances) ......................................................................................................10
2.6 Reliability Specifications .............................................................................................................................................................10
2.7 Device Plug Connector Pin Definitions ...................................................................................................................................11
2.8 Agency Approvals.........................................................................................................................................................................12
2.9 Full Model Number Specification..............................................................................................................................................12
3. PRODUCT FEATURES.............................................................................................................. 13
3.1 SATA 3 Gb/s and SATA 1.5 Gb/s ..........................................................................................................................................14
3.2 Perpendicular Magnetic Recording (PMR).............................................................................................................................14
3.3 Reduced Power Spinup (RPS) .................................................................................................................................................15
3.4 System-on-Chip (SOC)..............................................................................................................................................................15
3.5 S.M.A.R.T. Command Transport (SCT)...................................................................................................................................16
3.5.1 Write Same ....................................................................................................................................................................16
3.5.2 Read/Write Long ..........................................................................................................................................................16
3.5.3 Temperature Reporting................................................................................................................................................16
3.6 Reliability Features Set................................................................................................................................................................17
3.6.1 Data Lifeguard™ ............................................................................................................................................................17
3.6.2 Thermal Management ..................................................................................................................................................17
3.6.3 Internal Environmental Protection System ..............................................................................................................18
3.6.4 Recoverable Errors.......................................................................................................................................................18
3.6.5 Unrecoverable Errors ...................................................................................................................................................18
3.6.6 Self Test ..........................................................................................................................................................................18
3.6.7 ATA Error Logging........................................................................................................................................................18
3.6.8 Defect Management.....................................................................................................................................................18
3.6.9 Automatic Defect Retirement.....................................................................................................................................19
3.6.10 Error Recovery Process...............................................................................................................................................19
3.7 Hot Plug Support..........................................................................................................................................................................20
3.7.1 Hot Plug Technical Issues ..........................................................................................................................................20
3.8 Active LED Status ........................................................................................................................................................................22
3.9 Fluid Dynamic Bearings (FDB)..................................................................................................................................................23
3.10 Staggered Spinup and Activity Indication (SATA Power Pin 11) .....................................................................................23
3.10.1 Staggered Spinup ........................................................................................................................................................23
3.10.2 Activity Indication ..........................................................................................................................................................23
3.11 CacheFlow™ ..................................................................................................................................................................................23
3.11.1 Write Cache...................................................................................................................................................................24
3.11.2 Read Cache ...................................................................................................................................................................24
3.11.3 48-bit Logical Block Addressing (LBA) ..................................................................................................................24

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Table of Contents WD Scorpio MX375M
3.12 Power Management .....................................................................................................................................................................24
3.13 Self-Monitoring, Analysis, and Reporting Technology (S.M.A.R.T.)..................................................................................24
3.14 Security Mode ...............................................................................................................................................................................25
3.14.1 Master and User Passwords ......................................................................................................................................25
3.14.2 Security Levels ..............................................................................................................................................................25
3.15 Automatic Acoustic Management (AAM)................................................................................................................................25
4. AT COMMAND SET ................................................................................................................ 26
4.1 Host Interface Commands .........................................................................................................................................................26
4.1.1 ATA-7/ATA-8 Commands ..........................................................................................................................................26
4.1.2 SATA 2.5 Commands..................................................................................................................................................27
4.1.3 Obsolete Commands...................................................................................................................................................27
4.1.4 SCT Commands ...........................................................................................................................................................28
4.2 S.M.A.R.T. (B0h)...........................................................................................................................................................................28
4.2.1 Read Attribute Values Sub-Command ....................................................................................................................28
4.2.2 Supported Attributes ...................................................................................................................................................30
4.2.3 Read Log Sector...........................................................................................................................................................31
4.2.4 Offline Data Collection ................................................................................................................................................31
4.3 Identify Device (ECh)...................................................................................................................................................................32
4.4 Set Features (EFh) ......................................................................................................................................................................38
5. INSTALLATION AND SETUP PROCEDURES............................................................................. 39
5.1 Unpacking ......................................................................................................................................................................................39
5.1.1 Handling Precautions...................................................................................................................................................39
5.1.2 Inspection of Shipping Container .............................................................................................................................39
5.1.3 Removal From Shipping Container...........................................................................................................................39
5.1.4 Removal From Static Shielding Bag.........................................................................................................................40
5.1.5 Moving Precautions......................................................................................................................................................40
5.2 Mounting Restrictions..................................................................................................................................................................40
5.2.1 Orientation......................................................................................................................................................................40
5.2.2 Screw Size Limitations ................................................................................................................................................40
5.2.3 Grounding.......................................................................................................................................................................41
5.3 Jumper Settings ............................................................................................................................................................................42
6. MAINTENANCE ........................................................................................................................ 43
7. TECHNICAL SUPPORT............................................................................................................. 44
7.1 WD Online Services ....................................................................................................................................................................44
8. GLOSSARY .............................................................................................................................. 45

2679-771293-A01 RELEASED 11/17/10 (WD CONFIDENTIAL) iii
WD Scorpio MX375M List of Figures
LIST OF FIGURES
Figure 2-1 Mounting Dimensions...........................................................................................................................................6
Figure 2-2 Typical +5V Current Draw During Spinup .....................................................................................................7
Figure 2-3 Drive Base Casting Thermocouple Location ..................................................................................................9
Figure 2-4 Forced Airflow Direction ................................................................................................................................... 10
Figure 2-5 Standard Factory Connectors ......................................................................................................................... 11
Figure 3-1 RPS Spinup Profile ............................................................................................................................................ 15
Figure 5-1 Drive Handling Precautions.............................................................................................................................. 39
Figure 5-2 Hard Drive Removal From Static Shielding Bag ......................................................................................... 40
Figure 5-3 Grounding Diagram ........................................................................................................................................... 41
Figure 5-4 Jumper Settings for WD Scorpio SATA Hard Drives ................................................................................ 42

2679-771293-A01 RELEASED 11/17/10 (WD CONFIDENTIAL) iv
WD Scorpio MX375M List of Tables
LIST OF TABLES
Table 2-1 Shock and Vibration ...............................................................................................................................................8
Table 2-2 Device Pin Connector Pin Definitions............................................................................................................. 11
Table 2-3 Full Model Number Description........................................................................................................................ 12
Table 4-1 ATA-7/ATA-8 Command Opcodes................................................................................................................. 26
Table 4-2 SATA 2.5 Command Opcodes ........................................................................................................................ 27
Table 4-3 Obsolete Command Opcodes ......................................................................................................................... 27
Table 4-4 SCT Action Codes .............................................................................................................................................. 28
Table 4-5 Definitions for the 512 Bytes. ........................................................................................................................... 28
Table 4-6 Defined Error Logging Sectors......................................................................................................................... 31
Table 4-7 Identify Device Command.................................................................................................................................. 32

WD Scorpio MX375M Description and Features
2679-771293-A01 RELEASED 11/17/10 (WD CONFIDENTIAL) 1
1.0 DESCRIPTION AND FEATURES
1.1 General Description
WD Scorpio 2.5-inch drives offer fast performance and low power consumption, making them ideal
for notebooks and other portable devices.
1.2 Product Features
Serial ATA (SATA) — Serial ATA (SATA) is the next generation bus interface for
2.5-inch hard drives. It is designed to replace Parallel ATA, and has many advantages including
increased transfer rate, improved signal integrity, enhanced data protection, and hot plug support.
Perpendicular Magnetic Recording (PMR - Writer) — With PMR technology the
magnetization of each data bit is aligned vertically to the spinning disk, rather than longitudinally
as has been the case in hard drive technology for decades. This enables more data on a given disk
than is possible with conventional longitudinal recording, and provides a platform for future
expansion of hard drive densities.
Reduced Power Spinup (RPS) — WD’s optimized start up feature specifically designed for
the external hard drive and Consumer Electronics (CE) market. Specific focus for RPS is to
minimize the duration and magnitude of the peak power consumption from the hard drive.
System-on-Chip - The System-on-Chip (SOC) is the foundation for WD's next generation
electronics and firmware architecture. The native SATA SOC lowers component count by
integrating a hard disk controller, high performance processor, high speed execution SRAM, and
read channel in a 128-pin package.
S.M.A.R.T. Command Transport (SCT) — The SCT Command Transport feature set
provides a method for a host to send commands and data to a device and for a device to send data
and status to a host using log pages.
Reliability Features Set-Data Lifeguard™ — Representing WD's ongoing commitment
to data protection, Data Lifeguard includes features that enhance the drive’s ability to prevent
data loss. Data Lifeguard data protection utilities include thermal management, an environmental
protection system, and embedded error detection and repair features that automatically detect,
isolate, and repair problem areas that may develop over the extended use of the hard drive. With
these enhanced data reliability features, the drive can perform more accurate monitoring, error
repair, and deliver exceptional data security.
Hot Plug Support — SATA supports hot plugging (also known as “hot swapping”), the ability
to swap out a failed hard drive without having to power down the system or reboot. This
capability contributes to both data availability and serviceability without any associated downtime,
making it a critical feature for extending SATA into enterprise applications.
Active LED Status — These drives support external LED requirements. It provides an activity
LED output which is ON during command execution and OFF otherwise.
Fluid Dynamic Bearings (FDB) — Bearing design that incorporates a layer of high-viscosity
lubricant instead of ball bearings in the hard drive spindle motor. As an alternative to conventional
ball bearing technology, FDB designs provide increased non-operational shock resistance, speed
control, and improved acoustics.
Staggered Spin-Up — Native SATA feature that allows the system to control whether the
drive will spin up immediately or wait until the interface is fully ready.

Description and Features WD Scorpio MX375M
2 RELEASED 11/17/10 (WD CONFIDENTIAL) 2679-771293-A01
CacheFlow™ —WD’s unique, multi-generation caching algorithm evaluates the way data
is read from and written to the drive and adapts “on-the-fly” to the optimum read and write
caching methods. CacheFlow minimizes disk seek operations and overheads due to rota-
tional latency. CacheFlow supports sequential and random write cache. With write cache
and other CacheFlow features, the user can cache both read and write data. The cache
can hold multiple writes and collectively write them to the hard drive.
48-bit Logical Block Addressing (LBA) — WD SATA drives support both 48-bit and 28-
bit LBA and CHS-based addressing. LBA is included in advanced BIOS and operating system
device drivers and ensures high capacity disk integration.
Power Management — WD SATA drives support the ATA and Serial ATA power
management command set, allowing the host to reduce the power consumption of the drive by
issuing a variety of power management commands.
Automatic Defect Retirement — If the WD SATA drive detects a defective sector while
reading, writing, or performing offline data collection, it automatically relocates the sector without
end-user intervention.
Self-Monitoring, Analysis, and Reporting Technology (S.M.A.R.T.) — S.M.A.R.T.
enables a drive’s internal status to be monitored through diagnostic commands at the host level
and during offline activities. S.M.A.R.T. devices employ data analysis algorithms that are used to
predict the likelihood of some near-term degradation or fault conditions. When used with a
S.M.A.R.T. application, the drive can alert the host system of a negative reliability status
condition. The host system can then warn the user of the impending risk of data loss and
recommend an appropriate action.
ATA Security — WD SATA drives support the ATA Security Mode Feature set. The ATA
Security Mode feature set allows the user to create a device lock password that prevents
unauthorized hard disk access even if the drive is removed from the host computer. The correct
password must be supplied to the hard drive in order to access user data. Both the User and
Master Password features are supported, along with the High and Maximum security modes. The
Master Password Revision code is also supported.
Automatic Acoustic Management (AAM) — The drive supports the Automatic Acoustic
Management feature. This feature allows the host to select the acoustic level of the hard drive.