Travelstar Z7K500.B Technical Reference Manual
HTS725050B7E630
HTS725032B7E630
HGST Hard Disk Drive Technical Reference Manual
1
Technical Reference Manual
™
HGST Travelstar Z7K500.B
Revision 1.0 (March 15, 2017)
Revision 1.1 (June 12, 2017)
One MB is equal to one million bytes, one GB is equal to one billion bytes and one TB equals
1,000GB (one trillion bytes) when referring to storage capacity. Accessible capacity will vary from
the stated capacity due to formatting and partitioning of the drive, the computer’s operating system, and other factors.
The following paragraph does not apply to any jurisdiction where such provisions are inconsistent
with local law: THIS PUBLICATION IS PROVIDED A
" S IS"WITHOUT WARRANTY OF ANY
KIND, EITHER EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
This publication could include technical inaccuracies or typographical errors. Changes are periodically made to the information herein; these changes will be incorporated in new editions of the
publication. There may be improvements or changes in any products or programs described in this
publication at any time. It is possible that this publication may contain reference to, or information
about, HGST products (machines and programs), programming, or services that are not
announced in your country. Such references or information must not be construed to mean that
Western Digital Corporation intends to announce such HGST products, programming, or services
in your country. Technical information about this product is available by contacting your local
HGST product representative or on the Internet at: support.hgst.com.
Western Digital Corporation may have patents or pending patent applications covering subject
matter in this document. The furnishing of this document does not give you any license to these patents.
© 2017 Western Digital Corporation or its affiliates.
Travelstar, Data Lifeguard and the HGST logo are registered trademarks or trademarks of Western
Digital Corporation or its affiliates in the U.S. and/or other countries. Other trademarks are the
property of their respective owners.
References in this publication to HGST-branded products, programs, or services do not imply that
they will be made available in all countries. Product specifications provided are sample specifications and do not constitute a warranty. Actual specifications for unique part numbers may vary.
Please visit the Support section of our website, support.hgst.com, for additional information on
product specifications. Pictures shown may vary from actual products.
HGST Hard Disk Drive Technical Reference Manual
2
HGST Travelstar Z7K500.B
™
Technical Reference Manual
HGST Hard Disk Drive Technical Reference Manual
3
HGST Hard Disk Drive Technical Reference Manual
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T ABLE
OF
CONTENTS
1. D ESCRIPTION
AND
F EATURES ..................................................................................................9
1.1 General Description ....................................................................................................... 9
1.2 Product Features............................................................................................................ 9
2. CHARACTERISTICS ...................................................................................................................11
2.1 Performance Characteristics ........................................................................................ 11
2.2 Physical Characteristics ............................................................................................... 12
2.2.1 Physical Dimensions ........................................................................................... 12
2.3 Mechanical Characteristics........................................................................................... 13
2.4 Electrical Characteristics .............................................................................................. 14
2.4.1 Current Requirements and Power Dissipation ..................................................... 14
2.4.2 Input Voltage Requirements................................................................................ 14
2.4.3 Ripple................................................................................................................. 14
2.4.4 ESD..................................................................................................................... 14
2.5 Environmental Characteristics...................................................................................... 15
2.5.1 Shock and Vibration............................................................................................ 15
2.5.2 Temperature and Humidity ................................................................................. 16
2.5.3 Thermocouple Location ...................................................................................... 16
2.5.4 Cooling .................................................................................................................................17
2.5.5 Atmospheric Pressure ......................................................................................... 17
2.5.6 Electromagnetic Field/Magnetic Field Immunity ...................................................................18
2.5.7 Operating Drive DC Magnetic Field Susceptibility ................................................................18
2.5.8 Acoustics............................................................................................................ 18
2.5.9 RoHS (Restriction of Hazardous Substances) ....................................................... 18
2.6 Reliability Specification and Characteristics ................................................................. 19
2.7 Device Plug Connector Pin Definitions ......................................................................... 19
2.8 Agency Approvals ........................................................................................................ 21
2.9 Full Model Number Specification.................................................................................. 21
3. P RODUCT F EATURES ...............................................................................................................22
3.1 SATA 6 Gb/s................................................................................................................ 23
3.2 Advanced Format (AF).................................................................................................. 23
3.3 Perpendicular Magnetic Recording (PMR) ..................................................................... 23
3.4 Reduced Power Spinup (RPS) ........................................................................................ 24
3.5 System-on-Chip (SOC) .................................................................................................. 24
3.6 S.M.A.R.T. Command Transport (SCT) .......................................................................... 25
3.6.1 Temperature Reporting....................................................................................... 25
3.7 Reliability Features Set................................................................................................. 26
3.7.1 Data Lifeguard™ ................................................................................................. 26
3.7.2 Thermal Management ......................................................................................... 26
3.7.3 Internal Environmental Protection System ...........................................................................27
3.7.4 Recoverable Errors.............................................................................................. 27
3.7.5 Unrecoverable Errors .......................................................................................... 27
3.7.6 Self Test ............................................................................................................. 27
3.7.7 ATA Error Logging .............................................................................................. 27
3.7.8 Defect Management............................................................................................ 27
3.7.9 Automatic Defect Retirement .............................................................................. 28
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3.7.10 Error Recovery Process...................................................................................... 28
3.8 Hot Plug Support ......................................................................................................... 28
3.9 Active LED Status ......................................................................................................... 30
3.10Fluid Dynamic Bearings (FDB) ..................................................................................... 30
3.11Staggered Spinup and Activity Indication (SATA Power Pin 11) .................................... 30
3.11.1 Staggered Spinup ............................................................................................. 30
3.11.2 Activity Indication ............................................................................................. 30
3.12CacheFlow™ ............................................................................................................... 30
3.12.1 Write Cache ...................................................................................................... 31
3.12.2 Read Cache....................................................................................................... 31
3.12.3 48-bit Logical Block Addressing (LBA) ............................................................... 31
3.13Power Management .................................................................................................... 31
3.14Self-Monitoring, Analysis, and Reporting Technology (S.M.A.R.T.) ............................... 32
3.15Security Mode ............................................................................................................ 32
3.15.1 Master and User Passwords .............................................................................. 32
3.15.2 Security Levels .................................................................................................. 32
4. AT COMMAND S ET ................................................................................................................33
4.1 Host Interface Commands ........................................................................................... 33
4.1.1 ATA-7/ATA-8 Commands.................................................................................... 33
4.1.2 SATA Commands ................................................................................................ 34
4.1.3 Obsolete Commands .......................................................................................... 34
4.1.4 SCT Commands ...................................................................................................................35
4.2 S.M.A.R.T. (B0h) ........................................................................................................... 35
4.2.1 Read Attribute Values Sub-Command.................................................................. 35
4.2.2 Supported Attributes.............................................................................................................37
4.2.3 Read Log Sector...................................................................................................................38
4.3 Identify Device (ECh).................................................................................................... 39
4.4 Set Features (EFh) ....................................................................................................... 46
5. I NSTALLATION
AND
S ETUP P ROCEDURES ............................................................................47
5.1 Unpacking ................................................................................................................... 47
5.1.1 Handling Precautions.......................................................................................... 47
5.1.2 Inspection of Shipping Container..........................................................................................48
5.1.3 Removal From Shipping Container ...................................................................... 48
5.1.4 Removal From Static Shielding Bag ..................................................................... 48
5.1.5 Moving Precautions ............................................................................................ 48
5.2 Bare Drive Handling External Force .............................................................................. 49
5.3 Mounting Restrictions.................................................................................................. 49
5.3.1 Orientation ......................................................................................................... 49
5.3.2 Screw Type and Screw Length Limitations ........................................................... 49
5.3.3 Grounding.............................................................................................................................50
5.4 Jumper Settings ........................................................................................................... 51
6. M AINTENANCE .........................................................................................................................52
7. GLOSSARY ................................................................................................................................53
HGST Hard Disk Drive Technical Reference Manual
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L IST
OF
Figure 2-1
Figure 2-2
Figure 2-3
Figure 2-4
Figure 2-5
Figure 3-1
Figure 5-1
Figure 5-2
Figure 5-3
Figure 5-4
F IGURES
Mounting Dimensions ................................................................................................................................13
Drive Base Casting Thermocouple Location .............................................................................................16
Forced Airflow Direction ...........................................................................................................................17
Operating Drive DC magnetic Field Susceptibility ...................................................................................18
Standard Factory Connectors .....................................................................................................................19
RPS Spinup Profile.....................................................................................................................................24
Drive Handling Precautions .......................................................................................................................47
Hard Drive Removal From Static Shielding Bag.......................................................................................48
Grounding Diagram....................................................................................................................................50
Jumper Settings ..........................................................................................................................................51
HGST Hard Disk Drive Technical Reference Manual
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L IST
OF
Table 2-1
Table 2-2
Table 2-3
Table 4-1
Table 4-2
Table 4-3
Table 4-4
Table 4-5
Table 4-6
Table 4-7
T ABLES
Shock and Vibration ....................................................................................................................................15
Device Pin Connector Pin Definitions.........................................................................................................19
Full Model Number Description..................................................................................................................21
ATA-7/ATA-8 Command Opcodes ............................................................................................................33
Optional Subcommands ..............................................................................................................................34
Obsolete Command Opcodes ......................................................................................................................34
SCT Action Codes .......................................................................................................................................35
Definitions for the 512 Bytes.......................................................................................................................35
Log Address Definition ...............................................................................................................................38
Identify Device Command...........................................................................................................................39
HGST Hard Disk Drive Technical Reference Manual #
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1.0
DESCRIPTION
1.1
AND
FEATURES
General Description
HGST Travelstar 2.5 inch hard drives combine a high performance 7200 RPM spin speed, 32 MB
cache and SATA 6 Gb/s interface for the ultimate in power computing for notebooks.
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.
Advanced Format (AF) — Technology adopted by HGST and other drive manufacturers to
increase media format efficiencies, thus enabling larger drive capacities.
Perpendicular Magnetic Recording (PMR) — 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) — HGST’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 HGST'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 HGST'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.
HGST Hard Disk Drive Technical Reference Manual
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





CacheFlow™ —HGST’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 rotational 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) — HGST 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 — HGST 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 HGST 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 — HGST 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.
HGST Hard Disk Drive Technical Reference Manual
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2.0
CHARACTERISTICS
2.1
Performance Characteristics
Average Seek1
- Read
- Write
12.0 ms average
14.0 ms average
Rotational Speed
7200 RPM
(maximum)2
Data Transfer Rate
- Interface Speed
- Sustained data transfer rate at OD
6 Gb/s
163 MB/s
Buffer Size
32 MB
Error Rate - Unrecoverable
<1 in 1014 bits read
Spindle Start Time
- From Power-on to Drive Ready 3
- From Power-on to Rotational
Speed 4
3.8s average
2.0s average
Spindle Stop Time
8s average
Load/Unload Cycles5
600,000
1 During continuous Seek, Read, or Write commands, an algorithm in the code will add latency as required to keep
the VCM motor from overheating. Seek performance will be impacted under this condition.
2 As used for storage capacity, one megabyte (MB) = one million bytes, one gigabyte (GB) = one billion bytes, and
one terabyte (TB) = one trillion bytes. Total accessible capacity varies depending on operating environment. As
used for buffer or cache, one megabyte (MB) = 1,048,576 bytes. As used for transfer rate or interface, megabyte
per second (MB/s) = one million bytes per second, and gigabit per second (Gb/s) = one billion bits per second.
Effective maximum SATA 6 Gb/s transfer rate calculated according to the Serial ATA specification published by
the SATA-IO organization as of the date of this specification sheet. Visit www.sata-io.org for details.
3 Defined as the time from power-on to the setting of Drive Ready and Seek Complete including calibration.
4 Defined as the time from power-on to when the full spindle rotational speed is reached.
5 Controlled unload at ambient condition.
HGST Hard Disk Drive Technical Reference Manual
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2.2
Physical Characteristics
Physical
Specifications
HGST HTS725050B7E630
HGST HTS725032B7E630
Capacity1
500,107MB
320, 072MB
Interface
SATA 6 Gb/s
SATA 6 Gb/s
Rotary Voice Coil
Rotary Voice Coil
1
1
Actuator Type
Number of Disks
Physical bytes per Sector
4096
4096
Host bytes per Sector
512
512
User Sectors per Drive
976,773,168
625,142,448
Embedded
Embedded
LDPC Target
LDPC Target
Servo Type
Recording Method
1 As
used for storage capacity, one megabyte (MB) = one million bytes, one gigabyte (GB) = one billion bytes,
and one terabyte (TB) = one trillion bytes. Total accessible capacity varies depending on operating
environment. As used for buffer or cache, one megabyte (MB) = 1,048,576 bytes. As used for transfer rate or
interface, megabyte per second (MB/s) = one million bytes per second, and gigabit per second (Gb/s) = one
billion bits per second. Effective maximum SATA 6 Gb/s transfer rate calculated according to the Serial ATA
specification published by the SATA-IO organization as of the date of this specification sheet. Visit www.sataio.org for details.
2.2.1
Physical Dimensions
English
Metric
Dimension
Tolerance
Height
0.27 inches
±0.01 inch
6.8 mm
±0.20 mm
Length
3.94 inches
±0.01 inch
100.20 mm
±0.25 mm
Width
2.75 inches
±0.01 inch
69.85 mm
±0.25 mm
0.20 lb
—
92 gm
—
Weight
(typical)
HGST Hard Disk Drive Technical Reference Manual
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Dimension
Tolerance
2.3
Mechanical Characteristics
Figure 2-1 shows the mounting dimensions and locations of the screw holes for the drive.
Figure 2-1. Mounting Dimensions
HGST Hard Disk Drive Technical Reference Manual
13
2.4
Electrical Characteristics
2.4.1
Current Requirements and Power Dissipation
Operating Mode
Power 1
Current1
5 VDC
Spinup (max)
1.1A
5.5W
Read (average)
400 mA
2.0W
Write (average)
400 mA
2.0W
Seek (average)
420 mA
2.1W
POWER MANAGEMENT COMMANDS
Operating Mode
Power 1
Current 1
5 VDC
Idle - Performance Mode
(average)
370 mA
1.85W
Idle - Active Mode (average)
237 mA
1.18W
Idle - Low Power Mode (average)
170 mA
0.85W
Standby (average)
50 mA
0.25W
Sleep (average)
50 mA
0.25W
1
All values are typical (25°C and 5V input) except where specified as maximum.
2.4.2
Input Voltage Requirements
The input voltage requirement for these drives is +5.0V ± 5%.
2.4.3
Ripple
+5 VDC
Maximum
Frequency
2.4.4
100 mV (peak-to-peak)
10 KHz - 30 MHz
ESD
The ESD specification compliance is determined at room ambient conditions with nominal power
supply settings, unless otherwise specified.
Op-System Level
Minimum
Direct contact discharges
8 kV
Direct air discharges
15 kV
Indirect contact discharges (VCP & HCP)
8 kV
Indirect air discharges (VCP & HCP)
15 kV
Non-Op Drive Level
Direct contact discharges
8 kV
Direct air discharges
15 kV
HGST Hard Disk Drive Technical Reference Manual
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2.5
Environmental Characteristics
2.5.1
Shock and Vibration
Table 2-1. Shock and Vibration
Shock
Operating (2 ms)
400G
Non-operating (2 ms)
1000G
Note: Half-sine wave, measured without shock isolation and without non-recoverable errors.
Vibration
Operating1
0.063g2/Hz, 5Hz-40Hz; 0.063g2/Hz-0.0006g2/Hz, 40Hz-500Hz
Non-operating2
0.06984 g2/Hz, 10-500 Hz
1
2.2 Grms, measured using random write/read ratio of 1:3 at block size of 256
2
5.8 Grms
Drive Generated Vibration
Operating (average)
0.17 gm-mm
Rotational Shock
Operating (2 ms)
3.5K rad/sec2
Non-operating (2 ms)
50K rad/sec2
Operating Vibration
Drives are tested by applying a random or swept sinusoidal excitation in each linear axis, one axis
at a time. The drive incurs no physical damage and no hard errors while operating and subjected to
continuous vibration not exceeding the level listed in Table 2-1. Operating performance may
degrade during periods of exposure to continuous vibration.
Non-Operating Vibration
Note: This specification applies to handling and transportation of unmounted drives.
Drives are tested by applying a random or swept sinusoidal excitation in each linear axis, one axis
at a time. The drive incurs no physical damage when subjected to continuous vibration not
exceeding the level listed in Table 2-1.
Drive Generated Vibration
Drives are tested by supporting a single drive horizontally in a free-free state and measuring the
side-to-side vibration. Self vibration may not exceed the level listed in Table 2-1.
Rotational Shock Non-Operating
Drives are tested by applying a rotational force centered around the actuator pivot. The drive incurs
no physical damage when subjected to the rotational force specified in Table 2-1.
Packaged Shock and Vibration
The shipping packaging is designed to meet the National/International Safe Transit Association
(N/ISTA) standards for packaged products. The drive incurs no physical damage when subjected to
the N/ISTA standards.
HGST Hard Disk Drive Technical Reference Manual
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2.5.2
Temperature and Humidity
Operation
Min-Max Base Casting
Temperature1
0C to 60C (32°F to 140°F)
Humidity
8-90% RH non-condensing
29.4C (maximum wet bulb)
Thermal Gradient
20C/hour (maximum)
Humidity Gradient
20%/hour (maximum)
Non-operating Temperature
-40°C to 65°C (-40°F to 149°F)
Humidity
5-95% RH non-condensing
40C (maximum wet bulb)
Thermal Gradient
30C/hour (maximum)
Humidity Gradient
20%/hour (maximum)
Non-Operation
1
The system environment must allow sufficient air flow to limit maximum base casting temperatures as defined in
Figure 2-2 below.
2.5.3
Thermocouple Location
Component
Location
Drive base casting
Figure 2-2. Drive Base Casting Thermocouple Location
HGST Hard Disk Drive Technical Reference Manual
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#1, Figure 2-2
2.5.4
Cooling
If forced air cooling is required, the drive must be positioned to receive airflow from one or more
fans as indicated in Figure 2-3.
Figure 2-3. Forced Airflow Direction
2.5.5
Atmospheric Pressure
Altitude
Operating
-1,000 feet to 10,000 feet (-305m to 3,048m)
Non-operating
-1,000 feet to 40,000 feet (-305m to 12,192m)
HGST Hard Disk Drive Technical Reference Manual
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2.5.6
Electromagnetic Field/Magnetic Field Immunity
Test Level
Frequency Range
5 V/m
100 Khz to 200 MHz
5 Gauss
DC to .200 MHz
1 Gauss
.200 Mhz to .400 MHz
.005 Gauss
.400 Mhz to 20 MHz
2.5.7
Operating Drive DC Magnetic Field Susceptibility
Drive level operational magnetic DC field susceptibility:

160 Gauss outside shaded area

40 Gauss inside shaded area in all magnetic field directions
Figure 2-4. Operating Drive DC magnetic Field Susceptibility
2.5.8
Acoustics
TYPICAL SOUND POWER LEVEL 1
Idle Mode (average dBA) 2
23
Seek Mode (average dBA) 3
25
1
2
3
Measured per ECMA-74/ISO 7779.
No audible pure tones.
Random seek at a rate of 26 seeks per second.
2.5.9
RoHS (Restriction of Hazardous Substances)
HGST hard drive products manufactured and sold worldwide after June 8, 2011, meet or exceed
Restriction of Hazardous Substances (RoHS) compliance requirements as mandated by the RoHS
Directive 2011/65/EU. RoHS aims to protect human health and the environment by restricting the
use of certain hazardous substances in new equipment, and consists of restrictions on lead,
mercury, cadmium, and other substances.
HGST Hard Disk Drive Technical Reference Manual
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2.6
Reliability Specification and Characteristics
The average Annualized Failure Rate (AFR) calculations assumes the reliability characteristics below.
If the system(s) that the drive is installed in are not capable of meeting the characteristics listed
below, please use a HGST drive that matches your system(s)' capability. Operating drives outside
any of the reliability characteristics below will result in a higher AFR.
Reliability Specification
Average AFR over the Limited Warranty Period
Reliability Characteristics
Base Casting Temperature
40°C
Annual Power on Hours (POH)
<=3120
Device Plug Connector Pin Definitions
The drive interfaces with the host I/O bus via the SATA interface connection, and receives power
from the SATA power connection, illustrated in Figure 2-5 below. Table 2-2 identifies the pin
definitions of the SATA connectors and the corresponding signal names and signal functions.
Figure 2-5. Standard Factory Connectors
Table 2-2. Device Pin Connector Pin Definitions
Signal segment
2.7
0.50%
S1
Gnd
2nd mate
S2
A+
Differential signal pair A from Phy
S3
A-
S4
Gnd
2nd mate
S5
B-
Differential signal pair B from Phy
S6
B+
S7
Gnd
2nd mate
Key and spacing separate signal and power segments
HGST Hard Disk Drive Technical Reference Manual
19
Power segment
P1
Reserved
Connected to P2
P2
Reserved
Connected to P1
P3
Reserved
NOT CONNECTED
P4
Gnd
1st mate, GROUND
P5
Gnd
2nd mate, GROUND
P6
Gnd
2nd mate, GROUND
P7
V5
5V power, Precharge, 2nd mate
P8
V5
5V power
V5
2nd mate, 5V power
P10
Gnd
2nd mate, GROUND
P11
ACT-
Activity LED- (O.D.)/Staggered Spin-up Disable Control
P12
Gnd
1st mate, GROUND
P13
V12
12 V power, pre-charge, 2nd mate, NOT CONNECTED
P14
V12
12 V power, NOT CONNECTED
P15
V12
12 V power, NOT CONNECTED
P9
HGST Hard Disk Drive Technical Reference Manual
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2.8
Agency Approvals
Travelstar Z7K500.B Regulatory Number (R/N): 800018
These drives meet the standards of the following regulatory agencies:






2.9
Underwriters Laboratories: Bi-National UL Standard CAN/CSA-C22.2 No. 60950/UL
60950-1. Standard for Safety of Information Technology Equipment, including Electrical
Business Equipment (File E101559).
TUV NORD CERT GmbH: IEC 60950-1 per EN 60950-1, Standard for Safety of
Information Technology Equipment, including Electrical Business Equipment. IEC 60065.
Standard of Safety for Audio, Video, and Similar Electronic Apparatus.
CE Compliance for Europe: Complies with EN 55022: 2010 RF/ Conducted Emissions and
EN 55024: 2010 Immunity requirements. Including EU Directive 2011/65/EU RoHS II
requirements.
C-Tick Compliance for Australia: Verified to comply with AS/NZS CISPR 22 for RF
Emissions as required by the Australian Communications Authority.
Korean KC Mark: Registered as a Class-B product with the South Korean Ministry of
Information and Communication.
Taiwan BSMI EMI Certification: Certified as a Class-B product with the Bureau of
Standards Metrology and Inspection (BSMI).
Full Model Number Specification
Table 2-3 below provides a summary specification of the model number suffix for this product
platform.
Table 2-3. Full Model Number Description
Model Number Format
Product
Brand
RPM
Description
HTS725032B7E630
HGST Travelstar
7200
Z7K500.B 32 MB SATA 6 Gb/s AF
HTS725050B7E630
HGST Travelstar
7200
Z7K500.B 32 MB SATA 6 Gb/s AF
HGST Hard Disk Drive Technical Reference Manual
21
3.0
P RODUCT F EATURES

SATA 6 Gb/s

Advanced Format (AF)

Perpendicular Magnetic Recording (PMR)

Reduced Power Spinup (RPS)

System-on-Chip (SOC)

S.M.A.R.T. Command Transport (SCT)

Reliability Features Set—Data Lifeguard™

Hot Plug Support

Active LED Status

Fluid Dynamic Bearings (FDB)

Staggered Spin-Up and Activity Indication (SATA Power Pin 11)

CacheFlow™

48-bit Logical Block Addressing (LBA)

Power Management

Self-Monitoring, Analysis, and Reporting Technology (S.M.A.R.T.)

Security Mode
HGST Hard Disk Drive Technical Reference Manual
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3.1
SATA 6 Gb/s
SATA 6 Gb/s is the next generation interface for SATA hard drives. It adds to the functionality of
the SATA 1.5 Gb/s interface with the following features:

Improved Power Management— provides improved power management features including
Host Initiated SATA Power Management (HIPM) and Device Initiated SATA Power
Management (DIPM).

Staggered Spin-up — allows the system to control whether the drive will spin up immediately
or wait until the interface is fully ready before spinning up.

Asynchronous Signal Recovery (ASR) — robustness feature that improves signal recovery.

Enclosure Services — defines external enclosure management and support features.

Backplane Interconnect — defines how to lay out signal line traces in a backplane.

Auto-activate DMA — provides increased command efficiency through automated activation
of the DMA controller.

Device Configuration Overlay (DCO) — allows hiding of supported features via a SATA
feature mask.
3.2
Advanced Format (AF)
Advanced Format (AF) technology is adopted by HGST and other drive manufacturers to increase
media format efficiencies, thus enabling larger drive capacities.
In Advanced Format, each physical sector is composed of eight 512 byte logical sectors, totaling
4096 bytes. HGST is shipping Advanced Format drives as 512 Byte Emulated Devices until full
operating system support for the Advanced Format host interface is available. 512 Byte Emulated
Device drives are backward compatible with 512 byte sector accesses.
3.3
Perpendicular Magnetic Recording (PMR)
In perpendicular magnetic recording (PMR), 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. In longitudinal recording, as the bits become smaller and closer together, they experience
an increasing demagnetizing field, much like two bar magnets that are placed end-to-end repel one
another. A property of the media called coercivity must be increased to counteract the
demagnetization to keep the bits stable under thermal fluctuations; otherwise data corruption may
occur over time. Higher media coercivity has pushed the recording head write field to the limit of
known materials.
In perpendicular recording, the adjacent bits attract instead of repel (as with bar magnets placed
side by side,) creating more thermally stable bits. In addition, the media contains a magnetically
soft underlayer (SUL) beneath the recording layer. This SUL allows a larger effective write field,
thus higher coercivity media, enabling further increases in density. Lastly, because of the vertical
orientation of the bits, the PMR recording layer tends to be thicker than that used for longitudinal
recording, providing increased signal for the read heads. All of these benefits enable HGST
engineers to reliably pack more data on a given disk than is possible with conventional longitudinal
recording.
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3.4
Reduced Power Spinup (RPS)
Applications for 2.5-inch hard drives include USB external hard drives, notebook systems, and
Consumer Electronics (CE). Due to the fact that many of these applications are portable in nature,
an option for limiting startup current levels and increasing spinup speed is necessary.
To address this requirement, HGST has developed Reduced Power Spinup (RPS) mode.
RPS-enabled drives use minimal power consumption during spin up, allowing a greater range of
compatibility with various systems and cables in the marketplace.
RPS mode is set via jumper. See figure 5-4 more information.
Figure 3-1. RPS Spinup Profile
mA
mA
mA
mA
mA
Seconds
3.5
System-on-Chip (SOC)
The System-on-Chip (SOC) is the foundation for HGST'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.
The processor has a 5-stage pipeline which can execute instructions in a single cycle and a DSP
engine for enhanced operations. The SOC has on-chip tightly coupled memory for high speed code
and data execution that maximizes the processing bandwidth for timing critical operations. It has a
high performance disk controller that incorporates maximum flexibility, modularity, performance,
and low power consumption. The read/write channel has advanced detection capabilities for highdensity drives.
HGST Hard Disk Drive Technical Reference Manual
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3.6
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. Standard ATA
commands may be interspersed with SCT commands, but SCT commands cannot be nested. SCT
commands that do not require a subsequent data transfer operation are not interspersed with any
ATA commands or each other.
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. This capabilitility is
used to pass commands through a driver interface or a bridge where new or unknown commands
may be filtered and not passed to the drive. SCT is also used for issuing commands that require
more than 8 parameter bytes. ATA8-ACS provides detailed information on the usage and
capabilities of SCT. The SCT feature set includes the following command:

Temperature Reporting
3.6.1
Temperature Reporting
The SCT Temperature Reporting (SCT TR) feature allows a host system to access temperature
information in the drive. This information can been used to control fans or adjust the usage of
various system components to keep the drive within its normal operating temperature. Applications
include Enterprise, Laptop, Desktop and Consumer Electronics. SCT TR reports the maximum and
minimum sustained operating limits, warning level limits, and drive damage limits. In addition to
reporting the limits, SCT TR returns the current drive temperature (a temperature history which the
host can use to predict heating or cooling trends) and the maximum temperature acheived during
the lifetime of the drive as well as the highest temperature achieved since the power was applied to
the drive. Detailed information on this capability can be found in ATA8-ACS.
HGST Hard Disk Drive Technical Reference Manual
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3.7
Reliability Features Set
3.7.1
Data Lifeguard™ 1
Representing HGST'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.
This self-tuning feature is performed during offline data collection scan. All user sectors on the
hard drive are scanned during times of no activity from the host. Any sector determined to be
written poorly (e.g., off-track), or that is difficult to recover (e.g., because of a developing media
defect or thermal asperity), is marked for repair. Data Lifeguard actively guards your data, even if
S.M.A.R.T. operations are disabled.
All HGST drives are defect-free and low-level formatted at the factory. After prolonged use, any
drive, including a HGST drive, may develop defects. If you continue receiving data errors in any
given file, use the Data Lifeguard Diagnostics utility to recover, relocate and rewrite the user data
to the nearest spare sector and maintain a secondary defect list.
CAUTION:As with all format utilities, some options in the Data Lifeguard Diagnostics
utility will overwrite user data.
3.7.2
Thermal Management
The drive is designed with Thermal Management features for high reliability.

State-of-the-art mechanical design—Mechanical design is optimized to reduce the drive’s
temperature. State-of-the-art thermal dissipation and windage design is employed.

Closed loop servo management—Thermal management monitors the drive temperature and
can control servo operations to maintain a stable operating temperature under high temperature
conditions. This is a closed loop servo and thermal control system.

S.M.A.R.T. HDA Temperature Attribute—The S.M.A.R.T. HDA Temperature Attribute is
supported.

Ducted airflow—Provides protection to the Read/Write element from heated air.
1 Default shipping configuration has Data Lifeguard feature disabled for power management
optimization.
HGST Hard Disk Drive Technical Reference Manual
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3.7.3
Internal Environmental Protection System
This system protects the inside environment of the drive from contamination. System features
include:

Filtration System to ensure fast clean-up times

Directed airflow to maximize mechanical cooling

Increase casting surface area to maximize cooling

Ducted air flow to protect read/write elements from heated air

Breather filter located at low pressure area

Enhanced heat dissipation
3.7.4
Recoverable Errors
A sector marked for repair is written back to the same location. The sector is then read several
times to be sure that it was written correctly and that there is no media damage at its location (sector
test). If the sector does not easily and consistently read correctly, the sector is then relocated with
original data.
3.7.5
Unrecoverable Errors
If an unrecoverable error is found during the offline scan, the sector is marked. Future reads from
this location will continue to perform full error recovery. However, the next write to this location
will perform a sector test to be sure the media is not damaged, and the sector relocated if the sector
test fails.
3.7.6
Self Test
Self Test is a quick way to determine the operation status of a drive. The following Self Tests are
supported:

Quick Test: Completes in less than two minutes.

Extended Test: Tests all the critical subsystems of the drive.

Conveyance Test: Quickly identifies issues caused by handling damage.

Selective Test: Scans host-defined sections of the drive.
The test may be run to completion or be performed as a background task as the drive processes
other commands from the host. The host may then poll the drive for runtime status and test results.
Since the test is embedded in the drive’s firmware, it is always available, requires no installation
and can be faster and more effective than a software-based drive test.
3.7.7
ATA Error Logging
ATA Error Logging provides an industry standard means to record error events and supporting
information that is then accessible by the host. The event record includes the exact command that
caused the failure, the response of the drive, the time of the event and information about the four
commands immediately prior to the errant command. Error Logging can reliably and quickly
determine whether a system problem is the result of a hard drive failure or other component
malfunction. Error Logging retains total error count for the life of the drive and complete records
for the last five errors.
3.7.8
Defect Management
Every HGST drive undergoes factory-level intelligent burn in, which thoroughly tests for and maps
out defective sectors on the media before the drive leaves the manufacturing facility. Following the
factory tests, a primary defect list is created. The list contains the cylinder, head, and sector
numbers for all defects.
HGST Hard Disk Drive Technical Reference Manual
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Defects managed at the factory are sector slipped. Grown defects that can occur in the field are
mapped out by relocation to spare sectors on the inner cylinders of the drive.
3.7.9
Automatic Defect Retirement
The automatic defect retirement feature automatically maps out defective sectors while reading or
writing. If a defective sector appears, the drive finds a spare sector.
The following item is specific to automatic defect retirement on writes (write auto-relocation):

Data is always written to disk (using automatic defect retirement if required) and no error is
reported.
The following item is specific to automatic defect retirement on reads (read auto-relocation):

When host retries are enabled, the drive will internally flag any unrecoverable errors (DAMNF
or ECC). This flagging allows subsequent write commands to this location to relocate the
sector only if the sector test fails.
3.7.10 Error Recovery Process
The drive has the following means of Error Recovery:

One-the-Fly Recovery: Using LDPC's internal recovery mechanism with Global and Local
Iteration for Error Recovery and Correction. This recovery is real time and does not require
any additional re-reads for the correction.

Simple Firmware Assist Recovery: Single variable re-reads involving off-track recoveries and
synch mark retires.

Extended Firmware Assist Recovery: This retry procedure will step through a combination of
positive/negative track offsets and VGA DAC manipulations to recover the data. In addition,
further retries will also involve Low Pass Filter (FIR) manipulations, Timing recovery, and
Synch Error Recoveries deeper into the retry process. Furthermore, in specific retry steps
Hardware assist is also involved for Extended Retry involving more modification of FIR filters
& Erasure Sweep.

LDPC Erasure Sweep Correction: This step sweeps the entire data stream with a Erasure
Length and a Sliding Window, both programmable, to maximize the correction capability.
When an extended retry operation is successful, the controller continues with the command. The
controller clears any changes during the F/W Assist Recovery before commencing to the next
operation.
3.8
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.
HGST SATA drives support hot plugging only in systems where a SATA hard drive storage
backplane is used.
The Serial ATA revision 2.5 specification requires staggered pins for both the hard drive and drive
receptacles. Staggered pins mate the power signals in the appropriate sequences required for
powering up the hot plugged device. These pins are also specified to handle in excess of the
maximum allowed inrush current that occurs during drive insertion. SATA-compliant devices thus
need no further modification to be hot pluggable and provide the necessary building blocks for a
robust hot plug solution, which typically includes:

Device detection even with power downed receptacles (typical of server applications).

Pre-charging resistors to passively limit inrush current during drive insertion.
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
Hot plug controllers to actively limit inrush current during drive insertion.
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3.9
Active LED Status
The drive supports external LED requirements. It provides an activity LED output which is ON
during command execution and OFF otherwise.
The drive strength of this open drain drive active signal is that it can sink 12mA to 0.4V Max. It is
5V tolerant, meaning that the external LED may be driven from +5V or +3.3V so long as the Host
system provides a series resistor to limit the LED current to the lower of 12mA or the rated
operating current of the LED. As an example with +5V and a 2 volt forward drop across a 10mA
LED, a 300 Ohm 5% 1/16W resistor would be suitable. In the case of a 3.3V supply for the same
LED, the resistor would be 130 Ohm 5% 1/16W.
The pin corresponding to P11 shall be used for Active LED (see “Device Pin Connector Pin
Definitions” on page 19).
3.10 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.
3.11 Staggered Spinup and Activity Indication (SATA Power Pin 11)
SATA device power connector pin 11 (see “Standard Factory Connectors” on page 19) is defined
as a means by the host to DISABLE staggered spinup and it may also be used by the device to
provide the host with an activity indication. According to the SATA II specs, "Staggered Spin-up
Disable and Activity Signal shall not be enabled at the same time."
3.11.1 Staggered Spinup
When multiple disks are installed in an enclosure, it is desirable to provide a simple mechanism by
which a subsystem controller can sequence hard drive initialization to minimize the current load
presented during power up. Staggered spinup provides this mechanism by preventing the hard
drives from spinning up until after successful PHY initialization (i.e., after PHY enters
DP7:DR_Ready state).
Staggered spinup is only applicable during initial power-up. If a drive is spun down using ATA
commands—as a result of having been placed in Standby or Sleep power modes, for example—the
drive shall spin up following the rules that govern spinup from low power modes described in
ATA/ATAPI-6 or later.
3.11.2 Activity Indication
The host controller through SATA power pin 11 may access storage device status and activity. The
signal provided by the device for activity indication is a low-voltage low-current signal. It is not
suitable for directly driving an LED. A buffer circuit external to the device must be employed to
drive the LED. The activity signal is based on an open-collector or open-drain active low driver.
The device shall tolerate the activity signal being shorted to ground.
3.12 CacheFlow™
CacheFlow is HGST’s unique, multi-generation disk caching system. It incorporates read cache
with write cache.
HGST designed CacheFlow to obtain maximum performance with today’s most popular operating
systems and applications. CacheFlow increases performance over prior caching algorithms by
increasing the number of times that requested data is in the cache. This reduces the number of host
commands that require actual media access thereby improving overall drive performance.
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Typical applications perform a variety of access patterns, such as random, sequential, and
repetitive. CacheFlow is designed to dynamically adapt to the changes in access patterns that occur
during the course of application execution.
Random mode is the default operational mode for CacheFlow. Once CacheFlow detects a
sequential access pattern, it leaves random mode. CacheFlow also performs predictive read
operations to increase the probability that data requested in future commands already exists in the
cache.
CacheFlow partitions the buffer into multiple segments to allow for the fact that applications may
access multiple non-contiguous areas on the disk. CacheFlow tracks the amount of valid data in
each segment and controls the deallocation of segments to maximize drive performance.
3.12.1 Write Cache
CacheFlow is designed to improve both single and multi-sector write performance by reducing
delays caused by seek time and rotational latency.
The write cache adaptively detects random and sequential access patterns during application
execution.
If a defective sector is found during a write cache operation, that sector is automatically relocated
before the write occurs.
3.12.2 Read Cache
CacheFlow implements a multiple segment read cache. Cache segments are assigned to read
commands as they are received from the host.
Each read segment consists of pre and post read sectors in addition to the host-requested sectors.
This maximizes the amount of cache data in the drive’s buffer, thereby increasing the likelihood of
cache hits and improving overall performance.
3.12.3 48-bit Logical Block Addressing (LBA)
The 48-bit Address feature set allows devices with capacities up to approximately 281 tera sectors
or approximately 144 peta bytes. In addition, the number of sectors that may be transferred by a
single command are increased by increasing the allowable sector count to 16 bits.
48-bit Address
Bits (47:40)
Bits (39:32)
Bits (31:24)
Bits (23:16)
Bits (15:8)
Bits (7:0)
LBA High
(exp)
LBA Mid (exp)
LBA Low (exp)
LBA High
LBA Mid
LBA Low
16-bit Sector Count
Bits (15:8)
Bits (7:0)
Sector Count
(exp)
Sector Count
3.13 Power Management
The drives support the ATA power management commands that lower the average power
consumption of the hard drives. For example, to take advantage of the lower power consumption
modes of the drive, an energy efficient host system could implement a power management scheme
that issues a Standby Immediate command when a host resident disk inactivity timer expires. The
Standby Immediate command causes the drive to spin down and enter a low-power mode.
Subsequent disk access commands would cause the drive to spin up and execute the new command.
To avoid excessive wear on the drive due to the starting and stopping of the HDA, set the host’s
disk inactivity timer to no shorter than ten minutes.
HGST Hard Disk Drive Technical Reference Manual
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The drives also support the SATA power management feature that lowers the average power
consumption of the SATA interface.
3.14 Self-Monitoring, Analysis, and Reporting Technology (S.M.A.R.T.)
S.M.A.R.T. helps you monitor a drive’s internal status through diagnostic commands at the host
level.
The drive monitors Read Error Rate, Start/Stop Count, Re-allocated Sector Count, Seek Error Rate,
Power-on Hours Count, Spin-up Retry Count, Drive Calibration Retry Count, Drive Power Cycle
Count, Offline Scan Uncorrectable Sector Count, Ultra ATA CRC Error Rate, Multi-zone Error
Rate, Spin-up Time, Relocation Event Count, and Current Pending Sector Count. The hard drive
updates and stores these attributes in the reserved area of the disk. The drive also stores a set of
attribute thresholds that correspond to the calculated attribute values. Each attribute threshold
indicates the point at which its corresponding attribute value achieves a negative reliability status.
3.15 Security Mode
The Security Mode feature set allows the user to create a device lock password that prevents
unauthorized hard drive access even if the drive is removed from the computer.
3.15.1 Master and User Passwords
The manufacturer/dealer can set a master password using the Security Set Password command,
without enabling the device lock function. The user password should be given or changed by a
system user.
Master Password Identifier is supported and set to a default value of 00FE. If a Master Password is
set via a Security Set Password Command, a valid Master Password Revision code value of 0001h
– 00FEh must be used. A Master Password Identifier of 0000h is ignored.
When the master password is set, the drive does not enable the device lock function. When the user
password is set, the drive enables the device lock function, and the drive is locked after the next
power on reset or hard reset.
3.15.2 Security Levels
High - If High level security is set and the user password is forgotten, the master password can be
used to unlock the drive and access the data.
Maximum - If Maximum level security is set and the user password is forgotten, data access is
impossible. Only the master password with a Security Erase Unit command can unlock the drive
when the device lock function is enabled and the user password has been forgotten. When the
Security Erase Unit command is used to unlock the drive, all user data is erased.
HGST Hard Disk Drive Technical Reference Manual
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4.0
AT COMMAND S ET
4.1
Host Interface Commands
4.1.1
ATA-7/ATA-8 Commands
Table 4-1 lists the hexadecimal codes specific to each ATA-7/ATA-8 command supported by these
hard drives. Refer to the D1699 ATA8-ACS specification for full details on each command.
Table 4-1. ATA-7/ATA-8 Command Opcodes
COMMAND
CHECK POWER MODE
HEX OPCODE
E5
DEVICE CONFIGURATION OVERLAY
B1
DOWNLOAD MICROCODE
92
EXECUTE DEVICE DIAGNOSTIC
90
FLUSH CACHE
E7
FLUSH CACHE EXT
EA
IDENTIFY DEVICE
EC
IDLE
E3
IDLE IMMEDIATE
E1
NOP
00
READ BUFFER
E4
READ DMA
C8
READ DMA EXT
25
READ FPDMA QUEUED
60
READ LOG EXT
2F
READ LOG DMA EXT
47
READ MULTIPLE
C4
READ MULTIPLE EXT
29
READ NATIVE MAX ADDRESS
F8
READ NATIVE MAX ADDRESS EXT
27
READ SECTOR(S)
20
READ SECTORS(S) EXT
24
READ VERIFY SECTOR(S) EXT
42
READ VERIFY SECTORS(S)
40
S.M.A.R.T.
B0
SECURITY DISABLE PASSWORD
F6
SECURITY ERASE PREPARE
F3
SECURITY ERASE UNIT
F4
SECURITY FREEZE LOCK
F5
SECURITY SET PASSWORD
F1
SECURITY UNLOCK
F2
SET FEATURES
EF
SET MAX
F9
SET MAX ADDRESS EXT
37
SET MULTIPLE
C6
SLEEP
E6
STANDBY
E2
HGST Hard Disk Drive Technical Reference Manual
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COMMAND
HEX OPCODE
STANDBY IMMEDIATE
E0
WRITE BUFFER
E8
WRITE DMA
CA
WRITE DMA EXT
35
WRITE FPDMA QUEUED
61
WRITE LOG EXT
3F
WRITE LOG DMA EXT
57
WRITE MULTIPLE
C5
WRITE MULTIPLE EXT
39
WRITE SECTOR(S)
30
WRITE SECTOR(S) EXT
34
WRITE UNCORRECTABLE EXT
45
4.1.2
SATA Commands
Table 4-2 lists the hexadecimal codes specific to each SATA command supported by these hard
drives. Refer to the SATA specification for full details on each command.
Table 4-2. Optional Subcommands
COMMAND
SUBFUNCTION
DOWNLOAD MICROCODE
4.1.3
Mode 3
Obsolete Commands
Table 4-3 lists the hexadecimal codes specific to each obsolete command supported by these hard
drives.
Table 4-3. Obsolete Command Opcodes
COMMAND
HEX OPCODE
INITIALIZE DEVICE PARAMETERS
91
RECALIBRATE
10
SEEK
70
HGST Hard Disk Drive Technical Reference Manual
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4.1.4
SCT Commands
SCT commands provide capabilities not covered in ATA/ATAPI-7 for commands that do not fit
the ATA command delivery model. Some SCT commands report completion when the command
begins execution. Execution progress for these commands may be checked by requesting SCT
status. See ATA8-ACS for a full description of SCT.
Table 4-4. SCT Action Codes
ACTION CODE
4.2
DESCRIPTION
0000h
RESERVED
0001h
Long Sector Access
0004h
Features Control
0005h
SCT Data Tables
0006h
Vendor specific
0007h
BFFFh Reserved
C000h
FFFFh Vendor specific
S.M.A.R.T. (B0h)
The S.M.A.R.T. command provides access to attribute values, S.M.A.R.T. status, and other
S.M.A.R.T. information. These commands can be used for logging and reporting purposes, and for
accommodating special user needs.
Prior to writing the S.M.A.R.T. command to the Command Register, the host must write key values
into the LBA Mid and LBA High Registers (4Fh, C2h) or the command will be aborted and an
error will be reported.
The S.M.A.R.T. command has several sub-commands that are selectable via the Features Register
when the host issues the S.M.A.R.T. command. To select a sub-command, the host must write the
appropriate sub-command code to the Features Register before issuing the S.M.A.R.T. command.
The sub-commands and their respective codes are listed below. For more detailed information on
executing S.M.A.R.T. commands, please see the ATA specification.
4.2.1
Read Attribute Values Sub-Command
This command returns a sector of data with the drive's S.M.A.R.T. data structure.
Table 4-5. Definitions for the 512 Bytes.
BYTE
VALUE
DESCRIPTION
0-1
0010h
2 - 361
XX
S.M.A.R.T. Attribute Data
362
XX
Offline data collection status
0Xh OL disabled
8Xh OL enabled
X0h scan not run
X2h scan complete
X4h scan suspended
X5h scan aborted
363
XX
S.M.A.R.T. Data Structure Revision
Self-Test execution status byte.
00h
The previous self-test routine completed without error
or no self-test has ever been run
01h
The self-test routine was aborted by the host
02h
03h
The self-test routine was interrupted by the host with a
hard or soft reset
A fatal error or unknown test error occurred while the
device was executing its self-test routine. The device
was unable to complete the self-test routine.
HGST Hard Disk Drive Technical Reference Manual
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BYTE
VALUE
DESCRIPTION
04h
05h
06h
07h
08h
090Eh
0Fh
364 - 365
The previous self-test completed having a test element
that failed. The test element that failed is not known.
The previous self-test completed having a test element
that failed. The electrical element of the test failed.
The previous self-test completed having a test element
that failed. The servo (and/or seek) test element of the
test failed.
The previous self-test completed having a test element
that failed. The read element of the test failed.
The previous self-test completed having a test element
that failed. The element damage is suspected to be
caused by handling.
Reserved
Self-test routine in progress
XX
Total time in seconds to complete offline data collection activity
366
XX
Reserved
367
7Bh
Offline data collection capability. Bits are as follows:
368 - 369
0003h
370
01h
0
1 = Offline Immediate Command supported
1
1 = Auto Offline enable\disable command supported
2
0 = Offline will suspend on and will resume after host
command
3
1 = Offline read scan implemented
4
1 = DST Short and Extended tests supported
5
1 = DST Conveyance test supported
6
1 = DST Selective test supported
7
0 = Reserved
S.M.A.R.T. Capability. Bits are as follows:
1 = The device saves SMART data prior to going into a
1
power saving mode
1 = Device complies with SMART data autosave after an
1
event
2-15
Reserved
Error logging capability. Bits are as follows:
0
1 = Error logging supported
1
Reserved
371
XX
Reserved
372
XX
Short self-test routine completion time in minutes
373
XX
Extended self-test routine completion time in minutes
374
XX
Conveyance self-test routine completion time in minutes
375 - 510
XX
Reserved
511
XX
Checksum
HGST Hard Disk Drive Technical Reference Manual
36
4.2.2
Supported Attributes
The drive supports the following attributes.
Attribute
Attribute ID Number
Pre-Failure/Advisory Bit
(Status Flags bit 0)1
Read Error Rate
1
Pre-Failure
Spin-up Time
3
Pre-Failure
Start/Stop Count
4
Advisory
Re-allocated Sector Count
5
Pre-Failure
Seek Error Rate
7
Advisory
Power-on Hours Count
9
Advisory
Spin-up Retry Count
10
Advisory
Drive Calibration Retry Count
11
Advisory
Drive Power Cycle Count
12
Advisory
Emergency Retract Cycles
192
Advisory
Load/Unload Cycles
193
Advisory
HDA Temperature2
194
Advisory
Relocation Event Count
196
Advisory
Current Pending Sector Count
197
Advisory
Offline Scan Uncorrectable Sector Count
198
Advisory
Ultra DMA CRC Error Rate
199
Advisory
Multi-zone Error Rate
200
Advisory
1
2
Status bits are typical but may vary.
See “Temperature Reporting” on page 25 for a better mechanism.
Attributes that use the Pre-Failure/Advisory Bit Set can predict potential future degrading or faulty
conditions. Attributes with the Failure/Advisory Bit Clear are used for informational purposes only,
they do not indicate impending drive failure.
The S.M.A.R.T. data saving process is a background task. After a pre-determined idle period, the
self-monitoring data is automatically saved to the disk.
HGST Hard Disk Drive Technical Reference Manual
37
4.2.3
Read Log Sector
There are several logs that can be read with the S.M.A.R.T. Read Log Sector sub-command. The
LBA Low Register indicates the log sector to be returned.
Table 4-6. Log Address Definition
Log
Address
00h
Log Name
Feature Set
R/W
Access
Log directory
ExtLog
RO
GPL, SL
01h
Summary Log
SMART
RO
SL
02h
Comprehensive SMART error
log
SMART
RO
SL
03h
Extended Comprehensive
SMART error log
ExtLog
RO
GPL
04h
Device Statistics
N/A
RO
GPL, SL
05h
Reserved
Reserved
Reserved
06h
SMART self-test log
SMART
RO
SL
07h
Extended SMART self-test log
ExtLog
RO
GPL
08h
Reserved
Reserved
Reserved
09H
Selective self-test log
SMART
R/W
0Ah-0Fh
Reserved
N/A
Reserved
SL
10h
NCQ Command Error
NCQ
RO
GPL
11h
SATA PHY Counters
ExtLog
RO
GPL
12h-17h
Reserved for Serial ATA
N/A
Reserved
18h-1Fh
Reserved
N/A
Reserved
20h
Obsolete
21h
Write Stream Error Log
Streaming
RO
GPL
22h
Read Stream Error Log
Streaming
RO
GPL
23h
Obsolete
24h-7Fh
Reserved
N/A
Reserved
80h-9Fh
Host vendor specific
SMART / ExtLog
R/W
GPL, SL
A0h-BFh
Device vendor specific
SMART / ExtLog
VS
GPL, SL
C0h-EFh
Reserved
Reserved
Reserved
E0h
SCT Command/Status
N/A
R/W
E1h
SCT Data Transfer
E2h-FFh
Reserved
GPL, SL
GPL, SL
Reserved
RO – Read Only
R/W – Read / Write
SMART – Supported by B0h command code.
ExtLog – Supported by 2Fh/3Fh command code.
VS – Vendor Specific
SCT – SMART Command Transport
HGST Hard Disk Drive Technical Reference Manual
38
Reserved
4.3
Identify Device (ECh)
The Identify Device command transfers 512 bytes of data that specify the drive’s parameters.
Table 4-7 lists the parameters read by the host.
Table 4-7. Identify Device Command
WORD
FIELD DESCRIPTION
VALUE
0
General Configuration
1
Obsolete
2
Specific Configuration
3
Obsolete
0
4-5
Retired
0
6
Obsolete
0
7-8
Reserved for assignment by the CompactFlash™
Association
0
9
Retired
0
10-19
Serial Number (ATA String)
20-21
Retired
427Ah
0
XXXX
nnnnnnnn
0
22
Obsolete
23-26
Firmware Revision (ATA String)
27-46
Model Numbers (ATA String)
47
READ/WRITE MULTIPLE support
Bit 15-8: 80h
Bit 7-0: 00h: Reserved
01h-FFh = Maximum number of logical sectors that shall be
transferred per DRQ data block on READ/WRITE
MULTIPLE commands
8010h
Trusted Computing feature set options
Bit 15: Shall be cleared to zero
Bit 14: Shall be set to one
Bit 13-1: Reserved for the Trusted Computing Group
Bit 0: If set, Trusted Computing feature set is supported
4000h
Capabilities
Bit 15-14: Reserved for the IDENTIFY PACKET DEVICE
command.
Bit 13: If set, Standby timer values as specified in this
standard are supported.
0 = Standby timer values shall be managed by the device
Bit 12: Reserved for the IDENTIFY PACKET DEVICE
command
Bit 11: If set, IORDY supported
Bit 10: If set, IORDY may be disabled
Bit 9: If set, LBA supported
Bit 8: If set, DMA supported
Bit 7-2: Reserved
Bit 1: Current Long Physical Alignment Setting
2F00h
Capabilities
Bit 15: Shall be cleared to zero.
Bit 14: Shall be set to one.
Bit 13-2: Reserved.
Bit 1: Obsolete
Bit 0: Shall be set to one to indicate a device specific
Standby timer value minimum
4001h
48
49
50
51-52
Obsolete
HGST Hard Disk Drive Technical Reference Manual
39
0
nnnn
“HGST HTS725050B7E630”
“HGST HTS725032B7E630”
0
WORD
FIELD DESCRIPTION
53
Additional Words Valid
Bit 8-15: Free-fall Control Sensitivity
00h = Vendor’s recommended setting
01h-FFh = Sensitivity level. A larger number is a
more sensitive setting.
Bit 7-3: Reserved
Bit 2: If set, the fields reported in word 88 are valid
Bit 1: If set, the fields reported in words 70-64 are valid
Bit 0: Obsolete
54-58
Obsolete
59
Current Blocking Factor
Bit 15: 1=The BLOCK ERASE EXT command is supported
Bit 14: 1= The OVERWRITE EXT command is supported
Bit 13: 1=The CRYPTO Scramble EXT command is
supported
Bit 12: 1=The Sanitize feature set is supported
Bit 9-11 Reserved
Bit 8: 1=Multiple local sector setting is valid
Bit 0-7: Current setting for number of logical sectors that
shall be transferred per DRQ data block on READ/WRITE
Multiple commands
VALUE
0007h
0
XXh
60-61
Total number of user addressable logical sectors for
28 bit commands (DWord)
62
Obsolete
63
Multi-Word DMA Transfer Mode Supported
Bit 15-11: Reserved
Bit 10: If set, Multiword DMA mode 2 is selected
Bit 9: If set, Multiword DMA mode 1 is selected
Bit 8: If set, Multiword DMA mode 0 is selected
Bit 7-3: Reserved
Bit 2: If set, Multiword DMA mode 2
Bit 1: If set, Multiword DMA mode 1
Bit 0: If set, Multiword DMA mode 0
XX07h
64
Advanced PIO Modes Supported
Bits 0-7: PIO Modes supported
0003h
65
Min. Multi-Word DMA Transfer Cycle Time (ns)
Bit 15-0: Cycle time in nanoseconds
120
66
Manufacturer Recommended Multi-Word DMA Cycle
Time
Bit 15-0: Cycle time in nanoseconds
120
67
Min. PIO Transfer Cycle Time without flow control
Bit 15-0: Cycle time in nanoseconds
120
68
Min. PIO Transfer Cycle Time with IORDY flow control
Bit 15-0: Cycle time in nanoseconds
120
69
Additional Supported
Bit 15: If set, CFast Specification Support
Bit 14: If set, Deterministic data in trimmed LBA range(s) is
supported
Bit 13: If set, Long Physical Sector Alignment Error
Reporting Control is supported
Bit 12: If set, DEVICE CONFIGURATION IDENTIFY DMA
and DEVICE CONFIGURATION SET DMA are supported
Bit 11: If set, READ BUFFER DMA is supported
Bit 10: If set, WRITE BUFFER DMA is supported
Bit 9: If set, SET MAX SET PASSWORD DMA and SET
MAX UNLOCK DMA are supported
Bit 8: If set, DOWNLOAD MICROC
Bit 6: If set, Optional ATA device 28-bit commands
supportedODE DMA is supported
Bit 7: If set, Reserved for IEEE 1667
Bit 5: If set, Trimmed LBA range(s) returning zeroed data is
supported
Bit 4: If set, Device Encrypts All User Data
Bit 3: If set, Extended Number of User Addressable Sectors
is supported
Bit 2-0: Reserved
0
Reserved
0
70
HGST Hard Disk Drive Technical Reference Manual
40
0FFFFFFFh
0
WORD
FIELD DESCRIPTION
71-74
Reserved for the Identify Packet Device command
75
Queue Depth
Bit 15-5: Reserved
Bit 4-0: Maximum queue depth - 1
76
Serial ATA Capabilities
Bit 15-13: Reserved
Bit 12: Supports Native Command Queuing priority
information
Bit 11: Supports Unload while NCQ commands
outstanding
Bit 10: Supports Phy event counters
Bit 9: Supports receipt of host-initiated interface power
management requests
Bit 8: Supports Native Command Queuing (NCQ)
Bit 7-4: Reserved for future Serial ATA signaling speed
grades
Bit 3: 1=Supports Serial ATA Gen3 signal speed (6 Gb/s)
Bit 2: 1= Supports Serial ATA Gen2 signaling speed
(3 Gb/s)
Bit 1: 1= Supports Serial ATA Gen1 signaling speed
(1.5 Gb/s)
Bit 0: Shall be cleared to zero
VALUE
0
001Fh
1111 1111 0000 1110b
FF0Eh
77
Reserved for Serial ATA
78
Serial ATA Features Supported
Bit 7-15: Reserved for Serial ATA
Bit 6: If set, device supports software settings preservation
Bit 5: Reserved for Serial ATA
Bit 4: If set, device supports in-order data delivery
Bit 3: If set, device supports initiating power management
Bit 2: If set, device supports DMA Setup Auto-activation
Bit 1: If set, device supports non-zero buffer offsets
Bit 0: Cleared to zero
0000 0000 0100 1100b
004Ch
Serial ATA Features Enabled
Bits 7-15: Reserved for Serial ATA
Bit 6: If set, software settings preservation enabled
Bit 5: Reserved for Serial ATA
Bit 4: If set, In-order data delivery enabled
Bit 3: If set, device initiated power management enabled
Bit 2: If set, DMA Setup Auto-activation enabled
Bit 1: If set, non-zero buffer offsets enabled
Bit 0: Cleared to zero
0000 0000 0X0X XXX0b
79
80
0002h
Major Version Number
Bit 15-10: Reserved
Bit 9: if set, supports ACS-2
Bit 8: if set, supports ATA8-ACS
Bit 7: if set, supports ATA/ATAPI-7
Bit 6: if set, supports ATA/ATAPI-6
Bit 5: if set, supports ATA/ATAPI-5
Bit 4 –1: Obsolete
Bit 0: Reserved
03FEh
81
Minor Version Number
001Fh
82
Command and feature sets supported
Bit 14: If set, NOP command supported
Bit 13: If set, Read buffer command supported
Bit 12: If set, Write buffer command supported
Bit 11: Obsolete
Bit 10: If set, Host Protected Area Feature Set supported
Bit 9: If set, Device Reset command supported
Bit 8: If set, Service interrupt supported
Bit 7: If set, Release interrupt supported
Bit 6: If set, look-ahead supported
Bit 5: If set, Write Cache supported
Bit 4: Cleared to 0 to indicate that the PACKET feature set
is not supported.
Bit 3: If set, mandatory Power Management Feature Set
supported
Bit 2: Obsolete
Bit 1: If set, Security Feature Set supported
Bit 0: If set, SMART Feature Set supported
HGST Hard Disk Drive Technical Reference Manual
41
0111 0100 0110 1011b
746Bh
WORD
FIELD DESCRIPTION
83
Command Set Supported
Bit 15: Shall be cleared to 0
Bit 14: Shall be set to 1
Bit 13: If set, Flush Cache EXT command supported
Bit 12: If set, mandatory Flush Cache command supported
Bit 11: If set, DCO feature set supported
Bit 10: If set, 48-bit Address Feature Set supported
Bit 9: Not supported
Bit 8: If set, Set Max Security Extension supported
Bit 7: Reserved
Bit 6: If set, Set Features subcommand required to spin-up
after power-up
Bit 5: If set, Power-Up In Standby feature set supported
Bit 4: Obsolete
Bit 3: If set, Advanced Power Management feature set
supported
Bit 2: If set, CFA feature set supported
Bit 1: If set, Read/Write DMA Queued supported
Bit 0: If set, Download Microcode command supported
0111 1101 0110 1001b
7D69h
Command and feature sets supported
Bit 15: Shall be cleared to zero
Bit 14: Shall be set to one
Bit 13: If set, Idle Immediate with Unload Feature supported
Bit 12: Reserved
Bit 11: Reserved
Bit 9-10: Obsolete
Bit 8: If set, 64-bit World wide name supported
Bit 7: If set, Write DMA Queued FUA EXT command
supported
Bit 6: If set, Write DMA FUA EXT and Write Multiple FUA
EXT commands supported
Bit 5: If set, General Purpose Logging feature set supported
Bit 4: If set, Streaming Feature Set supported
Bit 3: Obsolete
Bit 2: If set, Media serial number supported
Bit 1: If set, SMART Self-Test supported
Bit 0: If set, SMART Error Logging supported
0110 0001 0010 0011b
6123h
Command and feature sets supported or enabled
Bit 15: Obsolete
Bit 14: If set, NOP command supported
Bit 13: If set, Read Buffer command supported
Bit 12: If set, Write Buffer command supported
Bit 11: Obsolete
Bit 10: If set, Host Protected Area has been established
Bit 9: If set, DEVICE RESET command supported
Bit 8: If set, SERVICE interrupt enabled
Bit 7: If set, Release Interrupt enabled
Bit 6: If set, Read look-ahead enabled
Bit 5: If set, Volatile Write cache enabled
Bit 4: Cleared to 0 to indicate that the PACKET feature set
is not supported
Bit 3: Set to 1 to indicate that the Mandatory Power
Management feature set is supported
Bit 2: Obsolete
Bit 1: If set, Security Feature Set enabled
Bit 0: If set, SMART Feature Set enabled
0111 0X0X XXX0 10XXb
Commands and feature sets supported or enabled
Bit 15: If set, Words 119-120 are valid
Bit 14: Reserved
Bit 13: If set, Flush Cache EXT command supported
Bit 12: If set, Flush Cache command supported
Bit 11: If set, Device Configuration Overlay supported
Bit 10: If set, 48-bit Address Feature Set supported
Bit 9: Not supported
Bit 8: If set, Set Max Security Extension enabled by Set Max
Set Password
Bit 7: Reserved
Bit 6: If set, Set Features subcommand required to spin-up
after power-up
Bit 5: If set, Power-Up In Standby feature set enabled
Bit 4: Obsolete
Bit 3: If set, Advanced Power Management feature set
enabled
Bit 2: If set, CFA Feature Set enabled
Bit 1: If set, Read/Write DMA Queued command supported
Bit 0: If set, Download Microcode command supported
1011 11XX 01X0 X001b
84
85
86
HGST Hard Disk Drive Technical Reference Manual
42
VALUE
WORD
FIELD DESCRIPTION
87
Commands and feature sets supported or enabled
Bit 15: Shall be cleared to zero
Bit 14: Shall be set to 1
Bit 13: If set, Idle Immediate with Unload Feature supported
Bit 12: Reserved
Bit 11: Reserved
Bit 9-10: Obsolete
Bit 8: If set, 64-bit World wide name supported
Bit 7: If set, Write DMA Queued FUA EXT command
supported
Bit 6: If set, Write DMA FUA EXT and Write Multiple FUA
EXT commands supported
Bit 5: If set, General Purpose Logging Feature Set
supported
Bit 4: Obsolete
Bit 3: If set, Media Card Pass Through Command feature
set supported
Bit 2: If set, Media serial number is valid
Bit 1: If set, SMART Self-Test supported
Bit 0: If set, SMART Error Logging supported
0100 0001 0010 XX11b
Ultra DMA modes
Bit 15: Reserved
Bit 14: If set, Ultra DMA Mode 6 is selected
Bit 13: If set, Ultra DMA Mode 5 is selected
Bit 12: If set, Ultra DMA Mode 4 is selected
Bit 11: If set, Ultra DMA Mode 3 is selected
Bit 10: If set, Ultra DMA Mode 2 is selected
Bit 9: If set, Ultra DMA Mode 1 is selected
Bit 8: If set, Ultra DMA Mode 0 is selected
Bit 7: Reserved
Bit 6: Ultra DMA mode 6 supported
Bit 5: Ultra DMA mode 5 supported
Bit 4: Ultra DMA mode 4 supported
Bit 3: Ultra DMA mode 3 supported
Bit 2: Ultra DMA mode 2 supported
Bit 1: Ultra DMA mode 1 supported
Bit 0: Ultra DMA mode 0 supported
XXXX XXXX 0111 1111b
88
VALUE
89
Bit 15-8: Reserved
Bit 7-0: Time required for Normal Erase mode
SECURITY ERASE UNIT command
xxh
90
Bit 15-8: Reserved
Bit 7-0: Time required for Normal Erase mode
SECURITY ERASE UNIT command
xxh
91
Current APM level value
XXXXh
92
Master Password Identifier
XXXXh
93
Hardware reset result
0
94
Obsolete
0
95
Stream Minimum Request Size
0
96
Stream Transfer Time - DMA
0
97
Stream Access Latency -DMA and PIO
0
98-99
Stream Performance Granularity (Dword)
0
100-103
Total number of User Addressable Logical Sectors
(QWord)
104
Streaming Transfer Time - PIO
0
105
Maximum number of 512 byte blocks per Data Set
Management command
0
106
Physical sector size / logical sector size
Bit 15 Shall be cleared to zero
Bit 14 Shall be set to one
Bit 13 if set, Device has multiple logical sectors per physical sector.
Bit 12 if set, Device Logical Sector longer than 256 Words
Bits 11-4 Reserved
Bits 3-0 2X logical sectors per physical sector
HGST Hard Disk Drive Technical Reference Manual
43
HTS725050B7E630
(976,773,168)
HTS725032B7E630
(625,142,448)
6003h
WORD
FIELD DESCRIPTION
VALUE
107
Inter-seek delay for ISO 7779 standard acoustic testing
108-111
World Wide Name
112-115
Reserved
0
116
Reserved for TLC
0
117-118
Logical Sector size (DWord)
0
119
Commands and feature sets supported (Continued
from words 82-84)
Bit 15: Cleared to zero
Bit 14: Shall be set to one
Bit 13-8: Reserved
Bit 7: If set, Extended Power Conditions feature set
supported
Bit 6: If set, Sense Data Reporting supported
Bit 5: If set, Free-fall Control feature set is supported
Bit 4: If set, DOWNLOAD MICROCODE with offsets is
supported
Bit 3: If set, READ and WRITE DMA EXT GPL optional
commands are supported
Bit 2: If set, WRITE UNCORRECTABLE EXT supported
Bit 1: If set, Write-Read-Verify feature set is supported
Bit 0: Reserved for DDT
0100 0000 0001 1000b
4018h
Commands and feature sets supported (Continued
from words 85-87)
Bit 15: Cleared to zero
Bit 14: Shall be set to one
Bit 13-8: Reserved
Bit 7: If set, Extended Power Conditions feature set
supported
Bit 6: If set, Sense Data Reporting supported
Bit 5: If set, Free-fall Control feature set is supported
Bit 4: If set, DOWNLOAD MICROCODE with offsets is
supported
Bit 3: If set, READ and WRITE DMA EXT GPL optional
commands are supported
Bit 2: If set, WRITE UNCORRECTABLE EXT supported
Bit 1: If set, Write-Read-Verify feature set is supported
Bit 0: Reserved for DDT
0100 0000 0001 1000b
4018h
120
0
XXXXXXXXXXXXXXXX
121-126
Reserved
0
127
Obsolete
0
128
Security Status
Bit 15-9: Reserved
Bit 8: Security level (0 = High, 1 = Maximum)
Bit 7-6: Reserved
Bit 5: If set, Enhanced Security Erase supported
Bit 4: If set, Security count expired
Bit 3: If set, Security Frozen
Bit 2: If set, Security Locked
Bit 1: If set, Security enabled
Bit 0: If set, Security supported
0000 000X 001X XXX1b
129-159
Vendor Specific
0
160
CFA power mode
Bit 15: Word 160 supported
Bit 14: Reserved
Bit 13: CFA power mode
Bit 12: CFA power mode 1 disable
Bit 11-0: Maximum current in ma
0
161-167
Reserved for the CompactFlash™ Association
0
168
Device Nominal Form Factor
Bit 15-4: Reserved
Bit 3-0: Device Nominal Form Factor
0
169
Data Set Management Command
Bit 15-1: Reserved
Bit 0: if set, the Trim bit in the Data Set Management
command supported
0
170-173
Additional Product Identifier
0
174-175
Reserved
0
HGST Hard Disk Drive Technical Reference Manual
44
WORD
FIELD DESCRIPTION
176-205
Current Media Serial number
206
SCT Command Transport
Bit 15-12: Vendor Specific
Bit 11-6: Reserved
Bit 5: If set, SCT Data tables command supported
Bit 4: If set, SCT Features Control command supported
Bit 3: If set, SCT Error Recovery Control command
supported
Bit 2: If set, SCT Write Same command supported
Bit 1: If set, Obsolete
Bit 0: If set, SCT Command Transport supported
207-208
Reserved
209
Alignment of logical blocks within a physical block
Bit 15: Shall be cleared to zero
Bit 14: Shall be set to one
Bits 13-0: Logical sector offset within the first physical
sector where the first logical sector is placed.
VALUE
0
0011 0000 0011 0101b
3035h
0
4000h
210-211
Write-Read-Verify Sector Count Mode 3
0
212-213
Write-Read-Verify Sector Count Mode 2
0
214
NV Cache Capabilities
Bit 15-12: NV Cache feature set version
Bit 11-8: NV Cache Power Mode feature set version
Bit 7-5: Reserved
Bit 4: If set, NV Cache feature set enable
Bit 3-2: Reserved
Bit 1: If set, NV Cache Power Mode feature set enable
Bit 0: if set, NV Cache Power Mode feature set supported
0
215-216
NV Cache Size in Logical Blocks
217
Nominal media rotation rate
0
218
Reserved
0
219
NV Cache Options
Bit 15-8: Reserved
Bit 7-0: Device Estimate Time to spin up in seconds
0
220
Bit 15-8: Reserved
Bit 7-0: Write-Read-Verify feature set current mode
0
221
Reserved
0
222
Transport major version number
0000h or FFFFh=device does not report version
Bit 12-15: Transport Type (0h=Parallel 1h=Serial 2hFh=Reserved)
Bit 11-7: Reserved (Parallel, Serial)
Bit 6: Reserved
SATA Rev. 3.1
Bit 5: Reserved
SATA Rev. 3.0
Bit 4: Reserved
SATA Rev. 2.6
Bit 3: Reserved
SATA Rev. 2.5
Bit 2 : Reserved
SATA II: Extensions
Bit 1: ATA/ATAPI-7 SATA 1.0a
Bit 0: ATA8-APT ATA8-AST
1C20h
0001 0000 0111 1110b
107Eh
223
Transport minor version number
0
224-229
Reserved
0
230-233
Extended Number of User Addressable Sectors (Qword)
0
234
Minimum number of 512-byte data blocks per
DOWNLOAD MICROCODE command for mode 03h
0001h
235
Maximum number of 512-byte data blocks per
DOWNLOAD MICROCODE command for mode 03h
1000h
236-254
Reserved
255
Integrity Word
Bit 15-8: Checksum
Bit 7-0: Signature
HGST Hard Disk Drive Technical Reference Manual
45
0
XXA5h
4.4
Set Features (EFh)
The Set Features command enables or disables the features listed in the following table
FUNCTION
FEATURES
REGISTER
SECTOR COUNT REGISTER
Enable read look-ahead1
AAh
Don’t care
Disable read look-ahead1
55h
Don’t care
02h
Don’t care
Enable write
cache1
82h
Don’t care
Set Transfer Mode
03h
Don’t care
Enable use of Serial ATA Feature
10h
02h-DMA Setup FIS Auto-Activate optimization
03h-Device-initiated interface power state
transitions
06h-Software Settings Preservation
Disable use of Serial ATA Feature
90h
02h-DMA Setup FIS Auto-Activate optimization
03h-Device-initiated interface power state
transitions
06h-Software Settings Preservation
Enable the PUIS feature set1
06h
Don’t care
set1
86h
Don’t care
07h
Don’t care
66h
Don’t care
Disable write
cache1
Disablethe PUIS feature
PUIS feature set device
spinup1
Enable/disable reverting to
defaults1
1 Changes are only valid while power remains applied to the drive. After power is cycled, the drive reverts to the default
settings.
HGST Hard Disk Drive Technical Reference Manual
46
5.0
I NSTALLATION
AND
S ETUP P ROCEDURES
Hard drives are precision instruments that must be handled with care to prevent damage. It is important to
understand that drives are typically damaged due to electrostatic discharge (ESD), pressing on the top cover,
rough handling, or shock and vibration. Also refer to the HGST 2.5-inch Hard Drive Handling poster (part
number 2378-701047) for details on drive handling.
Important: If your system does not support hot plugging (see “Hot Plug Support” on page 28), it must be turned off and
unplugged before installing your hard drive.
5.1
Unpacking
5.1.1
Handling Precautions
HGST products are designed to withstand normal handling during unpacking and installation. Take
care to avoid excessive mechanical shock, pressing on the top cover, or electrostatic discharge
(ESD) which can permanently damage the hard drive and void the warranty. Hard drives are
typically damaged because of ESD, rough handling, or shock and vibration.
Figure 5-1. Drive Handling Precautions
Hard drives are delicate, precision instruments and should be handled with care at all times.
Hard drives are typically damaged by rough handling, shock, vibration, and electrostatic discharge (ESD).
Handle the Drive ONLY by its Sides
DO NOT Press on the Top Cover of the Drive
To avoid ESD problems, wear a properly grounded wrist strap when handling the hard drive.
Articles of clothing generate static electricity. Do not allow clothing to come in direct contact with
the hard drive or circuit board components.
When the drive is not in its shipping container or installed in its proper host enclosure, it must
remain in the antistatic bag. To prevent damage, do not unpack your drive until you are ready to
install it.
CAUTION:To avoid damage to internal drive components, do not apply a load greater than
2.6 lbf to a circular 10 mm diameter area anywhere on the top cover. Chassis
design should allow for sufficient clearance and support to prevent loads from
being transferred to the drive top cover.
HGST Hard Disk Drive Technical Reference Manual
47
5.1.2
Inspection of Shipping Container
Carefully examine the container for obvious shipping damage, such as: holes, signs of crushing, or
stains. Notify the carrier and your HGST representative if you observe any shipment damage.
Always move the shipping container in the upright position indicated by the arrows on the
container.
5.1.3
Removal From Shipping Container
Remove the drive from the shipping container only for inspection or installation. Carefully open the
box. When removing the drive from the box, follow these precautions:

Grasp the drive by the sides only; avoid touching the circuit board components.

Gently place the drive on its antistatic bag on a clean, level, grounded work area.

Do not stack drives or stand the drive on its edge.
CAUTION:When removing the drive from the shipping container, be careful not to drop it.
Dropping the drive can severely damage the head disk assembly or printed
circuit board.
5.1.4
Removal From Static Shielding Bag
Before removing the drive from its static shielding bag:

Make sure that your work station is properly grounded.

Wear a properly grounded wrist strap with good skin contact.

Avoid contact with any component on the printed circuit board.
Figure 5-2. Hard Drive Removal From Static Shielding Bag
After attaching your wrist strap, gently remove the drive from the static shielding bag.

Handle the drive by the sides only; avoid touching the printed circuit board.

Handle the drive with the printed circuit board facing downward during installation.

The unit should not be moved during drive activity.

The unit is not intended as a portable device.

Do not attempt to open the drive and service it yourself. Removing the cover may expose you
to harmful electrical voltages and will void the warranty.

To allow ventilation, do not block the air slots on the underside and rear of the enclosure.

Do not remove the tape seal or any labels from the drive; this will void the warranty.
5.1.5
Moving Precautions
If you need to move your computer, turn off the power to automatically park the heads. Parking
moves the heads to a safe, non-data landing zone where they lock into place. This helps protect the
media and the heads from accidental damage due to vibration, moving, or shipping.
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48
5.2
Bare Drive Handling External Force
Cover stiffness must be sufficient to prevent cover-to-media or cover-to-hub contact when a 2.6 lbf
load is applied to a circular 10 mm diameter area anywhere on the cover.
5.3
Mounting Restrictions
Important: Your system must be turned off and unplugged before installing your hard drive.
5.3.1
Orientation
You can mount the hard drive in the X, Y, or Z axis, depending upon the physical design of your
system. For best results, mount the drive with all four screws grounded to the chassis. If all four
screws are not used, see "Grounding" on page 50.
5.3.2
Screw Type and Screw Length Limitations
The hard drive should be mounted to the chassis using four M3 screws. Recommended screw
torque is 5 in-lb. Maximum screw torque is 6 in-lb.
CAUTION: Screws that are too long can damage the hard drive. Hard drive screw penetration
can differ between products depending upon hard drive design. HGST's minimum
design criteria is to always meet the SFF 8201 industry standard specification.
The industry standard as defined in the SFF 8201, specifies for Side Mounting a
maximum of 3 mm screw penetration, and a minimum of 3 threads engagement,
for Bottom Mounting a maximum of 2.5 mm screw penetration, and a minimum
of 2.5 threads engagement.
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49
5.3.3
Grounding
For best results, mount the drive with all four screws in the side grounded to the chassis (positions
A, B, C, and D below). You must ground the drive with at least one mounting screw.
When mounting the drive in a chassis or system, the chassis or system should never contact the
cross-hatched area “E” to prevent electrical shorting of the PCBA or drive. Contact should be
limited to the side mounting (A,B,C, and D) or top facing mounting (1,2,3, and 4).
Figure 5-3. Grounding Diagram
Side Mounting – Use four metal screws in A, B, C, and D. If less than four screws are used, remove
in this order: C, D, and then B. You must use a screw in position A.
Top face Mounting–Use four metal screws in 1, 2, 3 and 4. If less than four screws are used, remove
in this order: 2, 4, and then 3. You must use a screw in position 1.
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5.4
J umper Settings
It is not necessary to put a jumper shunt on the drive for notebook use. Advanced settings for the
drive are as follows:
SSC Mode – Spread spectrum clocking feature. Default setting is disabled.
RPS Mode – RPS feature. Default setting is disabled
Figure 5-4. Jumper Settings
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51
6.0
MAINTENANCE
The hard drive requires no preventative maintenance and contains no user-serviceable parts. The service and
repair of HGST drives can only be performed at a HGST Service Center. Please contact your HGST
representative for warranty information and service/return procedures.
Observe the following precautions to prolong the life of the drive:

Do not attempt to open the sealed compartment of the HGST drive as this will void the warranty.

Do not lift a HGST drive by the printed circuit board.

Avoid static discharge when handling a HGST drive.

Avoid harsh shocks or vibrations.

Do not touch the components on the printed circuit board.

Do not obstruct or cover any holes on the drive’s cover. Air must be able to pass through these holes to the
external air filter for normal operation of the drive.

Observe the environmental limits specified for this product.

To protect your data, back it up regularly. HGST assumes no responsibility for loss of data. For information
about back-up and restore procedures, consult your operating system manual. There are also a number of
utility programs available that you can use to back up your data.
HGST Hard Disk Drive Technical Reference Manual
52
7.0
GLOSSARY
Active LED Status - HGST SATA drives support external LED requirements. It provides an activity LED
output which is ON during command execution and OFF otherwise.
Advanced Format (AF) — Technology adopted by HGST and other drive manufacturers to increase media
format efficiencies, thus enabling larger drive capacities.
Annualized Failure Rate (AFR) - A method of measuring failure rates or trends for a group of units at a site.
The rates are based on the monthly total number of returned field failure units divided by the total cumulative
installed base and multiplied by 12 (to annualize the failure rate).
Automatic Defect Retirement - If defective sectors are found during a read or write, they are automatically
mapped out and relocated.
Block - A group of bytes handled, stored, and accessed as a logical data unit, such as an individual file record.
Buffer - A temporary data storage area that compensates for a difference in data transfer rates and/or data
processing rates between sender and receiver.
Data Lifeguard™ — Representing HGST's ongoing commitment to data protection, 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.
Data Transfer Rate -The rate that digital data is transferred from one point to another, expressed in bits per
second or bytes per second.

Data Transfer Rate to Disk: The internal disk transfer rate in Mbits per second.
Data Transfer Rate from the Buffer to the Host: Based on the transfer of buffered data in MB per second.
Defect Management -A general methodology of eliminating data errors on a recording surface by mapping out
known bad areas of the media.
ECC On-the-Fly -A hardware correction technique that corrects errors in the read buffer prior to host transfer
without any performance penalties. These error corrections are invisible to the host system because they do not
require assistance from the drive’s firmware.
Error Correction Code (ECC) -A mathematical algorithm that can detect and correct errors in a data field by
adding check bits to the original data.
F.I.T. (Functional Integrity Testing) - A suite of tests HGST performs on all its drive products to ensure
compatibility with different hosts, operating systems, application programs, and peripherals. This testing must
be performed before the product can be released to manufacturing.
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.
Formatted Capacity - The actual capacity available to store data in a mass storage device. The formatted
capacity is the gross capacity minus the capacity taken up by the overhead data required for formatting the
media.
Hot Plugging - The ability to swap out a failed hard drive without having to power down the system or reboot.
Latency - The period of time that the read/write heads wait for the disk to rotate the data to an accessible
position.

Logical Address - A storage location address that may or may not relate directly to a physical location. The
logical address is usually used when requesting information from a controller. The controller performs a logicalto-physical address conversion and retrieves the data from a physical location in the storage device.
Logical Block Address - An alternative addressing methodology of identifying a given location on an SATA
drive that permits disk sizes greater than 528 MB.
Perpendicular Magnetic Recording (PMR) - In PMR, the magnetization of each data bit is aligned vertically
rather than longitudinally to the spinning disk. The adjacent bits attract instead of repel (as with bar magnets
placed side by side), creating more thermally stable bits.
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53
PRML (Partial Response Maximum Likelihood) - A read channel using sampled data, active equalization and
Veterbi detection to accurately retrieve the user data off the disk.
Reduced Power Spinup (RPS) — HGST’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.
RoHS (Restriction of Hazardous Substances) — HGST complies with the Restriction of Hazardous
Substances (RoHS) Directive 2002/95/EC of the European Parliament, which is effective in the EU beginning
July 1, 2006. RoHS aims to protect human health and the environment by restricting the use of certain
hazardous substances in new equipment, and consists of restrictions on lead, mercury, cadmium, and other
substances.
Rotational Latency - The amount of delay in obtaining information from a hard drive that can be attributed to
the rotation of the disk.
RPM (Revolutions per Minute) - Rotational speed of the media (disk), also known as the spindle speed. Hard
drives spin at one constant speed. The slower the RPM, the higher the mechanical latencies. Disk RPM is a
critical component of hard drive performance because it directly impacts the rotational latency of the disk
transfer rate.
Serial ATA (SATA) - SATA is the next generation bus interface for 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 plugging.
Sector - A 512- or 4K-byte packet of data.
Seek Time - The time it takes for the read/write head to move to a specific block of data on the hard drive. The
average seek time is computed by dividing the time it takes to complete a large number of random seeks by the
number of seeks performed.
Self-Monitoring, Analysis, and Reporting Technology (S.M.A.R.T.) - A technology to assist the user in
preventing possible system down time due to hard drive failure.
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.
System-on-Chip - The System-on-Chip (SOC) is the foundation for HGST'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.
Unrecoverable Error - A read error that cannot be overcome by an ECC scheme or by rereading the data when
host retries are enabled.
Write Cache - A feature in CacheFlow that posts “command complete” prior to completing the actual write.
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INDEX
G
A
Glossary, 53
Grounding, 50
Acoustics, 18, 21
Active LED Status, 30
Activity indication, 30
Actuator Type, 12
Advanced Formatting, 9, 22, 23, 33
Advanced formatting, 53
Agency Approvals, 21
Annualized Failure Rate, 53
Atmospheric Pressure, 17
Automatic Acoustic Management (AAM), 33
Automatic Defect Retirement, 28
B
H
Host Interface Commands, 33
Identify Drive, 39
S.M.A.R.T., 35
Set Features, 46
Hot Plug Support, 28
I
Input Voltage Requirements, 14
Installation and Setup, 47
Internal Environmental Protection System, 27
J
Buffer Size, 11
Bytes per Sector, 12
Jumper Settings, 51
Jumper Settings Diagram, 51
C
L
CacheFlow6, 30
Commands
SCT, 35
Cooling, 17
Airflow, 17
Current Requirements, 14
LED
active status, 30
activity indication, 30
Load/unload cycles, 11
Logical Block Addressing
48-bit, 31
D
Data Lifeguard, 26
Data Transfer Rate, 11
DC Magnetic Field Susceptibility, 18
Defect Management, 27
Device Plug Connector Pin Definitions, 19
Dimensions, 12
E
M
Magnetic Field Immunity, 18
Maintenance, 52
Model number specification, 21
Mounting Restrictions
Orientation, 49
Screw Size Limitations, 49
P
Electromagnetic Field, 18
Error Rate, 11
Error Recovery Process, 28
Perpendicular Magnetic Recording (PMR), 23
Power Conservation, 31
Power Dissipation, 14, 16
F
Fluid Dynamic Bearings (FDB), 30
R
Read Cache, 31
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55
Recording Method, 12
Reduced Power Spinup (RPS), 24
Reliability features set, 26
Ripple, 14
RoHS (Restriction of Hazardous Substances),
18
Rotational Speed, 11
Container Inspection, 48
Drive Removal - Container, 48
Drive Removal - Static Shielding Bag, 48
Handling Precautions, 47
Moving Precautions, 48
User Sectors per Drive, 12
V
S
Vibration, 15
S.M.A.R.T., 32
S.M.A.R.T. Command Transport (SCT), 25
SATA 1.5 Gb/s, 23
SATA 3 Gb/s, 23
SCT, 25
SCT commands, 35
SCT feature set
temperature reporting, 25
Security Mode, 32
Passwords, 32
Security Levels, 32
Seek Time, 11
Servo Type, 12
Shock, 15
Specifications, 11
Electrical, 14
Environmental, 15
Mechanical, 13
Performance, 11
Physical, 12
Reliability, 19
Spindle Start Time, 11
Staggered Spinup, 30
System-on-Chip (SOC), 24
W
Write Cache, 31
T
Temperature
airflow, 17
cooling, 17
thermocouple location, 16
Temperature and Humidity, 16
Thermal Management, 26
Thermocouple location, 16
U
Unpacking
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