Seagate ST3500641NS User Manual

Product Manual  
®
NL35 Series 7200.2 Serial ATA  
ST3500841NS  
ST3500641NS  
100390104  
Rev. C  
August 2007  
Contents  
5.0  
NL35 Series 7200.2 SATA Product Manual, Rev. C  
i
ii  
NL35 Series 7200.2 SATA Product Manual, Rev. C  
1.0  
Introduction  
This manual describes the functional, mechanical and interface specifications for the following Seagate  
NL35 Series 7200.2 Serial ATA model drives:  
NL35 Series 7200.2 Serial ATA  
• ST3500841NS  
• ST3500641NS  
These drives provide the following key features:  
• 7,200 RPM spindle speed.  
• 8 Mbyte buffer on ST3500841NS drives  
16 Mbyte buffer on ST3500641NS drives  
• High instantaneous (burst) data-transfer rates.  
• Tunneling Magnetoresistive (TMR) recording heads.  
• State-of-the-art cache and on-the-fly error-correction algorithms.  
• Native Command Queueing with command ordering to increase performance in demanding applications.  
• Full-track multiple-sector transfer capability without local processor intervention.  
• Quiet operation.  
• 350 Gs nonoperating shock.  
• SeaTools diagnostic software performs a drive self-test that eliminates unnecessary drive returns.  
• Support for S.M.A.R.T. drive monitoring and reporting.  
• Supports latching SATA cables and connectors.  
• Supports hotplug operation per SATA II specification.  
• Supports S.M.A.R.T. Command Transport (SCT) to provide enterprise-like features in an industry-accepted  
transport mechanism. See Section 4.3.3.1 for additional information about SCT.  
• Supports the Write Same command to allow large writes without host interface overhead.  
• Supports Error Recovery Control to allow the host to put a soft time limit on read and write commands.  
• One-Step Microcode Download which allows enterprise clients to download new drive code with a single  
download command using the host download utility.  
• Workload management features to manage drive temperature and activity. This optimizes drive reliability in  
nearline environments with no user intervention required.  
NL35 Series 7200.2 SATA Product Manual, Rev. C  
1
         
1.1  
About the Serial ATA interface  
The Serial ATA interface provides several advantages over the traditional (parallel) ATA interface. The primary  
advantages include:  
• Easy installation and configuration with true plug-and-play connectivity. It is not necessary to set any jump-  
ers or other configuration options.  
• Thinner and more flexible cabling for improved enclosure airflow and ease of installation.  
• Scalability to higher performance levels.  
In addition, Serial ATA makes the transition from parallel ATA easy by providing legacy software support. Serial  
ATA was designed to allow you to install a Serial ATA host adapter and Serial ATA disc drive in your current  
system and expect all of your existing applications to work as normal.  
The Serial ATA interface connects each disc drive in a point-to-point configuration with the Serial ATA host  
adapter. There is no master/slave relationship with Serial ATA devices like there is with parallel ATA. If two  
drives are attached on one Serial ATA host adapter, the host operating system views the two devices as if they  
were both “masters” on two separate ports. This essentially means both drives behave as if they are Device 0  
(master) devices.  
Note. The host adapter may, optionally, emulate a master/slave environment to host software where two  
devices on separate Serial ATA ports are represented to host software as a Device 0 (master) and  
Device 1 (slave) accessed at the same set of host bus addresses. A host adapter that emulates a  
master/slave environment manages two sets of shadow registers. This is not a typical Serial ATA  
environment.  
The Serial ATA host adapter and drive share the function of emulating parallel ATA device behavior to provide  
backward compatibility with existing host systems and software. The Command and Control Block registers,  
PIO and DMA data transfers, resets, and interrupts are all emulated.  
The Serial ATA host adapter contains a set of registers that shadow the contents of the traditional device regis-  
ters, referred to as the Shadow Register Block. All Serial ATA devices behave like Device 0 devices. For addi-  
tional information about how Serial ATA emulates parallel ATA, refer to the “Serial ATA: High Speed Serialized  
2
NL35 Series 7200.2 SATA Product Manual, Rev. C  
       
2.0  
Drive specifications  
Unless otherwise noted, all specifications are measured under ambient conditions, at 25°C, and nominal  
power. For convenience, the phrases the drive and this drive are used throughout this manual to indicate  
ST3500841NS and ST3500641NS models.  
2.1  
Formatted capacity*  
Model  
ST3500641NS and ST3500841NS  
Formatted capacity  
Guaranteed sectors  
Bytes per sector  
500 Gbytes  
976,773,168  
512  
*One Gbyte equals one billion bytes when referring to hard drive capacity. Accessible capacity may vary  
depending on operating environment and formatting.  
2.1.1  
LBA mode  
When addressing these drives in LBA mode, all blocks (sectors) are consecutively numbered from 0 to n–1,  
where n is the number of guaranteed sectors as defined above.  
See Section 4.3.1, "Identify Device command" (words 60-61 and 100-103) for additional information about 48-  
bit addressing support of drives with capacities over 137 Gbytes.  
2.2  
Default logical geometry  
Cylinders  
Read/write heads  
Sectors per track  
63  
16,383  
16  
LBA mode  
When addressing these drives in LBA mode, all blocks (sectors) are consecutively numbered from 0 to n–1,  
where n is the number of guaranteed sectors as defined above.  
NL35 Series 7200.2 SATA Product Manual, Rev. C  
3
                                       
2.3  
Recording and interface technology  
Interface  
Serial ATA (SATA)  
Recording method  
16/17 EPRML  
790.7k  
134.4k  
106.35  
7,200  
754  
Recording density BPI (bits/inch max)  
Track density TPI (tracks/inch avg)  
2
Areal density (Gbits/inch avg)  
Spindle speed (RPM) (± 0.2%)  
Internal data transfer rate (Mbits/sec max)  
Sustained transfer rate (Mbytes/sec)  
I/O data-transfer rate (Mbytes/sec max)  
Interleave  
65  
300  
1:1  
Cache buffer  
8 Mbytes (8,192 kbytes) on ST3500841NS drives  
16 Mbytes (16,384 kbytes) on ST3500641NS drives.  
2.4  
Physical characteristics  
Maximum height  
(mm)  
(inches)  
26.11  
1.028  
Maximum width  
(mm)  
101.85  
4.010  
(inches)  
Maximum length  
(mm)  
146.99  
5.787  
(inches)  
Maximum weight  
(grams)  
710  
1.57  
(pounds)  
2.5  
Seek time  
Seek measurements are taken with nominal power at 25°C ambient temperature. All times are measured using  
drive diagnostics. The specifications in the table below are defined as follows:  
• Track-to-track seek time is an average of all possible single-track seeks in both directions.  
• Average seek time is a true statistical random average of at least 5,000 measurements of seeks between  
random tracks, less overhead.  
Typical seek times (msec)  
Track-to-track  
Read  
0.8  
Write  
1.0  
Average  
8.0  
9.0  
Average latency:  
4.16  
4.16  
Note. These drives are designed to consistently meet the seek times represented in this manual. Physical  
seeks, regardless of mode (such as track-to-track and average), are expected to meet the noted  
values. However, due to the manner in which these drives are formatted, benchmark tests that  
include command overhead or measure logical seeks may produce results that vary from these  
specifications.  
4
NL35 Series 7200.2 SATA Product Manual, Rev. C  
                                                           
2.6  
Start/stop times  
Power-on to Ready (sec)  
10 (max)  
10 (max)  
12 (max)  
Standby to Ready (sec)  
Ready to spindle stop (sec)  
2.7  
Power specifications  
The drive receives DC power (+5V or +12V) through a native SATA power connector. See Figure 3 on page 16.  
2.7.1 Power consumption  
Power requirements for the drives are listed in the table on page 9. Typical power measurements are based on  
an average of drives tested, under nominal conditions, using 5.0V and 12.0V input voltage at 25°C ambient  
temperature.  
• Spinup power  
Spinup power is measured from power-on to the time that the drive spindle reaches operating speed.  
• Seek mode  
During seek mode, the read/write actuator arm moves toward a specific position on the disc surface and  
does not execute a read or write operation. Servo electronics are active. Seek mode power represents the  
worst-case power consumption, using only random seeks with read or write latency time. This mode is not  
typical and is provided for worst-case information.  
• Read/write power and current  
Read/write power is measured with the heads on track, based on a 16-sector write followed by a 32-msec  
delay, then a 16-sector read followed by a 32-msec delay.  
• Operating power and current  
Operating power is measured using 40 percent random seeks, 40 percent read/write mode (1 write for each  
10 reads) and 20 percent drive idle mode.  
• Idle mode power  
Idle mode power is measured with the drive up to speed, with servo electronics active and with the heads in  
a random track location.  
• Standby mode  
During Standby mode, the drive accepts commands, but the drive is not spinning, and the servo and read/  
write electronics are in power-down mode.  
Table 1:  
DC power requirements  
Power dissipation  
Average (25° C)  
2.9 Amps  
Spinup  
Idle*  
10.40 watts  
13.00 watts  
12.60 watts  
0.80 watts  
Operating (40% r/w, 40% seek, 20% inop.)  
Seeking (random, 20% idle)  
Standby  
Sleep  
0.80 watts  
*During periods of drive idle, some offline activity may occur according to the S.M.A.R.T. specification, which may increase  
acoustic and power to operational levels.  
NL35 Series 7200.2 SATA Product Manual, Rev. C  
5
                                                                   
2.7.1.1  
Typical current profile  
Figure 1. Typical 12V startup and operation current profile  
2.7.2  
Conducted noise  
Input noise ripple is measured at the host system power supply across an equivalent 80-ohm resistive load on  
the +12 volt line or an equivalent 15-ohm resistive load on the +5 volt line.  
• Using 12-volt power, the drive is expected to operate with a maximum of 120 mV peak-to-peak square-wave  
injected noise at up to 10 MHz.  
• Using 5-volt power, the drive is expected to operate with a maximum of 100 mV peak-to-peak square-wave  
injected noise at up to 10 MHz.  
Note. Equivalent resistance is calculated by dividing the nominal voltage by the typical RMS read/write  
current.  
2.7.3  
Voltage tolerance  
Voltage tolerance (including noise):  
5V ± 5%  
12V ± 10%  
6
NL35 Series 7200.2 SATA Product Manual, Rev. C  
               
2.7.4  
Power-management modes  
The drive provides programmable power management to provide greater energy efficiency. In most systems,  
you can control power management through the system setup program. The drive features the following  
power-management modes:  
Power modes  
Active  
Heads  
Spindle  
Rotating  
Rotating  
Stopped  
Stopped  
Buffer  
Tracking  
Tracking  
Parked  
Parked  
Enabled  
Enabled  
Enabled  
Disabled  
Idle  
Standby  
Sleep  
Active mode  
The drive is in Active mode during the read/write and seek operations.  
• Idle mode  
The buffer remains enabled, and the drive accepts all commands and returns to Active mode any time disc  
access is necessary.  
Standby mode  
The drive enters Standby mode when the host sends a Standby Immediate command. If the host has set  
the standby timer, the drive can also enter Standby mode automatically after the drive has been inactive for  
a specifiable length of time. The standby timer delay is established using a Standby or Idle command. In  
Standby mode, the drive buffer is enabled, the heads are parked and the spindle is at rest. The drive  
accepts all commands and returns to Active mode any time disc access is necessary.  
• Sleep mode  
The drive enters Sleep mode after receiving a Sleep command from the host. In Sleep mode, the drive  
buffer is disabled, the heads are parked and the spindle is at rest. The drive leaves Sleep mode after it  
receives a Hard Reset or Soft Reset from the host. After receiving a reset, the drive exits Sleep mode and  
enters Standby mode with all current translation parameters intact.  
• Idle and Standby timers  
Each time the drive performs an Active function (read, write or seek), the standby timer is reinitialized and  
begins counting down from its specified delay times to zero. If the standby timer reaches zero before any  
drive activity is required, the drive makes a transition to Standby mode. In both Idle and Standby mode, the  
drive accepts all commands and returns to Active mode when disc access is necessary.  
NL35 Series 7200.2 SATA Product Manual, Rev. C  
7
                             
2.8  
Environmental specifications  
Ambient temperature  
2.8.1  
Ambient temperature is defined as the temperature of the environment immediately surrounding the drive.  
Actual drive case temperature should not exceed 69°C (156°F) within the operating ambient conditions.  
Above 1,000 feet (305 meters), the maximum temperature is derated linearly to 112°F (44°C) at 10,000 feet  
(3,048 meters).  
Operating:  
0° to 60°C (32° to 140°F)  
Nonoperating:  
–40° to 70°C (–40° to 158°F)  
2.8.2  
Temperature gradient  
Operating:  
20°C per hour (68°F per hour max), without condensation  
30°C per hour (86°F per hour max)  
Nonoperating:  
2.8.3  
2.8.3.1  
Humidity  
Relative humidity  
Operating:  
Nonoperating:  
5% to 90% noncondensing (30% per hour max)  
5% to 95% noncondensing (30% per hour max)  
2.8.3.2  
Wet bulb temperature  
Operating:  
37.7°C (99.9°F max)  
40°C (104°F max)  
Nonoperating:  
2.8.4  
Altitude  
Operating:  
–60.96 m to 3,048 m (–200 ft. to 10,000+ ft.)  
–60.96 m to 12,192 m (–200 ft. to 40,000+ ft.)  
Nonoperating:  
2.8.5  
Shock  
All shock specifications assume that the drive is mounted securely with the input shock applied at the drive  
mounting screws. Shock may be applied in the X, Y or Z axis.  
2.8.5.1  
Operating shock  
These drives comply with the performance levels specified in this document when subjected to a maximum  
operating shock of 63 Gs based on half-sine shock pulses of 2 msec. Shocks should not be repeated more  
than two times per second.  
2.8.5.2  
Nonoperating shock  
The nonoperating shock level that the drive can experience without incurring physical damage or degradation  
in performance when subsequently put into operation is 350 Gs based on a nonrepetitive half-sine shock pulse  
of 2 msec duration.  
8
NL35 Series 7200.2 SATA Product Manual, Rev. C  
                                         
2.8.6  
Vibration  
All vibration specifications assume that the drive is mounted securely with the input vibration applied at the  
drive mounting screws. Vibration may be applied in the X, Y or Z axis.  
2.8.6.1  
Operating vibration  
The maximum vibration levels that the drive may experience while meeting the performance standards speci-  
fied in this document are specified below.  
5–22 Hz  
0.25 Gs (Limited displacement)  
23–350 Hz  
351–500 Hz  
0.50 Gs  
0.25 Gs  
2.8.6.2  
Nonoperating vibration  
The maximum nonoperating vibration levels that the drive may experience without incurring physical damage  
or degradation in performance when subsequently put into operation are specified below.  
5–22 Hz  
0.25 Gs (Limited displacement)  
23–350 Hz  
351–500 Hz  
5.0 Gs  
1.0 Gs  
2.9  
Acoustics  
Drive acoustics are measured as overall A-weighted acoustic sound power levels (no pure tones). All mea-  
surements are consistent with ISO document 7779. Sound power measurements are taken under essentially  
free-field conditions over a reflecting plane. For all tests, the drive is oriented with the cover facing upward.  
Note. For seek mode tests, the drive is placed in seek mode only. The number of seeks per second is  
defined by the following equation:  
(Number of seeks per second = 0.4 / (average latency + average access time)  
Table 2:  
Fluid Dynamic Bearing (FDB) motor acoustics  
Idle*  
Quiet seek  
2.8 bels (typ)  
2.86 bels (max)  
2.9 bels (typ)  
2.93 bels (max)  
*During periods of drive idle, some offline activity may occur according to the S.M.A.R.T. specification, which  
may increase acoustic and power to operational levels.  
NL35 Series 7200.2 SATA Product Manual, Rev. C  
9
                 
2.10  
Electromagnetic immunity  
When properly installed in a representative host system, the drive operates without errors or degradation in  
performance when subjected to the radio frequency (RF) environments defined in the following table:  
Table 3:  
Test  
Radio frequency environments  
Description  
Performance level Reference standard  
Electrostatic discharge  
Radiated RF immunity  
Contact, HCP, VCP: ± 4 kV; Air: ± 8 kV  
B
A
EN 61000-4-2: 95  
80 to 1,000 MHz, 3 V/m,  
80% AM with 1 kHz sine  
900 MHz, 3 V/m, 50% pulse modulation @  
200 Hz  
EN 61000-4-3: 96  
ENV 50204: 95  
Electrical fast transient  
Surge immunity  
± 1 kV on AC mains, ± 0.5 kV on  
external I/O  
B
B
A
EN 61000-4-4: 95  
EN 61000-4-5: 95  
EN 61000-4-6: 97  
EN 61000-4-11: 94  
± 1 kV differential, ± 2 kV common, AC  
mains  
Conducted RF immunity  
Voltage dips, interrupts  
150 kHz to 80 MHz, 3 Vrms, 80% AM with  
1 kHz sine  
0% open, 5 seconds  
0% short, 5 seconds  
40%, 0.10 seconds  
70%, 0.01 seconds  
C
C
C
B
2.11  
Reliability  
14  
Nonrecoverable read errors  
Annualized Failure Rate (AFR)  
Contact start-stop cycles  
1 per 10 bits read, max  
0.34% (nominal power, 25°C ambient temperature)  
50,000 cycles  
(at nominal voltage and temperature, with 60 cycles per hour and a 50% duty  
cycle)  
Warranty  
5 years on distribution units.  
To determine the warranty for a specific drive, use a web browser to access the fol-  
lowing web page:  
From this page, click on the “Verify Your Warranty” link. You will be asked to provide  
the drive serial number, model number (or part number) and country of purchase.  
The system will display the warranty information for your drive.  
Preventive maintenance  
None required.  
10  
NL35 Series 7200.2 SATA Product Manual, Rev. C  
                                       
2.12  
Agency certification  
Safety certification  
2.12.1  
The drives are recognized in accordance with UL 1950 and CSA C22.2 (950) and meet all applicable sections  
of IEC950 and EN 60950 as tested by TUV North America.  
2.12.2  
Electromagnetic compatibility  
Hard drives that display the CE mark comply with the European Union (EU) requirements specified in the Elec-  
tromagnetic Compatibility Directive (89/336/EEC). Testing is performed to the levels specified by the product  
standards for Information Technology Equipment (ITE). Emission levels are defined by EN 55022, Class B and  
the immunity levels are defined by EN 55024.  
Seagate uses an independent laboratory to confirm compliance with the EC directives specified in the previous  
paragraph. Drives are tested in representative end-user systems. Although CE-marked Seagate drives comply  
with the directives when used in the test systems, we cannot guarantee that all systems will comply with the  
directives. The drive is designed for operation inside a properly designed enclosure, with properly shielded I/O  
cable (if necessary) and terminators on all unused I/O ports. Computer manufacturers and system integrators  
should confirm EMC compliance and provide CE marking for their products.  
Korean RRL  
If these drives have the Korea Ministry of Information and Communication (MIC) logo, they comply with para-  
graph 1 of Article 11 of the Electromagnetic Compatibility control Regulation and meet the Electromagnetic  
Compatibility (EMC) Framework requirements of the Radio Research Laboratory (RRL) Ministry of Information  
and Communication Republic of Korea.  
These drives have been tested and comply with the Electromagnetic Interference/Electromagnetic Susceptibil-  
ity (EMI/EMS) for Class B products. Drives are tested in a representative, end-user system by a Korean-recog-  
nized lab.  
• EUT name (model numbers): ST3500641NS and ST3500841NS  
• Certificate numbers:  
ST3500641NS  
ST3500841NS  
E-H011-05-3453 (B)  
E-H011-05-3453 (B)  
• Trade name or applicant: Seagate Technology  
• Manufacturing date: October 2005  
• Manufacturer/nationality: Singapore and China  
Australian C-Tick (N176)  
If these models have the C-Tick marking, they comply with the Australia/New Zealand Standard AS/NZS3548  
1995 and meet the Electromagnetic Compatibility (EMC) Framework requirements of the Australian Communi-  
cation Authority (ACA).  
2.12.3  
FCC verification  
These drives are intended to be contained solely within a personal computer or similar enclosure (not attached  
as an external device). As such, each drive is considered to be a subassembly even when it is individually mar-  
keted to the customer. As a subassembly, no Federal Communications Commission verification or certification  
of the device is required.  
Seagate Technology LLC has tested this device in enclosures as described above to ensure that the total  
assembly (enclosure, disc drive, motherboard, power supply, etc.) does comply with the limits for a Class B  
computing device, pursuant to Subpart J, Part 15 of the FCC rules. Operation with noncertified assemblies is  
likely to result in interference to radio and television reception.  
NL35 Series 7200.2 SATA Product Manual, Rev. C  
11  
                                                                     
Radio and television interference. This equipment generates and uses radio frequency energy and if not  
installed and used in strict accordance with the manufacturer’s instructions, may cause interference to radio  
and television reception.  
This equipment is designed to provide reasonable protection against such interference in a residential installa-  
tion. However, there is no guarantee that interference will not occur in a particular installation. If this equipment  
does cause interference to radio or television, which can be determined by turning the equipment on and off,  
you are encouraged to try one or more of the following corrective measures:  
• Reorient the receiving antenna.  
• Move the device to one side or the other of the radio or TV.  
• Move the device farther away from the radio or TV.  
• Plug the computer into a different outlet so that the receiver and computer are on different branch outlets.  
If necessary, you should consult your dealer or an experienced radio/television technician for additional sug-  
gestions. You may find helpful the following booklet prepared by the Federal Communications Commission:  
How to Identify and Resolve Radio-Television Interference Problems. This booklet is available from the Super-  
intendent of Documents, U.S. Government Printing Office, Washington, DC 20402. Refer to publication num-  
ber 004-000-00345-4.  
2.13  
Environmental protection  
Seagate designs its products to meet environmental protection requirements worldwide, including regulations  
restricting certain chemical substances.  
2.13.1  
European Union Restriction of Hazardous Substances (RoHS)  
Compliance statement  
The European Union Restriction of Hazardous Substances (RoHS) Directive restricts the presence of chemical  
substances, including Lead (Pb), in electronic products effective July 2006.  
A number of parts and materials in Seagate products are procured from external suppliers. We rely on the rep-  
resentations of our suppliers regarding the presence of RoHS substances in these parts and materials. Our  
supplier contracts require compliance with our chemical substance restrictions, and our suppliers document  
their compliance with our requirements by providing material content declarations for all parts and materials for  
the disc drives documented in this publication. Current supplier declarations include disclosure of the inclusion  
of any RoHS-regulated substance in such parts or materials.  
Seagate also has internal systems in place to ensure ongoing compliance with the RoHS Directive and all laws  
and regulations which restrict chemical content in electronic products. These systems include standard operat-  
ing procedures that ensure that restricted substances are not utilized in our manufacturing operations, labora-  
tory analytical validation testing, and an internal auditing process to ensure that all standard operating  
procedures are complied with.  
12  
NL35 Series 7200.2 SATA Product Manual, Rev. C  
       
2.14  
Corrosive environment  
Seagate electronic drive components pass accelerated corrosion testing equivalent to 10 years exposure to  
light industrial environments containing sulfurous gases, chlorine and nitric oxide, classes G and H per ASTM  
B845. However, this accelerated testing cannot duplicate every potential application environment. Users  
should use caution exposing any electronic components to uncontrolled chemical pollutants and corrosive  
chemicals as electronic drive component reliability can be affected by the installation environment. The silver,  
copper, nickel and gold films used in Seagate products are especially sensitive to the presence of sulfide, chlo-  
ride, and nitrate contaminants. Sulfur is found to be the most damaging. In addition, electronic components  
should never be exposed to condensing water on the surface of the printed circuit board assembly (PCBA) or  
exposed to an ambient relative humidity greater than 95%. Materials used in cabinet fabrication, such as vulca-  
nized rubber, that can outgas corrosive compounds should be minimized or eliminated. The useful life of any  
electronic equipment may be extended by replacing materials near circuitry with sulfide-free alternatives.  
NL35 Series 7200.2 SATA Product Manual, Rev. C  
13  
   
14  
NL35 Series 7200.2 SATA Product Manual, Rev. C  
3.0  
Configuring and mounting the drive  
This section contains the specifications and instructions for configuring and mounting the drive.  
3.1  
Handling and static-discharge precautions  
After unpacking, and before installation, the drive may be exposed to potential handling and electrostatic dis-  
charge (ESD) hazards. Observe the following standard handling and static-discharge precautions:  
Caution:  
• Before handling the drive, put on a grounded wrist strap, or ground yourself frequently by touching the metal  
chassis of a computer that is plugged into a grounded outlet. Wear a grounded wrist strap throughout the entire  
installation procedure.  
• Handle the drive by its edges or frame only.  
• The drive is extremely fragile—handle it with care. Do not press down on the drive top cover.  
• Always rest the drive on a padded, antistatic surface until you mount it in the computer.  
• Do not touch the connector pins or the printed circuit board.  
• Do not remove the factory-installed labels from the drive or cover them with additional labels. Removal voids  
the warranty. Some factory-installed labels contain information needed to service the drive. Other labels are  
used to seal out dirt and contamination.  
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15  
                   
3.2  
Configuring the drive  
Each drive on the Serial ATA interface connects in a point-to-point configuration with the Serial ATA host  
adapter. There is no master/slave relationship because each drive is considered a master in a point-to-point  
relationships. If two drives are attached on one Serial ATA host adapter, the host operating system views the  
two devices as if they were both “masters” on two separate ports. This means both drives behave as if they are  
Device 0 (master) devices.  
Serial ATA drives are designed for easy installation. It is usually not necessary to set any jumpers on the drive  
for proper operation; however, if you connect the drive and receive a “drive not detected” error, your SATA-  
equipped motherboard or host adapter may use a chipset that does not support SATA speed autonegotiation. If  
you have a motherboard or host adapter that does not support autonegotiation:  
• Install a jumper as shown in Figure 2 below to limit the data transfer rate to 1.5 Gbits per second (and leave  
the drive connected to the SATA-equipped motherboard or host adapter that doesn’t support autonegotiation)  
or  
• Install a SATA host adapter that supports autonegotiation, leave the drive jumper block set to “Normal  
operation” (see Figure 2 below), and connect the drive to that adapter. This option has the benefit of not limiting  
the drive to a 1.5 Gbits/sec transfer rate.  
Normal operation  
Limit data transfer rate to  
1.5 Gbits per second  
Jumper block  
SATA interface connector  
Figure 2. Jumper options  
SATA power connector  
3.3  
Serial ATA cables and connectors  
The Serial ATA interface cable consists of four conductors in two differential pairs, plus three ground connec-  
tions. The cable size may be 30 to 26 AWG with a maximum length of one meter (39.37 inches). See Table 4  
for connector pin definitions. Either end of the SATA signal cable can be attached to the drive or host.  
For direct backplane connection, the drive connectors are inserted directly into the host receptacle. The drive  
and the host receptacle incorporate features that enable the direct connection to be hot pluggable and blind  
mateable.  
For installations which require cables, you can connect the drive as illustrated in Figure 3.  
Signal connector  
Power connector  
Signal cable  
Power cable  
Figure 3. Attaching SATA cabling  
Each cable is keyed to ensure correct orientation. NL35 Series 7200.2 Serial ATA drives support latching SATA  
connectors.  
16  
NL35 Series 7200.2 SATA Product Manual, Rev. C  
             
3.4  
Drive mounting  
You can mount the drive in any orientation using four screws in the side-mounting holes or four screws in the  
bottom-mounting holes. See Figure 4 on page 17 for drive mounting dimensions. Follow these important  
mounting precautions when mounting the drive:  
• Allow a minimum clearance of 0.030 inches (0.76 mm) around the entire perimeter of the drive for cooling.  
• Use only 6-32 UNC mounting screws.  
• The screws should be inserted no more than 0.150 inch (3.81 mm) into the bottom or side mounting holes.  
• Do not overtighten the mounting screws (maximum torque: 6 inch-lb).  
[1]  
5.787 (146.9898) max.  
.250 + .015  
(6.35 + .381)  
(3x both sides)  
1.638  
(41.605) [1]  
1.122  
+ .020  
(28.499  
+ .508)  
[1]  
4.000  
(101.6)  
[1]  
4.000  
(101.6)  
1.028 max  
(26.111 max)  
[1]  
.138  
(3.505)  
.814  
(20.676)  
C of conn. Datum B  
L
2.00  
Notes:  
(50.80)  
Dimensions are shown in inches (mm).  
[1] Dimensions per SFF-8301 specification  
C of drive  
L
[1]  
2 x 3.750  
(2 x 95.25)  
2 x 1.625  
(2 x 41.28)  
[1]  
[1]  
2 x 1.750  
(2 x 44.45)  
4.000  
(101.6)  
[1]  
Figure 4. Mounting dimensions—top, side and end view  
NL35 Series 7200.2 SATA Product Manual, Rev. C  
17  
       
18  
NL35 Series 7200.2 SATA Product Manual, Rev. C  
4.0  
Serial ATA (SATA) interface  
These drives use the industry-standard Serial ATA interface that supports FIS data transfers. It supports ATA  
programmed input/output (PIO) modes 0–4; multiword DMA modes 0–2, and Ultra DMA modes 0–6.  
For detailed information about the Serial ATA interface, refer to the “Serial ATA: High Speed Serialized AT  
Attachment” specification.  
4.1  
Hot-Plug compatibility  
NL35 Series 7200.2 Serial ATA drives incorporate connectors which enable you to hot plug these drives in  
accordance with the Serial ATA II: Extension to Serial ATA 1.0a specification. This specification can be down-  
NL35 Series 7200.2 SATA Product Manual, Rev. C  
19  
         
4.2  
Serial ATA device plug connector pin definitions  
Table 4 summarizes the signals on the Serial ATA interface and power connectors..  
Table 4: Serial ATA connector pin definitions  
Segment Pin  
Function  
Ground  
A+  
Definition  
S1  
S2  
S3  
S4  
S5  
S6  
2nd mate  
Differential signal pair A from Phy  
A-  
Ground  
B-  
2nd mate  
Differential signal pair B from Phy  
B+  
Signal  
S7  
Ground  
2nd mate  
Key and spacing separate signal and power segments  
P1  
V33  
3.3V power  
P2  
V33  
3.3V power  
P3  
V33  
3.3V power, pre-charge, 2nd mate  
1st mate  
P4  
Ground  
Ground  
Ground  
V5  
P5  
2nd mate  
P6  
2nd mate  
P7  
5V power, pre-charge, 2nd mate  
5V power  
P8  
V5  
Power  
P9  
V5  
5V power  
P10  
P11  
P12  
P13  
P14  
P15  
Ground  
2nd mate  
Ground or LED signal If grounded, drive does not use deferred spin  
Ground  
V12  
1st mate.  
12V power, pre-charge, 2nd mate  
12V power  
V12  
V12  
12V power  
Notes:  
1. All pins are in a single row, with a 1.27 mm (0.050”) pitch.  
2. The comments on the mating sequence apply to the case of backplane blindmate connector only. In this  
case, the mating sequences are:  
• the ground pins P4 and P12.  
• the pre-charge power pins and the other ground pins.  
• the signal pins and the rest of the power pins.  
3. There are three power pins for each voltage. One pin from each voltage is used for pre-charge when  
installed in a blind-mate backplane configuration.  
4. All used voltage pins (Vx) must be terminated.  
20  
NL35 Series 7200.2 SATA Product Manual, Rev. C  
   
4.3  
Supported ATA commands  
The following table lists Serial ATA standard commands that the drive supports. For a detailed description of  
the ATA commands, refer to the Serial ATA: High Speed Serialized AT Attachment specification. See  
“S.M.A.R.T. commands” on page 27.for details and subcommands used in the S.M.A.R.T. implementation.  
Table 5:  
Supported ATA commands  
Command name  
Command code (in hex)  
98 or E5  
Check Power Mode  
Device Configuration Freeze Lock  
Device Configuration Identify  
Device Configuration Restore  
Device Configuration Set  
Device Reset  
H
H
B1 / C1  
H
H
B1 / C2  
H
H
H
H
B1 / C0  
H
B1 / C3  
H
08  
92  
90  
H
H
H
Download Microcode  
Execute Device Diagnostics  
Flush Cache  
E7  
H
Flush Cache Extended  
Format Track  
EA  
H
50  
H
Identify Device  
EC  
H
Idle  
97 or E3  
H
H
Idle Immediate  
95 or E1  
H
H
Initialize Device Parameters  
Read Buffer  
91  
H
E4  
H
Read DMA  
C8  
H
Read DMA Extended  
Read DMA Without Retries  
Read Log Ext  
25  
H
C9  
H
H
2F  
Read Multiple  
C4  
H
Read Multiple Extended  
Read Native Max Address  
Read Native Max Address Extended  
Read Sectors  
29  
H
F8  
H
H
H
H
H
H
H
H
H
27  
20  
24  
21  
40  
42  
41  
10  
Read Sectors Extended  
Read Sectors Without Retries  
Read Verify Sectors  
Read Verify Sectors Extended  
Read Verify Sectors Without Retries  
Recalibrate  
Security Disable Password  
Security Erase Prepare  
F6  
H
H
F3  
NL35 Series 7200.2 SATA Product Manual, Rev. C  
21  
                                                                         
Command name  
Security Erase Unit  
Security Freeze  
Security Set Password  
Security Unlock  
Seek  
Command code (in hex)  
F4  
F5  
F1  
F2  
H
H
H
H
H
70  
Set Features  
EF  
H
Set Max Address  
F9  
H
Note: Individual Set Max Address  
commands are identified by the value  
placed in the Set Max Features regis-  
ter as defined to the right.  
Address:  
Password:  
Lock:  
00  
01  
02  
03  
04  
H
H
H
H
H
Unlock:  
Freeze Lock:  
Set Max Address Extended  
Set Multiple Mode  
37  
H
C6  
H
Sleep  
99 or E6  
H
H
S.M.A.R.T. Disable Operations  
S.M.A.R.T. Enable/Disable Autosave  
S.M.A.R.T. Enable Operations  
S.M.A.R.T. Execute Offline  
S.M.A.R.T. Read Attribute Thresholds  
S.M.A.R.T. Read Data  
S.M.A.R.T. Read Log Sector  
S.M.A.R.T. Return Status  
S.M.A.R.T. Save Attribute Values  
S.M.A.R.T. Write Log Sector  
Standby  
B0 / D9  
H
H
B0 / D2  
H
H
H
H
H
H
H
B0 / D8  
H
B0 / D4  
H
B0 / D1  
H
B0 / D0  
H
B0 / D5  
H
B0 / DA  
H
H
H
H
B0 / D3  
H
B0 / D6  
H
96 or E2  
H
H
H
Standby Immediate  
94 or E0  
H
Write Buffer  
E8  
H
Write DMA  
CA  
H
Write DMA Extended  
35  
H
Write DMA FUA Extended  
Write DMA Without Retries  
Write Log Extended  
CD  
H
H
CB  
3F  
H
Write Multiple  
C5  
H
Write Multiple Extended  
Write Multiple FUA Extended  
Write Sectors  
39  
H
CE  
H
30  
31  
34  
H
Write Sectors Without Retries  
Write Sectors Extended  
H
H
22  
NL35 Series 7200.2 SATA Product Manual, Rev. C  
                                                                   
4.3.1  
Identify Device command  
The Identify Device command (command code EC ) transfers information about the drive to the host following  
H
power up. The data is organized as a single 512-byte block of data, whose contents are shown in Table 5 on  
page 21. All reserved bits or words should be set to zero. Parameters listed with an “x” are drive-specific or  
vary with the state of the drive. See Section 2.0 on page 3 for default parameter settings.  
The following commands contain drive-specific features that may not be included in the Serial ATA specifica-  
tion.  
Word  
Description  
Value  
0C5A  
Configuration information:  
• Bit 15: 0 = ATA; 1 = ATAPI  
• Bit 7: removable media  
• Bit 6: removable controller  
• Bit 0: reserved  
H
0
1
Number of logical cylinders  
16,383  
2
ATA-reserved  
0000  
H
3
Number of logical heads  
16  
4
Retired  
0000  
0000  
H
5
Retired  
H
6
Number of logical sectors per logical track: 63  
Retired  
003F  
H
H
7–9  
10–19  
20  
0000  
Serial number: (20 ASCII characters, 0000 = none)  
ASCII  
H
Retired  
Retired  
Obsolete  
0000  
0400  
0000  
x.xx  
H
H
H
21  
22  
23–26  
Firmware revision (8 ASCII character string, padded with blanks to end of  
string)  
27–46  
47  
Drive model number: (40 ASCII characters, padded with blanks to end of  
string)  
ST3500641NS  
ST3500841NS  
(Bits 7–0) Maximum sectors per interrupt on Read multiple and Write  
multiple (16)  
8010  
H
48  
Reserved  
0000  
H
49  
Standard Standby timer, IORDY supported and may be disabled  
ATA-reserved  
2F00  
H
H
H
H
H
50  
0000  
0200  
0200  
0007  
51  
PIO data-transfer cycle timing mode  
Retired  
52  
53  
Words 54–58, 64–70 and 88 are valid  
Number of current logical cylinders  
Number of current logical heads  
Number of current logical sectors per logical track  
Current capacity in sectors  
54  
xxxx  
xxxx  
xxxx  
xxxx  
xxxx  
H
55  
H
H
H
H
56  
57–58  
59  
Number of sectors transferred during a Read Multiple or Write Multiple  
command  
NL35 Series 7200.2 SATA Product Manual, Rev. C  
23  
   
Word  
Description  
Value  
60–61  
Total number of user-addressable LBA sectors available  
(see Section 2.1 for related information)  
0FFFFFFFh*  
*Note: The maximum value allowed in this field is: 0FFFFFFFh  
(268,435,455 sectors, 137 Gbytes). Drives with capacities over 137  
Gbytes will have 0FFFFFFFh in this field and the actual number of user-  
addressable LBAs specified in words 100-103. This is required for drives  
that support the 48-bit addressing feature.  
62  
63  
Retired  
0000  
H
Multiword DMA active and modes supported (see note following this  
table)  
xx07  
H
64  
65  
66  
67  
68  
Advanced PIO modes supported (modes 3 and 4 supported)  
Minimum multiword DMA transfer cycle time per word (120 nsec)  
Recommended multiword DMA transfer cycle time per word (120 nsec)  
Minimum PIO cycle time without IORDY flow control (240 nsec)  
Minimum PIO cycle time with IORDY flow control (120 nsec)  
0003  
0078  
0078  
H
H
H
00F0  
H
0078  
0000  
0000  
H
H
H
69–74  
75  
76  
77  
78  
79  
80  
81  
82  
83  
84  
85  
86  
87  
88  
89  
90  
92  
93  
ATA-reserved  
Queue depth  
Serial ATA capabilities  
xxxx  
xxxx  
xxxx  
xxxx  
H
Reserved for future Serial ATA definition  
Serial ATA features supported  
Serial ATA features enabled  
Major version number  
H
H
H
003E  
H
H
Minor version number  
0000  
Command sets supported  
Command sets supported  
Command sets support extension  
Command sets enabled  
364B  
H
7C03  
H
4003  
H
30xx  
H
Command sets enabled  
0001  
4000  
H
H
H
Command sets enable extension  
Ultra DMA support and current mode (see note following this table)  
Security erase time  
xx3F  
0000  
0000  
H
H
Enhanced security erase time  
Master password revision code  
FFFE  
H
Hardware reset value  
(see description following this table)  
xxxx  
H
95–99  
ATA-reserved  
0000  
H
100–  
103  
Total number of user-addressable LBA sectors available (see Section 2.1  
for related information). These words are required for drives that support  
the 48-bit addressing feature. Maximum value: 0000FFFFFFFFFFFFh.  
ST3500641NS = 976,773,168  
ST3500841NS = 976,773,168  
104–  
127  
ATA-reserved  
0000  
0001  
H
H
128  
Security status  
24  
NL35 Series 7200.2 SATA Product Manual, Rev. C  
Word  
Description  
Value  
xxxx  
129–  
159  
Seagate-reserved  
H
160–  
254  
ATA-reserved  
Integrity word  
0000  
xxA5  
H
H
255  
Note. Advanced Power Management (APM) and Automatic Acoustic Management (AAM) features are not supported  
Note. See the bit descriptions below for words 63, 88, and 93 of the Identify Drive data.  
Description (if bit is set to 1)  
Bit  
0
Word 63  
Multiword DMA mode 0 is supported.  
Multiword DMA mode 1 is supported.  
Multiword DMA mode 2 is supported.  
Multiword DMA mode 0 is currently active.  
Multiword DMA mode 1 is currently active.  
Multiword DMA mode 2 is currently active.  
Word 88  
1
2
8
9
10  
Bit  
0
Ultra DMA mode 0 is supported.  
Ultra DMA mode 1 is supported.  
Ultra DMA mode 2 is supported.  
Ultra DMA mode 3 is supported.  
Ultra DMA mode 4 is supported.  
Ultra DMA mode 5 is supported.  
Ultra DMA mode 6 is supported.  
Ultra DMA mode 0 is currently active.  
Ultra DMA mode 1 is currently active.  
Ultra DMA mode 2 is currently active.  
Ultra DMA mode 3 is currently active.  
Ultra DMA mode 4 is currently active.  
Ultra DMA mode 5 is currently active.  
Ultra DMA mode 6 is currently active.  
1
2
3
4
5
6
8
9
10  
11  
12  
13  
14  
NL35 Series 7200.2 SATA Product Manual, Rev. C  
25  
4.3.2  
Set Features command  
This command controls the implementation of various features that the drive supports. When the drive receives  
this command, it sets BSY, checks the contents of the Features register, clears BSY and generates an inter-  
rupt. If the value in the register does not represent a feature that the drive supports, the command is aborted.  
Power-on default has the read look-ahead and write caching features enabled. The acceptable values for the  
Features register are defined as follows:  
Table 6:  
Set Features command values  
02  
03  
Enable write cache (default).  
H
Set transfer mode (based on value in Sector Count register).  
Sector Count register values:  
H
00 Set PIO mode to default (PIO mode 2).  
H
01 Set PIO mode to default and disable IORDY (PIO mode 2).  
H
08 PIO mode 0  
H
09 PIO mode 1  
H
0A PIO mode 2  
H
0B PIO mode 3  
H
0C PIO mode 4 (default)  
H
20 Multiword DMA mode 0  
H
21 Multiword DMA mode 1  
H
22 Multiword DMA mode 2  
H
40 Ultra DMA mode 0  
H
41 Ultra DMA mode 1  
H
42 Ultra DMA mode 2  
H
43 Ultra DMA mode 3  
H
44 Ultra DMA mode 4  
H
45 Ultra DMA mode 5  
H
46 Ultra DMA mode 6  
H
10  
55  
82  
90  
Enable use of SATA features  
H
H
H
H
Disable read look-ahead (read cache) feature.  
Disable write cache  
Disable use of SATA features  
AA  
Enable read look-ahead (read cache) feature (default).  
Report full capacity available  
H
F1  
H
Note. At power-on, or after a hardware or software reset, the default values of the features are as indi-  
cated above.  
26  
NL35 Series 7200.2 SATA Product Manual, Rev. C  
 
4.3.3  
S.M.A.R.T. commands  
S.M.A.R.T. provides near-term failure prediction for disc drives. When S.M.A.R.T. is enabled, the drive moni-  
tors predetermined drive attributes that are susceptible to degradation over time. If self-monitoring determines  
that a failure is likely, S.M.A.R.T. makes a status report available to the host. Not all failures are predictable.  
S.M.A.R.T. predictability is limited to the attributes the drive can monitor. For more information on S.M.A.R.T.  
commands and implementation, see the Draft ATA-5 Standard.  
SeaTools diagnostic software activates a built-in drive self-test (DST S.M.A.R.T. command for D4 ) that elimi-  
H
nates unnecessary drive returns. The diagnostic software ships with all new drives and is also available at:  
You must have a recent BIOS or software package that supports S.M.A.R.T. to use this S.M.A.R.T. commands.  
The table below shows the S.M.A.R.T. command codes that the drive uses.  
Table 7:  
S.M.A.R.T. commands  
Code in features register  
S.M.A.R.T. command  
D0  
D2  
D3  
D4  
D5  
D6  
D8  
D9  
S.M.A.R.T. Read Data  
H
H
H
H
H
H
H
H
S.M.A.R.T. Enable/Disable Attribute Autosave  
S.M.A.R.T. Save Attribute Values  
S.M.A.R.T. Execute Off-line Immediate (runs DST)  
S.M.A.R.T. Read Log Sector  
S.M.A.R.T. Write Log Sector  
S.M.A.R.T. Enable Operations  
S.M.A.R.T. Disable Operations  
S.M.A.R.T. Return Status  
DA  
H
Note. If an appropriate code is not written to the Features Register, the command is aborted and 0x04  
(abort) is written to the Error register.  
4.3.3.1  
S.M.A.R.T. Command Transport (SCT)  
NL35 Series 7200.2 Serial ATA drives implement SCT technologies to enable the drive to perform in a nearline  
storage environment.  
The command transport uses log sectors to pass-through commands, to inquire about status, and to control  
data flow. For detailed information about SCT, refer to the T13 working draft 1701DT-N, Rev. 5 (or later). T13  
working draft publications are available in PDF form at the following URL:  
http://www.t13.org/docs2005/DT1701r5-SCT.pdf  
Or, for the latest list of downloadable working drafts, go to the following URL and download the latest revision:  
NL35 Series 7200.2 SATA Product Manual, Rev. C  
27  
   
28  
NL35 Series 7200.2 SATA Product Manual, Rev. C  
5.0  
Seagate Technology support services  
Internet  
For information regarding Seagate products and services, visit www.seagate.com. Worldwide support is  
available 24 hours daily by email for your questions.  
Presales Support:  
Technical Support:  
Warranty Support:  
mySeagate  
my.seagate.com is the industry's first Web portal designed specifically for OEMs and distributors. It provides  
self-service access to critical applications, personalized content and the tools that allow our partners to  
manage their Seagate account functions. Submit pricing requests, orders and returns through a single,  
password-protected Web interface-anytime, anywhere in the world.  
spp.seagate.com  
spp.seagate.com supports Seagate resellers with product information, program benefits and sales tools. You  
may register for customized communications that are not available on the web. These communications contain  
product launch, EOL, pricing, promotions and other channel-related information. To learn more about the  
benefits or to register, go to spp.seagate.com, any time, from anywhere in the world.  
Seagate Service Centers  
Presales Support  
Our Presales Support staff can help you determine which Seagate products are best suited for your specific  
application or computer system, as well as product availability and compatibility.  
Technical Support  
Seagate technical support is available to assist you online at support.seagate.com or through one of our call  
centers. Have your system configuration information and your “ST” model number available.  
SeaTDD(+1-405-324-3655) is a telecommunications device for the deaf (TDD). You can send questions or  
comments 24 hours daily and exchange messages with a technical support specialist during normal business  
hours for the call center in your region.  
NL35 Series 7200.2 SATA Product Manual, Rev. C  
29  
   
Customer Service Operations  
Warranty Service  
Seagate offers worldwide customer support for Seagate products. Seagate distributors, OEMs and other direct  
customers should contact their Seagate Customer Service Operations (CSO) representative for warranty-  
related issues. Resellers or end users of drive products should contact their place of purchase or Seagate  
warranty service for assistance. Have your serial number and model or part number available.  
Data Recovery Services  
Seagate offers data recovery services for all formats and all brands of storage media. Our data recovery  
services labs are currently located throughout the world. . Additional information, including an online request  
form and data loss prevention resources, is available at http://services.seagate.com/index.aspx  
Authorized Service Centers  
Seagate Service Centers are available on a global basis for the return of defective products. Contact your  
customer support representative for the location nearest you.  
USA/Canada/Latin America support services  
For an extensive list of telephone numbers to technical support, presales and warranty service in USA/  
Canada/Latin America, including business hours, go to the "Contact Us" page on www.seagate.com.  
Global Customer Support  
Presales, Technical, and Warranty Support  
Call Center  
USA, Canada,  
and Mexico  
Toll-free  
Direct dial  
1-800-SEAGATE  
+1-405-324-4700  
Data Recovery Services  
Call Center  
Toll-free  
Direct dial  
FAX  
USA, Canada,  
and Mexico  
1-800-475-01435  
+1-905-474-2162  
1-800-475-0158  
+1-905-474-2459  
Europe, the Middle East and Africa Support Services  
For an extensive list of telephone numbers to technical support, presales and warranty service in Europe, the  
Middle East and Africa, go to the "Contact Us" page on www.seagate.com.  
Asia/Pacific Support Services  
For an extensive list of telephone numbers to technical support, presales and warranty service in Asia/Pacific,  
go to the "Contact Us" page on www.seagate.com.  
30  
NL35 Series 7200.2 SATA Product Manual, Rev. C  
Device Configuration Identify 21  
Device Configuration Restore 21  
Device Configuration Set 21  
Device Reset 21  
dimensions 17  
disc surface 5  
Index  
A
ACA 11  
acceleration 9  
acoustics 9  
Active 7  
Active mode 7  
actuator arm 5  
AFR 10  
Download Microcode 21  
E
Electrical fast transient 10  
Electromagnetic compatibility 11  
Electromagnetic Compatibility (EMC) 11  
Electromagnetic Compatibility control Regulation 11  
Electromagnetic Compatibility Directive (89/336/EEC)  
Electromagnetic immunity 10  
Electrostatic discharge 10  
electrostatic discharge (ESD) 15  
EN 55022, Class B 11  
EN 55024 11  
EN 60950 11  
Environmental specifications 8  
EPRML 4  
error-correction algorithms 1  
errors 10  
Agency certification 11  
altitude 8  
Ambient temperature 8  
ambient temperature 4, 5  
Annualized Failure Rate 10  
Areal density 4  
ATA commands 21  
Australia/New Zealand Standard AS/NZS3548 1995  
Australian Communication Authority (ACA) 11  
Australian C-Tick 11  
Average latency 4  
Average seek time 4  
B
buffer 4  
ESD 15  
European Union (EU) requirements 11  
Execute Device Diagnostics 21  
Bytes per sector 3  
C
F
cables and connectors 16  
Cache 4  
capacity 3  
case temperature 8  
CE mark 11  
certification 11  
Check Power Mode 21  
Class B computing device 11  
compatibility 11  
Conducted noise 6  
Conducted RF immunity 10  
Configuring the drive 15  
connectors 16  
FCC verification 11  
features 1  
Federal Communications Commission 11  
Flush Cache 21  
Flush Cache Extended 21  
Format Track 21  
Formatted capacity 3  
G
Gbytes 3  
geometry 3  
Gs 9  
Corrosive environment 13  
CSA C22.2 (950) 11  
cycles 10  
Guaranteed sectors 3  
guaranteed sectors 3  
Cylinders 3  
H
Handling precautions 15  
heads 3  
humidity 8  
D
data-transfer rates 1  
DC power 5  
Default logical geometry 3  
Device Configuration Freeze Lock 21  
I
I/O data-transfer rate 4  
NL35 Series 7200.2 SATA Product Manual, Rev. C  
31  
Identify Device 21  
Identify Device command 23  
Idle 7, 21  
point-to-point 2, 16  
Power consumption 5  
power consumption 5  
Power dissipation 5  
Idle Immediate 21  
Idle mode 5, 7  
Power modes 7  
IEC950 11  
Power specifications 5  
Power-management modes 7  
Power-on to Ready 5  
precautions 15  
printed circuit board 15  
programmable power management 7  
Information Technology Equipment (ITE) 11  
Initialize Device Parameters 21  
Input noise ripple 6  
input voltage 5  
Interface 4  
interface 19  
Interleave 4  
Internal data-transfer rate 4  
is 4  
R
Radiated RF immunity 10  
Radio and television interference 12  
radio frequency (RF) 10  
random seeks 5  
ISO document 7779 9  
ITE 11  
Read Buffer 21  
Read DMA 21  
K
Korea Ministry of Information and Communication Read DMA Extended 21  
(MIC) 11  
Korean RRL 11  
Read DMA without Retries 21  
read errors 10  
Read Log Ext 21  
Read Multiple 21  
L
Read Multiple Extended 21  
Read Native Max Address 21  
Read Native Max Address Extended 21  
Read Sectors 21  
Read Sectors Extended 21  
Read Sectors Without Retries 21  
Read Verify Sectors 21  
Read Verify Sectors Extended 21  
Read Verify Sectors Without Retries 21  
read/write actuator arm 5  
Read/write heads 3  
latency 4  
latency time 5  
LBA mode 3  
logical geometry 3  
M
maintenance 10  
master/slave 2  
maximum temperature 8  
MIC 11  
mounting 17  
Read/write power 5  
mounting screws 8  
mounting the drive 15  
Ready to spindle stop 5  
Recalibrate 21  
Recording density 4  
Recording method 4  
Recording technology 4  
relative humidity 8  
Reliability 10  
N
noise 6  
nominal power 4  
Nonoperating shock 8  
Nonoperating vibration 9  
Nonrecoverable read errors 10  
RMS read/write current 6  
RoHS 12  
RRL 11  
O
Operating power 5  
Operating shock 8  
Operating vibration 9  
S
S.M.A.R.T. Disable Operations 22  
S.M.A.R.T. Enable Operations 22  
S.M.A.R.T. Enable/Disable Autosave 22  
S.M.A.R.T. Execute Offline 22  
P
Physical characteristics 4  
S.M.A.R.T. implementation 21  
32  
NL35 Series 7200.2 SATA Product Manual, Rev. C  
S.M.A.R.T. Read Attribute Thresholds 22  
S.M.A.R.T. Read Data 22  
S.M.A.R.T. Read Log Sector 22  
S.M.A.R.T. Return Status 22  
S.M.A.R.T. Save Attribute Values 22  
S.M.A.R.T. Write Log sector 22  
Safety certification 11  
SATA 4, 19  
timer 7  
timers 7  
Track density 4  
Track-to-track 4  
Track-to-track seek time 4  
Tunneling Magnetoresistive (TMR) heads 1  
TUV North America 11  
screws 8  
U
sector 3  
sectors 3  
UL 1950 11  
Sectors per track 3  
Security Disable Password 21  
Security Erase Prepare 21  
Security Erase Unit 22  
Security Freeze 22  
Security Set Password 22  
Security Unlock 22  
Seek 22  
seek mode 5  
Seek mode power 5  
Seek time 4  
Seeking 5  
Serial ATA 4  
Serial ATA (SATA) interface 19  
serial ATA ports 2  
Servo electronics 5  
servo electronics 5  
Set Features 22  
Set Max Address 22  
Set Max Address Extended 22  
Set Multiple Mode 22  
Shock 8  
V
Vibration 9  
voltage 5  
Voltage dips, interrupts 10  
Voltage tolerance 6  
W
wet bulb temperature 8  
Write Buffer 22  
Write DMA 22  
Write DMA Extended 22  
Write DMA FUA Extended 22  
Write DMA Without Retries 22  
Write Log Extended 22  
Write Multiple 22  
Write Multiple Extended 22  
Write Multiple FUA Extended 22  
Write Sectors 22  
Write Sectors Extended 22  
Write Sectors Without Retries 22  
single-track seeks 4  
Sleep 5, 7, 22  
Sleep mode 7  
Spindle speed 4  
spindle stop 5  
Spinup 5  
Spinup power 5  
Standby 5, 7, 22  
Standby Immediate 22  
Standby mode 5, 7  
standby timer 7  
Standby to Ready 5  
Start/stop times 5  
start-stop cycles 10  
static-discharge 15  
support services 29  
Surge immunity 10  
T
technical support services 29  
temperature 4, 8  
temperature gradient 8  
NL35 Series 7200.2 SATA Product Manual, Rev. C  
33  
34  
NL35 Series 7200.2 SATA Product Manual, Rev. C  
Seagate Technology LLC  
920 Disc Drive, Scotts Valley, California 95066-4544, USA  
Publication Number: 100390104, Rev. C, Printed in USA  

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