Seagate ST160LT011 - 9ZVG4D, ST160LT007 - 9ZV14D, ST160LT009 - 9WC14D, ST160LT014 - 9YK14D, ST250LT007 - 9ZV14C User Manual

...

Product Manual

Momentus® Thin

7200-RPM

ST model # - Part #

Standard models ST320LT007 - 9ZV142 ST250LT007 - 9ZV14C ST160LT007 - 9ZV14D

Free-Fall Sensor models ST320LT011 - 9ZVG42 ST250LT011 - 9ZVG4C ST160LT011 - 9ZVG4D

ST model # - Part #

SED model ST320LT014 - 9YK142 ST250LT014 - 9YK14C ST160LT014 - 9YK14D

SED (FIPS 140-2) models ST320LT009 - 9WC142 ST250LT009 - 9WC14C ST160LT009 - 9WC14D

Gen-2 100625253 Rev. C January 2011

Revision history

Revision Date Sheets affected or comments

Rev. A 06/02/10 Initial release. Rev. B 06/24/10 fc, 2, 4, 6, 21 & 26-28. Rev. C 01/04/11 5, 8, 15 & 20.

LLC in the United States and/or other countries. Momentus and SeaTools are either trademarks or registered trademarks of Seagate Technology LLC or one of its affiliated companies in the United States and/or other countries. The FIPS logo is a certification mark of NIST, which does not imply product endorsement by NIST, the U.S., or Canadian governments. All other trademarks or regis tered trademarks are the property of their respective owners.

No part of this publication may be reproduced in any form without written permission of Seagate Technology LLC. Call 877-PUB-TEK1 (877-782-8351) to request permission.

One gigabyte, or GB, equals one billion bytes and one terabyte, or TB, equals one trillion bytes. Your computer's operating system may use a different standard of measurement and report a lower capacity. In addition, some of the listed capacity is used for formatting and other functions, and thus will not be available for data storage. Seagate reserves the right to change, without notice, product offerings or specifications.

Contents

1.0 Seagate Technology support services. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

2.0 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

2.1 About the Serial ATA interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

3.0 Drive specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

3.1 Specification summary table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

3.2 Formatted capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

3.2.1 LBA mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

3.3 Default logical geometry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

3.4 Physical organization. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

3.5 Recording and interface technology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

3.6 Physical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

3.7 Seek time. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

3.8 Start/stop times . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

3.9 Power specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

3.9.1 Power consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

3.9.2 Deferred spinup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

3.9.3 Conducted noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

3.9.4 Voltage tolerance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

3.9.5 Power-management modes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

3.10 Environmental specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

3.10.1 Ambient temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

3.10.2 Temperature gradient. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

3.10.3 Humidity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

3.10.4 Altitude. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

3.10.5 Shock. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

3.10.6 Vibration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

3.11 Acoustics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

3.12 Electromagnetic immunity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

3.13 Reliability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

3.14 Agency certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

3.14.1 Safety certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

3.14.2 Electromagnetic compatibility. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

3.14.3 FCC verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

3.15 Environmental protection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

3.15.1 European Union Restriction of Hazardous Substances (RoHS) . . . . . . . . . . . . 17

3.15.2 China Restriction of Hazardous Substances (RoHS) Directive . . . . . . . . . . . . . 17

3.16 Corrosive environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

4.0 Configuring and mounting the drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

4.1 Handling and static-discharge precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

4.2 Configuring the drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

4.3 Serial ATA cables and connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

4.4 Drive mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

5.0 About FIPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

6.0 Serial ATA (SATA) interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

6.1 Hot-Plug compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

6.2 Serial ATA device plug connector pin definitions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

6.3 Supported ATA commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

6.3.1 Identify Device command. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

6.3.2 Set Features command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

6.3.3 S.M.A.R.T. commands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Momentus Thin Product Manual, Rev. C Gen-2 i

ii Momentus Thin Product Manual, Rev. C Gen-2

List of Figures

Figure 1. Typical +5V only startup and operation current profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Figure 2. Serial ATA connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Figure 3. Attaching SATA cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Figure 4. Mounting dimensions (for FIPS 140-2 models) — top, side and end view. . . . . . . . . . . . . . . 20

Figure 5. Mounting dimensions (for standard models) — top, side and end view. . . . . . . . . . . . . . . . . 21

Figure 6. Example of FIPS tamper evidence labels. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Momentus Thin Product Manual, Rev. C Gen-2 iii

1.0 Seagate Technology support services

SEAGATE ONLINE SUPPORT and SERVICES

For information regarding products and services, visit http://www.seagate.com/www/en-us/about/contact_us/

Available services include:

Presales & Technical support Global Support Services telephone numbers & business hours Authorized Service Centers

For information regarding Warranty Support, visit

http://www.sea

For information regarding Data Recovery Services, visit http://www.i365.com For Seagate OEM & Distribution partner portal, visit https://direct.seagate.com/portal/system For Seagate reseller portal, visit http://spp.seagate.com

gate.com/www/en-us/support/warranty_&_returns_assistance

Momentus Thin Product Manual, Rev. C Gen-2 1

2.0 Introduction

This manual describes the functional, mechanical and interface specifications for the following Seagate Momentus

ST model # Part # ST model # Part # ST model # Part # ST model # Part #

ST320LT007 9ZV142 ST320LT014 9YK142 ST320LT009 9WC142 ST320LT011 9ZVG42 ST250LT007 9ZV14C ST250LT014 9YK14C ST250LT009 9WC14C ST250LT011 9ZVG4C ST160LT007 9ZV14D ST160LT014 9YK14D ST160LT009 9WC14D ST160LT011 9ZVG4D

Thin model drives:

Standard models Standard SED models SED (FIPS 140-2) models Free-Fall Sensor models

Note. Previous generations of Seagate Self-Encrypting Drive models were called Full Disk Encryption

(FDE) models before a differentiation between drive-based encryption and other forms of encryp

tion was necessary.

Note. The Self-Encrypting Drive models indicated on the cover of this product manual have provisio ns for

“Security of Data at Rest” based on the standards defined by the Trusted Computing G roup (see

www.trustedcomputinggroup.org). For more information on FIPS 140-2 Level 2 certification See Section 5.0 on page 22 . These drives provide the following key features:

• 7200-RPM spindle speed.

• 16-MB buffer.

• Quiet operation. Fluid Dynamic Bearing (FDB) motor.

• High instantaneous (burst) data-transfer rates (up to 3Gb/s).

• Perpendicular recording technology.

• State-of-the-art cache and on-the-fly error-correction algorithms.

• Native Command Queuing (NCQ) with command ordering.

• Full-track multiple-sector transfer capability without local processor intervention.

• 1000 Gs nonoperating shock and 350 Gs of operating shock.

• SeaTools diagnostic software performs a drive self-test that eliminates unnecessary drive returns.

• The 3D Defense System™, which includes Drive Defense, Data Defense and Diagnostic Defense, offers the

industry’s most comprehensive protection for disk drives.

• Support for S.M.A.R.T. drive monitoring and reporting.

• Support for Read Multiple and Write Multiple commands.

2 Momentus Thin Product Manual, Rev. C Gen-2

Momentus Thin Self-Encrypting Drive models have the following additional features:

• Automatic data encryption/decryption

• Controlled access

• Random number generator

• Drive locking

• 16 independent data bands

• Cryptographic erase of user data for a drive that will be repurposed or scrapped

• Authenticated firmware download There is no significant performance difference between Self-Encrypting Drive and standard (non-Self-Encrypt-

ing Drive) models.

2.1 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 normally necessary to set any jumpers or other configuration op tio ns .

• 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 disk drive in your current system and expect all of your existing applications to work as normal.

The Serial ATA interface connects each disk 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 opera tin g 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 content s of the traditional de vice registers, referred to as the Shadow Register Block. All Serial ATA devices behave like Device 0 devices. For additional information about how Serial ATA emulates parallel ATA, refer to the “Serial ATA: High Speed Serialized AT Attachment” specification. The specification can be downloaded from http://www.serialata.org.

Momentus Thin Product Manual, Rev. C Gen-2 3

3.0 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 all models.

3.1 Specification summary table

The specifications listed in this table are for quick reference. For details on specification measurement or definition, see the appropriate section of this manual

Table 1: Drive specifications

ST320LT007 - 9ZV142 ST320LT009 - 9WC142

Drive specification

Formatted capacity (GB)* 320 250 160 Guaranteed logical blocks (LBA) 625,142,448 488,397,168 312,581,808 Bytes per physical sector 4096 Physical read/write heads 2 1 Disks 1 Cache (MB) 16 Recording density in BPI (bits/in avg) 1397k Track density TPI (tracks/in avg) 315k

Areal density (Gb/in Spindle speed (RPM) 7200 Average latency (ms) 4.17 Internal transfer rate (Mb/s max) 1247 I/O data transfer rate (Gb/s max) 3.0 ATA data-transfer modes supported SATA 1.0, Serial ATA Revision 2.6

Height (max) 7.0 mm (0.276 in) Width (max) 70.10 mm (2.76 in) Length (max) 100.55 mm (3.959 in) Weight (max) <92.0 g (<0.203 lb) Power-on to ready (sec typical) 3.5 Standby to ready (sec typical) 3.0 Track-to-track seek time, read (ms typical) 1.5 Average seek, read (ms typical) 11 Startup current, +5V (max) 1.0A

avg) 425

ST320LT011 - 9ZVG42 ST320LT014 - 9YK142

PIO modes 0–4 Multiword DMA modes 0–2 Ultra DMA modes 0–6

ST250LT007 - 9ZV14C ST250LT009 - 9WC14C ST250LT011 - 9ZVG4C ST250LT014 - 9YK14C

ST160LT007 - 9ZV14D ST160LT009 - 9WC14D ST160LT011 - 9ZVG4D ST160LT014 - 9YK14D

4 Momentus Thin Product Manual, Rev. C Gen-2

Table 1: Drive specifications

Drive specification

ST320LT007 - 9ZV142 ST320LT009 - 9WC142 ST320LT011 - 9ZVG42 ST320LT014 - 9YK142

ST250LT007 - 9ZV14C ST250LT009 - 9WC14C ST250LT011 - 9ZVG4C ST250LT014 - 9YK14C

ST160LT007 - 9ZV14D ST160LT009 - 9WC14D ST160LT011 - 9ZVG4D ST160LT014 - 9YK14D

Read/write power (typical) Read: 1.6W; Write: 1.9W Idle mode, low power (typical) 0.66W Standby/Sleep mode (typical) 0.15W *** Voltage tolerance (including noise) +5V ± 10% Ambient temperature 0° to 60°C (operating), –40° to 70°C (nonoperating) Temperature gradient

(°C per hour max)

20°C (operating) 35°C (nonoperating)

Relative humidity 5% to 95% (operating)

5% to 95% (nonoperating) Relative humidity gradient 30% per hour max Wet bulb temperature

(°C max) Altitude, operating –304.8 m to 3,048 m (–1000 ft. to 10,000 Altitude, nonoperating

37.7 (operating)

40 (nonoperating)

–304.8 m to 12,192 m (–1000 ft. to 40,000

+ ft.)

(meters below mean sea level, max) Shock, operating (Gs max at 2ms) 350 Shock, nonoperating (Gs max at 2ms) 800 Shock, nonoperating (Gs max at 1ms) 1000 Shock, nonoperating (Gs max at 0.5ms) 600 Vibration, operating (Swept Sine) 1.0 Gs (0 to peak, 5–500 Hz) Vibration, nonoperating 5.0 Gs (0 to peak, 5–500 Hz) Drive acoustics, sound power (bels) Idle** 2.3 (typical)

2.5 (max)

Seek 2.5 (typical)

2.7 (max)

Nonrecoverable read errors 1 per 10

bits read Annualized Failure Rate (AFR) 0.50% Load/Unload (U/UL) cycles

25°C, 50% relative humidity

32°C, 80% relative humidity 5°C, 80% relative humidity

600,000 software-controlled power on/off cycles 20,000 hard power on/off cycles

600,000 software-controlled power on/off cycles

20,000 hard power on/off cycles 5°C, 10% relative humidity 55°C, 16% relative humidity

Warranty To determine the warranty for a specific drive, use a web browser to access the following

web page: http://www.sea

gate.com/www/en-us/support/warranty_&_returns_assistance

You will be asked to provide the drive serial number, model number (or part number) and country of purchase. After submitting this information, the system will display the warranty information for your drive.

Supports Hotplug operation per Serial ATA

Yes (requires COMRESET from host after a hotplug event)

Revision 2.6 specification

*One GB equals one billion bytes when referring to hard drive capacity. Accessible capacity may vary depending on operating environment

and formatting.

**During periods of drive idle, some offline activity may occur according to the S.M.A.R.T. specification, which may incr ease acoustic and

power to operational levels.

***Typical notebooks will pull power to the drive when entering S3 and S4; while in the S3 and S4 states, drive sleep and drive standby

modes will not contribute to battery power consumption.

Momentus Thin Product Manual, Rev. C Gen-2 5

3.2 Formatted capacity

Formatted capacity* Guaranteed logical blocks (LBA) - 512 emulation Bytes per physical sector

ST320LT007 - 9ZV142 ST320LT009 - 9WC142 ST320LT011 - 9ZVG42 ST320LT014 - 9YK142

ST250LT007 - 9ZV14C ST250LT009 - 9WC14C ST250LT011 - 9ZVG4C ST250LT014 - 9YK14C

ST160LT007 - 9ZV14D ST160LT009 - 9WC14D ST160LT011 - 9ZVG4D ST160LT014 - 9YK14D

*One GB equals one billion bytes when referring to hard drive capacity. Accessible capacity may vary depending on operating environment

and formatting.

625,142,448

488,397,168

312,581,808

4096

3.2.1 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 logical blocks (LBA) as defined above. See Section 6.3.1, "Identify Device command" (words 60-61 and 100-103) for additional information about 48-

bit addressing support of drives with capacities over 137GB.

3.3 Default logical geometry

Cylinders Read/write heads Sectors per track

16,383 16 63

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 logical blocks (LBA) as defined above.

3.4 Physical organization

Models Read/write heads Number of disks

320GB models

160GB models 1

1250GB models

6 Momentus Thin Product Manual, Rev. C Gen-2

3.5 Recording and interface technology

4K sector models

Interface Serial ATA (SATA) Recording method Perpendicular Recording density BPI (bits/in avg) 1397k Track density TPI (tracks/in avg) 315k Areal density (Gb/in2 avg) 425 Spindle speed (RPM) (± 0.2%) 7200 Maximum Internal transfer rate (Mb/s) 1247 I/O data-transfer rate (Gb/s max) 3.0 Interleave 1:1 Cache buffer 16 MB (16,384 KB)

3.6 Physical characteristics

Drive specification

Height (mm)

(in)

Width (mm)

(in)

Length (mm)

(in)

Weight (max)

All models

6.8 +/-0.2

0.268 +/-0.0079

69.85 +/-0.25

2.75 +/-0.0098

100.35 +0.20/-0.25

3.951 +0.008/-0.010

92.0 g

0.203 lb

3.7 Seek time

Seek measurements are taken with nominal power at 25°C am bient 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

• Average seek time is a true statistical random aver random tracks, less overhead.

Table 2: Typical seek times

possible single-track seeks in both directions.

age of at least 5000 measurements of seeks between

Typical seek times (ms) Read

Track-to-track 1.5 Average 11 Average latency 4.17

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.

Momentus Thin Product Manual, Rev. C Gen-2 7

3.8 Start/stop times

Time to ready Typical

Power-on to Ready (sec) 3.5 4.0 Standby to Ready (sec) 3.0 3.0

Max @ 25°C

3.9 Power specifications

The drive receives DC power (+5V) through a native SATA power connector.

3.9.1 Power consumption

Power requirements for the drives are listed in the t ab le on an average of drives tested, under nominal conditions, at 25°C ambient temperature. These power measurements are done with Interface Power Management modes like HIPM and DIPM enabled.

• Spinup power

Spinup power is measured from the time of power-on to the

• Seek mode

During seek mode, the read/write actuator arm moves towar not execute a read or write operation. Servo electronics a re active . Seek m ode p ower is measur ed based on three random seek operations every 100ms. This mode is not typical.

• Read/write

power and current

Read/write power is measured with the heads on track, ba every 100ms.

page 8. T ypi cal powe r measur ements are based on

time that the drive spindle reaches operating speed.

d a specific position on the disk surface and does

sed on three 63 sector read or write operations

• Idle mode power

Idle mode power is measured with the drive up to speed, with a random track location.

• Standby mode

During Standby mode, the drive accepts commands, but th write electronics are in power-down model

Table 3: DC power

Power dissipation +5V input average (25° C)

Spinup (max) 1.00A Seek 1.6W Read 1.6W Write 1.9W Idle, performance* 1.3W Idle, active* 0.90W Idle, low power mode* 0.66W Standby** 0.15W Sleep 0.15W

servo electronics active and with the heads in

e drive is not spinning, and the ser vo and read/

*During periods of drive idle, some offline activity may occur according to the S.M.A.R.T. specification, which may increase acoustic and

8 Momentus Thin Product Manual, Rev. C Gen-2

+ 32 hidden pages