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Product Manual Momentus ® XT 100610268 Re v . A March 2010 ST95005620AS ST93205620AS ST92505610AS.
Revision history © 2010 Se agate T echnology LLC. All rights reserved. Publication number: 1006 10268, Rev . A, March 2010 Seagate, Seagate T echnology and the W ave logo are registered tr ademarks of Seagate T echnology LLC in the United S tates and/or other countries.
Momentus XT Product Manual , Rev. A i Contents 1.0 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1.1 About the Serial ATA interface . . . . . . . . .
ii Momentus XT Product Ma nual, Rev. A.
Momentus XT Product Manual , Rev. A iii List of Figures Figure 1. Typical +5V only startup and operation curren t profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Figure 2. Serial ATA connectors . . . . . . . . . . . . . . . . .
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Momentus XT Product Manual , Rev. A 1 1.0 Introduction This manual describes the functiona l, mechanical an d interface specifications for the following Seagate Momentus ® XT model drives: These drives provide the following key fea tures: • 7200-RPM spindl e speed.
2 Moment us XT Produc t Manual, Rev. A 1.1 About the Serial A T A interface The Serial A T A interface provides several ad vanta ges over the traditional (p arallel) A T A interf ace. The prim ary advantages include : • Easy installation and configuration with true plug-and -p lay connectivity .
Momentus XT Product Manual , Rev. A 3 2.0 Drive specifications Unless otherwise noted, all specific ations are me asured unde r ambient conditions, at 25°C, and nominal power . 2.1 Spec ification summary t able The specifications listed in this tabl e are for quick reference.
4 Moment us XT Produc t Manual, Rev. A * On e Gbyte equals one billion bytes when referring to hard driv e capacity. Accessible capacit y may vary depending on operating environment and formatting. **During periods of drive idle, some offlin e activity may occur acco rding to the S.
Momentus XT Product Manual , Rev. A 5 2.2 Formatted cap acity Model Formatted capacity* Guaranteed sectors Bytes per sector ST95005620AS 500GB 976,773,168 512 ST93205620AS 320GB 625,142,448 512 ST92505610AS 250GB 488,397,168 512 *One GB equals one billion bytes when referring to hard driv e capacity.
6 Mome ntus XT Product M anual, Rev. A 2.4 Physical organization Drive model Read/write heads Number of discs ST95005620AS 4 2 ST93205620AS 3 ST92505610AS 2 1 2.
Momentus XT Product Manual , Rev. A 7 2.7 Seek time Seek measurement s are taken with nominal p ower at 25°C ambient temperature. All tim es are measured using drive diagnostics. The specifications in th e table belo w are defined as follows: • T ra ck-to-track s eek time is an average of all possible sing le-track s eeks in both directions.
8 Mome ntus XT Product M anual, Rev. A 2.9 Power specifications The drive receives DC power (+5V) thr ough a native SA T A power connector . 2.9.1 Power co nsumption Power requirement s for the drives are listed in the tab l e on page 8.
Momentus XT Product Manual , Rev. A 9 2.9.1.1 T ypical current prof ile Figure 1. T ypical +5V only startup and operation current prof ile.
10 Momentus XT Product Ma nual, Rev. A 2.9.2 C onducted noise Input noise ripp le is measured at the ho st system powe r supply across an equivalent 15-ohm resistive load on the +5V line. Using 5V power , th e drive is ex pected to oper ate with a m aximum of 10 0mV peak-to -peak square -wave injected nois e at up to 10 MHz.
Momentus XT Product Manual , Rev. A 11 2.9.4 Power-man agement mo des The drive provides progr ammable powe r management to provide gr eater energy effici ency .
12 Momentus XT Product M anual, Rev. A 2.10 Environment al specifications This section provides the temperature, humidity , shock, and vibration spec ifications for Momentus XT dr ives. 2.10.1 Ambient tempe rature Ambient temperatur e is defined as the temperatur e of th e environmen t immediatel y surr ounding the drive.
Momentus XT Product Manual , Rev. A 13 2.10.6 Shock All shock specifications assu me that the drive is mounted secu rely with the input shock applied at the drive mounting screws.
14 Momentus XT Product M anual, Rev. A *During periods of drive idle, some offli ne activity may occur according to the S.M. A.R.T. specification, which may increase ac oustic and power to operational levels . T est for Prominent Discret e T ones (PDT s) Seagate follo ws the ECM A-74 standards fo r measureme nt a nd id entification of PDT s.
Momentus XT Product Manual , Rev. A 15 2.14 Agency certification 2.14.1 Safety certification The drives are reco gnized in accordance with UL 60950-1 and CSA C22.2 (950) an d meet all applicable sec- tions of IEC 60950-1 and EN609 50-1 as tested by TUV North America.
16 Momentus XT Product Ma nual, Rev. A This equipment is designed to provide re asonable protecti on against such interference in a re sidential installa- tion. However , there is no guarantee that interference will not occur in a particular in stallation.
Momentus XT Product Manual , Rev. A 17 2.15 Environment al protection Seagate des igns its products to meet envi ronmental pr otection requirements worl dwide, including regulations restricting certain chemical substances.
18 Momentus XT Product Ma nual, Rev. A 2.16 Corrosive environment Seagate electronic dr ive component s pass accelerated corrosion testing equiva lent to 10 years exposure to light industrial environment s containing sulfurous g ases, chlorine and nitr ic oxide, classes G and H per ASTM B845.
Momentus XT Product Manual , Rev. A 19 3.0 Configuring and mounting the drive This section contains the specif ications an d instructions for configuring and mounting the drive.
20 Momentus XT Product Ma nual, Rev. A 3.2 Configuring the drive Each drive on th e Serial A T A interface connect s in a point-to-point configuration with the Serial A T A host adapter . There is no master/slave rela tionship because each drive is consid ered a master in a point-to-poin t relationships.
Momentus XT Product Manual , Rev. A 21 3.4 Drive mounting Y ou can moun t the drive using four screws in the side-mo unting holes or four scr e ws in the bottom-mounting holes. See Figure 4 for drive mounting dimensions. Follow these imp ortant mounting prec autions when mo unt- ing the drive: • Allow a minimum clearance of 0.
22 Momentus XT Product Ma nual, Rev. A 4.0 Serial A T A (SA T A) interface These drives use the industry-s tandard Ser ial A T A interfac e that supp orts FIS dat a transfers. It supports A T A programmed inpu t/output (PIO) mod es 0–4; multiword DMA modes 0–2 , and Ultra DMA mo des 0–6.
Momentus XT Product Manual , Rev. A 23 4.2 Serial A T A device plug conn ector pin definitions T able 7 summarizes the signals on the Seri al A T A interface an d power connectors. . 1. All pins are in a single row , with a 1.27 mm (0.050”) pitch. 2.
24 Momentus XT Product Ma nual, Rev. A 4.3 Supported A T A commands The following t able list s Serial A T A standard comman ds that the drive suppo rts. For a det ailed description of the A T A commands, refer to the Serial A T A: High S peed Serialized A T Att a chment specification .
Momentus XT Product Manual , Rev. A 25 S.M.A.R.T . Enable/Disable Autosave B0h/D2h S.M.A.R.T . Enable Operations B0h/D8h S.M.A.R.T . Enable/Disabl e Auto Offline B0h/DBh S.M.A.R.T . Enable One Attribute Modification B0h/E0h S.M.A.R.T . Execut e Offline B0h/D 4h S.
26 Momentus XT Product Ma nual, Rev. A 4.3.1 Identify D evice comman d The Identify Device command (command code EC H ) transfers information abo ut the drive to the host following power up. The dat a is organized as a single 51 2-byte bl ock of data, whose content s are shown in the table on page 27.
Momentus XT Product Manual , Rev. A 27 59 Number of sectors transferred during a Read Multiple or Wr ite Multiple command xxxx H 60–61 T otal number of user-addressable sectors This field contains a value that is one greater than the total number of user-addressable sectors.
28 Momentus XT Product Ma nual, Rev. A 100–103 T otal number of user-addressable LBA sectors available (see Secti on 2.2 for related information ) These words are required for drives that support the 48-bit addressing feature. Maximum value: 0000FFF FFFFFFFFFh .
Momentus XT Product Manual , Rev. A 29 4.3.2 Set Featu res command This command controls the implement ation of various feat ures that th e drive supports. When the drive receives this command, it sets BSY , checks the contents of the Features r egister , clears BSY and generate s an inter- rupt.
30 Momentus XT Product Ma nual, Rev. A 4.3.3 S.M.A.R.T . commands S.M.A.R.T . provides near-term failure prediction for d isc drives. When S.M.A.R.T . is enabled, the drive m oni- tors predetermined drive attributes that are suscep t ible to degradation ove r time.
Momentus XT Product Manual , Rev. A 31 5.0 Seagate T echnology support services Web For information regardin g Seagate product s and services, visit www .sea gate.co m . Worldwide support is available 24 hours daily by email fo r your questions. . W arranty Support: http://www .
32 Momentus XT Product Ma nual, Rev. A Customer Service Operations Presales Support Our Presales Support staf f can help you determine which Seagate product s are best suited for your specific application or comput er system, as well as product availability an d compatibility .
Momentus XT Product Manual , Rev. A 33 Index A ACA 15 acoustics 4 , 13 Active m ode 11 Address 24 AFR 14 Agency certification 15 Altitude 12 Altitude, nonoperating 4 Altitude, operating 4 Ambient temp.
34 Momentus XT Product Ma nual, Rev. A H handling 19 Handling precautions 19 heads 5 Height 3 height 6 humidity 4 I I/O data-transfer rate 3 , 6 Identify 24 Identify Device 24 Identify Device command .
Momentus XT Product Manual , Rev. A 35 read/write power and current 8 Recording density 3 , 6 Recording method 6 Recording technology 6 Relative humidity 4 , 12 Reliability 14 resistance 10 Retries 24 RF 14 RoHS 17 RPM 3 RRL 15 S S.M.A.R.T. 25 S.M.A.R.
36 Momentus XT Product Ma nual, Rev. A.
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Seagate T echnology LLC 920 Disc Drive, Scotts V alley , California 95066-4544, USA Publication Number: 1006102 68, Rev . A.
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