Seagate ST94811A Product Manual
  1. Manuals
  2. Brands
  3. Seagate Manuals
  4. Storage
  5. ST94811A
  6. Product manual
Seagate ST94811A Product Manual

Seagate ST94811A Product Manual

Product manual
Hide thumbs Also See for ST94811A:
Table of Contents

Advertisement

Quick Links

Download this manual See also: Installation Manual
Momentus 54
ST94011A
ST92011A
ST94811A
ST92811A

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the ST94811A and is the answer not in the manual?

Questions and answers

Related Manuals for Seagate ST94811A

Summary of Contents for Seagate ST94811A

  • Page 1 Momentus 54 ST94011A ST92011A ST94811A ST92811A...
  • Page 3 Momentus 54 ST94011A ST92011A ST94811A ST92811A...
  • Page 4 Seagate Technology LLC. Other product names are registered trade- marks or trademarks of their owners. Seagate reserves the right to change, without notice, product offerings or specifications. No part of this publication may be reproduced in any form without written permission of Seagate Technology LLC.
  • Page 5 Revision status summary sheet Revision Date Sheets Affected Rev. A 04/11/03 All. Rev. B 04/15/03 Update DC startup current profile. Rev. C 07/08/03 Pages 3, 4, 6, 7, 8, 12, 18, and 19. New format (all pages). Rev. D 12/03/03 Pages 29 through 31.

  • Page 7: Table Of Contents

    Seagate Technology support services ........
  • Page 8 Momentus Product Manual, Rev. E...
  • Page 9 List of Figures Figure 1. Momentus disc drive ............1 Figure 2.
  • Page 10 viii Momentus Product Manual, Rev. E...

  • Page 11: Introduction

    • ST92011A • ST92811A These drives provide the following key features: • 5,400-RPM spindle speed and 2-Mbyte buffer (8 Mbytes on ST94811A and ST92811A models) combine for superior performance. • Quiet operation. Fluid Dynamic Bearing (FDB) motor. • High instantaneous (burst) data transfer rates (up to 100 Mbytes per second) using Ultra DMA mode 5.
  • Page 12 Momentus Product Manual, Rev. E...

  • Page 13: 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 ST94011A, ST92011A, ST92811A, and ST94811A model drives. Specification summary The specifications listed in this table are for quick reference.
  • Page 14 Table 1: Specifications Drive specification ST94011A ST94811A ST92011A ST92811A Full-stroke seek (msec) 22 (typical); 26 (max) Seek power (typical) 2.4 watts Read/write power (typical) 2.4 watts Idle mode (typical) 1.2 watts Standby mode 0.36 watts (typical)** Sleep mode 0.36 watts (typical)** Voltage tolerance (including noise) 5V ±...

  • Page 15: Formatted Capacity

    Formatted capacity Model Formatted capacity Guaranteed sectors Bytes per sector ST94011A 40 Gbytes 78,140,160 ST94811A 40 Gbytes 78,140,160 ST92011A 20 Gbytes 39,070,080 ST92811A 20 Gbytes 39,070,080 Default logical geometry Cylinders Read/write heads Sectors per track 16,383 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.

  • Page 16: Recording And Interface Technology

    Sustained data transfer rate OD (Mbytes/sec max) 34.5 I/O data-transfer rate (Mbytes/sec max) 100 (Ultra DMA mode 5) Interleave Cache buffer ST94011A and ST92011A 2 Mbytes (2,048 kbytes) ST94811A and ST92811A 8 Mbytes (8,192 kbytes) Physical characteristics Height (mm) 9.5 +/-0.2 (inches) 0.374 +/-0.0078...

  • Page 17: Seek Time

    Seek time Seek measurements are taken with nominal power at 25°C ambient temperature. All times are measured using drive diagnostics. The specifications below are defined as follows: • Track-to-track seek time is an average of all possible single-track seeks in both directions. •...

  • Page 18: Power Specifications

    Power specifications The drive receives DC power (+5V) through the interface connector. 2.9.1 Power consumption Power requirements for the drives are listed in the table on page 8. Typical power measurements are based on an average of drives tested, under nominal conditions, using 5.0V input voltage at 25°C ambient temperature. •...

  • Page 19: Conducted Noise

    2.9.1.1 Typical current profile +5 Volt Current during spindle start — Typical Amperes Amps Seconds Figure 2. Typical 5V startup and operation current profile 2.9.2 Conducted noise Input noise ripple is measured at the host system power supply across an equivalent 15-ohm resistive load on the +5 volt line.

  • Page 20: Power-Management Modes

    2.9.4 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: Table 3: Power management modes Power modes Heads Spindle Buffer...

  • Page 21: Environmental Specifications

    2.10 Environmental specifications 2.10.1 Ambient temperature Ambient temperature is defined as the temperature of the environment immediately surrounding the drive. Actual drive case temperature should not exceed 60°C (140°F) within the operating ambient conditions. Above 1,000 feet (305 meters), the maximum temperature is derated linearly by 1°C every 1000 feet. Operating 5°...

  • Page 22: Shock

    2.10.5 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. 2.10.5.1 Operating shock These drives comply with the performance levels specified in this document when subjected to a maximum operating shock of 225 Gs based on half-sine shock pulses of 2 msec.

  • Page 23: Acoustics

    2.11 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.

  • Page 24: Reliability

    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.

  • Page 25: Fcc Verification

    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.
  • Page 26 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.

  • Page 27: Configuring And Mounting The Drive

    Configuring and mounting the drive This section contains the specifications and instructions for configuring and mounting the drive. 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: •...

  • Page 28: Cable-Select Option

    3.2.2 Cable-select option Computers that use cable select determine the master and slave drives by selecting or deselecting pin 28, CSEL, on the interface bus. Master and slave drives are determined by their physical position on the cable. To enable cable select, set a jumper as shown in Figure 3. Refer to your computer manual to determine whether your computer supports this option.

  • Page 29: Ata Interface

    ATA interface These drives use the industry-standard ATA task file interface that supports 16-bit data transfers. It supports ATA programmed input/output (PIO) modes 0–4; multiword DMA modes 0–2, and Ultra DMA modes 0–5. The drive also supports the use of the IORDY signal to provide reliable high-speed data transfers. For detailed information about the ATA interface, refer to the draft of AT Attachment with Packet Interface Extension (ATA/ATAPI-6), NCITS T13 1410D, subsequently referred to as the Draft ATA-6 Standard.

  • Page 30: Supported Ata Commands

    4.1.1 Supported ATA commands The following table lists ATA-standard commands that the drive supports. For a detailed description of the ATA commands, refer to the Draft ATA-6 Standard. See “S.M.A.R.T. commands” on page 27. for details and sub- commands used in the S.M.A.R.T. implementation. Table 7: Supported commands Command name...
  • Page 31 Table 7: Supported commands Command name Command code (in hex) Security Unlock Seek Set Drive Parameters Set Features Set Max Address Note: Individual Set Max com- Address: mands are identified by the value Password: placed in the Set Max Features Lock: register as defined to the right.
  • Page 32 Table 7: Supported commands Command name Command code (in hex) Security Freeze Lock Security Disable Password Momentus Product Manual, Rev. E...

  • Page 33: Identify Device Command

    (8 ASCII character string, padded with blanks to end of string) 27–46 Drive model number: (40 ASCII characters, padded with blanks to end of ST94011A string) ST92011A ST94811A ST92811A (Bits 7–0) Maximum sectors per interrupt on Read multiple and Write mul- 8010 tiple (16) Reserved...
  • Page 34 60–61 Total number of user-addressable LBA sectors available ST94011A = 78,140,160 ST92011A = 39,070,080 (see Section 2.2 for related information) ST94811A = 78,140,160 ST92811A = 39,070,080 Retired 0000 Multiword DMA active and modes supported (see note following this table) xx07...
  • Page 35 See the bit descriptions below for words 63, 88, 93 and 94 of the Identify Drive data: Note. Description (if bit is set to 1) 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.

  • Page 36: Set Features Command

    4.1.3 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.

  • Page 37: Commands

    ) that elimi- nates unnecessary drive returns. The diagnostic software ships with all new drives and is also available at: http://seatools.seagate.com. This drive is shipped with S.M.A.R.T. features disabled. You must have a recent BIOS or software package that supports S.M.A.R.T. to enable this feature. The table below shows the S.M.A.R.T. command codes that the drive uses.
  • Page 38 Momentus Product Manual, Rev. E...

  • Page 39: Compatibility Summary

    System Compatibility Seagate Product Assurance has tested Momentus drives in the systems listed below. Testing included multiple BIOS versions and operating systems. This testing was done to demonstrate compatibility with various hard- ware and software configurations.

  • Page 40: Bios Versions Tested

    BIOS versions tested The following list indicates the types of BIOS Seagate tested during the compatibility testing process. The list highlights the major BIOS manufacturers. Individual systems contain variations of these BIOS versions and were tested with regard to their implementation in the individual systems.

  • Page 41: Compatibility Test Configurations

    Seagate Momentus drives with other ATA/ATAPI-6 compliant peripherals. Software utilities The following is a brief overview of a some of the Seagate utilities used during the Seagate competitive analy- sis process. The Seagate SeaTools application is an exclusive disc drive diagnostic software designed to troubleshoot most hard drive issues.
  • Page 42 Momentus Product Manual, Rev. E...

  • Page 43: Seagate Technology Support Services

    (1-800-SEAGATE) is the Seagate toll-free number (1-800-732-4283) to access our automated self-help and directory assistance for Seagate support services. Using a touch-tone phone, you can find ser- vice and support phone numbers, answers to commonly asked questions, troubleshooting tips and specifica- tions for disc drives 24 hours daily.

  • Page 44: Technical Support

    Seagate service center representative for warranty-related issues. Resellers or end users of drive products should contact their place of purchase or one of the Seagate warranty service cen- ters for assistance. Have your drive’s “ST” model number and serial number available.
  • Page 45 European Support Services For presales and technical support in Europe, dial the toll-free number for your specific country. If your country is not listed here, dial our presales and technical support call center at +1-405-324-4714 from 8:00 . to 11:45 .
  • Page 46 Asia/Pacific Support Services For Asia/Pacific presales and technical support, dial the toll-free number for your specific country. The Asia/ Pacific toll-free numbers are available from 6:00 . to 10:45 . and 12:00 . to 6:00 . (Australian East- ern time) Monday through Friday, except as noted. If your country is not listed here, direct dial one of our tech- nical support locations.
  • Page 47 Index demonstrate compliance 31 density 6 Diagnostic Defense 1 Numerics diagnostic software 1 discs 5 3D Defense System 1 dissipation 8 Download Microcode 20 Drive Defense 1 acoustics 13 drive diagnostics 7 Active mode 10 drive monitoring 1 agency certification (regulatory) 14 drive self-test 1 altitude 11 DST 27...
  • Page 48 Idle and Standby timers 10 Idle Immediate 21 physical characteristics 6 Idle mode 10 physical organization 5 Idle mode power 8 pins 19 IEC950 14 PIO 19 Information Technology Equipment 14 power consumption 8 Initialize Device Parameters 20 power dissipation 8 interface 6 power management 10 interface signals 19...
  • Page 49 Security Disable Password 22 voltage tolerance 9 Security Erase Prepare 21 Security Erase Unit 21 Security Freeze Lock 22 Warranty 14 Security Set Password 21 weight 6 Security Unlock 21 wet bulb temperature 11 Seek 21 width 6 seek mode 8 Write Buffer 21 seek time 7 Write DMA 21...
  • Page 50 Momentus Product Manual, Rev. E...
  • Page 52 Seagate Technology LLC 920 Disc Drive, Scotts Valley, California 95066-4544, USA Publication Number: 100271718, Rev. E, Printed in USA...

This manual is also suitable for:

Momentus st94011aMomentus st92011aMomentus st92811aMomentus 54St94011aSt92011a ... Show all

Table of Contents