Краткое содержание страницы № 6
Краткое содержание страницы № 7
Contents 1.0 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2.0 Drive specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2.1 Specification summary table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2.2 Formatted capacity . . . . . . . . . . . . . . . . . . . .
Краткое содержание страницы № 8
vi Barracuda 7200.7 Product Manual, Rev. E
Краткое содержание страницы № 9
List of Figures Figure 1. Typical 5V startup and operation current profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Figure 2. Typical 12V startup and operation current profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Figure 3. Breather filter hole location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Figure 4. Master/slave jumper settings . . . . . . . . . . . . . . . . . .
Краткое содержание страницы № 10
viii Barracuda 7200.7 Product Manual, Rev. E
Краткое содержание страницы № 11
1.0 Introduction ® This manual describes the functional, mechanical and interface specifications for the following Seagate ® Barracuda 7200.7 model drives: Barracuda 7200.7 Plus ST3160023A ST3120026A ST380013A Barracuda 7200.7 ST3160021A ST3120022A ST380011A ST360014A ST340014A These drives provide the following key features: 7,200-RPM spindle speed and 2-Mbyte buffer (8 Mbytes on “Plus” models: ST3160023A, ST3120026A, and ST380013A) combine for superior desktop performance.
Краткое содержание страницы № 12
2 Barracuda 7200.7 Product Manual, Rev. E
Краткое содержание страницы № 13
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 ST3160021A, ST3160023A, ST3120022A, ST3120026A, ST380011A, ST380013A, ST360014A, and ST340014A model drives. 2.1 Specification summary table The specifications listed in this table are for quick reference. For details on specification measurement or defi- nition,
Краткое содержание страницы № 14
ST3160021A ST3120022A ST380011A Drive specification ST3160023A ST3120026A ST380013A ST360014A ST340014A Average latency (msec) 4.16 Power-on to ready (sec typical) 10 sec Standby to ready (sec typical) 10 sec Startup current (typical) 12V (peak) 2.8 amps Track-to-track seek time (msec typical) <1.0 (read), <1.2 (write) Average seek time (msec typical) 8.5 Average seek, read (msec typical) 8.5 Average seek, write (msec typical) 9.5 Seek power (typical) 12.5 watts Read/write power (typical) 12.0
Краткое содержание страницы № 15
2.2 Formatted capacity Formatted Guaranteed Model capacity sectors Bytes per sector ST3160021A 160 Gbytes 312,581,808 512 ST3160023A ST3120022A 120 Gbytes 234,441,648 512 ST3120026A ST380011A 80 Gbytes 156,301,488 512 ST380013A ST360014A 60 Gbytes 117,231,408 512 ST340014A 40 Gbytes 78,165,360 512 2.2.1 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 sectors as defined above. See Section 4.1
Краткое содержание страницы № 16
2.5 Recording and interface technology Interface ATA Recording method 16/17 EPRML Recording density BPI (bits/inch max) 595,000 Track density TPI (tracks/inch max) 94,600 2 Areal density (Mbits/inch max) 56.3 Spindle speed (RPM) (± 0.2%) 7,200 Internal data-transfer rate OD (Mbytes/sec max) 85.4 Sustained data transfer rate OD (Mbytes/sec max) 58 I/O data-transfer rate (Mbytes/sec max) 100 (Ultra DMA mode 5) Interleave 1:1 Cache buffer ST3160021A, ST3120022A, ST380011A, ST360014A, and ST340014A
Краткое содержание страницы № 17
2.7 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) Read Write Track-to-track <1.0 <1.2 Aver
Краткое содержание страницы № 18
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 and 12.0V input voltage at 25°C ambient temperature. • Spinup power Spinup power is measured from the time of 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
Краткое содержание страницы № 19
2.9.1.1 Typical current profile 1.2 1.0 0.8 Amps 0.6 0.4 0.2 +5 Volt Current during spindle start — Typical Amperes 0.0 12 3 4 5 6 7 8 9 Seconds Figure 1. Typical 5V startup and operation current profile 3.0 +12 Volt Current during spindle start — Typical Amperes 2.5 2.0 Amps 1.5 1.0 0.5 0.0 0 1 2 3 45678 Seconds Figure 1. Typical 12V startup and operation current profile Barracuda 7200.7 Product Manual, Rev. E 9
Краткое содержание страницы № 20
2.9.2 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. Equival
Краткое содержание страницы № 1
Users
Barracuda 7200.7 Plus
ST3160023A
ST3120026A
ST380013A
Barracuda 7200.7
ST3160021A
ST3120022A
ST380011A
ST360014A
ST340014A
Краткое содержание страницы № 2
Краткое содержание страницы № 3
Users Barracuda 7200.7 Plus ST3160023A ST3120026A ST380013A Barracuda 7200.7 ST3160021A ST3120022A ST380011A ST360014A ST340014A
Краткое содержание страницы № 4
©2003, Seagate Technology LLC All rights reserved Publication number: 100286645, Rev. E December 2003 Seagate, Seagate Technology, and the Seagate logo are registered trademarks of Seagate Technology LLC. SeaTools, SeaFONE, SeaBOARD, and SeaTDD are either registered trademarks or trademarks of Seagate Technology LLC. Other product names are registered trademarks or trademarks of their owners. Seagate reserves the right to change, without notice, product offerings or specifications. No part
Краткое содержание страницы № 5
Revision status summary sheet Revision Date Sheets Affected Rev. A 04/21/03 All. Rev. B 05/07/03 Pages 8, 34-36, 38, and 41-45 Rev. C 07/17/03 Pages 1, 4, 7, 12, and 13. Also new design and page size. Rev. D 09/02/03 Page 20. Rev. E 12/01/03 Page 18.
