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Seagate ST340015A Product Manual - Page 16

Barracuda 5400.1 Product Manual, Rev. F, Seek time, Note., Start/stop times, Power specifications

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8 Barracuda 5400.1 Product Manual, Rev. F 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) Average Track-to-track Read/write Full stroke Read 12.5 0.3 15.5 26 Write 13.5 0.7 16.5 28 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 or exceed 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. 2.8 Start/stop times Power-on to Ready (sec) Standby to Ready (sec) Ready to spindle stop (sec) 6.5 (max) 6.0 (typical) 10 (typical) 2.9 Power specifications The drive receives DC power (+5V or +12V) through a four-pin standard drive power connector.

Section	Page
1.0 Introduction 1	5
2.0 Drive specifications 3	5
2.1 Specification summary table 3	5
2.2 Formatted capacity 6	5
2.3 Default logical geometry 6	5
2.4 Physical organization 6	5
2.5 Recording and interface technology 7	5
2.6 Physical characteristics 7	5
2.7 Seek time 8	5
2.8 Start/stop times 8	5
2.9 Power specifications 8	5
2.9.1 Power consumption 9	5
2.9.2 Conducted noise 12	5
2.9.3 Voltage tolerance 12	5
2.9.4 Power-management modes 12	5
2.10 Environmental specifications 13	5
2.10.1 Ambient temperature 13	5
2.10.2 Temperature gradient 14	5
2.10.3 Humidity 14	5
2.10.4 Altitude 14	5
2.10.5 Shock 15	5
2.10.6 Vibration 15	5
2.11 Acoustics 16	5
2.12 Electromagnetic immunity 17	5
2.13 Reliability 17	5
2.14 Agency certification 18	5
2.14.1 Safety certification 18	5
2.14.2 Electromagnetic compatibility 18	5
2.14.3 FCC verification 19	5
3.0 Configuring and mounting the drive 21	5
3.1 Handling and static discharge precautions 21	5
3.2 Breather filter hole precautions 22	5
3.3 Jumper settings 23	5
3.3.1 Master/slave configuration 23	5
3.3.2 Cable select option 23	5
3.3.3 Ultra ATA/100 cable 24	5
3.4 Drive mounting 24	5
4.0 ATA interface 27	5
4.1 ATA interface signals and connector pins 27	5
4.1.1 Supported ATA commands 29	6
4.1.2 Identify Device command 31	6
4.1.3 Set Features command 36	6
4.1.4 S.M.A.R.T. commands 38	6
5.0 Seagate Technology support services 39	6
Figure 1. Typical 5V startup and operation current profile 11	7
Figure 2. Typical 12V startup and operation current profile 11	7
Figure 3. Breather filter hole location 22	7
Figure 4. Master/slave jumper settings 23	7
Figure 5. Ultra ATA cable connectors 24	7
Figure 6. Mounting dimensions-top, side and end view 25	7
Figure 7. I/O pins and supported ATA signals 28	7
1.0 Introduction	9
2.0 Drive specifications	11
2.1 Specification summary table	11
2.2 Formatted capacity	14
2.3 Default logical geometry	14
2.4 Physical organization	14
2.5 Recording and interface technology	15
2.6 Physical characteristics	15
2.7 Seek time	16
2.8 Start/stop times	16
2.9 Power specifications	16
2.9.1 Power consumption	17
2.9.1.1 Typical current profile	19
2.9.2 Conducted noise	20
2.9.3 Voltage tolerance	20
2.9.4 Power-management modes	20
2.10 Environmental specifications	21
2.10.1 Ambient temperature	21
2.10.2 Temperature gradient	22
2.10.3 Humidity	22
2.10.3.1 Relative humidity	22
2.10.3.2 Wet bulb temperature	22
2.10.4 Altitude	22
2.10.5 Shock	23
2.10.5.1 Operating shock	23
2.10.5.2 Nonoperating shock	23
2.10.6 Vibration	23
2.10.6.1 Operating vibration	23
2.10.6.2 Nonoperating vibration	23
2.11 Acoustics	24
2.12 Electromagnetic immunity	25
2.13 Reliability	25
2.14 Agency certification	26
2.14.1 Safety certification	26
2.14.2 Electromagnetic compatibility	26
2.14.3 FCC verification	27
3.0 Configuring and mounting the drive	29
3.1 Handling and static discharge precautions	29
3.2 Breather filter hole precautions	30
3.3 Jumper settings	31
3.3.1 Master/slave configuration	31
3.3.2 Cable select option	31
3.3.3 Ultra ATA/100 cable	32
3.4 Drive mounting	32
4.0 ATA interface	35
4.1 ATA interface signals and connector pins	35
4.1.1 Supported ATA commands	37
4.1.2 Identify Device command	39
4.1.3 Set Features command	44
4.1.4 S.M.A.R.T. commands	46
5.0 Seagate Technology support services	47
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