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Seagate 15K.3 ST373453FC Model Product Manual PDF - Page 37

Cheetah 15K.3 FC Product Manual, Rev. D, ST318453FC, Environmental limits, Temperature

UPC - 000004165019

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Cheetah 15K.3 FC Product Manual, Rev. D 27 ST318453FC Typical power dissipation under idle conditions in 2Gb operation is 9.6 watts (32.8 BTUs per hour). To obtain operating power for typical random read operations, refer to the following I/O rate curve (see Figure 8). Locate the typical I/O rate for a drive in your system on the horizontal axis and read the corresponding +5 volt current, +12 volt current, and total watts on the vertical axis. To calculate BTUs per hour, multiply watts by 3.4123. ST318453FC DC CURRENT/POWER vs THROUGHPUT (1Gb) Random 8 Block Reads 1.800 18.00 5Vo lt A 1.600 16.00 12 Vo lt A Watts 1.400 14.00 Amperes Power (watts) 1.200 12.00 1.000 10.00 0.800 8.00 0.600 6.00 0.400 0.0 4.00 50.0 100.0 150.0 200.0 250.0 300.0 350.0 I/Os per Second Figure 10. ST318453FC DC current and power vs. input/output operations per second 6.4 Environmental limits Temperature and humidity values experienced by the drive must be such that condensation does not occur on any drive part. Altitude and atmospheric pressure specifications are referenced to a standard day at 58.7°F (14.8°C). Maximum wet bulb temperature is 82°F (28°C). 6.4.1 Temperature a. Operating With cooling designed to maintain the case temperatures, the drive meets all specifications over a 41°F to 131°F (5°C to 55°C) drive ambient temperature range with a maximum temperature gradient of 36°F (20°C) per hour. The enclosure for the drive should be designed such that these temperatures not exceeded. Air flow may be needed to achieve these temperature values (see Section 8.4). Operation at case temperatures above these values may adversely affect the drives ability to meet specifications. The MTBF specification for the drive is based on operating in an environment that ensures that the case temperatures are not exceeded. Occasional excursions to drive ambient temperatures of 131°F (55°C) or 41°F (5°C) may occur without impact to specified MTBF. Air flow may be needed to achieve these temperatures. Continual or sustained operation at case temperatures above these values may degrade MTBF. The maximum allowable continuous or sustained HDA case temperature for the rated MTBF is 122°F (50°C). To confirm that the required cooling for the electronics and HDA is provided, place the drive in its final mechanical configuration, perform random write/read operations. After the temperatures stabilize, measure the case temperature of the drive. The maximum allowable HDA case temperature is 60°C. Operation of the drive at the maximum case temperature is intended for short time periods only. Continuous operation at the elevated temperatures will reduce product reliability.

Section	Page
1.0 Scope 1	7
2.0 Applicable standards and reference documentation 3	7
2.1 Standards 3	7
2.1.1 Electromagnetic compatibility 3	7
2.1.2 Electromagnetic compliance 3	7
2.2 Reference documents 4	7
3.0 General description 5	7
3.1 Standard features 6	7
3.2 Media description 6	7
3.3 Performance 6	7
3.4 Reliability 7	7
3.5 Unformatted and formatted capacities 7	7
3.6 Programmable drive capacity 7	7
3.7 Factory-installed accessories 7	7
3.8 Factory-installed options 7	7
3.9 User-installed accessories 7	7
4.0 Performance characteristics 9	7
4.1 Internal drive characteristics 9	7
4.2 Seek performance characteristics 9	7
4.2.1 Access time 9	7
4.2.2 Format command execution time for ³ 512-byte sectors (minutes) 9	7
4.2.3 General performance characteristics 10	7
4.3 Start/stop time 10	7
4.4 Prefetch/multi-segmented cache control 10	7
4.5 Cache operation 10	7
4.5.1 Caching write data 11	7
4.5.2 Prefetch operation 12	7
4.5.3 Optimizing cache performance for desktop and server applications 12	7
5.0 Reliability specifications 13	7
5.1 Error rates 13	7
5.1.1 Interface errors 13	7
5.1.2 Environmental interference 13	7
5.1.3 Write errors 13	7
5.1.4 Seek errors 13	7
5.2 Reliability and service 14	7
5.2.1 Mean time between failure (MTBF) 14	7
5.2.2 Preventive maintenance 14	7
5.2.3 Service life 14	7
5.2.4 Service philosophy 14	7
5.2.5 Service tools 14	7
5.2.6 Hot plugging the drive 14	7
5.2.7 S.M.A.R.T. 15	7
5.2.8 Thermal monitor 16	7
5.2.9 Drive Self Test (DST) 17	7
5.2.10 Product warranty 19	7
6.0 Physical/electrical specifications 21	7
6.1 AC power requirements 21	7
6.2 DC power requirements 21	7
6.2.1 Conducted noise immunity 22	7
6.2.2 Power sequencing 22	7
6.2.3 Current profiles 22	7
6.3 Power dissipation 26	7
6.4 Environmental limits 27	7
6.4.1 Temperature 27	8
6.4.2 Relative humidity 28	8
6.4.3 Effective altitude (sea level) 28	8
6.4.4 Shock and vibration 28	8
6.4.5 Air cleanliness 31	8
6.4.6 Acoustics 31	8
6.4.7 Electromagnetic susceptibility 31	8
6.5 Mechanical specifications 32	8
7.0 Defect and error management 33	8
7.1 Drive internal defects/errors 33	8
7.2 Drive error recovery procedures 33	8
7.3 FC-AL system errors 34	8
8.0 Installation 35	8
8.1 Drive ID/option selection 35	8
8.2 LED connections 35	8
8.2.1 J6 connector requirements 36	8
8.3 Drive orientation 36	8
8.4 Cooling 36	8
8.5 Drive mounting 37	8
8.6 Grounding 37	8
9.0 Interface requirements 39	8
9.1 FC-AL features 39	8
9.1.1 Fibre Channel link service frames 39	8
9.1.2 Fibre Channel task management functions 39	8
9.1.3 Fibre Channel task management responses 39	8
9.1.4 Fibre Channel port login 40	8
9.1.5 Fibre Channel port login accept 41	8
9.1.6 Fibre Channel Process Login 41	8
9.1.7 Fibre Channel Process Login Accept 41	8
9.1.8 Fibre Channel fabric login 42	8
9.1.9 Fibre Channel fabric accept login 43	8
9.1.10 Fibre Channel Arbitrated Loop options 44	8
9.2 Dual port support 44	8
9.3 SCSI commands supported 45	8
9.3.1 Inquiry data 49	8
9.3.2 Mode Sense data 49	8
9.4 Miscellaneous operating features and conditions 54	8
9.5 FC-AL physical interface 55	8
9.5.1 Physical characteristics 55	8
9.5.2 Connector requirements 56	8
9.5.3 Electrical description 57	8
9.5.4 Pin descriptions 57	8
9.5.5 FC-AL transmitters and receivers 58	8
9.5.6 Power 58	8
9.5.7 Fault LED Out 58	8
9.5.8 Active LED Out 58	8
9.5.9 Enable port bypass signals 59	8
9.5.10 Motor start controls 59	8
9.5.11 SEL_6 through SEL_0 ID lines 59	8
9.5.12 Device control codes 62	8
9.6 Signal characteristics 62	8
9.6.1 TTL input characteristics 62	8
9.6.2 LED driver signals 62	8
9.6.3 Differential PECL output 63	8
9.6.4 Differential PECL input 63	8
10.0 Seagate Technology support services 65	8
Figure 1. Cheetah 15K.3 FC family disc drive 1	9
Figure 2. Typical ST373453FC drive +12V current profile 22	9
Figure 3. Typical ST373453FC drive +5V current profile 23	9
Figure 4. Typical ST336753FC drive +12V current profile 23	9
Figure 5. Typical ST336753FC drive +5V current profile 24	9
Figure 6. Typical ST318453FC drive +12V current profile 24	9
Figure 7. Typical ST318453FC drive +5V current profile 25	9
Figure 8. ST373453FC DC current and power vs. input/output operations per second 26	9
Figure 9. ST336753FC DC current and power vs. input/output operations per second 26	9
Figure 10. ST318453FC DC current and power vs. input/output operations per second 27	9
Figure 11. Locations of the HDA temperature check point 28	9
Figure 12. Recommended mounting 30	9
Figure 13. Mounting configuration dimensions 32	9
Figure 14. Physical interface 35	9
Figure 15. LED indicator connector 36	9
Figure 16. Air flow 37	9
Figure 17. Physical interface 55	9
Figure 18. Port bypass circuit physical interconnect 55	9
Figure 19. FC-AL SCA device connector dimensions 56	9
Figure 20. J6 connector dimensions 56	9
Figure 21. FC-AL transmitters and receivers 58	9
Figure 22. Transmit eye diagram 63	9
Figure 23. Receive eye diagram 63	9
1.0 Scope	11
2.0 Applicable standards and reference documentation	13
2.1 Standards	13
2.1.1 Electromagnetic compatibility	13
2.1.1.1 Electromagnetic susceptibility	13
2.1.2 Electromagnetic compliance	13
2.2 Reference documents	14
3.0 General description	15
3.1 Standard features	16
3.2 Media description	16
3.3 Performance	16
3.4 Reliability	17
3.5 Unformatted and formatted capacities	17
3.6 Programmable drive capacity	17
3.7 Factory-installed accessories	17
3.8 Factory-installed options	17
3.9 User-installed accessories	17
4.0 Performance characteristics	19
4.1 Internal drive characteristics	19
4.2 Seek performance characteristics	19
4.2.1 Access time	19
4.2.2 Format command execution time for ³ 512-byte sectors (minutes)	19
4.2.3 General performance characteristics	20
4.3 Start/stop time	20
4.4 Prefetch/multi-segmented cache control	20
4.5 Cache operation	20
4.5.1 Caching write data	21
4.5.2 Prefetch operation	22
4.5.3 Optimizing cache performance for desktop and server applications	22
5.0 Reliability specifications	23
5.1 Error rates	23
5.1.1 Interface errors	23
5.1.2 Environmental interference	23
5.1.3 Write errors	23
5.1.4 Seek errors	23
5.2 Reliability and service	24
5.2.1 Mean time between failure (MTBF)	24
5.2.2 Preventive maintenance	24
5.2.3 Service life	24
5.2.4 Service philosophy	24
5.2.5 Service tools	24
5.2.6 Hot plugging the drive	24
5.2.7 S.M.A.R.T.	25
5.2.8 Thermal monitor	26
5.2.9 Drive Self Test (DST)	27
5.2.9.1 DST failure definition	27
5.2.9.2 Implementation	27
5.2.9.2.1 State of the drive prior to testing	27
5.2.9.2.2 Invoking DST	28
5.2.9.2.3 Short and extended tests	28
5.2.9.2.4 Log page entries	28
5.2.9.2.5 Abort	28
5.2.10 Product warranty	29
6.0 Physical/electrical specifications	31
6.1 AC power requirements	31
6.2 DC power requirements	31
6.2.1 Conducted noise immunity	32
6.2.2 Power sequencing	32
6.2.3 Current profiles	32
6.3 Power dissipation	36
6.4 Environmental limits	37
6.4.1 Temperature	37
6.4.2 Relative humidity	38
6.4.3 Effective altitude (sea level)	38
6.4.4 Shock and vibration	38
6.4.4.1 Shock	38
6.4.4.2 Vibration	41
6.4.5 Air cleanliness	41
6.4.6 Acoustics	41
6.4.7 Electromagnetic susceptibility	41
6.5 Mechanical specifications	42
7.0 Defect and error management	43
7.1 Drive internal defects/errors	43
7.2 Drive error recovery procedures	43
7.3 FC-AL system errors	44
8.0 Installation	45
8.1 Drive ID/option selection	45
8.2 LED connections	45
8.2.1 J6 connector requirements	46
8.3 Drive orientation	46
8.4 Cooling	46
8.5 Drive mounting	47
8.6 Grounding	47
9.0 Interface requirements	49
9.1 FC-AL features	49
9.1.1 Fibre Channel link service frames	49
9.1.2 Fibre Channel task management functions	49
9.1.3 Fibre Channel task management responses	49
9.1.4 Fibre Channel port login	50
9.1.5 Fibre Channel port login accept	51
9.1.6 Fibre Channel Process Login	51
9.1.7 Fibre Channel Process Login Accept	51
9.1.8 Fibre Channel fabric login	52
9.1.9 Fibre Channel fabric accept login	53
9.1.10 Fibre Channel Arbitrated Loop options	54
9.2 Dual port support	54
9.3 SCSI commands supported	55
9.3.1 Inquiry data	59
9.3.2 Mode Sense data	59
9.4 Miscellaneous operating features and conditions	64
9.5 FC-AL physical interface	65
9.5.1 Physical characteristics	65
9.5.1.1 Physical description	65
9.5.2 Connector requirements	66
9.5.3 Electrical description	67
9.5.4 Pin descriptions	67
9.5.5 FC-AL transmitters and receivers	68
9.5.6 Power	68
9.5.7 Fault LED Out	68
9.5.8 Active LED Out	68
9.5.9 Enable port bypass signals	69
9.5.10 Motor start controls	69
9.5.11 SEL_6 through SEL_0 ID lines	69
9.5.11.1 Parallel Enclosure Services Interface (ESI)	70
9.5.12 Device control codes	72
9.6 Signal characteristics	72
9.6.1 TTL input characteristics	72
9.6.2 LED driver signals	72
9.6.3 Differential PECL output	73
9.6.4 Differential PECL input	73
10.0 Seagate Technology support services	75
Numerics	79
A	79
B	79
C	79
D	79
E	80
F	80
G	81
H	81
I	81
J	81
L	81
M	81
N	82
O	82
P	82
Q	83
R	83
S	83
T	84
U	84
V	84
W	84
X	84

Match case Limit results 1 per page

Cheetah 15K.3 FC Product Manual, Rev. D

ST318453FC

Typical power dissipation under idle conditions in 2Gb operation is 9.6 watts (32.8 BTUs per hour).

To obtain operating power for typical random read operations, refer to the following I/O rate curve (see Figure

8). Locate the typical I/O rate for a drive in your system on the horizontal axis and read the corresponding +5

volt current, +12 volt current, and total watts on the vertical axis. To calculate BTUs per hour, multiply watts by

3.4123.

Figure 10.

ST318453FC DC current and power vs. input/output operations per second

6.4

Environmental limits

Temperature and humidity values experienced by the drive must be such that condensation does not occur on

any drive part. Altitude and atmospheric pressure specifications are referenced to a standard day at 58.7°F

(14.8°C). Maximum wet bulb temperature is 82°F (28°C).

6.4.1

Temperature

a. Operating

With cooling designed to maintain the case temperatures, the drive meets all specifications over a 41°F to

131°F (5°C to 55°C) drive ambient temperature range with a maximum temperature gradient of 36°F (20°C)

per hour. The enclosure for the drive should be designed such that these temperatures not exceeded. Air

flow may be needed to achieve these temperature values (see Section 8.4). Operation at case tempera-

tures above these values may adversely affect the drives ability to meet specifications.

The MTBF specification for the drive is based on operating in an environment that ensures that the case

temperatures are not exceeded. Occasional excursions to drive ambient temperatures of 131°F (55°C) or

41°F (5°C) may occur without impact to specified MTBF. Air flow may be needed to achieve these tempera-

tures. Continual or sustained operation at case temperatures above these values may degrade MTBF. The

maximum allowable continuous or sustained HDA case temperature for the rated MTBF is 122°F (50°C).

To confirm that the required cooling for the electronics and HDA is provided, place the drive in its final

mechanical configuration, perform random write/read operations. After the temperatures stabilize, measure

the case temperature of the drive.

The maximum allowable HDA case temperature is 60°C. Operation of the drive at the maximum case tem-

perature is intended for short time periods only. Continuous operation at the elevated temperatures will

reduce product reliability.

ST318453FC DC CURRENT/POWER vs THROUGHPUT (1Gb)

Random 8 Block Reads

0.400

0.600

0.800

1.000

1.200

1.400

1.600

1.800

0.0

50.0

100.0

150.0

200.0

250.0

300.0

350.0

I/Os per Second

Amperes

4.00

6.00

8.00

10.00

12.00

14.00

16.00

18.00

Power (watts)

5Volt A

12 Volt A

Watts