seagate ST136403FC Installation guide

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Cheetah 36FC Disc Drive

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ST136403FC/FCV

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Product Manual, Volume 1

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Cheetah 36FC Disc Drive

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ST136403FC/FCV

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Product Manual, Volume 1

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Publication number: 83329460, Rev. D

Seagate , Seagate Technology, and the Seagate logo are registered trademarks of Seagate T echnology, LLC. Cheetah, SeaFAX, SeaFONE, SeaBOARD, and SeaTDD are either trademarks or registered trademarks of Seagate Technology, LLC or one of its subsidiaries. All other trademarks or registered trademarks are the property of their respective owners.

No part of this publication may be reproduced in any form without written permission from

Seagate Technology, LLC.

Printed in the United States of America

Revision status summary sheet

Revision Date Writer/Engineer Sheets Affected

A (Class C Release) 06/25/99 L. Newman/D. Rusch DJD51097 B (Class A Release) 06/30/99 L. Newman/D. Rusch DJD51098 C 11/18/99 L. Newman/G. Velaski Page 46 (mode sense data) D 06/21/00 L. Newman/G. Velaski Adds FCV model name.

Cheetah 36FC Product Manual, Rev. D vii

1.0 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

2.0 Applicable standards and reference documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2.1 Standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2.1.1 Electromagnetic compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2.2 Reference documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

3.0 Gen eral descr ip tion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

3.1 Standard features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

3.2 Media description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

3.3 Performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

3.4 Reliability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

3.5 Unformatt ed and formatted capacities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

3.6 Programmable drive capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

3.7 Factory-installed accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

3.8 Factory-installed options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

3.9 User-installed accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

4.0 Performance characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

4.1 Internal drive characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

4.2 Seek performance characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

4.2.1 Access time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

4.2.2 Format command execution time for ≥ 512-byte sectors . . . . . . . . . . . . . . . . . . . . . 9

4.2.3 General performance characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

4.3 Start/stop time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

4.4 Prefetch/multi-segmented cache control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

4.5 Cache operat ion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1

4.5.1 Caching write data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

4.5.2 Prefetch operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

5.0 Reliability specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

5.1 Error rates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

5.1.1 Environmental interference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

5.1.2 Interface errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

5.1.3 Write errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

5.1.4 Seek errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

5.2 Reliabili ty and service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

5.2.1 Mean time between failure (MTB F) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

5.2.2 Field failure rate vs time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

5.2.3 Preve ntive maintenan ce . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

5.2.4 Service life . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

5.2.5 Service philosophy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

5.2.6 Service tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

5.2.7 Hot plugging the drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

5.2.8 S.M.A.R.T. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

5.2.9 Product warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

6.0 Physical/electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

6.1 AC power requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

6.2 DC power requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

6.2.1 Conduct ed noise immu nity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

6.2.2 Power sequenc ing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

6.2.3 Current profiles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

6.3 Power dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

6.4 Environmental limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 2

6.4.1 Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

6.4.2 Relative humidity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

6.4.3 Effective altitude (sea level) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

viii Cheetah 36FC Product Manual, Rev. D

6.4.4 Shock and vibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24

6.4.5 Air cleanliness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26

6.4.6 Acoustics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26

6.4.7 Electromagnetic susceptibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26

6.5 Mechanical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27

7.0 Defect and error management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29

7.1 Drive internal defects/errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29

7.2 Drive error recovery procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29

7.3 FC-AL system errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30

8.0 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31

8.1 Drive ID/option selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31

8.2 LED connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31

8.2.1 J6 connector requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32

8.3 Drive orientation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32

8.4 Cooling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32

8.4.1 Air flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32

8.5 Drive mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33

8.6 Grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34

9.0 Interface req uirem en ts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35

9.1 FC-AL features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35

9.1.1 Fibre Channel link service frames . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35

9.1.2 Fibre Channel task managem ent functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35

9.1.3 Fibre Channel task managem ent respons es . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35

9.1.4 Fibre Channel port login . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36

9.1.5 Fibre Channel port login accept . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37

9.1.6 Fibre Channel Proc ess Login . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37

9.1.7 Fibre Channel Proc ess Login Accept . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37

9.1.8 Fibre Channel fabric login . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38

9.1.9 Fibre Channel fabric accept login . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39

9.1.10 Fibre Channel Arbitrated Loop options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40

9.2 Dual port support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40

9.3 SCSI commands support ed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41

9.3.1 Inquiry data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44

9.3.2 Mode Sense data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44

9.4 Misce llaneous operating features and condit ions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47

9.5 FC-AL physical interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48

9.5.1 Physical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48

9.5.2 Connector requirem ent s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49

9.5.3 Electrical description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50

9.5.4 Pin descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50

9.5.5 FC-AL transmitters and receivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51

9.5.6 Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51

9.5.7 Fault LED Out . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51

9.5.8 Active LED Out . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51

9.5.9 Enable port bypass signal s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52

9.5.10 Motor start controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52

9.5.11 SEL_6 through SEL_0 ID lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52

9.6 Signal characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55

9.6.1 TTL input characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55

9.6.2 LED driver signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55

9.6.3 Differential PECL output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55

9.6.4 Differential PECL input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56

10.0 Seagate Technology support services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57

Cheetah 36FC Product Manual, Rev. D ix

List of Figures

Figure 1. Cheetah 36FC family disc drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Figure 2. Cheetah 36FC disc drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Figure 3. Typical Cheetah 36FC drive +12V current profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Figure 4. Typical Cheetah 36FC drive +5V current profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Figure 5. DC current and power vs. input/output operations per second . . . . . . . . . . . . . . . . . . . . . . . 22

Figure 6. Locations of PCBA components listed in Table 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Figure 7. Recommended mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Figure 8. Mounting configuration dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Figure 9. Physical interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Figure 10. LED indicator connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Figure 11. Air flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Figure 12. Physical interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

Figure 13. Port bypass circuit physical interconnect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

Figure 14. FC-AL SCA device connector dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Figure 15. J6 connector dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Figure 16. FC-AL transmitters and receivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

Figure 17. Transmit eye diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

Figure 18. Receive eye diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

Cheetah 36FC Product Manual, Rev. D 1

1.0 Scope

This manual describes Seagate® Cheetah 36FC (Fibre Channel) disc drives. Cheetah 36FC dr ives suppor t the Fibre Chann el Arbitrated Loo p and S CSI Fib re Channel Protocol spec ifica-

tions to the extent described in this manual. The Fibre Chanel Interface Manual (part number 77767496) describes the general Fibre Channel Arbitrated Loop characteristics of this and other Seag ate Fibre Channel drives.

Figure 1.

Cheetah 36FC

family disc drive

Cheetah 36FC Product Manual, Rev. D 3

2.0 Applicable standards and reference documentation

The drive has been developed as a system peripheral to the highest standards of design and construction. The drive depends upon its hos t equipment to provide adequate power and environment in order to ach ieve optimum performance and compliance with applicable industry a nd governmental regulations. Special attention must be given in the areas of safety, power distribution, shielding, audible noise control, and temperature regulation. In particular, the drive must be securely m ount ed in o rder to guarante e the s pecified pe rform ance c haracteristics. Mounting by bottom holes must meet the requirements of Section 8.5.

2.1 Standards

The Cheetah 36FC family complies with Seagate standards as noted in the appropriate sections of this manual and the Seagate Fibre Channel Interface Manual, part number 77767496.

The Cheetah 36FC disc drive is a UL recognized component per UL1950, CSA certified to CAN/CSA C22.2 No. 950-95, and VDE certified to VDE 0805 and EN60950.

2.1.1 Electromagnetic compatibility

The drive, as delivered, is designed for system integration and installation into a suitable enclosure prior to use. As such the drive is supplied as a subassembly and is not subject to Subpar t B of Part 15 of the FCC Rules and Regulations nor the Radio Interference Regulations of the Canadian Department of Communications.

The design characteristics of the drive serve to minimize radiation when installed in an enclosure that provides reasonable shielding. As such, the drive is capable of meeting the Class B limits of the FCC Rules and Regulations of the Canadian Department of Communications when properly packaged. However, it is the user’s responsibility to assure that the drive meets the appropriate EMI requirements in their system. Shielded I/O cables may be required if the enclosure does not provide adequate shielding. If the I/O cables are external to the enclosure, shielded cables should be used, with the shields grounded to the enclosure and to the host controller.

2.1.1.1 Electromagnetic susceptibility

As a component assem bly, the drive is not required to me et any suscep tibility performance requi remen ts. It is the responsibility of those integrating the dri ve within their system s to perform t hose t ests req uired and design their system to ensure that equipment operating in the same system as the drive or external to the system does not adversely affect the performance of the dr ive. See Section 5.1.1 on page 13 and Table 1, DC power requirements, on page 19.

Electromagnetic compliance Seagate uses an independ ent laboratory to confir m compliance with the directives/standards for CE Marking

and C-Tick Marking. The drive was tested in a representative system for typical applications. The selected system represents the most popular characteristics for test platforms. The system configurations include:

• 486, Pentium, and PowerPC microprocessors

• 3.5-inch floppy disc drive

• Keyboard

• Monitor/display

• Printer

• External modem

• Mouse

Although the test system with this Seagate model complies with the directives/standards, we cannot guarantee that all systems will comply. The computer manufacturer or system integrator shall confirm EMC compliance and provide the appropriate marking for their product.

Electromagnetic compliance for the European Union

If this model has the CE Marking it complies with the European Union requirements of the Electrom agnetic Compatibility Directive 89/336/EEC of 03 May 1989 as am ended by Directive 92/31/EEC of 28 April 1992 a nd Directive 93/68/EEC of 22 July 1993.

4 Cheetah 36FC Product Manual, Rev. D

Australian C-Ti ck

If this model has the C-Tick Marking it complies with the Australia/New Zealand Standard AS/NZS3548 1995 and meets the Electromagnetic Compatibility (EMC) Framework requirements of Australia’s Spectrum Management Agency (SMA).

2.2 Reference documents

Cheetah 36FC Installation Guide

Seagate part number: 83329470

Fibre Channel Interface Manual

Seagate part number: 77767496

ANSI Fibre Channel Documents

X3.230-1994 FC Physical and Signaling Interface (FC-PH) X3.297.1997 FC-PH-2 Fibre Channel Physical and Signaling Interface-2 X3.303.1998 FC-PH-3 Fibre Channel Physical and Signaling Interface-3 X3.272-1996 FC Arbitrated Loop (FC-AL) X3.269-1996 Fibre Channel Protocol for SCSI (FCP) NCITIS TR-19 P rivate Loop SCSI Direct Attach NCITIS TR-20 Fabric Loop Attachment (FC-FLA) SFF-8045 Specification for 40-pin SCA-2 Connector with Parallel Selection. SFF-8067 Specification for 40-pin SCA-2 Connector with Bidirectional Enclosure Services

Interface.

ANSI Small Computer System Interface (SCSI) Documents

X3.131-1994 (SCSI-2) X3.270-199X6 (SCSI-3) Architecture Model NCITS 305-199X (SCSI-3) Enclosure Services 30553-001 Specification for Acoustic T est Requirements and Procedures

In case of conflict between this document and any referenced document, this document takes precedence.

Cheetah 36FC Product Manual, Rev. D 5

3.0 General description

CheetahTM 36FC drives combine dual stripe magneto resistive (DSMR) heads, partial response/maximum likelihood (PRML) read channel electronics, embedded servo technology, and a Fibre Channel interface to provide high performance, high capacity dat a storage for a variety of systems including engineering workst ations, network servers, mainframes, and supercomputers.

Cheetah Loop (FC-AL) and SCSI Fi bre Channel Protocol as de scribed in the ANS I specifications, this document , and the Fibre Channel Interface Manual (par t number 77767496) which descr ibes the general interface character- istics of this drive. ST136403FC/FCV drives are classified as intellige nt peripherals and provide level 2 conformance (highest level) with the ANSI SCSI-1 standard.

The head and disc assembly (HDA) is environmentally sealed at the factory. Air recirculates within the HDA through a non-replaceable filter to maintain a contamination-free HDA environment.

See Figure 2 for an exploded view of the drive. Never disassemble the HDA. This exploded view is for information only. Do not attempt to service items in the sealed enclosure (heads, media, actuator, etc.) as this requires special facilities. The drive contains no parts replaceable by the user and opening the HDA for any reason voids your warranty.

36FC drives are random acces s storage devices d esigned to support the Fibre C hannel A rbitrated

Figure 2. Cheetah 36FC disc drive

Cheetah 36FC

drives use a dedicated landing zone at the innermost radius of the media to eliminate the possibility of destroying or degrading data by landing in the data zone. The heads automatically go to the landing zone when power is removed from the drive.

An automatic shipping lock prevents potential damage to the heads and discs that results from movement during shipping and handling. The shipping lock disengages and the head load process begins when power is applied to the drive.

Cheetah

36FC dr ives decode t rack 0 l ocation data from the s er vo da ta em bedded on each surface to elimi-

nate mechanical transducer adjustments and related reliability concerns. The drives also use a high-performance actuator assembly with a low-inertia, balanced, patented, straight arm

design that provides excellent performance with minimum power dissipation.

6 Cheetah 36FC Product Manual, Rev. D

3.1 Standard features

Cheetah 36FC

drives have the following standard features:

• Integrated dual port FC-AL controller

• Concurrent dual port transfers

• Support for FC arbitrated loop, private and public loop attachment

• Differential copper FC drivers and receivers

• Downloadable firmware using the FC-AL interface

• Supports SCSI enclosure services through the interface connector

• 128-deep task set (queue)

• Supports up to 32 initiators

• Drive selection ID and configuration options are set on the FC-AL backpanel or through interface com-

mands. Jumpers are not used on the drive.

• Fibre Channel worldwide name uniquely identifies the drive and each port

• User-selectable logical block size (512 to 4,096 bytes per logical block)

• Selectable frame sizes from 128 to 2,112 bytes

• Industry standard 3.5-inch half-high form factor dimensions

• Programmable logical block reallocation scheme

• Flawed logical block reallocation at format time

• Programmable auto write and read reallocation

• Reed-Solomon error correction code

• Sealed head and disc assembly (HDA)

• No preventive maintenance or adjustments required

• Dedicated head landing zone

• Automatic shipping lock

• Embedded Grey Code track address to eliminate seek errors

• Self-diagnostics performed at power on

• 1:1 interleave

• Zone bit recording (ZBR)

• Vertical, horizontal, or top down mounting

• Dynamic spindle brake

• 1,024 Kbyte data buffer (4,096 Kbytes on the FCV model). See Section 4.5.

• Embedded servo design

• Reallocation of defects on command (Post Format)

• Fibre Channel interface transports SCSI protocol

3.2 Media description

The media used on the drive has a diameter of approximately 84 mm (approximately 3.3 inches). The aluminum substrate is coated with a thin film ma gnetic material, overcoated with a proprietary p rotective layer for improved durability and environmental protection.

3.3 Performance

• Programmable multi-segmentable cache buffer

• 106 Mbytes/sec maximum instantaneous data transfers per port.

• 10,016 RPM spindle; average latency = 2.99 msec

• Command queuing of up to 128 commands

• Background processing of queue

• Supports start and stop commands

• Adaptive seek velocity; improved seek performance

Cheetah 36FC Product Manual, Rev. D 7

3.4 Reliability

• 1,000,000 hour MTBF

• LSI circuitry

• Balanced low mass rotary voice coil actuator

• Self-Monitoring Analysis and Reporting Technol ogy (S.M.A.R.T. )

• Dithering

3.5 Unformatted a n d formatted capacities

Formatted capacity depends on th e spare reallocation sectors sche me selected, the numb er of dta tracks per sparing zone, and the number of alternate sectors (LBAs) per sparing zone. The following table shows the standard OEM model capacity:

Formatted Unformatted

ST136403FC/FCV 43D6720h (36.4) Gbytes 43.2 Gbytes

Standard OEM models are formatted to 512 bytes per block. You can order other capacities by requesting a different sparing scheme and logical block size.

The sector size is selectable at format time. Users having the necessary equipm ent may modify the data block size before issuing a format command and obtain different formatted capacities than those listed. ST136403FC/FCV drives use a zone sparing scheme. The drive is divided into frequency zones with a variable number of spares in each zone.

3.6 Programmable drive capacity

Using the Mode Select command, the drive can change its capacity to something less than maximum. See the Mode Select (6) parameter list table in the Fibre Channel Int erface Manual, part number 77767496. A value of zero in the Number of Blocks field indicates t hat the drive will not c hange the capacit y it is currently for matted to have. A number other than zero and less than the maximum number of LBAs in the Number of Blocks field changes the total drive capacity to the value in the Num ber of Cl ocks field. A value great er than the maximum number of LBAs is rounded down to the maximum capacity.

3.7 Factory-installed accessories

OEM standard drives are shipped with the Cheetah 36FC Installation Guide (part number 83329470).

3.8 Factory-installed options

You may order the following items which are incorporated at the manufacturing facility during production or packaged before shipping. Some of the options available are (not an exhaustive list of possible options):

• Other capacities can be ordered depending on sparing scheme and secto r size requested.

• Single-unit shipping pack. The drive is nor mally shipped i n bulk packaging to provide max imum protection

against transit damage. Units shipped individually require additional protection as provided by the single unit shipping pack. Users planning single unit distribution should specify this option.

• The Cheetah 36FC Installation Guide, part number 83329470, is usually included with each sta ndard OEM

drive shipped, but extra copies may be ordered.

3.9 User-installed accessories

The following accessories are available. All kits may be installed in the field.

• Evaluation kit, part number 73473641.

This kit provides an adapter card (“T-card”) to allow cable connections for two FC ports and DC power. Tw o twin axial cables, 6 feet in length, are included for the input and output connections to the FC interface.

• Single-unit shipping pack.

Cheetah 36FC Product Manual, Rev. D 9

4.0 Performance characteristics

This section provides detailed information concerning performance-related characteristics and features of Cheetah 36FC drives.

4.1 Internal drive characteristics

ST136403FC/FCV

Drive capaci ty 36.4 ................ ..........Gbytes (formatted, rounded off value)

Read/write data heads 24

Bytes per track 153,284 - 229,045....Bytes (average, rounded off values)

Bytes per surf ace 1,913 ................ ........Mbytes (unformatted, ro unded off value)

Tracks per surface 9,801 ........................Tracks (user accessible)

Tra ck s pe r in ch 12,580 ...... .. ... ...........TP I

Internal data rate 179-313....................Mbits/sec (variab le with zone)

Disc rotation speed 10,016 ......................rpm (+

Avg ro tat ional latency 2.99 ........... .......... .....msec

4.2 Seek performance characteristics

See Section 9.5, "F C-AL physical interface" on page 48 and the Fi bre Channel Interface Manual (part number

77767496) for additional timing details.

4.2.1 Access time

Including cont roller overhead (msec)

0.5% )

1, 2

Not including cont rolle r overhead (msec)

3, 4

Read Write Read Write

Average Typical Single track Typical Full stroke Typical

1. Execution time measured from receipt of the command to the FCP Response.

2. Assumes no errors and no sector has been relocated.

3. Execution time measured from receipt of the command to the FCP Response.

4. Assumes no errors and no sector has been relocated.

5. Typical access times are measured under nominal conditions of temperature, voltage, and horizontal orientation as

measured on a representative sample of drives.

6. Access time = controller overhead + average seek time.

Access to data = contr oller overhead + average seek time + latency time.

5,6

3,4 3,4

6.15 6.85 5.95 6.65

0.8 1.1 0.6 0.9

14.2 15.2 14.0 15.0

4.2.2 Format command execution time for ≥ 512-byte sectors

ST136403FC/FCV

Maximum (with verify) 120 minutes Maximum (without verify) 60 minutes

10 Cheetah 36FC Product Manual, Rev. D

4.2.3 General performance characteristics

ST136403FC/FCV

Minimum sector interleave 1 to 1

Data buffer to/from disc media (one 512-byte logical block)*

Minimum 21.1 MBytes/sec Average 29.0 MBytes/sec Maximum 36.8 MBytes/sec

Fibre Channel Interface maximum instantaneous transfer rate 106 Mbytes/sec*per port

(dual port = 212 Mbytes/sec*)

Logical block size s

Default is 512-byte data blocks Variable 512 to 4,096 bytes per sector in even number of bytes per sector. If n (number of bytes per sect or) is odd, then n-1 will be used .

Read/write consecu ti ve sectors on a track

Flaw reallocation performance impact (for flaws reallocated at format time using the spare sect ors per sparing zone real location scheme.)

Av erage rotational latency

*Assumes no errors and no relocated logical blocks . Rate measured from the start of the first logi cal block transfer to or from the host.

Yes

Negligible

2.99 msec

4.3 S tar t/stop ti me

If the Motor Start option is disabled, the drive becomes ready within 30 seconds after DC power is applied. If a recoverabl e error condition is detected during the start sequence, the drive executes a recovery procedure and the time to become ready may exceed 30 seconds. Stop ti me is less than 30 seconds (maximum) from removal of DC power.

If the Motor Start option is enabled, the intern al controller accepts the comm ands listed in the Fibre Channel Interface Manual less than 3 seconds after DC power has been applied. After the Motor Star t command has been received, the drive becomes ready for normal operations within 30 seconds (excluding the error recovery procedure). The Motor Start command can also be used to comman d the drive to stop the spindle.

There is no power control switch on the drive.

4.4 Prefetch/multi-segmented cache control

The drive provides a prefetch (read look-ahead) and multi-segmented cache control algor ithms that in many cases can enhance system performance. Cache refers to the dr ive buffer storage space when it is used in cache operations. To s elect this feature, the host sends the Mode Selec t command with the proper values in the applicable bytes in page 08h. Prefetch and cache operations are independent features from the standpoint that each is enabled and disabled independently using the Mode Select command; however, in actual operation, the prefetch feature overlaps cache operation somewhat as described in sections 4.5.1 and 4.5.2.

All default cache and prefetch mode parameter values (Mode Page 08h) for standard OEM versions of this drive family are given in Table 16.

Cheetah 36FC Product Manual, Rev. D 11

4.5 Cache operation Note.

Refer to th e Fibre Channel Interface Manual for more detail concerning the cache bits.

Of the 1,024 Kbytes (4, 096 Kbytes in the FCV m odel) physical buffer space in the drive, 840 Kbytes (3,600 Kbytes in the FCV model) can be used as a cache. The buffer can be divided into logical segm ents (using Mode Select Page 08h, byte 13) from which data is read and to which data is written.

The drive keeps track of the logical block addresses of the data stored in each s egment of the buffer. If the cache is enabled (see RCD bit in the Fibre Channel I nterface Manual), data requested by the host with a read command is ret rieved from the buffer, if possible, before any disc access is in itiated. If cache o peration is not enabled, the buffer (still segmented with the required number of segments) is still used, but only as circular buffer segments during disc medium read operations (disregarding Prefetch operation fo r t he moment). That is, the drive does not check in the buffer segments for the requested read data, but goes directly to the medium to retrieve it. The retrieved data merely passes thro ugh som e buffer segment on the way to the host. On a cac he miss, all data transfers to the host are in accordance with buffer-full ratio rules. On a cache hit, the drive ignores the buffer-full ratio rules. See the explanation provided with the information about Mode Page 02h (disconnect/ reconnect control) in the Fibre Channel Interface Manual.

The following is a simplified description of the prefetch/cache operation:

Case A

—read command is received and the first logical block is already in the cache:

1. Drive transfers to the initiator the first logical block requested plus all subsequent contiguous logical blocks

that are already in the cache. This data may be in multiple segments.

2. When a requested logical block is reached that is not in any cache segment, the drive fetches it and any

remaining requested logical block addresses from the disc and puts them in a segm ent of the cache. The drive transfers the remaining requested logical blocks from the cache to the host in accordance with the Mode Select Disconnect/Reconnect parameters, page 02h.

3. If the prefetch feature is enabled, refer to section 4.5.2 for operation from this point.

Case B

—A Read command requests data, and the first logical block is not in any segment of the cache:

1. The drive fetches the requested logical blocks from the disc a nd transfers them into a segment, and then

from there to the host in accordance with the Mode Select Disconnect/Reconnect parameters, page 02h.

2. If the prefetch feature is enabled, refer to section 4.5.2 for operation from this point. During a prefetch, the drive crosses a cy linder boundary to fetch data only if the Di s continuity (DISC) bit is set

to 1 in bit 4 of byte 2 of the Mode Select parameters page 08h. Default is zero for bit 4. Each cache segment is actually a self-contained circular buffer whose length is an integer number of logical

blocks. The wrap-around capability of the individual segments greatly enhances the cache’s overall performance, allowing a wide range of user-selectable configurations. The drive supports operation of any integer number of segments from 1 to 16. Divide the number of Kbytes in the buffer by the number of segments to get the segment size. Default is 3 segments.

Note.

The size of each segment is not reported by Mode Sense c ommand page 08h, bytes 14 and 15. T he value 0XFFFF is always reported regardl ess of the ac tual size of the se gme nt. Sendi ng a s ize spec ification using the Mode Select command (bytes 14 and 15) does not set up a new segment size. If the STRICT bit in Mode page 00h (byte 2, bit 1) is set to one, the drive responds as it does for any attempt to change an unchangeable parameter.

4.5.1 Caching write data

Write caching is a write operation by the drive that makes use of a drive buffer storage area where the data to be written to the medium is stored while the drive performs the Write command.

If read caching is enabled (RCD=0), then data written to the medium is retained in the cache to be made available for future read cache hi ts. The sam e buffer space and segmentation is us ed as set up for read f unct ions. The buffer segmentation scheme is set up or changed independently, having nothing to do with the state of RCD. When a write command is issued, if RCD=0, the cache is first checked to see if any logical blocks that are to be written are already stored in the cache from a previous read or write command. If there are, the respective cache segments are cleared. The new data is cached for subsequent Read commands.

12 Cheetah 36FC Product Manual, Rev. D

If the number of write data logical blocks exceed the size of the segment being written into, when the end of the segment is reached, the data is written into the beginning of the same cache segment, overwriting the data that was written there at the beginning of the operation; however, the drive does not overwrite data that has not yet been written to the medium.

If write caching is enabled (WCE=1), then the drive may return Good status on a write command after the data has been transferred into the cache, but before the data has b een written to the medium. I f an error occurs while writing the data to the medium, and Good status has already been returned, a deferred error will be generated.

The Synchronize Cache command may be used to force the drive to write all cached write data to the medium. Upon completion of a Synchronize Cache command, all data received from previous write commands will have been written to the medium.

Table 16 shows the mode default settings for the drive.

4.5.2 Prefetch operation

If the Prefetch feature is enabled, data in con tig uous l ogical blocks on the disc immediately beyond that wh ich was requested by a Read command are retrieved and stored in the buffer for immediate transf e r f rom the buf fer to the host on subs eque nt Read commands that reques t t hose logical blocks (this is true even if cache operation is disabled). Though the prefetch operation uses the buffer as a cache, finding the requested data in the buffer is a prefetch hit, not a cache operation hit.

To enable Prefetch, use Mode Select page 08h, byte 12, bit 5 (Disable Read Ahead - DRA bit). DRA bit = 0 enables prefetch.

Since data that is prefetched replaces data already in some buffer segments, the host can limit the amount of prefetch data to optimize system performance. The Max P refetch field (bytes 8 and 9) limits the amount of prefetch. The drive does not use the Prefetch Ceiling field (bytes 10 and 11).

During a prefetch operation, the drive crosses a cylinder boundary to fetch more data only if Mode parameters page 08h, byte 2, bit 4 is set to 1 (Discontinuity—DISC bit).

When prefetch (read look-ahead) is enabled (enabled by DRA = 0), it operates under the control of ARLA (Adaptive Read Look-Ahead). If the host uses software interleave, ARLA enables prefetch of contiguous blocks from the disc when it se nses that a prefetch hit will likely oc cur, even if two consecutive read operations were not for phy sically contiguous blocks of data (e.g. “software interleave”). ARLA disables prefetch when it decides that a prefetch hit will not likely occur. If the host is not using software interleave, and if two sequential read operations are not for contiguous blocks of data, ARLA disables prefetch, but as long as sequential read operations request contiguous blocks of data, ARLA keeps prefetch enabled.

Cheetah 36FC Product Manual, Rev. D 13

5.0 Reliability specifications

The following reliability specifications assume correct host and drive operational interface, including all interface timings, power supply voltages, and environmental requirements.

Seek error rate: Recoverable media error rate

Less than 10 errors in 10 Less than 10 errors in 10

(using OEM default settings): Unrecovered media data: Miscorrected media data: Interface error rate:

Less than 1 sector in 10 Less than 1 sector in 10 Less than 1 error in 10

Less than 1 error in 10

See Section 9.6.4, "Differential PECL input." on page 56 MTBF: 1,000,000 hours Service life: 5 years Preventive maintenance: None required

5.1 Error rates

The erro r rat es stated i n this manual assume the fol lowing:

• The drive is operated in accordance with this manual using DC power as defined i n paragraph 6.2, "DC power requirements."

• The drive has been formatted with the FC-AL Format command.

• Errors caused by media defects or host system failures are excluded from error rate computations.

• Assume random data.

seeks

bits transferred

bits transferred with minimum receive eye.

bits transferred with typical receive eye.

5.1.1 Environmental interference

When evaluating systems operation under condit ions of electromagnetic interference (EMI), the performance of the drive within the system is c onsid ered acceptable if the drive does not generate an unrecoverable condition.

An unrecoverable error, or condition, is defined as one that:

• is not detected and corrected by the drive itself

• is not detected from the error or fault status provided through the drive or FC-AL interface

• is not recovered by normal drive or system recovery procedures without operator intervention

5.1.2 Interface errors

An interface error is defined as a failure of the receiver on a port to recover the data as transmitted by the device port connected to the receiver. The error may be detected as a running disparity error, illegal code, loss of word sync, or CRC error. The total error rate for a loop of devices is the sum of the individual device error rates.

5.1.3 Write erro rs

Write errors can occur a s a result of media defects, environmental interference, or equipment m alfunction. Therefore, write errors are not predictable as a function of the number of bits passed.

If an unrecoverable write error occurs because of an equipment malfunction in the drive, the error is classified as a failure affecting MTBF. Unrecoverable write errors are those t hat c ann ot be correc ted within two attempts at writing the record with a read verify after each attempt (excluding media defects).

14 Cheetah 36FC Product Manual, Rev. D

5.1.4 Seek errors

A seek error is defined as a failure of the drive to position the heads to the addressed track. If the error recovery fails, a seek positioning error (15h) is reported with a Medium (03h) or Hardware Error (04h) reported in the sense key. This is an unrec overable seek error. Unrecoverable seek errors are classified as failures for MTBF calculations. Refer to the Fibre Channel Interface Manual, part number 77767496, for Request Sense information.

5.2 Reliability and service

You can enhance the reliability of Cheetah 36FC disc drives by ensuring that the drive receives adequate cooling. Section 6.0 provides recommended ai r-flow information, temperature meas urements, and other i nformation, which you can use to enhance the service life of the drive.

5.2.1 Mean time between failure (MTBF)

The production disc drive achieves an MTBF of 1,000,000 hours when operated in an environment that ensures the case temperatures spe cified in Section 6.4.1 a re not exceeded. Shor t-term excursions up to t he specification limits of the operating environment will not affect MTBF performanc e. Operating the dr ive at case temperatures above these values will adversely affect the drive’s ability to meet specifications. See Section 6.4, "Environmental limits".

The MTBF target is specified as device power-on hours (POH) for all drives in service per failure. The following expression defines MTBF:

MTBF per measurement period = Estimated power-on operating hours in the period

Number of drive failures in the period

Estimated power-on operating hours means power-on hours per disc drive times the total number of disc drives in service. Each disc drive must have accumulated at least nine months of operation. Data is calculated on a rolling average base for a minimum period of six months.

MTBF is based on the following assumptions:

• 8,760 power-on hours per year

• 250 average on/off cycles per year

• Operating at nominal voltages

• System provides adequate cooling to ensure the case temperatures specified in Section 6.4.1 are not

exceeded. Drive failure means any stoppage or failure to meet defined specifications caused by drive malfunction. A S.M.A.R.T. predictive failure indicates that the drive is deteriorating to an imminent failure and is considered

an MTBF hit.

5.2.2 Field failure rate vs time

The expected field failure rate is listed below . Drive utilization will vary. An estimate range of utilization is:

• 720 power-on hours (POH) per month

• 250 on/off cycles per year

• System provides adequate cooling to ensure the case temperatures specified in Section 6.4.1 are not

exceeded.

Month Parts per million (PPM)

1 2,364 2 1,422 3 1,403 4 1,391 5 1,317 6 1,255 7 1,162 8+ 1,025

Cheetah 36FC Product Manual, Rev. D 15

Failure rate is calculated as follows:

• No system-induced failures counted

• PPM targets include 30% no defect found and handling failures

• Based on 1,000,000 MTBF and 720 POH per month

• Month 1’s rate includes a 300 PPM installation failure

5.2.3 Preventive maintenance

No routine scheduled preventiv e maintenance is required.

5.2.4 Service life

The drive has a useful service li fe of five years. Depot repair or replacement of major par ts is per mitted during the lifetime.

5.2.5 Servi c e philosophy

Special equipment is required to repai r the dri ve HDA. To achieve the above service life, repairs must be performed only at a properly equipped and staffed Seagate ser vice and repair facility. Troubleshooting and repair of PCBs in the field is not recommended because of the extensive diagnostic equipment required for effective servicing. There are not spare parts available for this drive. The drive warranty is voided if the HDA is opened.

5.2.6 Service tools

No special tools are required for site installation or recommended for site maintenance. Refer to Section 5.2.5. The depot repair philosophy of the drive precludes the necessity for special tools. Field repair of the drive is not practical because users cannot purchase individual par ts for the drive.

5.2.7 Hot plugging the driv e

Inserting and re moving the drive on the FC-AL will interrup t loop operation. The interruption occ urs when the receiver of the next device in the loop must synchronize to a different input signal. FC e rror detection m echanisms, character sync, running disparity, word sync, and CRC are able to detect any error. Reco very is initiated based on the type of error.

The disc drive defaults to the FC-AL Monitoring state, Pass-through state, when it is powered-on by switching the power or hot plugged. The control line to an optional por t bypass circuit (extern al to the drive), defaults to the Enable Bypass state. If the bypass circuit is present, the next device in the loop will continue to receive the output of the previous device to the newly inserted device. If the bypass circuit is not present, loop operation is temporarily disrupted until the next device starts receiving the output from the newly inserted device and regains synchronization to the new input.

The Pass-through state is disabled while the drive performs self test of the FC interface. The control line for an external port bypass circuit remains in the Enable Bypass state while self test is running. If the bypass circuit is present, loop operation may continue. If the bypass circuit is not present, loop operation will be halted while the self test of the FC interface runs.

When the self test completes successfully, the control line to the bypass circuit is disabled and the drive enters the FC-AL Initializing state. The receiver on the next device in the loop must synchronize to output of the newly inserted drive.

If the self-test fails, the control line to the bypass circuit remains in the Enable Bypass state.

Note.

It is the responsibility o f the sy stems integrator to as sure t hat no temperature, energy, voltage hazard, or ESD potential hazard is presented during the hot connect/disconnect operation. Discharge the static electricity from the drive carrier prio r to inserting it into the syst em.

Caution.

The drive motor must come to a complete stop prior to changing the plane of operation. This time is required to insure data integrity.

16 Cheetah 36FC Product Manual, Rev. D

5.2.8 S.M.A.R.T.

S.M.A.R.T. is an ac ronym for Self-Monitoring Analysis and Re por ting Technology. This technology is intended to recognize conditions that in dicate imminent drive failure and is designed to provide sufficient warning o f a failure to allow you to back up the data before an actual failure occurs.

Note.

The dr ive’s firmware monitors specific attributes for degradation over time but can’t predict instantaneous drive failures.

Each monitored attribute has been selected to monitor a specific set of failure conditions in the operating performance of the drive and the thresholds are optimized to minimize “false” and “failed” predictions.

Controlling S.M.A.R.T.

The operating mode of S.M.A.R.T. is controlled by the DEXCPT and PERF bits on the Informational Exceptions Control mode page (1Ch). Use the DEXCPT bit to enable or disable the S.M.A.R.T. feature. Setting the DEXCPT bit disables all S.M.A.R.T. functions. When enabled, S.M.A.R.T. collects on-line data as the drive performs normal read and wri te operations. When the PERF bit is set, the drive is considered to be in “On-line Mo de Only” and will not perform off-line functions.

You can measure off-line attributes and force the drive to save the data by using the Rezero Unit command. Forcing S.M.A.R.T. resets the timer so that the next scheduled interrupt is in two hours.

You can interrogate the drive through the host to determine the time remaining before the next scheduled measurement and data logging process occurs. To accomplish this, issue a Log Sense command to log page 0x3E. This allows you to control when S.M.A.R.T. interruptions occur. Forcing S.M.A.R.T. with the RTZ command rese ts th e time r.

Performance impact

S.M.A.R.T. attribute data is saved to the disc so that the events that caused a predictive failure can be recreated. The drive measures and saves parameters once every two hours subject to an idle period on the FC-AL bus. The process of measuring off-line attribute data and saving data to the disc is uninterruptable. The maximum on-line only processing delay is summarized below:

Maximum processing delay

S.M.A.R .T. delay t im es

On-line on ly d e la y DEXCPT = 0, PERF = 1

50 milliseconds

Fully-enabl ed delay DEXCPT = 0, PERF = 0

300 milliseconds

Repor tin g c on t rol

Reporting is controlled by the MRIE bits in the Informational Ex ceptions Control mode page (1Ch). Subjec t to the reporting method, the firmwa re will issue to the host an 01-5Dxx sense code. The error code is preserved through bus resets and power cycles.

Determining rate

S.M.A.R.T. monitors the rate at which errors occur and signals a predictive failure if the rate of degraded errors increases to an unacceptable level. To determine rate, error events are logged and compared to the number of total operations for a given attribute. The interval defines the number of operations over which to measure the rate. The counter that keeps track of the current number of operations is referred to as the Interval Counter.

S.M.A.R.T. measures error rates. All errors for each monitored attribute are recorded. A counter keeps track of the number of errors for the current interval. This counter is referred to as the Failure Counter.

Error rate is the number of errors per operation. The al gorithm that S.M.A.R.T. uses to record rates of error is to set thresholds for the number of errors and their interval. If the number of errors exceeds the threshold before the interval expires, the error rate is considered to be unacceptable. If the number of errors does not exceed the threshold before the interval expires, the error rate is considered to be acceptable. In either case, the interval and failure counters are reset and the process starts over.

Cheetah 36FC Product Manual, Rev. D 17

Predictive failures

S.M.A.R.T. signals predi c tive failures when the drive is performing unacceptably for a period of tim e. The firmware keeps a running count of the number of times the error rate for each attribute is unacceptable. To accomplish this, a counter is increment ed each t ime the error rate is una cceptable and decrem ented (not to exceed zero) whenever the error rate is acceptable. If the counter continually increments such that it reaches the predictive threshold, a predictive failure is signaled. This counter is referred to as the Failure History Counter. There is a separate Failure History Counter for each attribute.

5.2.9 Product warranty

Beginning on the date of ship ment to t he cus tomer an d c ontinuing for a period o f five years, Seagate warrants that each product (inc luding compone nts and s ubassemblies) that fails to function proper ly und er norm al use due to defect in materials or workmanship or due t o nonconformance to the applicable specifications will be repaired or replaced, at Seagat e’s option and at no charge to the customer, if returned by customer at cus tomer’s expense to Seagate’s designated facility in accordance with Seagate’s warranty procedure. Seagate will pay for transporting the repair or replacement item to the customer . For more detailed warranty inf ormation, refer to the standard terms and conditions of purchase for Seagate products on your purchase documentation.

The remaining warranty for a particular drive can be determined by calling Seagate Customer Service at 1-800-468-3472. You can also deter mi ne rem ain ing warranty using t he Sea gate web s ite (www.seagate.com). The drive serial number is required to determine remaining warranty information.

Shipping

When transporting or shipping a drive, use only a Seagate-approved container. Keep your original box. Seagate approved containers are easily identified by the Seagate Approved Package label. Shipping a drive in a non-approved container voids the drive warranty.

Seagate repair centers may refuse recei pt of compon ent s im properly packaged or obviously damage d in transit. Contact your authorized S eagate distr ibutor to purchase a dditional boxes. Seagate recommends shipping by an air-ride carrier experienced in handling computer equipment.

Product repair and re turn information

Seagate customer service centers are the only facilities authorized to service Seagate drives. Seagate does not sanction any third-party repair facilities. Any unauthorized repair or tampering with the factory seal voids the warranty.

Cheetah 36FC Product Manual, Rev. D 19

6.0 Physical/electrical specifications

This section provides information relating to the physical and electrical characteristics of the drive.

6.1 AC power requirem ents

None.

6.2 DC power requirements

The voltage and current requirements for a single drive are shown below. Va lues indicated apply at t he drive connector.

T able 1: DC power requirements

ST136403FC/FCV

Notes (Amps) (Amps)

Voltage +5V +12V [2] Regulation [5] ±5% ±5% [2] Avg id le curren t DCX [1] [7] 1.03 0.99 Maximum starting current

(peak DC) DC [3] 1.12 2.24

(peak AC) AC [3] 1.62 3.7 Dela yed motor start (max ) D C [1] [4] 0.97 0.0 4 Peak oper ating current: Typical DCX Maximum DC [1] 1.13 1.39 Maximum (peak) DC 1.48 3.12

[1] [6] 1.1 1.32

[1] Measured with average reading DC ammeter. Instantaneous +12V current peaks will exceed these val-

ues. Power supply at nominal voltage.

[2] For +12 V, a –10 % t olerance is a llowed dur ing initial s pindle s tart but must return to ±5% before reaching

10,000 RPM. The ±5% must be maintained after the drive signifies that its power-up sequence has been

completed and that the drive is able to accept selection by the host initiator. [3] See +12V current profile in Figure 3. [4] This condition occurs when t he Motor Star t option is ena bled and the drive has not yet received a St art

Motor co mm a n d. [5] See paragraph 6.2.1, "Conducted noise immunity." Specified voltage tolerance includes ripple, noise, and

transient response. [6] Operating condition is defined as random 8 block reads at 166 I/Os per second. Current and power speci-

fied at nominal voltages. Decreasing +5 volt supply by +5% increases 5 volt current by < 1.5%. Decreas-

ing +12 volt supply by 5% increases +12 volt current by 2.9%. [7] During idle, the drive heads are re located every 60 seconds to a random loca tion within the band from

track zero to one-fourth of maximum track.

General DC power requirement notes.

1. Minimum current loading for each supp ly voltage is not le ss than 1. 5% of the m aximum operating current

shown.

2. The +5V and +12V supplies should employ separate ground returns.

3. Where power is provided to multiple drives from a common supply, careful consideration for individual drive

power requirements should be noted. Where multiple units are powered on simultaneously, the peak starting current must be available to each device.

4. Parameters, other than spindle start, are measured after a 10-minute warm up.

5. No terminator power.

20 Cheetah 36FC Product Manual, Rev. D

6.2.1 Conducted noise immunity

Noise is specified as a per iodic and random distri bution of frequencies covering a band from DC to 10 MHz. Maximum allowed noise values given below are peak-to-peak measurements and apply at the dri ve power connector.

+5V +12V (with spindle motor not running)

0 to 100 kHz 150mV 150mV 100 kHz to 10 MHz 100mV 100mV

6.2.2 Power sequencing

The drive does not req uire power sequenc ing. The d rive protects against inadvertent writing d uring power-up and down.

6.2.3 Curre nt prof ile s

Figure 3 identifies the drive +12V current pro file and Figure 4 identifies the dr ive +5V current profile. The current during the various times is as shown:

T0 Power is applied to the drive. T1 Controller self-tests are per formed. T2 Spindle begins to accelerate under current limiti ng after performing internal diagnostics. T3 Spindle is up to speed and the Head-Arm restraint is unlocked. T4 The adaptive servo calibration sequence is perfor m ed. T5 Calibration is complete and the drive is ready for reading and writing.

Note:

All times and currents are typical. See Table 1 for maximum current requirements.

+12 Volt Current during spindle start – Typical Amperes

3.0

2.5

2.0

1.5

Amps

1.0

0.5

0.0

Average value of waveform

T0 T1 T2 T3 T4

Envelope of waveform

0 2 4 6 810121416

Seconds

Figure 3. Typical Cheetah 36FC drive +12V current profil e

Cheetah 36FC Product Manual, Rev. D 21

+5 Volt Current during spindle start – Typical Amperes

Average value of waveform

1.5

1.0

Amps

0.5

0.0 T2T1 T4T3 T5T0

0 4 8 121620242832

Seconds

Figure 4. Typical Cheetah 36FC drive +5V current profil e

Envelope of waveform

22 Cheetah 36FC Product Manual, Rev. D

6.3 Power dissipation

Typical power dissipation under idle conditions is 17 watts (58 BTUs per hour). To obtain operating p ower for typical random read operations, refer to the following I/O rate curve (see Figure

5). Locate the typical I/O rate for a drive in your system on the ho rizontal axis an d read the correspon ding +5 volt current, +12 volt current, and total watts on the vertical a xis. To calculate BTUs per hour, multiply watts by

3.4123.

1.800

1.600

1.400

1.200

1.000

Amperes

0.800

0.600

0.400 0 50 100

I/Os per Second

Figure 5. DC current and power vs. input/output operations per second

150 200

21 19

17 15

5V A 12V A Watts

Watts

6.4 Envi ronmental li m i ts

Temperature and humidity values experienced by the drive must be such that con dens ation do es not oc cur on any drive part. Altitude and atmospheric pressu re 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 t o m aintain t he cas e tem peratures of Table 2, the dr ive meets al l spec ificat ions over a 41°F to 122°F (5 °C to 50°C) drive ambient temperature range with a maximum tempe rature gradient of 36°F (20°C) per hour. The enclosure for the drive should be designed such that the temperatures at the locations specified in Table 2 are not exceeded. Air flow may be needed to achieve these temperature values (see Section 8.4 and 8.4.1). Op eration 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 specified in Table 2 are not exceeded. Occasional excursions to drive ambient temperatures of 122°F (50°C) or 41°F (5°C) may occur without impact to specified MTBF. Air flow may be needed to achieve these temperatures (see Section 8.4.1). C ontinual or sustained operation at case temperatures above these values may degrade MTBF.

To confir m that the required cooling for the electronics and HDA is provided, place the dr ive in its final mechanical configuration, perform random write/read operat ions. After the temperatures stabilize, measure the case temperature of the components listed in Table 2 (see note [2]).

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.

Cheetah 36FC Product Manual, Rev. D 23

T able 2: PCBA and HDA temperatures

Maximum allowable case [3] temperatures (°C) to meet MTBF spec.

Items in Figure 6

Maximum allo wa ble case temperature ( operating

HDA [2] 60 45 1 (Processor) 63 43 2 (A/D Demod) 81 61 3 (FC Interface) 91 71 4 (Motor Driver) 66 46

Notes.

[1] Section 8.3.1 de scribes the air-flow patter ns used w hen generating the 1 milli on hours M TBF guide-

lines in column 2. Air flow was opposite that s hown in Sect ion 8 .3.1. Loc al air velocity was 1.68 m /s ec (330 lfpm). Inlet air temperature to the dr ive was 77 °F (25°C), plus 9°F (5°C) temperature rise in the

test enclosure (86°F/30°C ambient local to the drive). [2] Measure HDA temp at point labeled “HDA” on Figure 6. [3] PCB mounted integrated circuit case.

b. Non-operating

–40° to 158°F (–40° to 70°C) package ambient with a maximum gradient of 36°F (20°C) per hour. This specification assumes that the drive is packaged in the shipping container designed by Seagate for use with drive.

HDA Temp.

Check Point

Figure 6. Locations of PCBA components listed in Table 2

1.0"

.5"

24 Cheetah 36FC Product Manual, Rev. D

6.4.2 Relative humidity

The values below assume that no condensation on the drive occurs. a. Operating

5% to 95% non-condensing relative humidity with a maximum gradient of 10% per hour.

b. Non-operating

5% to 95% non-condensing relative humidity.

6.4.3 Effective altitude (sea level)

a. Operating

–1,000 to +10,000 feet (–305 to +3,048 meters)

b. Non-operating

–1,000 to +40,000 feet (–305 to +12,210 meters)

6.4.4 Shock and vibration

Shock and vibration limits specified in th is document are measured di rec tly on the drive chassis. If the drive is installed in an enclosure to which the stated shock and/or vibration criteria is app lied, resonances may occur internally to the enclosure resulting in drive movement in excess of the stated limits. If this situation is apparent, it may be necessary to modify the enclosure to minimize drive movement.

The limits of shock and vibration defined within this document are specified with the drive mounted by any of the four methods shown in Figure 7 , and in ac cordance wit h the restri ctions of Sec tion 8.5. O rientation of the side nearest the LED may be up or down.

6.4.4.1 Shock

a. Operating—normal

The drive, as installed for normal operation, shall operate error free while subjected to intermittent shock not exceeding 5.0 Gs at a m aximum duration of 11 msec (h alf sinewave). Shock may be applied in the X, Y, or Z axis.

b. Operating—abnormal

Equipment, as installed for nor mal operation, does not incur physical damage while subject ed to intermittent shock not exceeding 10 Gs at a maxim um duration of 11 msec (half sinewave). Shock occurring at abnormal levels may promote degraded operational performance during the abnormal shock period. Specified operational performance will continue when normal operating shock levels resume. Shock may be applied in the X, Y, or Z axis. Shock is not to be repeated more than two times per second.

c. Non-operating

The limits of non-operating shock shall apply to all conditions of handling and transportation. This includes both isolated drives and integrated drives.

The drive subjected to nonrepetitive shock not exceeding 75 Gs at a maximum duration of 11 msec (half sinewave) shall not exhibit device damage or performance d egradation. Shock may be applied in the X, Y, or Z axis.

The drive subjected to nonrepetitive shock not exceeding 175 Gs at a maximum duration of 2 msec (half sinewave) does not exhibit device damage or performance degradation. Shock may be applied in the X, Y, or Z axis.

The drive subjected t o nonrepetitve shock not exceeding 90 Gs at a maximum duration of 0.5 msec (half sinewave) does not exhibit device damage or performance degradation. Shock may be applied in the X, Y, or Z axis.

Cheetah 36FC Product Manual, Rev. D 25

d. Packaged

Disc drives shipped as loose load (not palletized) general freight will be package d to withstand d rops from heights as defined in the table below. For additional details refer to Seagate specifications 30190-001 (under 100 lbs/45 kg) or 30191-001 (over 100 lbs/45 Kg).

Pack age size Packa ged/product weight Drop height

<600 cu in (<9,800 cu cm) Any 60 in (1524 mm) 600-1800 cu in (9,800-19,700 cu cm) 0-20 lb (0 to 9.1 kg) 48 in (1219 mm) >1800 cu in (>19,700 cu cm) 0-20 lb (0 to 9.1 kg) 42 in (1067 mm) >600 cu in (>9,800 cu cm) 20-40 lb (9.1 to 18.1 kg) 36 in (914 mm)

Drives packaged in single or multipacks with a gross weight of 20 pounds (8.95 k g) or less by Seagate for general freight shipment shall withstand a drop test from 48 i nches (1,070 mm ) against a concrete floor or equivalent.

Y X

Figure 7. Recommended mounting

26 Cheetah 36FC Product Manual, Rev. D

6.4.4.2 Vibration

a. Operating - normal

The drive as installed for normal operation, shall comply with the complete specified performance while subjected to continuous vibration not exceeding

5-400 Hz @ 0.5 G

Vibration may be applied in the X, Y, or Z axis.

b. Operating - abnormal

Equipment as installe d for normal operation shall not incur physical damage while subjected to periodic vibration not exceeding:

15 minutes of duration at major resonant frequency 5-400 Hz @ 0.75 G (X, Y, or Z axis)

Vibration occurring at these levels may degrade operational performance during the abnormal vibration period. Specified operational performance will continue when normal operating vibration levels are resumed. This assumes system recovery routines are ava ila ble.

c. Non-operating

The limits of non-operating vibration shall apply to all conditions of handling and transportation. This includes both isolated drives and integrated drives.

The drive shall not incur physical damage or degraded performance as a result of continuous vibration not exceeding

5-22 Hz @ 0.040 inches (1.02 mm) displacement 22-400 Hz @ 2.00 G

Vibration may be applied in the X, Y, or Z axis.

6.4.5 Air cleanliness

The drive is designed to operate in a typical office environment with minimal environmental control.

6.4.6 Acoustics

Sound power during idle mode shall be 4.3 bels typical when measured to ISO 7779 specification. There will not be any disc rete tones more than 10 dB above the masking noise on typical drives when m ea-

sured according to Seagate specificat ion 30553-0 01. There wil l not be a ny tones mo re than 24 dB above the mas king noise on any drive.

6.4.7 Electromagnetic susceptibility

See Section 2.1.1.1.

Cheetah 36FC Product Manual, Rev. D 27

6.5 Mechanical specifications

The following nominal dimensions are exclusive of the decorative front panel accessory. However, dimensions of the front panel are shown in figure below. Refer to Figure 8 for detailed mounting configuration dimensions. See Section 8.5, “Drive mounting.”

Heig h t: 1.6 in 40.6 4 mm Width: 4.000 in 101.6 mm Depth: 5.75 in 146.05 mm Weight: 2.0 pounds 0.907 kilograms

-Z-T//

-Z- -X-N

-Z-

-X-

[1]

-Z-

Notes:

Mounting holes are 6-32 UNC 2B, three

[1]

on each side and four on the bottom. Max screw penetration into side of drive is 0.15 in. (3.81 mm). Max screw tightening torque is 6.0 in-lb (3.32 nm) with minimum full thread engagement of

0.12 in. (3.05 mm).

Dimension Table

Inches

1.654

5.787

4.000

3.750

0.125

1.750

1.625

1.122

4.000

0.250

1.638

0.181 .040

1.625

1.618

0.315 .015 .015

max max

± .010 ± .010 ± .010 ± .010 ± .020 ± .020 ± .010 ± .010 ± .010 ± .020

max

± .020 ± .003 ± .040

max max

B C D E F G H J K L M N P R S T U

Millimeters

42.01

147.00

101.60

92.25

3.18

44.45

41.28

28.50

101.60

6.35

41.60

4.60

1.20

41.28

41.10

7.00

0.38

max max

± .25 ± .25 ± .25 ± .25 ± .50 ± .50 ± .25 ± .25 ± .25 ± .50

max

± .50 ± .08 ± 1.02

max max

-X-

Figure 8. Mounting configuration dimensions

Cheetah 36FC Product Manual, Rev. D 29

7.0 Defect and error management

The drive, as delivered, complies with this p roduc t manua l. The read error rates and spec ified storage ca pacities are not dependent upon use of defect management routines by the host (initiator).

Defect and error management in the S CSI protocol involves the drive internal defect/error management and FC-AL system error considerations (errors in communications between the initiator and the drive). T ools f or use in designing a defect/error management plan are briefly outlined in this section. References to other sections are provided when necessary .

7.1 Drive internal defects/errors

During the initial drive format operation at the factory, media defects are identified, tagged as being unusable, and their locations recorded on t he drive primary de fects list (referred to as the “P’ list and also as the E TF defect list). At factory format time, these known defects are also reallocated, that is, reassigned to a new place on the medium and the locati on listed in the defects reallocation table. The “P” list is not altered after factory formatting. Locations of defects found and reallocated during error recovery procedures after drive shipment are listed in the “G” list (defects growth list). The “P” and “G” lists may be referenced by the initiator using the Read Defect Data command.

Details of the SCSI commands suppor ted by the drive are described in the Fibre Channel Interface Manual. Also, more information on the drive Error Recovery philosophy is presented in the Fibre Channel Interface Manual.

7.2 Drive error recovery procedures

When an error occurs during drive operation, the drive, if programmed to do so, performs error recovery procedures to attempt to recover the data. The error recovery procedures used depend on the options previously set in the Error Recovery Parameters mode page. Error recovery and defect management may involve using several SCSI comm ands described in t he Fibre Channel Interface Manual. The drive implements selectable error recovery time limits required in video applications.

The error recovery scheme supported by the drive provides a way t o control the total error recovery time for the entire co m ma nd in add ition to co ntrolling the r ecovery level for a si n gle LBA. The total am ou nt of time spent in error recovery for a command can be limited using the Recovery Time Limit bytes in the Error Recovery mo de page. The total amount of time spent in error recovery for a single LBA can be limited using the Read Retr y Count or Write Retry Count bytes in the Error Recovery mode page.

The drive firmware error recovery algorithms consists of 12 l evels for read recoveries and five levels for wr ite. Each level may consist of multiple steps, where a step i s defined as a rec overy function involving a single reread or re-write attempt . The maxi mum level used by the dr ive in LBA rec overy is de ter m ined by the read and write retry counts.

Table 3 eq uates the read and wr ite retry count with the maximum possible recovery time for read and write recovery of individual LBAs. The times given do not include time taken to perform reallocations. Reallocations are performed when the ARRE bit (for reads) or AWRE bit (for writes) is one, the RC bit is zero, and the recovery time limit for the command has not yet been met. Time needed to perform reallocation is not counted against the recovery time limit.

When the RC bit is one, reallocations are disabled even if the ARRE or AWRE bits are one. The drive will still perform data recovery actions within the limits defined by the Read Retry Count, Write Retry Count, and Recovery Time Limit parameters. However, the drive does not report any unrecovered errors.

30 Cheetah 36FC Product Manual, Rev. D

Table 3: Read and write retry count maximum recovery times

Maximum recovery time per

Read retry count

0 65.7 0 35.8 1 77.6 1 53.7 2 89.6 2 59.7 3 113.4 3 77.6 4 149.3 4 185.1 5 197.0 5 (default) 226.9 6 244.8 7 334.3 8 394.0 9 441.8 10 549.2 11 2,009.2 12 (default ) 4,283.8

LBA (cumulative, msec)

Write retry count

Maximum recovery time per

LBA (cumulative, msec)

[1] Setting these retry count s to a value below the default setting could result in degradation of the unrecov-

ered error rate. For example, suppose the read/write recovery page has the RC bit = 0, the read retry count set to 4, and the recovery time limit set to 450. A 4-block read command can take up to 149.3 msec recovery time for each bl oc k and a maximum of 450 msec recovery for all four blocks. If either of these limits is reached and a block has not yet been recovered, the command will en d with Che ck Conditi on status and an unrecoverable read error will be reported.

7.3 FC-AL system errors

Information on the repor ting of operational errors or faults across the interface is given in the Fibre Channel Interface Manual. The FCP Response returns information to the host about numerou s kinds of errors or faults.

The Receive Diagnostic Results reports the results of diagnostic operatons performed by the drive. Status returned by the drive to the initiator is described in the Fibre Channel Interface Manual. Status reporting

plays a role in systems error management and its use in that respect is described in sections where the various commands are discussed.

Cheetah 36FC Product Manual, Rev. D 31

8.0 Installation

Cheetah 36FC disc drive installation is a plug-and-play process. There are no jumpers, switches, or terminators on the drive. Simply plug the drive into the host’s 40-pin Fibre Channel backpanel connec tor (FC-SCA) no cables are required. See Section 9.5 for additional information about this connector.

Use the FC-AL interface to select drive ID and all option configurations for devices on the loop. If multiple devices are on the same FC-AL and physical addresses are used, set the device selection IDs (SEL

IDs) on the backpanel so that no two devices have the same selection ID. This is called the hard assigned arbitrated loop physical address (AL_PA ). There are 125 AL_ PAs available (see Ta ble 22 on page 54). If you set the AL_PA on the backpanel to any value other than 0, the device plugged into the backpanel’s SCA connector inherits this AL_PA. In the event you don’t successfully assign un ique hard addresses (and th erefore h ave duplicate selection IDs assigned to two or more devices), the FC -AL ge nerates a m essage indicating this condition. If you set the AL_PA on the backpanel to a value of 0, the system issues a unique soft-assigned physical address automatically.

Loop initialization is the process used to verify or obtain an address. The loop initialization process is performed when power is applied to the drive, when a device is added or removed from the Fibre Channel loop, or when a device times out attempting to win arbitration.

• Set all option selections in the connector prior to applying power to the drive. If you change options after applying power to the drive, recycle the drive power to activate the new settings.

• It is not necessary to low-level format this drive. The drive is shipped from the factory low-level formatted in 512-byte logical blocks. You need to reformat the drive only if you want to select a different logical block size.

—

8.1 Drive ID/option selection

All drive options are made through the interface connector (J1). Table 19 on page 50 provides the p in descriptions for the 40-pin Fibre Channel single connector (J1).

8.2 LED connections

A connector, J6, is provided on the printed circuit board assembly (PCBA) to provide port bypass, drive active, and drive fault LED connections (see Figure 10 on page 32). See Sections 9.5.7, 9.5.8, and 9.5.9 for descriptions of LED functions.

Figure 9. Physical interface

32 Cheetah 36FC Product Manual, Rev. D

Drive Front

Pin 1

Reserved

Port A Bypass LED [1] Port B Bypass LED [1] Fault LED [1] Reserved Active LED [2] +5V Active LED [1] Ground [3]

[1] The drive has a 2.2K ohm resist or in series with this LED driver. Tie the minus side of an

external high-efficiency LED (i.e., 2ma) to this pin. Connect the plus side of the LED to +5V.

[2] An external current-limiting resistor is required when connecting an LED to this pin. The

minus side of the resistor/LED combination is connected to this pin. Connect the plus side to +5V.

[3] Jumper storage location (across pins 2 and 4).

Figure 10. LED indicator connector

8.2.1 J6 connector requirements

Recommended mating connector part number: Berg receptacle, 6-position, Berg part number 690-006.

8.3 Drive orientation

The drive may be moun ted in any orientation. All dr ive performance characterizations, however, have been done with the drive in horizontal (discs level) and vertical (drive on its side) orientations, which are the two preferred mounting orientations.

8.4 Cooling

Cabinet cooling must be designed by the customer so that the amb ient temp erature immediately s urrounding the drive will not exceed temperature con ditions specified in Sec tion 6.4.1, "Temperature." Specific consideration should be given to make sure adequate air circulation is present around the printed circuit board (PCB) to meet the requirements of Section 6.4.1, "Tem perature."

8.4.1 Air flow

The rack, cabinet, or drawer environment for the drive must provide heat removal from the electronics and head and disc assembly (HDA). You should confirm that adequate heat removal is provided using the temperature measurement guidelines described in Section 6.4.1.

Forced air flow may be required to keep temperatures at or below the specified case temperatures of Table 2, in which case the drive should be oriented, or air flow directed, so that the least amount of air flow resistance is

Cheetah 36FC Product Manual, Rev. D 33

created while providing air flow to the electronics and HDA. Also, the shortest possible path between the air inlet and exit should be chosen to minimize the travel length of air heated by the drive and other heat sources within the rack, cabinet, or drawer environment.

If forced air is determined to be neces sary, possible air-flow patterns are shown in Figure 11 . The ai r-flow patterns are created by one or more fans, either forcing or drawing air as shown in the illustrations. Conduction, convection, or other forced air-flow patterns are acceptable as long as the temperature measurement guidelines of Section 6.4.1 are met.

Above unit

Under unit

Above unit

Under unit

Figure 11. Air flow

Note. Air flows in the direction shown (back to front)

or in reverse direction (front to back)

Note. Air flows in the direction shown or in reverse direction (side to side)

8.5 Drive mounting

Mount the drive using the bottom or side mounting holes. If you mount the drive using the bottom holes, ensure that you do not physically distort the drive by attempting to mount it on a stiff, non-flat surface.

The allowable mounting surface stiffness is 80 lb/in (14.0 N/mm). The following equation and paragraph define the allowable mounting surface stiffness:

K x X = F < 15lb = 67N

where K is the mounting surface stiffness (units in lb/in or N/mm) and X is the out-of-plane surface distor tion (units in i nches or milli meters ). Th e out-of- plane di stor tion (X ) is deter mine d by defini ng a plane with three of the four mounting points fixed and evaluating the out-of-plane def lection of the fourth mounting point when a known force (F) is applied to the fourth point.

Note.

Before mounting the drive in any kind of 3.5-inch to 5.25-inch adapter frame, verify with Seagate Technology that the drive can meet the shock and vibration specifications given herein while mounted in such an adapter frame. Adapter frames that are available may not have a mechanical struct ure capable of mounting the drive so that i t can meet t he shoc k and vibration specifications listed in this manual.

34 Cheetah 36FC Product Manual, Rev. D

8.6 Grounding

Signal ground (PCBA) and HDA ground are connected together in th e drive and cannot be separated by the user. The equipment in which the drive is mounted is connected di rectly to the HDA and PCBA with no el ec tr ically isolating shock mounts. If it is desired for the system chassis to not be connected to the HDA /PCBA ground, the systems integrator or user must provide a nonconduc tive (electrically isolating) met hod of mount ing the drive in the host equipment.

Increased radiated emissions may result if you do no t provide the maximum s urface area ground connection between system ground and drive ground. This is the system designer’s and integrator’s responsibility.

Cheetah 36FC Product Manual, Rev. D 35

9.0 Interface requirements

This section partially descr ib es the interface requirements as implement ed on S T13 6403F C/FC V dr ives. Additional information is provided in the Fibre Channel Interface Manual (part number 77767496).

9.1 FC-AL features

This section lists the Fibre Channel-specific features supported by ST136403FC/FCV drives.

9.1.1 Fibre Channel link service frames

Table 4 lists the link services supported by ST136403FC/FCV drives.

Table 4: Link services supported

Type of frame Link service

Basic link service frames Abort Sequence (ABTS) Basic link service reply frames Basic_Accept (BA_ACC)

Basic_Reject (BA_RJT)

Extended link service frames N_Port Login (PLOGI)

Fabric Logi n (FLOG I) Logout (LOGO) Process Login (PRLI) Process Logout (PRLO) Read Link Status (RLS) Fabric Addre ss Notification (FAN) Port Discovery (PDISC) Address Discovery (ADISC) Third-party Process Logout (TRPLO)

Extended link service reply fr am es Accept (ACC)

Link Service Reject (LS_RJT)

Fibre Channel Services Register FC-4 Types (RFT_ID)

9.1.2 Fibre Channel task management functions

Table 5 lists the Fibre Chan nel SC SI Fibre Channel Protocol (FC S CS I FCP ) task m anagem ent func tions s upported.

Table 5: Fibre Channel SCSI FCP task management functions

T ask nam e Supported

Ter minate task No Clear ACA Yes Target reset Yes Clear task set Yes Abort task set Yes

9.1.3 Fibre Channel task management response s

Table 6 lists the FC SCSI FCP response codes returned for task management functions supported.

T able 6: FC SCSI FCP response codes

Function name Response code

Function complet e 00 Function not supported 04 Function reject 05

36 Cheetah 36FC Product Manual, Rev. D

9.1.4 Fibre Channel port login

Table 7 identifies the required content of the N_Port Login (PLOGI) payload from an initiator.

T able 7: N_Port login (PLOGI) pa yload

Bytes

0-15 03 00 00 00 09 09 BB BB CF XX FS FS XX XX XX XX Common 16-31 XX XX XX XX PN PN PN PN PN PN PN PN NN NN NN NN 32-35 NN NN NN NN 36-47 XX XX XX XX XX XX XX XX XX XX XX XX Class 1 48-51 XX XX XX XX 52-63 XX XX XX XX XX XX XX XX XX XX XX XX Class 2 64-67 XX XX XX XX 68-79 SO SO IC IC XX XX FS F S XX CS XX XX Class 3 80-83 OS OS XX XX 84-95 XX XX XX XX XX XX XX XX XX XX XX XX Reserved 96-99 XX XX XX XX 100-111 XX XX XX XX XX XX XX XX XX XX XX XX Vendor 112-115 XX XX XX XX Version

X Indicates a four-bit (hex) field is not checked. x Indicate s a single bit is not checked. BB BB-Credit. Th is field is not checked. The FC-AL drive uses BB-Credit of zero (0). CF Common featur es. This binary field selects the common features request ed by the initiator login.

MSB Continuously increasing offset Must = 1

Random relative offset Not check ed. Port Login Accept wi ll return a 0—not suppor te d. Valid version level x N_Port/F_Port Must = 0, N_Port Alternate credi t model Must = 1 Other bits reserved xxx XX

FS Receive buffer field s ize. The FS field in the common and Class 3 parameters is checked for the range 128 < FS < 2,112 and a

mult iple of four by tes. For multiple fr ame sequences, all fra m es but the last frame of the sequence must be this size. Only the receive buffer field size in the Class 3 parameters is used.

PN Port name (initiator’s)—sav ed with the lo gi n pa ra met e rs. If a chang e of th e port na me/A L_ PA address as soc ia t ion is det ec te d dur -

ing a Port DISCovery, and implicit log out occurs and the i nitiator returns a LS_RJT. NN Node name. The node name is not checked or saved by the drive. SO Service options Class 3 only.

MSB Class va lid Must = 1

Intermix x Stacked connect ion req. xx Sequential delivery x Other bits reserved xxx XX

IC Initiator control

MSB XID reassign xx

Proc Assc 10 or 11 causes the login to be rejected. Other values are accepted.

Other bits XXX CS Concurrent sequences Must be a valu e greater than 0. OS Open sequences per exchange Must be a value greater than 0.

Cheetah 36FC Product Manual, Rev. D 37

9.1.5 Fibre Channel port login accept

Table 8 identifies the N_Port Login access payload values.

Table 8: N_Port Login Accept (ACC) payload

Bytes

0-15 02 00 00 00 09 09 00 00 88 00 FS FS 00 FF 00 01 Common 16-31 00 00 01 F4 20 PP 00 20 37 UI UI UI 20 00 00 20 32-35 37 UI UI UI 36- 47 00 00 00 00 00 00 00 00 00 00 00 00 Clas s 1 48-51 00 00 00 00 52- 63 00 00 00 00 00 00 00 00 00 00 00 00 Clas s 2 64-67 00 00 00 00 68- 79 80 00 00 00 00 00 FS FS 00 FF 00 00 Clas s 3 80-83 00 01 00 00 84-95 00 00 00 00 00 00 00 00 00 00 00 00 Reserved 96-99 00 00 00 00 100-111 00 00 00 00 00 00 00 00 00 00 00 00 Vendor 112-115 00 00 00 00 Version

FS Rec eive buf fer field size. The drive returns and uses the rece ive buffer size from the N_Port Login Class 3 re ceive

buffer.

UI Unique identifier. This 24-bit fiel d is uniquely assigned to the drive. This same UI appea rs i n the Port Name and

Node Name fields.

PP Port identifier field.

01 P_LOGI received on Port A. 02 P_LOGI received on Port B.

9.1.6 Fibre Channel Process Login

Table 9 lists the process login payload data.

Table 9: Process Login (PLRI) payload

Bytes

0-15 20 10 00 14 08 00 20 00 XX XX XX XX XX XX XX XX 16-19 00 00 00 22

XX Indicates fields that are not used.

9.1.7 Fibre Channel Process Login Accept

Table 10 lists ST136403FC/FC V process login accept payload data.

Table 10: Process Login Accept (ACC) payload

Bytes

0-15 02 10 00 14 08 00 21 00 00 00 00 00 00 00 00 00 16-31 00 00 00 12

38 Cheetah 36FC Product Manual, Rev. D

9.1.8 Fibre Chan nel fa bric lo gin

Table 11 lists the fabric login payload from the drive.

T able 11: Fabric Login (FLOGI) payload

Bytes

0-15 04 00 00 00 09 09 00 00 08 00 08 40 00 00 00 00 Common 16-31 00 00 02 F4 20 PP 00 20 37 UI UI UI 02 00 00 20 32-35 37 UI UI UI 36-47 00 00 00 00 00 00 00 00 00 00 00 00 Class 1 48-51 00 00 00 00 52-63 00 00 00 00 00 00 00 00 00 00 00 00 Class 2 64-67 00 00 00 00 68-79 80 00 00 00 00 00 08 40 00 00 00 00 Class 3 80-83 00 00 00 00 84-95 00 00 00 00 00 00 00 00 00 00 00 00 Reserved 96-99 00 00 00 00 100-111 00 00 00 00 00 00 00 00 00 00 00 00 Vendor 112-115 00 00 00 00 Version

UI Unique identifier. This 24-bit field is uniquely assigned to the drive. This same UI appears in the Port Name and Node Name

fields.

PP Port identifier field.

01 FLOGI originated on Port A. 02 FLOGI originated on Port B.

Cheetah 36FC Product Manual, Rev. D 39

9.1.9 Fibre Channel fabric accept login

Table 11 lists the required content of the Fabric Login Accept (ACC) payload from the fabric.

Table 12: Fabric Login Accept (ACC) payload

Bytes

0-15 02 00 00 00 09 09 BB BB CF XX FS FS R_ A_ T0 V_ Comm on 16-31 E_ D_ T0 V_ PN PN PN PN PN PN PN PN NN NN NN NN 32-35 NN NN NN NN 36-47 XX XX XX XX XX XX XX XX XX XX XX XX Class 1 48-51 XX XX XX XX 52-63 XX XX XX XX XX XX XX XX XX XX XX XX Class 2 64-67 XX XX XX XX 68-79 SO SO xx xx XX XX FS FS XX xx XX XX Class 3 80-83 OS OS XX XX 84-95 XX XX XX XX XX XX XX XX XX XX XX XX Reserved 96-99 XX XX XX XX 100-111 XX XX XX XX XX XX XX XX XX XX XX XX Vendor 112-115 XX XX XX XX Version

X Indicates a four-bit (hex) field is not checked. x Indicates a single bit is not checked. BB BB-Credit. This field is not checked. The FC-AL drive uses BB-Credit of zero (0). CF Common features. This binary field selects the common features requested by the fabric login.

MSB Continuously increasing offset x

Random relative offset x Valid version level x N_Port/F_Port Must = 1, F_Port Alternate credit model Must = 1 Other bits reserved xxx XX

FS Receive buffer field size. The FS field in the co mmon and Class 3 par ameters is checked for the range 128 < FS < 2,112 and a

multiple of four bytes. The receive buffer field size in the Class 3 parameters is used. The drive uses the lower FS of Fabric Login Accep t or N_Port Login when sending frames to an initiator.

PN Port Name. The fabric port name is saved with the login parameters. If a change of the port name is detected during a FAN, an

implicit logout occurs and a LS_RJT is returned to the fabric. NN Node Name. The drive does not check or save the node name. SO Service Options—Class 3 only.

MSB Class valid Must = 1

Intermix x Stacked connection req. xx Sequential delivery Must = 1 Other bits reserved xxx XX

40 Cheetah 36FC Product Manual, Rev. D

9.1.10 Fi bre Channe l Arbitrated Loop options

Table 13 lists the FC-AL options supported by Cheetah 36FC drives.

T able 13: FC-AL options supported

Option Support ed

OPEN Half Duplex Accepted from another device. OPEN Full Duplex Sent to open another device.

Accepted from another device. Private Loop Yes Public Loop Yes Old Port State No Loop Posi tion Yes Loop Position Report Yes

9.2 Dual port suppor t

ST136403FC/FCV drives have two independent FC-AL ports. These ports may be connected on independent loops or on the same loop. Port A and Port B may be connected in any order or combination.

• If both ports are connected on independent loops and hard addressing is used, the drive interface address is selected through the interface connector, both ports will seek the same loop address. If no conflict, both por ts w ill h ave the sam e loo p address.

• If both ports are connect ed in the same loo p and hard addressing is used, at least one port will attempt taking a soft address to prevent an address conflict.

Note.

When a ST136403FC/FCV dr ive is connected in loops with previous Seagate FC drive products: Barracuda 4LP FC (ST32171FC, ST34371FC, and ST34571FC)

Barracuda 9FC (ST19171FC) Cheetah 4LP FC (ST34501FC) Cheetah 9FC (ST19101FC)

the connection of Port A and B for these products must follow the requirements in their prod uc t manuals.

Subject to buffer availability, the Che etah 36FC drives support:

• Concurrent port transfers—The dr ive suppor ts receiving transfers on both por ts at the same time wh en the ports are on independent loops.

• Full duplex—The drive suppor ts sending FCP_Data, FCP_RSP, FCP_XFR_RDY and ELS transfers while receiving frames on both ports.

Cheetah 36FC Product Manual, Rev. D 41

9.3 SCSI commands supported

Table 14 lists the SCSI commands that ST136403FC/FCV drives support.

Table 14: Supported commands

Command code Supported [4] Command name

00h Y Test unit ready 01h Y Rezero unit 03h Y Request sense

Y Extended sense Y Field pointer bytes

Y Actual retry count bytes 04h Y Format unit [1] 07h Y Reassign b locks 08h Y Read 0Ah Y Write 0Bh Y Seek 12h Y Inquiry

Y Vital product data page

Y Unit serial number page

Y Implemented operating def. page

Y Firmware numbers page

Y Date code page

Y Jumper settings page 15h Y Mode select (same pages as M ode Sense command shown below) [3] 16h Y Reserve

N 3rd party reserved

N Extent reservation 17h Y Release 18h N Copy 1Ah Y Mode sense

Y Unit attention page (00h)

Y Error recovery page (01h)

Y Disconnect/reconnect control (page 02h)

Y Format page (03h)

Y Rigid disc drive geometry page (04h)

Y Verify error recovery page (07h)

Y Caching parameters page (08h)

Y Control mode page (0Ah)

Y Power control page (1Ah)

Y Information exceptions control page (1Ch) 1Bh Y Start unit/stop unit 1Ch Y Receive diagnostic results

Y Supported diagnostics pages

Y Translate page

Y Enclosure services page 1Dh Y Send diagnostics page

42 Cheetah 36FC Product Manual, Rev. D

Table 14: Supported commands

Command code Supported [4] Command name

25h Y Read capacity 28h Y Read extended

2Ah Y Write extende d

2Bh Y Seek extended 2Eh Y Write and verify

2Fh Y Verify

30h N Search data high 31h N Search data equal 32h N Search data low 33h N Set limits 34h N Prefetch 35h Y Synchronize cache 36h N Lock-unlock-cache 37h Y Read defect data 39h N Compare 3Ah N Copy and verify 3Bh Y Write buffer

3Ch Y Read buffer

3Eh Y Read long 3Fh Y Write long

(continued)

Y Supported diagnostics pages Y Translate page

Y Disable page out Y Force unit access N Relative address

Y Disable page out Y Byte check N Relative address

Y Write combined header and data mode (0) Y Write data mode (2) N Download microcode mode (4) Y Download microcode and save modes (5) N Download microcode with off sets mode (6) Y Download microcode with offsets and save mode (7) Y Firmware download option [2]

Y Read combined header and data mode (0) Y Read data mode (2) Y Read descriptor mode (3)

Cheetah 36FC Product Manual, Rev. D 43

Table 14: Supported commands

Command code Supported [4] Command name

40h N Change definition 41h Y Write same

42-4Bh N Not used 4Ch Y Log Select 4Dh Y Log Sense 4E-4Fh N Not used 50h A XD write 51h A XP write 52h A XD read 53-54h N Not used 55h Y Mode Select (10) [3] 56h Y Reserved (10)

57h Y Released (10) 58-59h N Not used 5Ah Y Mode Sense (10) [3] 5B-5Dh N Not used 5E A Persistent re serve in 5F A Persistent reserve out 60-7Fh N Not used 80h A XD write ext ended 81h A Rebuild 82h A Regenerate 83-8Fh N Not used C0-DFh N Not used EO-FFh N Not used

(continued)

N PBdata

NLBdata

Y 3rd party reserve

N Extent reservation

[1] Cheetah 36FC drives can format to any multiple of four bytes per logical block in the range 512 to 4,096

bytes.

Warning.

[2]

Power loss during flash programming can result in firmware corruption. This usually makes the

drive inoperable. [3] Reference Mode Sense command 1Ah for mode pages supported. [4] Y = Yes. Command is supported.

N = No. Command is not supported.

A = Support is available on special request.

44 Cheetah 36FC Product Manual, Rev. D

9.3.1 Inquiry data

Table 15 lists the Inquir y comma nd data that the dr ive should return to the initiator per the forma t given in the Fibre Channel Interface Manual.

Table 1 5:

Bytes Data (hex)

0-15 00 00 ** 22 8B 00 PP 0A 53 45 41 47 41 54 45 20 Vendor ID 16-31 [53 54 31 33 36 34 30 33 46 43 20] 20 20 20 20 20 Product ID 32-47 R# R# R# R# S# S# S# S# S# S# S# S# 00 00 00 00 48-63 00000000000000000000000000000000 64-79 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 80-95 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 96-111 00 43 6F 70 79 72 69 67 68 74 20 28 63 29 20 31* *Copyright 112-127 39* 39* 39* 20 53 65 61 67 61 74 65 20 41 6C 6C 20 notice 128-143 72 69 67 68 74 73 20 72 65 73 65 72 76 65 64 20

* Copyright year (changes with actual year). ** 02 = SCSI-2 implemented with some SCSI-3 features (default).

PP 50 = Inquiry data fo r an Inq uiry command received on Port A.

70 = Inquiry data for an Inq uiry command received on Port B. R# Four ASCII digits repre senting the last four digits of the product firmwa re re lease number. S# Eight ASCII digits representing the eight digits of the product serial number. [ ] Bytes 16 through 26 reflect drive model.

Cheetah 36FC

inquiry data

9.3.2 Mode Sense data

The Mode Sense com man d provides a way for the drive to report its o perating param ete rs to the initiator. The drive maintains four sets of mode parameters:

1. Default values

Default values are hard-coded in the drive firmware stored in flash E-PROM (nonvolatile memory) on the drive’s PCB. These default values can be changed only by downloading a complete set o f new firmware into the flash E-PROM. An initiator can request and recei ve from the drive a list of default values and use those in a Mode Sele ct command to s et up new current and saved values, where the values are changeable.

2. Saved values

Saved values are stored on the drive’s media using a Mode Select command. Only parameter values that are allowed to be changed can be changed by this method. Parameters in the saved values list that are not changeable by the Mode Select command get their values from default values storage.

When power is applied to the drive, it takes saved values from the media and stores them as current values in volatile memory. It is not possible to change the current values (or the saved values) with a Mode Select command before the drive achieves operating speed and is “ready.” An attempt to do so results in a “Check Condition” status.

On drives requiring unique saved values, the required unique saved values are stored into the saved values storage location on the m edia p rior to s hi pping the dri ve. Some drives may have unique firmware with unique default values also.

On standard OEM dr ives, the saved values are taken from the default values list and stored into the saved values storage location on the media prior to shipping.

3. Current values

Current values are volatile val ues being used by the drive to control its operation. A Mode Select command can be used to chan ge the values iden tified as chang eable values. Originally, current values are installed from saved or default values after a power on reset, hard reset, or Bus Device Reset message.

Cheetah 36FC Product Manual, Rev. D 45

4. Changeable values Changeable values form a bit mask, stored in nonvolatile memory, that dictates which of the current values

and saved values can be changed by a Mode Select command. A one (1) indicates the value can be changed. A zero (0) indicates the value is not changeable. For example, in Table 16, refer to Mode page 81, in the row entitled “CHG.” These are hex numbers representing t he changeable values for Mode page

81. Note in columns 5 and 6 (bytes 04 and 05), there is 00h which indicates that in bytes 04 and 05 none of the bits are changea ble. Note also that bytes 06, 07, 09 , 10, and 11 a re not chan geable, because those fields are all zeros. In byte 02, hex value FF equates to the binary pattern 11111111. If there is a zero in any bit position in the field, it means that bit is not changeable. Since all of the bits in byte 02 are ones, all of these bits are changeable.

The changeable values list can only be changed by downloading new firmware into the flash E-PROM.

Note.

Because there are often several different versions of drive control firmware in the total population of drives in the field, the Mode Sense values given in the following tables may not exactly match those of some drives.

The following tables list the values of the data bytes returned by the drive in response to the Mode Sense command pages for SCSI implementation (see the Fibre Channel Interface Manual).

Definitions: DEF = Default value. Standard OEM drives are shipped configured this way. CHG = Changeable bits; indicates if default value is changeable.

46 Cheetah 36FC Product Manual, Rev. D

T able 16: Mode Sense data default and cha ngeable values for ST136403FC/FCV drives

ST136403FC/FCV Bytes

Mode Sense Header

DEF

CHG 81 0A FF FF 00 00 00 00 FF 00 FF FF

DEF 82 0E 80 80 00 00 00 00 00 00 01 A3 00 00 00 00

CHG 82 0E FF FF 00 00 00 00 00 00 FF FF 00 00 00 00

DEF 83 16 02 A5 00 00 00 04 00 00 01 2F 02 00 00 01 00 2C 00 38 40 00 00 00

CHG

DEF 84 16 00 26 2C 18 00 00 00 00 00 00 00 00 00 00 00 00 00 00 27 20 00 00

CHG

DEF 87 0A 00 0B E8 00 00 00 00 00 FF FF

CHG 87 0A 0F FF 00 00 00 00 00 00 FF FF

00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23

A7 00 10 08 04 3D 67 20 00 00 02 00

<------------------------------ -- -- -------------- M o de se n s e pa ge s data ------------- -- -- ------------------------------->

81 0A C0 0B E8 00 00 00 05 00 FF FF

83 16 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

84 16 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

DEF 88 12 14 00 FF FF 00 00 FF FF FF FF 80 03 00 00 00 00 00 00

CHG 88 12 B5 00 00 00 FF FF FF FF 00 00 A0 FF 00 00 00 00 00 00

DEF 8A 0A 02 00 00 00 00 00 00 00 00 00

CHG 8A 0A 03 F1 08 00 00 00 00 00 00 00

DEF 99 06 00 00 00 00 00 00

CHG 99 06 00 FF 01 00 00 00

DEF 9A 0A 00 03 00 00 00 01 00 00 00 04

CHG 9A 0A 00 03 00 00 00 00 00 00 00 00

DEF 9C 0A 00 00 00 00 00 00 00 00 00 01

CHG 9C 0A 8D 0F FF FF FF FF FF FF FF FF

DEF 80 02 00 00

CHG 80 02 37 40

<--- Read capacity data --->

04 3D 67 1F 00 00 02 00

Cheetah 36FC Product Manual, Rev. D 47

9.4 Miscellaneous operating features and conditions

Table 17 lists various features and conditions. A “Y” in the support column indicates the feature or condition is supported . An “N” in the support column indicates the feature or condition is not supported.

Table 17: Miscellaneous features

Supported Feature or condition

Y FC-AL selective reset Y Automatic contingent allegiance N Asynchronous event notification N Synchronized (locked) spi ndle operation Y Segmented caching N Zero latency read Y Queue tagging (up to 128 queue tags supported) Y Deferred error handl ing Y Parameter round ing (controlled by Round bit in Mode Select page 0) Y Reporting actual retry count in Extended Sense bytes 15, 16, and 17 N Adaptive caching Y SMP = 1 in Mode Select command needed to save RPL and rot ational offset bytes

Table 18: Miscellaneous status

Supported Status

Y Good Y Check condition Y Condition met/good YBusy Y Intermediate/good Y Intermediate/condition met/good Y Reservation conflict Y T ask set full Y ACA active Y ACA active, faulted initiator

48 Cheetah 36FC Product Manual, Rev. D

9.5 FC-AL physical interface

Figure 12 shows the location of the J1 Fibre Channel single conn ec tion attachm ent (FC-S CA) a nd the J 6 connector. Figure 14 provides the dimensions of the FC-SCA. Figure 15 provides the dimensions of the J6 connector.

Details of the physical, electrical, an d logical character istics are provided within this section. The op erational aspects of Seagate’s Fibre Channel drives are provided in the Fibre Channel Interface Manual..

Figure 12. Physical interface

9.5.1 Physical characteristics

This section defines physical interface connector.

9.5.1.1 P hysical descriptio n

FIbre Channel drives may be connected in a loop together or with other compatible FC-AL devices. A maximum of 127 devices may have addresses; however, one of the addresses is reserved for a fabric port switch device. This means 126 addresses are available for FC-AL devices. More FC-AL compatible devices may physically reside on the loop, but they will not be functional because they would not be able to obtain valid addresses.

Port bypass circuits (PBCs) allow devices to be insert ed into unpop ulated locations or removed from the loop with loop operation recovery after a brief interruption. These P BCs are located external to the FC-AL device. Figure 13 shows the relationship between the PBC and FC-AL device.

Port Bypass

Circuit

From Previous

Port Bypass

Circuit N–1

Drive

MUX

To Next

Drive

Port Bypass

Circuit N+1

Drive N–1

Figure 13. Port b ypass circuit physical interconnect

SerialInSerial

Select

Drive N

Out

Drive N+1

Cheetah 36FC Product Manual, Rev. D 49

9.5.2 Connector requirements

Recommended mating SCA part number:

Part description Positions Part number Features

AMP Vertical (SCA sequence) 40 787317-1 Berg 40 71781 Methode 40 512-220-91-101N Molex 40 717431040

With polarization With polarization With polarization With polarization

The FC-AL SCA device connector is illustrated in Figure 14. The J6 connector is illustrated in Figure 15.

1.618 ± .003 in

(41.1 ± 0.08 mm)

Pin 20

Pin 40

.64 in

(16.24 mm)

1.28 in

(32.47 mm)

1.618 ± .003 in

(41.10 ± 0.08 mm)

1.492 ± .009 in

(37.90 ± 0.24 mm)

Mating end Housing

Pin 1

Pin 21

0.264+.007 in –.010 in

(6.71+0.18 mm)

(–0.25 mm)

0.197 ± .003 in

(5.00 ± .08 mm)

0.226 in

(6.50 mm)

2 places

min.

0.394 ± .004 in

(10.0 ± 0.10 mm)

0.039 in

(0.75 mm)

min.

0.024 in

(0.60 mm)

0.079 ± .010 in (2.00 ± .25 mm)

(initial point

of contact)

min.

.05 in

(1.27 mm)

typ.

Contact (typ.)

.025 in (0.635 mm)

Figure 14. FC-AL SCA device connector dimensions

.079 (2 mm)

.079

(2 mm)

(17.983 mm)

Figure 15. J6 connector dimensions

.787

(19.99 mm)

.708

0.106 ± .010 in

(2.70 ± 0.25 mm)

0.060 ± .010 in

(1.52 ± 0.25 mm)

0.051 ± .006 in

(1.30 ± 0.16 mm)

2 places

50 Cheetah 36FC Product Manual, Rev. D

9.5.3 Electrical description

Fibre Channel drives use the FC-SCA connector for:

• DC power

• FC-AL interface

• Drive select (device identification)

• Option selection

• Enclosure Services interface

This 40-pin connector is designed to plug directly into a backpanel. External cables are not required.

9.5.4 Pin descriptions

This section provides a pin-out of the FC-SCA and a description of the functions provided by the pins.

Table 19: FC-SCA pin descriptions

Pin Signal name Signal type Pin Signal name Signal type

1* -EN bypass port A T TL outp ut 21 12 Volts charge 2* 12 Volts 22 Ground 3* 12 Volts 23 Ground 4* 12 Volts 24* +Port A_in Diff. PECL input pair 5* -Parallel ESI 25* -Port A_in 6* Ground 7* Active LED out Open co llector ou t 27* +Port B_in Diff. PECL input pair 8* Reserved 28* - Port B_in 9* Start_1 TTL input 29 Ground 10* Start_2 TTL input 30* +Port A_out Diff PECL output pair 11* -EN bypass port B TTL ou tput 31* -Port A_out 12* SEL_6 TTL input/output 32 Ground 13* SEL_5 TTL input/output 33* +P ort B_out Diff PECL output pair 14* SEL_4 TTL input 34* -Port B_out 15* SEL_3 TTL input/output 35 Ground 16* Fault LED out Open collector out 36 SEL_2 TTL input/output 17* Reserved NC 37 SEL_1 TTL input/output 18* Reserved NC 38 SEL_0 TTL input/outp ut 19* 5 Volts 39 Reserved NC 20* 5 Volts 40 5 Volts charge

[1]

26 Ground

*Short pins in mating backpanel connect or. [1] This pin may be connected to external logic to detect the presence of the dri ve. The drive connects this

pin to the common ground.

Cheetah 36FC Product Manual, Rev. D 51

9.5.5 FC-AL transmitters and receivers

A typical FC-AL differential copper transmitter and receiver pair is shown in Figure 16. The receiver is required to provide the AC coupling to eliminate ground shift noise.

Transmitter

150

Figure 16. FC-AL transmitters and receivers

150

Differential

Transfer Medium

.01µf

150

.01µf

Receiver

9.5.6 Power

Power is supplied through the FC-S CA with support for +5 volts and +12 volts. All of the voltage pins in the drive connector are the same length.

Four 12 volt pins provide +12 volt power to t he drive. The current return for the +12 volt power supply is through the common ground pins. The sup ply current and return current must be distributed as evenly as possible among the pins. The maximum current typically occurs while the drive motor is starting.

Three 5 volt pins provide logic power to the drive. The current return for the +5 volt power supply is through the common ground pins. Distribute supply and return current as evenly as possible am ong the v ol tage and g round pins.

The mating connector pins use shorter contacts to achieve power surge reductions and to aid in “hot plugging” the drives. There are longer voltage contacts in the connector to enable the drive filter capacitors to charge. Current to the drive through the long charge pins is limited by the system in which the drive operates. Three of the +12 volt pins are shorter to allow capacitive pre-charging through the longer +12 volt charge pin. Two of the +5 volt pins are shorter to allow capacitive precharging through the longer +5 volt charge pin.

9.5.7 Fault LED Out

The Fault LED Out signal is driven by the drive when:

• the drive detects failure of both ports

• the drive detects an internal failure

• the drive receives the appropriate fault LED command from the host

The Fault LED Out signal is designed to pull down the cathode of an LED. The anode is attached to the proper +5 volt supply through an appropr iate current-limiting resistor. The LED and the current-limiting resistor are external to the drive.

9.5.8 Active LED Out

The Active LED Out signal is driven by the drive as indicated in Table 20.

Table 20: Active LED Out conditions

Normal command activity LED status

Spun down and no activity Slow blink (20% on and 80% off a 2 sec cycle) Spun down and activity (command executing) On Spun up and no activity On Spun up and activity (comm and executing) Off Spinning up or down Blinks steadily (50% on and 50% off) Format in progress, each cylinder change Toggles on/off

52 Cheetah 36FC Product Manual, Rev. D

The Active LED Out signal is designed to pull down the cathode of an LED. The anode is attached to the proper +5 volt supply through an appropriate current limiting resistor. The LED and the current limiting resistor are external to the drive.

9.5.9 Enable port bypass signals

The – Enable Bypass Port A (– EN BYP Port A) and – Enable Bypass Port B (– EN BYP Port B) signals control the port bypass circuits (PBC) located external to the disc drive. The PBC allows a loop to remain functional in the event of a drive failure or removal. When these signals are active, low, the PBC bypasses the drive on the associated por t. When an Enable Bypass signal is active, the corresponding Port Bypass LED signal i n connector J1 is driven low by the disc drive. A pull down resistor, 1K, located with the PBC should be us ed to insure the bypass is enabled if the disc drive is not installed.

The Enable Bypass signal is active under failing conditions within the drive, on detection of the Loop Port Bypass primitive sequence, or on removal of the drive. In the bypass state the drive continues to receive on the inbound fibre. Enable Bypass may be deactivated by detection of a Loop Port Enable primitive sequence if the drive has completed self-test and a hardware failure is not present.

Failure modes detected by the disc drive that will enable bypass include:

• Transmitter/receiver wrap test failure

• Loss of receive clock

• Loss of transmission clock

• Drive interface hardware error

9.5.10 Motor start controls

The dr ive’s motor is started according to the St art_1 and Star t_2 signals descr ibed in Table 21. The state of these signals can be wired into the backplane socket or driven by logic on the backplane.

T able 21: Motor start control si gnals

Case Start_2 Start_1 Motor spin function

1 Low Low Motor spins up at DC power on. 2 High Low Motor spins up only when SCSI Start command is received. 3 Low High Moto r spins up after a del ay of 12 seconds times the modulo 8 value of

the nu m eric SEL ID of the drive from DC power on .

4 High High The drive will not spin up.

9.5.11 SEL_6 through SEL_0 ID lines

The SEL_6 through SEL_0 ID lines d etermine drive address, and, o ptionally, for an Enclosure Service s Interface. When the Parallel ESI line is high, the enclosure backpanel must provide address information on the SEL line. Refer to table 22 for a mapping of SEL to FC-AL physical addresses (AL_PA). You can think of the SEL lines as the equivalent of a backpanel logic plug. The drives does not provide pull up resistors on these l ines. The backpanel is required to provide high and low inputs to the SEL_ID lines per the s pecificat ions i n ta ble 23 on page 55.

Note.

Table 22 gives AL_PA values for each SEL value. The first entry in the table is SEL_ID 00. The last entry is SEL_ID 7D . SEL_ID 7E is AL_PA 00 which is not valid for an NL_Port, so is not included in the table. Also, SEL_ID 7Fh does map to a valid AL_PA; however, this value signals the drive that physical addresses are not being assigned using the SEL lines and that a “soft” address will be determined by FC-AL loop initialization.

When the Parallel ESI line is low, the enclosure backpanel logic switches to E S I m ode i f su pported. There are two modes of ESI, seven bits of enclosure status and a bidirectional mode. ESI sup port and the mode are determined by the dr ive using a disc overy proces s. Refer to the F ibre Channel Interface Manual for a description of ESI operation.

Cheetah 36FC Product Manual, Rev. D 53

9.5.11.1 P arallel Enclosure Services Interface (ESI)

The parallel ESI line is an output from the drive. This line provides the enclosure wi th an indication of the present function of the SE L lines. A high level, the default state, indicates the drive requires address information on the SEL lines. A low level indicates the drive is attempting an ESI transfer. The enclosure may not support ESI on any or all drive locations. It may only support the address function. Support of ESI is discovered by the drive. Refer to the Fibre Channel Interface Manual for a description of ESI operations.

54 Cheetah 36FC Product Manual, Rev. D

Table 22: Arbitrated loop physical address (AL_PA) values

AL_PA (hex)

EF 00 00 A3 2B 43 4D 56 86 E8 01 01 9F 2C 44 4C 57 87 E4 02 02 9E 2D 45 4B 58 88 E2 03 03 9D 2E 46 4A 59 89 E1 04 04 9B 2F 47 49 5A 90 E0 05 05 98 30 48 47 5B 91 DC 06 06 97 31 49 46 5C 92 DA 07 07 90 32 50 45 5D 93 D9 08 08 8F 33 51 43 5E 94 D6 09 09 88 34 52 3c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

SEL ID (hex)

Setting (dec)

AL_PA (hex)

SEL ID (hex)

Setting (dec)

AL_PA (hex)

SEL ID (hex)

Setting (dec)

Cheetah 36FC Product Manual, Rev. D 55

9.6 Signal characteristics

This section describes the el ec trical signal characteristics of the dr ive’s input and output signals. See Table 19 on page 50 for signal type and signal name information.

9.6.1 TTL input characteristics

Table 23 provides the TTL characteristics.

Table 23: TTL character istic s

State Voltage Current

Input high 1.9 < V Input low -0.5V < V Output high (-EN Bypass A, B) 2.4 < V Output low (-EN Bypass A, B) V Output high (-Parallel ESI) 2.4 < V

VOH > 0.9V Output low (-Parallel ESI) 0 < V Output high (all other outputs) 2.4 < V

VOH > 0.9V Output low (all othe r out puts) 0 < V

< 5.5V IIH = ±500nA max.

< 0.9V IOL = ±500nA max.

< 5.25V IOH < -3mA

< 0.5V IOL < 3mA

< 0.9 V

< .45V IOL < 2.4mA

< 0.9 V

< .45V IOL < 1.6mA

IOH < -2.4mA

< -500µA

IOH < -1.6mA I

< -500µA

9.6.2 LED driver signals

Fault and Active LED signals are located in the FC-SCA connector (J1) and through the indicator connector (J6). See Table 24 for the output characteristics of the LED drive signals.

T able 24: LED drive signal

State Current drive a vailable Out put voltage

LED off, high 0 < I LED on, low I

< 100µA

< -30 mA 0 < VOL < 0.8V

9.6. 3 Diffe renti al PECL ou t put

The serial PECL output signal voltage characteristics are provided in Table 25. The outputs are not AC coupled in order to deliver maximum signal without rise and fall time degradation. You must AC couple the receiver to isolate potentially different DC characteristics of the outputs and the receiver.

Table 25: Differential PECL output characteristics

Description Parameter Notes

Serial output vol tage swing 300 < V

< 650 mV Centered at 1.32V

out

56 Cheetah 36FC Product Manual, Rev. D

Figure 17 provides the data output valid eye diagram relative to the bit cell time.

941 ps

Vout (mv)

800 ps

Figure 17. T ransmit eye dia gram

9.6. 4 Diffe renti al PECL input

The serial PECL input signal voltage characteristics are provided in Table 26.

Table 26: Differential PECL input characteristics

Description Parameter Notes

Serial input vol tage swing 200 < V

< 1.300 mV AC coupled

Figure 18 provides the data valid eye diagram for typical and minimum requirements to recover data at the specified interface error rate. The inputs are AC coupled on the drive.

941 ps

Vin (mv)

659 ps 376 ps

Figure 18. Receive eye diagram

Typical Minimum

Cheetah 36FC Product Manual, Rev. D 57

10.0 Seagate Technology support serv ices Online Services

Internet

For online inf ormation about Seagate products, visit www .seagate.com or e-mail y our disc or t ape questions to:

Presales Support:

Disc: http://www.seagate.com/support/em ail/em ail_p resa les.html or DiscPresales@S eagate.com Tape: http://www.seagate.com/support/email/email_tape_presales.html or

Tape_Sales_Support@Seagate.com

Technical Sup por t :

Disc: http://www.seagate.com/support/em ail/em ail_d isc _su pport.html or DiscSupport@Seagate.com Tape: http://www.seagate.com/support/email/email_tape_support.html or Tape Sup por t @S eagate.com

is a computer bulletin board system that contains information about Seagate disc and tape dr ive

SeaBOARD

products and is availabl e 24 hours daily. Set your communications software to eight data bits, no parity and one stop b i t (8 -N-1 ).

Automated Services

SeaFONE® (1-800-SEAGATE)

help services. U sing a touch-tone phone, you can find answers to service phone numbers, comm only asked questions, troubleshooting tips and specifications for disc drives and tape drives 24 hours daily. International callers can reach this service by dialing +1-405-936-1234.

SeaFAX

support information by return FAX 24 hours daily. This service is available worldwide.

is Seagate's automated FAX delivery system. Using a touch-tone phone, you can obtain technical

is Seagate's toll-free number (1-800-732-4283) to a ccess our automated s elf-

Presales Support

Our Presales Suppo rt staff c an help you deter mine which S eagate products are best suited for your specific application or computer system. Di sc: 1-877-271-3285; Tape: 1-800-626-6637.

Online Tape Purchases

US customers can purchase Seagate data cartridges, tape supplies, accessories, and select Seaga te tape drive products 24 hours daily at http://buytape.seagate.com.

Technical Support

If you need help installing your drive, consult your dealer. Dealers are familiar with their unique system configurations and can help you with system conflicts and other t echnical issues. If you need additional help, you can talk to a Seag ate technical suppo rt specialist. Before calling, note your system configuration and dr ive model number (ST####).

SeaTDD™(+1-405-936-1687)

comments 24 hours dai ly and exchange messages with a t echnical su pport specialist from 8:00 A.M. to 12:15 P.M. and 1:30 P.M. to 6:00 P. M. (central time) Monday through Friday.

is a telecommunications device for the deaf (TDD). You can send q uestions or

Customer Service (CSO)

Warranty Serv ic e

Seagate offers worldwide customer support for Seagate drives. Seagate direct OEM, Distribution and System Integrator customers should contact their Seagate service center representative for warranty information. Other customers should contact their place of purchase.

58 Cheetah 36FC Product Manual, Rev. D

Authorized Service Centers

If you live outside the US, you can contact an Authorized Service Center for service.

USA/Canada/Latin America Support Services

Presales Support

Disc: 1-877-271-3285 or +1-405-936-1210 FAX: +1-405-936-1683 Tape: 1-800-626-6637 or +1-714-641-2500 FAX: +1-714-641-2410

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1-800-SEAGATE or +1-405-936-1234 (for specific product phone number) FAX: Disc: +1-405-936-1685; Tape: +1-405-936-1683

SeaFAX SeaTDD SeaBOARD

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Memofix Adtech* +1-905-812-8099 or 1-800-624-9857 FAX: +1-905-812-7807

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MA Informatica +55-21-516-6649 FAX: +55-21-223-3156

+1-905-660-4936 or 1-800-636-6349 FAX: +1-905-660-4951

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e-mail: sgt_cso@gbl.com.br

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For European customer support, dial the toll-free number for your specific country for presales support, technical support, SeaFAX and warranty service.

A.M

If your country is not listed here, dial our European call center at +31-20-316-7222 from 8:30 (European central time) Monday through Friday. The European call center is located in Amsterdam , The Net herlands.

. to 5:00 P.M.

Call Center

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1.Authorized Service Centers

Cheetah 36FC Product Manual, Rev. D 59

Turkey 00 800-31 92 91 40 United Kingdom 0 800-783 5177

SeaBOARD

Germany +49-89-1409331

Fax Services—All European Countries

Presales/Technical Support/Warranty Service 31-20-653-3513

Africa/Middle East Support Services

For presales, technical suppor t, warranty service a nd FAX ser vices in Africa and the Middle East , dial our European call center at +31-20-316-7222 from 8:30 a.m. to 5:00 p.m. (European central time) Monday through Friday, or send a FAX to +31-20-653-3513 . The European call center is located in Amsterdam, The Netherlands.

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Australia +61-2-9725-33 66 FAX: +61-2-9725-4052 Hong Kong +852-2368 9918 FAX: +852-2368 7173 Japan — FAX: +81-3-5462-2979 Singapore + 65-488-7584 FAX: +65-488-7528 Taiwan +886-2-2514-2237 FAX: +886-2-2715-2923

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Warranty Serv ic e

Japan +81-3-5462-2904 FAX: +81-3-5462-2979 Asia/Pacific and Australia +65-485-3595 FAX: +65-488 -7 503

Cheetah 36FC Product Manual, Rev. D 61

Index

Numerics

12 volt

pins

51 3rd party reserve command 5 volt pins

Abort Sequence (ABTS) 35

36, 39

22, 32

47 47

abort task set function AC coupling AC power requirements ACA active status ACA active, faulted initiator status Accept (ACC) acoustics active LED Out signal Actual retry count bytes command actuator

assembly design adaptive caching Address Discovery (ADISC) addresses air cleanliness air flow

illustrated air inlet Alternate credit model altitude ambient ambient temperature ANSI documents

fibre channel

SCSI arbitrated loop physical address (AL_PA) arbitration asynchronous event notification audible noise automatic contingent allegiance autowrite and read reallocation

programmable average idle current average rotational latency

22, 32, 33

33 24

backpanel 50 backplane basic link service frames Basic_Accept (BA_ACC) Basic_Reject (BA_ RJT ) BB BB-Credit buffer

36, 39

data

space

busy status bypass circuit Byte check command bytes per surface bytes per track

cache operation 11 cache segments Caching parameters page (08h) command caching write data Canadian Department of Communications capacity

formatted

unformatted case temperature CF

36, 39 Change definition command character sync charge pins check condition status Class 3 parameters class B limit Class valid clear ACA function clear ta sk se t fu nctio n commands supported Common features Compare command Concurrent sequences condensation condition met/good status connector

illustrated

requirements continuous vibration Continuously increasing offset Control mode page (0Ah) command

error

cooling Copy and verify command Copy command CRC

CS Current profiles customer service cylinders/tracks per surface

7, 9

36, 39

data block size

modifing the data buffer to/from disc media data heads

read/write data rate

internal data transfer rate

62 Cheetah 36FC Product Manual, Rev. D

data valid eye 56

Date code page command DC power

defect and error management deferred error handling description device selection IDs devices differential PECL input dimensions Disable page out command disc rotation speed Disconnect/reconnect control (page 02h) command

Download microcode and save modes (5) Download microcode mode (4) Download microcode with offsets and save mode (7)

Download microcode with offsets mode (6) drive drive active LED connection drive characteristics drive fault LED connection drive ID drive ID/option select headers drive mounting drive orientation drive select driver signals drivers and receivers dual port support

requirements

27, 33

electrical

description of connector signal characteristics

specifications electromagnetic compatibility electromagnetic interference (EMI) electromagnetic susceptibility EMI

13 EMI requirements enable bypass

port A

port B

signal

state

15 Enclosure Services interface Enclosure services page command environment environmental

interference limits

requirements environmental control error

detection mechanisms, FC

management rates

error correction code

96-bit Reed-Solomon Error recovery page (01h) command extended link service

frames

reply frames Extended sense command Extent reservation command

fabric 39

1, 4

Fabric Address Notification (FAN)

38 38

Fabric Login (FLOGI) FAN

39 fault LED out signal FC-AL

31, 50

document interface options supported physical interface SCA device connector, illustrated

selective reset FCC rules and regulations FCP

for SCSI, document

response codes

task management functions FC-PH document features

interface Fibre Channel documents Fibre Channel Interface Manual Fibre Channel Services Field pointer bytes command firmware

corruption Firmware download option command Firmware numbers page command flawed sector reallocation FLOGI

received on Port A

received on Port B Force unit access command form fa ctor format Format command execution time Format page (03h) command Format unit command front panel FS function

36, 37, 39

complete, code 00

not supported, code 05

reject, code 04

Cheetah 36FC Product Manual, Rev. D 63

Good status 47 gradient ground shift noise grounding

23, 24

hard assigned arbitrated loop physical address

(AL_PA)

HDA

23, 32, 33, 34

temperature head and disc assembly (HDA) head and disc assembly. See HDA heads

read/write data heat removal heat source host equipment hot plugging the drive humidity humidity limits

IC 36

ID and configuration options Implemented operating def. page command Information exceptions control page (1Ch) command

41 Initiator contro l Inquiry command inquiry data installation

guide

interface

commands supported description error rate errors illustrated physical requirements

interleave

minimum intermediate/condition met/good status intermediate/good status Intermix internal data rate internal defects/errors internal drive characteristics

36, 39

J1 connector 31

31, 32

J6 connector Jumper settings page command jumpers

latency

6, 10 11

40 40

9, 10

43 43

average rotational LBdata LED driver signals Link Service Reject (LS_RJT) link services supported Lock-unlock-cache command Log select command Log sense command logic power logical block address logical block reallocation scheme logical block size logical segments Logout (LOGO) loop

loop position loop position report LS_RJT

LSI circuitry

48, 52 disruption initialization

FC-AL options FC-AL options

36, 39

maintenance 13

maximum delayed motor start

maximum start cur r en t mean time between failure (MTBF) media description media error rate

recoverable

minimum sector interl eave miscellaneous feature support

Adaptive caching Asynchronous event notification Automatic contingent allegiance Deferred error handling FC-AL selective reset Parameter rounding Queue tagging Reporting actual retry count Segmented caching SMP = 1 in Mode Select command Synchronized (locked) spindle operation Zero latency read

miscellaneous status support

ACA active ACA active, faulted initiator Busy Check condition Condition met/good Good Intermediate/condition met/good

47 47

64 Cheetah 36FC Product Manual, Rev. D

Intermediate/good 47

Reservation conflict

33 33

44, 46

Task set ful l miscorrected media data Mode select

(10) command

command Mode sense

(10) command

command

data, table monitoring state motor star t

controls

option mounting

mounting configuration mounting configuration dimensions MTBF

holes

orientations

13, 14, 22

defined

N_Port Login (PLOGI) 35

payload

payload values NN

36, 39 Node Name Node name noise

audible noise immunity non-operating

temperature non-operating vibration

24, 26

office environment 26 old port state

40 40 40

FC-AL options OPEN Full Duplex

FC-AL options OPEN half duplex

FC-AL options Open sequences per exchange

24, 26

7, 40

operating option configurations option selection options orientation OS out-of-plane distortion

P_LOGI

received on Port A received on Port B

package size packaged parameter rounding pass-through state PBC

48, 52 PBdata PCB

temperature PCBA peak operating current peak-to-peak measurements PECL input performance characteristics

detailed

general performance degradation performance highlights physical damage physical interface

description physical specifications PI

37, 38 pin descriptions PN

36, 39 port bypass circuit port bypass LED connection Port DISCovery Port Discovery (PDISC) port identifier field port login

accept Port Name Port name (initiator’s) power

dissipation

requirements, AC

requirements, DC

sequencing Power control page (1Ah) command power distribution Prefetch command prefetch/multi-segmented cache control preventive maintenance printed circuit board (PCB)

cooling private loop

FC-AL options Proc Assc Process Accept (ACC) Process Login (PRLI) Process Login Accept (ACC) payload process login payload data Process Logout (PRLO) public loop

FC-AL options pull down resistor

37 37

15, 48, 52

37, 38

35, 37

Cheetah 36FC Product Manual, Rev. D 65

queue tagging 47

radio interference regulations 3

36, 39

Random relative offset RCD bit Read buffer command Read capacity command Read combined header and data mode (0) Read command Read data mode (2) Read defect data command Read descriptor mode (3) Read extended command Read Link Status (RLS) Read long command read/write data heads Reassign blocks command Receive buffer field size receive buffer field size Receive diagnostic results command receive eye

receivers recommended mounting reference

Regenerate command Register FC-4 Types (RFT_ID) Relative address command relative h umidity Rel ease c ommand Released (10) command reliability

repair and return information reporting actual retry count Request sense command reservation conflict status Reserve command Reserved (10) command resonance return information Rezero unit command Rigid disc drive geometry page

rotation speed running disparity

diagram

documents

and service specifications

command

safety 3 SCA part numbers SCSI interface

commands supported

SCSI Interface Product Manual Search data

36, 39

equal command high command

low comma nd Seek command seek error

13, 15

7, 16

defined

rate Seek extended command seek performance characteristics seek time

average typical

full st roke typica l

single track typical segmented caching SEL ID

lines

standard feature Self-Monitoring Analysis and Reporting Technology

Send diagnostics page command Sequential delivery service

life

philosophy

tools Service Options Service options Set limits com mand shielding shipping shipping container shock

and vibration shock mount signal

characteristics

LED driver single-unit shipping pack kit SMART SMP = 1 in Mode Select command SO

36, 39 spindle brake Stacked connection req. standards Start unit/stop unit command start/stop time support services Supported diagnostics pages command surface stiffness

allowable for non-flat surface switches Synchronize cache command synchronized spindle

operation system chassis

36, 39

41, 42

66 Cheetah 36FC Product Manual, Rev. D

target reset function 35

41, 42

task management functions

22, 32 22

35 35

Abor t task s e t Clear ACA Clear task set Target reset termi n ate task

task management response codes

Function complete 00 Function not supported 05

Function reject 04 task set ful l statu s technical support services temperature

ambient

case

22 gradient limits

22 non-operating PCB and HDA regulation See also cooling

termi n ate ta sk fun c ti on terminators Test unit ready command Third-party Process Logout (TRPLO) tracks per inch tracks per surface Translate page command transmit eye diagram transmitters transporting the drive TTL input characteristics

Write and verify command Write buffer command Write combined header and data mode (0)

Write command Write data mode (2) write errors Write extended command Write long command Write same command

XD read 43 XD write XD write extended command XID reassign XP write

zero latency read 47 zone bit recording (ZBR)

UI 37, 38

37, 38

unique identifier Unit attention page (00h) command Unit serial number page command unrecoverable

error write error, defined

unrecovered media data

Valid vers io n le v el 36, 39 Verify command Verify error recovery page (07h) command vibration Vital product data page command

24, 26

warranty 17 word sync

Seagate Technology, LLC 920 Disc Drive, Scotts Valley, California 95066-4544, USA

Publication Number: 83329460, Rev. D, Printed in USA

seagate ST136403FC Installation guide

Specifications and Main Features

Frequently Asked Questions

User Manual

Contents

List of Figures

1.0 Scope

2.0 Applicable standards and reference documentation

2.1 Standards

2.1.1 Electromagnetic compatibility

2.1.1.1 Electromagnetic susceptibility

2.2 Reference documents

3.0 General description

3.1 Standard features

3.2 Media description

3.3 Performance

3.4 Reliability

3.5 Unformatted a n d formatted capacities

3.6 Programmable drive capacity

3.7 Factory-installed accessories

3.8 Factory-installed options

3.9 User-installed accessories

4.0 Performance characteristics

4.1 Internal drive characteristics

4.2 Seek performance characteristics

4.2.1 Access time

4.2.3 General performance characteristics

4.3 S tar t/stop ti me

4.4 Prefetch/multi-segmented cache control

4.5 Cache operation Note.

4.5.1 Caching write data

4.5.2 Prefetch operation

5.0 Reliability specifications

5.1 Error rates

5.1.1 Environmental interference

5.1.2 Interface errors

5.1.3 Write erro rs

5.1.4 Seek errors

5.2 Reliability and service

5.2.1 Mean time between failure (MTBF)

5.2.2 Field failure rate vs time

5.2.3 Preventive maintenance

5.2.4 Service life

5.2.5 Servi c e philosophy

5.2.6 Service tools

5.2.7 Hot plugging the driv e

5.2.8 S.M.A.R.T.

5.2.9 Product warranty

6.0 Physical/electrical specifications

6.1 AC power requirem ents

6.2 DC power requirements

6.2.1 Conducted noise immunity

6.2.2 Power sequencing

6.2.3 Curre nt prof ile s

6.3 Power dissipation

6.4 Envi ronmental li m i ts

6.4.1 Temperature

6.4.2 Relative humidity

6.4.3 Effective altitude (sea level)

6.4.4 Shock and vibration

6.4.4.1 Shock

6.4.4.2 Vibration

6.4.5 Air cleanliness

6.4.6 Acoustics

6.4.7 Electromagnetic susceptibility

6.5 Mechanical specifications

7.0 Defect and error management

7.1 Drive internal defects/errors

7.2 Drive error recovery procedures

7.3 FC-AL system errors

8.0 Installation

8.1 Drive ID/option selection

8.2 LED connections

8.2.1 J6 connector requirements

8.3 Drive orientation

8.4 Cooling

8.4.1 Air flow

8.5 Drive mounting

8.6 Grounding

9.0 Interface requirements