Seagate ST3146807FC, ST373307FC, ST336607FC User Manual

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Cheetah 10K.6 FC Disc Drive

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ST3146807FC

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ST373307FC

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ST336607FC

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Product Manual, Volume 1

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Cheetah 10K.6 FC Disc Drive

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ST3146807FC

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ST373307FC

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ST336607FC

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Product Manual, Volume 1

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Publication number: 100195490, Rev. B

Seagate, Seagate Technology, and the Seagate logo are registered trademarks of Seagate Technology LLC. Cheetah, SeaFAX, SeaFONE, SeaBOARD, and SeaTDD are either registered trademarks or trademarks of Seagate Technology LLC. Other product names are registered trademarks or trademarks of their owners.

Seagate reserves the right to change, without notice, product offerings or specifications. No part of this publica-

tion may be reproduced in any form without written permission of Seagate Technology LLC.

Printed in the United States of America

Revision status summary sheet

Revision Date Writer/Engineer Sheets Affected

A 06/18/2002 K. Schweiss/B. Hohn 1/1, v-viii, 1-72 B 06/26/2002 K. Schweiss/B. Hohn 19

Notice.

Product Manual 100195490 is Volume 1 of a two volume document with the Fibre Channel Interface information in the Fibre Channel Interface Manual, part number 77767496.

If you need the Fibre Channel Interface information, order the Fibre Channel Interface Manual, part number 77767496.

Cheetah 10K.6 FC Product Manual, Rev. B v

Contents

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

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

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

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

2.1.2 Electromagnetic compliance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

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

3.0 General description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

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

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

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

3.4 Reliability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

3.5 Unformatted 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 (in minutes) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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 operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

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

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

4.5.3 Optimizing cache performance for desktop and server applications . . . . . . . . . . . 12

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

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

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

5.1.2 Write errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

5.1.3 Seek errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

5.2 Reliability and service. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

5.2.1 Mean time between failure (MTBF) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

5.2.2 Preventive maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

5.2.3 Service life . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

5.2.4 Service philosophy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

5.2.5 Service tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

5.2.6 Hot plugging the drive. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

5.2.7 S.M.A.R.T. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

5.2.8 Drive Self Test (DST) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

5.2.9 Product warranty. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

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

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

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

6.2.1 Conducted noise immunity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

6.2.2 Power sequencing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

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

6.3 Power dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

6.3.1 Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

6.3.2 Relative humidity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

6.3.3 Effective altitude (sea level) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

vi Cheetah 10K.6 FC Product Manual, Rev. B

6.3.4 Shock and vibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26

6.3.5 Air cleanliness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29

6.3.6 Acoustics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29

6.3.7 Electromagnetic susceptibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29

6.4 Mechanical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30

7.0 Defect and error management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31

7.1 Drive internal defects/errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31

7.2 Drive error recovery procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31

7.3 FC-AL system errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32

8.0 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33

8.1 Drive ID/option selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33

8.2 LED connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33

8.2.1 J6 connector requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34

8.3 Drive orientation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34

8.4 Cooling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34

8.5 Drive mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35

8.6 Grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36

9.0 Interface requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37

9.1 FC-AL features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37

9.1.1 Fibre Channel link service frames . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37

9.1.2 Fibre Channel task management functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37

9.1.3 Fibre Channel task management responses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37

9.1.4 Fibre Channel port login. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38

9.1.5 Fibre Channel port login accept . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39

9.1.6 Fibre Channel Process Login. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39

9.1.7 Fibre Channel Process Login Accept. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39

9.1.8 Fibre Channel fabric login . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40

9.1.9 Fibre Channel fabric accept login . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41

9.1.10 Fibre Channel Arbitrated Loop options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42

9.2 Dual port support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42

9.3 SCSI commands supported . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43

9.3.1 Inquiry data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47

9.3.2 Mode Sense data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47

9.4 Miscellaneous operating features and conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52

9.5 FC-AL physical interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53

9.5.1 Physical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53

9.5.2 Connector requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54

9.5.3 Electrical description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55

9.5.4 Pin descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55

9.5.5 FC-AL transmitters and receivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56

9.5.6 Power. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56

9.5.7 Fault LED Out . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56

9.5.8 Active LED Out . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56

9.5.9 Enable port bypass signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57

9.5.10 Motor start controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57

9.5.11 SEL_6 through SEL_0 ID lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57

9.5.12 Device control codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60

9.6 Signal characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60

9.6.1 TTL input characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60

9.6.2 LED driver signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60

9.6.3 Differential PECL output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61

9.6.4 Differential PECL input. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61

10.0 Seagate Technology support services. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .63

Cheetah 10K.6 FC Product Manual, Rev. B vii

List of Figures

Figure 1. Cheetah 10K.6 FC family disc drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Figure 2. Cheetah 10K.6 FC disc drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Figure 3. Typical ST3146807FC drive +12V current profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Figure 4. Typical ST373307FC drive +12V current profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Figure 5. Typical ST336607FC drive +12V current profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Figure 6. Typical ST3146807FC drive +5V current profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Figure 7. Typical ST373307FC drive +5V current profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Figure 8. Typical ST336607FC drive +5V current profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Figure 9. ST3146807FC DC current and power vs. input/output operations per second . . . . . . . . . . . 24

Figure 10. ST373307FC DC current and power vs. input/output operations per second . . . . . . . . . . . . 24

Figure 11. ST336607FC DC current and power vs. input/output operations per second . . . . . . . . . . . . 25

Figure 12. Environmental limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Figure 13. Location of the HDA Temperature check point . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Figure 14. Recommended mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Figure 15. Mounting configuration dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Figure 16. Physical interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Figure 17. LED indicator connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Figure 18. Air flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Figure 19. Physical interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Figure 20. Port bypass circuit physical interconnect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Figure 21. FC-AL SCA device connector dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

Figure 22. J6 connector dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

Figure 23. FC-AL transmitters and receivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

Figure 24. Transmit eye diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

Figure 25. Receive eye diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

Cheetah 10K.6 FC Product Manual, Rev. B 1

1.0 Scope

This manual describes Seagate Technology® LLC, Cheetah® 10K.6 FC (Fibre Channel) disc drives.

Cheetah 10K.6 FC drives support the Fibre Channel Arbitrated Loop and SCSI Fibre Channel Protocol specifications to the extent described in this manual. The describes the general Fibre Channel Arbitrated Loop characteristics of this and other Seagate Fibre Channel drives.

Figure 1. Cheetah 10K.6 FC family disc drive

Fibre Channel Interface Manual

(part number 77767496)

2 Cheetah 10K.6 FC Product Manual, Rev. B

Cheetah 10K.6 FC Product Manual, Rev. B 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 host equipment to provide adequate power and environment in order to achieve optimum performance and compliance with applicable industry and 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 mounted in order to guarantee the specified performance characteristics. Mounting by bottom holes must meet the requirements of Section 8.5.

2.1 Standards

The Cheetah 10K.6 FC family complies with Seagate standards as noted in the appropriate sections of this manual and the Seagate

The Cheetah 10K.6 FC 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 Subpart 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.

Fibre Channel Interface Manual

, part number 77767496.

2.1.1.1 Electromagnetic susceptibility

As a component assembly, the drive is not required to meet any susceptibility performance requirements. It is the responsibility of those integrating the drive within their systems to perform those tests required 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 drive. See Section 5.1.1 and Table 1, DC power requirements.

2.1.2 Electromagnetic compliance

Seagate uses an independent laboratory to confirm 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:

• Typical current use microprocessor

• 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 Electromagnetic Compatibility Directive 89/336/EEC of 03 May 1989 as amended by Directive 92/31/EEC of 28 April 1992 and Directive 93/68/EEC of 22 July 1993.

4 Cheetah 10K.6 FC Product Manual, Rev. B

Australian C-Tick

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).

Korean MIC

If this model has the Korean Ministry of Information and Communication (MIC) logo, it complies with paragraph 1 of Article 11 of the Electromagnetic Compatibility (EMC) Control Regulation and meets the Electromagnetic Compatibility Framework requirements of the Radio Research Laboratory (RRL) Ministry of Information and Communication Republic of Korea.

Taiwanese BSMI

If this model has two Chinese words meaning “EMC certification” followed by an eight digit identification number, as a Marking, it complies with Chinese National Standard (CNS) 13438 and meets the Electromagnetic Compatibility (EMC) Framework requirements of the Taiwanese Bureau of Standards, Metrology, and Inspection (BSMI).

2.2 Reference documents

Cheetah 10K.6 FC Installation Guide

Seagate part number: 100195492

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) NCITS TR-19 Private Loop SCSI Direct Attach (PLDA) NCITS 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) X3.270-1996 (SCSI-3) Architecture Model NCITS 305-199X (SCSI-3) Enclosure Services

Specification for Acoustic Test Requirement and Procedures

Seagate part number: 30553-001

Package Test Specification Seagate P/N 30190-001 (under 100 lb.) Package Test Specification Seagate P/N 30191-001 (over 100 lb.)

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

Cheetah 10K.6 FC Product Manual, Rev. B 5

3.0 General description

Cheetah 10K.6 FC drives combine giant magnetoresistive (GMR) heads, partial response/maximum likelihood (PRML) read channel electronics, embedded servo technology, and a Fibre Channel interface to provide high performance, high capacity data storage for a variety of systems including engineering workstations, network servers, mainframes, and supercomputers.

Cheetah 10K.6 FC drives are random access storage devices designed to support the Fibre Channel Arbitrated Loop (FC-AL) and SCSI Fibre Channel Protocol as described in the ANSI specifications, this document, and the acteristics of this drive. Cheetah 10K.6 FC drives are classified as intelligent peripherals and provide level 2 conformance (highest level) with the ANSI SCSI standard.

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.

Fibre Channel Interface Manual

(part number 77767496) which describes the general interface char-

Figure 2. Cheetah 10K.6 FC disc drive

Cheetah 10K.6 FC 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 10K.6 FC drives decode track 0 location data from the servo data embedded on each surface to eliminate 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 minimal power dissipation.

6 Cheetah 10K.6 FC Product Manual, Rev. B

3.1 Standard features

Cheetah 10K.6 FC drives have the following standard features:

• Integrated dual port FC-AL controller

• Concurrent dual port transfers

• Support for FC arbitrated loop, private and public attachment

• Differential copper FC drivers and receivers

• Downloadable firmware using the FC-AL interface

• Supports SCSI enclosure services via 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 commands. 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 528 bytes per logical block) in even numbers of blocks

• Selectable frame sizes from 256 to 2,112 bytes

• Industry standard 3.5-inch low profile 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 and servo wedge 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

• 8,192 Kbyte data buffer. 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 magnetic material, overcoated with a proprietary protective layer for improved durability and environmental protection.

3.3 Performance

• Programmable multi-segmentable cache buffer

• 200 Mbytes/sec maximum instantaneous data transfers per port

• 10K 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

3.4 Reliability

• 1,200,000 hour MTBF

• LSI circuitry

• Balanced low mass rotary voice coil actuator

Cheetah 10K.6 FC Product Manual, Rev. B 7

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

• Dithering

3.5 Unformatted and formatted capacities

Formatted capacity depends on the spare reallocation sectors scheme selected, the number of data 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

ST3146807FC 11177330h ( ST373307FC 88BB998h ( ST336607FC 445DCCCh (36.7) Gbytes (47.5) Gbytes

146.8) Gbytes (190.0) Gbytes

73.3) Gbytes (95.0) 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 equipment may modify the data block size before issuing a format command and obtain different formatted capacities than those listed. Cheetah 10K.6 FC drives use a zone sparing scheme. The drive is divided into frequency zones with a variable number of spares in each zone.

Note. For 2 gigabit operation, sector sizes must be divisible by 8.

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 Interface Manual

, part number 7767496. A value of zero in the Number of Blocks field indicates that the drive will not change the capacity it is currently formatted 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 Number of Blocks field. A value greater 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 10K.6 FC Installation Guide

(part number 100195492).

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 sector size requested.

• Single-unit shipping pack. The drive is normally shipped in bulk packaging to provide maximum 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 10K.6 FC Installation Guide,

part number 100195492, is usually included with each standard

OEM drive shipped, but extra copies may be ordered.

• The

Safety and Regulatory Agency Specifications

, part number 75789512, is usually included with each

standard 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.

• Single-unit shipping pack.

8 Cheetah 10K.6 FC Product Manual, Rev. B

Cheetah 10K.6 FC Product Manual, Rev. B 9

4.0 Performance characteristics

This section provides detailed information concerning performance-related characteristics and features of Cheetah 10K.6 FC drives.

4.1 Internal drive characteristics

ST3146807FC...........ST373307FC..........ST336607FC

Drive capacity 146.8.........................73.3 ........................36.7 ........... Gbytes (formatted, rounded off value)

Read/write data heads 8................................4 .............................2

Bytes per track 368 ............................368 .........................368 ............ Kbytes (average, rounded off values)

Bytes per surface 1,835.........................1,835 ......................1,835 ......... Mbytes (unformatted, rounded off value)

Tracks per surface (total) 49,855 .......................49,855 ....................49,855 ....... Tracks (user accessible)

Tracks per inch 64,000.......................64,000 ....................64,000 ....... TPI

Peak bits per inch 570............................570 .........................570 ............ KBPI

Internal data rate 475-841.....................475-841 .................. 475-841 ..... Mbits/sec (variable with zone)

Disc rotation speed 10,008.......................10,008 ....................10,008 ....... rpm (+

Avg rotational latency 2.99...........................2.99 ........................2.99 ........... msec

4.2 Seek performance characteristics

4.2.1 Access time

0.5%)

Including controller overhead

Read Write Read Write

Average Typical

Single track Typical

Full stroke Typical

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

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

3. Typical access times are measured under nominal conditions of temperature, voltage, and hor-

izontal orientation as measured on a representative sample of drives.

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

Access to data = controller overhead + average seek time + latency time.

3,4

4.90 5.50 4.70 5.30

0.55 0.75 0.35 0.55

9.20 9.70 9.00 9.50

1, 2

(msec)

Not including controller overhead

1,2

(msec)

4.2.2 Format command execution time (in minutes)

ST3146807FC ST373307FC ST336607FC

Maximum (with verify)

Maximum (without verify)

180 90 45 90 45 30

10 Cheetah 10K.6 FC Product Manual, Rev. B

4.2.3 General performance characteristics

Minimum sector interleave 1 to 1

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

Minimum 59 MBytes/sec Average 94 MBytes/sec Maximum

105 MBytes/sec

Fibre Channel Interface maximum instantaneous transfer rate 1 GHz

106 Mbytes/sec* per port (dual port = 212 Mbytes/sec*)

Logical block sizes

Default is 512-byte data blocks Variable 512 to 528 bytes per sector in even number of bytes per sector. If n (number of bytes per sector) is odd, then n-1 will be used.

Read/write consecutive sectors on a track Yes

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

Overhead time for head switch in sequential mode

Overhead time for one track cylinder switch in sequential mode

Average rotational latency

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

from the host.

Negligible

0.8 msec

1.2 msec (typical)

2.99 msec

2 GHz 212 Mbytes/sec* per port (dual port = 424 Mbytes/sec*)

4.3 Start/stop time

If the Motor Start option is disabled, the drive becomes ready within 20 seconds after DC power is applied. If a recoverable 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 time is less than 30 seconds (maximum) from removal of DC power.

If the Motor Start option is enabled, the internal controller accepts the commands listed in the Fibre Channel Interface Manual less than 3 seconds after DC power has been applied. After the Motor Start command has been received, the drive becomes ready for normal operations within 20 seconds (excluding the error recovery procedure). The Motor Start command can also be used to command 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 algorithms that in many cases can enhance system performance. Cache refers to the drive buffer storage space when it is used in cache operations. To select this feature, the host sends the Mode Select 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 15.

4.5 Cache operation

Note. Refer to the

Fibre Channel Interface Manual

for more detail concerning the cache bits.

Of the 8,192 kbytes physical buffer space in the drive, 6,877 kbytes can be used as a cache.

Cheetah 10K.6 FC Product Manual, Rev. B 11

The buffer can be divided into logical segments (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 segment of the buffer. If the cache is enabled (see RCD bit in the command is retrieved from the buffer, if possible, before any disc access is initiated. If cache operation 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 for the 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 through some buffer segment on the way to the host. On a cache 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

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 segment 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.

Fibre Channel Interface Manual

), data requested by the host with a read

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 and 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 cylinder boundary to fetch data only if the Discontinuity (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 32. Divide the 6,877 Kbytes in the buffer by the number of segments to get the segment size in bytes; then divide by the sector size to get the number of sectors per segment, any partial sectors remaining are not used. Default is 3 segments.

Note. The size of each segment is not reported by Mode Sense command page 08h, bytes 14 and 15. The

value 0XFFFF is always reported regardless of the actual size of the segment. Sending a size specification 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 hits. The same buffer space and segmentation is used as set up for read functions. 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.

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

12 Cheetah 10K.6 FC Product Manual, Rev. B

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 been written to the medium. If 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 15 shows the mode default settings for the drive.

4.5.2 Prefetch operation

If the Prefetch feature is enabled, data in contiguous logical blocks on the disc immediately beyond that which was requested by a Read command are retrieved and stored in the buffer for immediate transfer from the buffer to the host on subsequent Read commands that request those 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 Prefetch 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 senses that a prefetch hit will likely occur, even if two consecutive read operations were not for physically 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.

4.5.3 Optimizing cache performance for desktop and server applications

Desktop and server applications require different drive caching operations for optimal performance. This means it is difficult to provide a single configuration that meets both of these needs. In a desktop environment, you want to configure the cache to respond quickly to repetitive accesses of multiple small segments of data without taking the time to “look ahead” to the next contiguous segments of data. In a server environment, you want to configure the cache to provide large volumes of sequential data in a non-repetitive manner. In this case, the ability of the cache to “look ahead” to the next contiguous segments of sequential data is a good thing.

The Performance Mode (PM) bit controls the way the drive switches the cache buffer into different modes of segmentation. In “server mode” (PM bit = 0), the drive can dynamically change the number of cache buffer segments as needed to optimize the performance, based on the command stream from the host. In “desktop mode” (PM bit = 1), the number of segments is maintained at the value defined in Mode Page 8, Byte 13, at all times. For additional information about the PM bit, refer to the Unit Attention Parameters page (00h) of the Mode Sense command (1Ah) in the

Fibre Channel Interface Product Manual

, part number 77767496.

Cheetah 10K.6 FC Product Manual, Rev. B 13

5.0 Reliability specifications

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

Seek error rate

Read Error Rates

Recovered Data

Unrecovered Data

Miscorrected Data

Interface error rate

Less than 10 errors 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 61) MTBF 1,200,000 hours Service life 5 years Preventive maintenance None required

1. Error rate specified with automatic retries and data correction with ECC enabled and all flaws reallocated.

5.1 Error rates

The error rates stated in this manual assume the following:

• The drive is operated in accordance with this manual using DC power as defined in 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 (OEM default settings)

bits transferred

bits transferred with minimum receive eye

bits transferred with typical receive eye

5.1.0.1 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.

5.1.1 Environmental interference

When evaluating systems operation under conditions of electromagnetic interference (EMI), the performance of the drive within the system is considered 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 Write errors

Write errors can occur as a result of media defects, environmental interference, or equipment malfunction. 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 that cannot be corrected within two attempts at writing the record with a read verify after each attempt (excluding media defects).

5.1.3 Seek errors

A seek error is defined as a failure of the drive to position the heads to the addressed track. After detecting an initial seek error, the drive automatically performs an error recovery process. If the error recovery process fails, a seek positioning error (15h) is reported with a Medium error (3h) or Hardware error (4h) reported in the

14 Cheetah 10K.6 FC Product Manual, Rev. B

Sense Key. This is an unrecoverable 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 informa-

tion.

5.2 Reliability and service

You can enhance the reliability of Cheetah 10K.6 FC disc drives by ensuring that the drive receives adequate cooling. Section 6.0 provides recommended air-flow information, temperature measurements, and other information, 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 1,200,000

hours when operated in an environment that ensures the case temperatures specified in Section 6.3.1 are not exceeded. Short-term excursions up to the specification limits of the operating environment will not affect MTBF performance. Operating the drive at case temperatures above these values will adversely affect the drive’s ability to meet specifications. See Section Figure 12., "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 6.3.1 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 Preventive maintenance

No routine scheduled preventive maintenance is required.

5.2.3 Service life

The drive has a useful service life of five 5 years. Depot repair or replacement of major parts is permitted during the lifetime.

5.2.4 Service philosophy

Special equipment is required to repair the drive HDA. To achieve the above service life, repairs must be performed only at a properly equipped and staffed Seagate service 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.

5.2.5 Service tools

No special tools are required for site installation or recommended for site maintenance. Refer to Section 5.2.4. 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 parts for the drive.

Cheetah 10K.6 FC Product Manual, Rev. B 15

5.2.6 Hot plugging the drive

Inserting and removing the drive on the FC-AL will interrupt loop operation. The interruption occurs when the receiver of the next device in the loop must synchronize to a different input signal. FC error detection mechanisms, character sync, running disparity, word sync, and CRC are able to detect any error. Recovery 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 port bypass circuit (external 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 of the systems integrator to assure that 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 prior to inserting it into the system.

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.

5.2.7 S.M.A.R.T.

S.M.A.R.T. is an acronym for Self-Monitoring Analysis and Reporting Technology. This technology is intended to recognize conditions that indicate imminent drive failure and is designed to provide sufficient warning of a failure to allow you to back up the data before an actual failure occurs.

Note. The drive’s firmware monitors specific attributes for degradation over time but can’t predict instanta-

neous 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 write operations. When the PERF bit is set, the drive is considered to be in “On-line Mode 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 resets the timer.

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

16 Cheetah 10K.6 FC Product Manual, Rev. B

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 times

On-line only delay DEXCPT = 0, PERF = 1

50 milliseconds

Fully-enabled delay DEXCPT = 0, PERF = 0

milliseconds

300

Reporting control

Reporting is controlled by the MRIE bits in the Informational Exceptions Control mode page (1Ch). Subject to the reporting method, the firmware 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 algorithm 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.

Predictive failures

S.M.A.R.T. signals predictive failures when the drive is performing unacceptably for a period of time. 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 incremented each time the error rate is unacceptable and decremented (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.

5.2.8 Drive Self Test (DST)

Drive Self Test (DST) is a technology designed to recognize drive fault conditions that qualify the drive as a failed unit. DST validates the functionality of the drive at a system level.

There are two test coverage options implemented in DST:

1. Extended test

2. Short text

The most thorough option is the extended test that performs various tests on the drive and scans every logical block address (LBA) of the drive. The short test is time-restricted and limited in length—it does not scan the entire media surface, but does some fundamental tests and scans portions of the media.

If DST encounters an error during either of these tests, it reports a fault condition. If the drive fails the test, remove it from service and return it to Seagate for service.

5.2.8.1 DST Failure Definition

The drive will present a “diagnostic failed” condition through the self-tests results value of the diagnostic log page if a functional failure is encountered during DST. The channel and servo parameters are not modified to test the drive more stringently, and the number of retries are not reduced. All retries and recovery processes are enabled during the test. If data is recoverable, no failure condition will be reported regardless of the number of retries required to recover the data.

Cheetah 10K.6 FC Product Manual, Rev. B 17

The following conditions are considered DST failure conditions:

• Seek error after retries are exhausted

• Track-follow error after retries are exhausted

• Read error after retries are exhausted

• Write error after retries are exhausted

Recovered errors will not be reported as diagnostic failures.

5.2.8.2 Implementation

This section provides all of the information necessary to implement the DST function on this drive.

5.2.8.2.1 State of the drive prior to testing

The drive must be in a ready state before issuing the Send Diagnostic command. There are multiple reasons why a drive may not be ready, some of which are valid conditions, and not errors. For example, a drive may be in process of doing a format, or another DST. It is the responsibility of the host application to determine the “not ready” cause.

While not technically part of DST, a Not Ready condition also qualifies the drive to be returned to Seagate as a failed drive.

A Drive Not Ready condition is reported by the drive under the following conditions:

• Motor will not spin

• Motor will not lock to speed

• Servo will not lock on track

• Drive cannot read configuration tables from the disc

In these conditions, the drive responds to a Test Unit Ready command with an 02/04/00 or 02/04/03 code.

5.2.8.2.2 Invoking DST

To invoke DST, submit the Send Diagnostic command with the appropriate Function Code (001b for the short test or 010b for the extended test) in bytes 1, bits 5, 6, and 7. Refer to the Fibre Channel Interface Product Manual, part number 77767496, for additional information about invoking DST.

5.2.8.2.3 Short and extended tests

DST has two testing options:

1. short

2. extended

These testing options are described in the following two subsections.

Each test consists of three segments: an electrical test segment, a servo test segment, and a read/verify scan segment.

Short test (Function Code: 001b)

The purpose of the short test is to provide a time-limited test that tests as much of the drive as possible within 120 seconds. The short test does not scan the entire media surface, but does some fundamental tests and scans portions of the media. A complete read/verify scan is not performed and only factual failures will report a fault condition. This option provides a quick confidence test of the drive.

Extended test (Function Code: 010b)

The objective of the extended test option is to empirically test critical drive components. For example, the seek tests and on-track operations test the positioning mechanism. The read operation tests the read head element and the media surface. The write element is tested through read/write/read operations. The integrity of the media is checked through a read/verify scan of the media. Motor functionality is tested by default as a part of these tests.

The anticipated length of the Extended test is reported through the Control Mode page.

18 Cheetah 10K.6 FC Product Manual, Rev. B

5.2.8.2.4 Log page entries

When the drive begins DST, it creates a new entry in the Self-test Results Log page. The new entry is created by inserting a new self-test parameter block at the beginning of the self-test results log parameter section of the log page. Existing data will be moved to make room for the new parameter block. The drive reports 20 parameter blocks in the log page. If there are more than 20 parameter blocks, the least recent parameter block will be deleted. The new parameter block will be initialized as follows:

1. The Function Code field is set to the same value as sent in the DST command

2. The Self-Test Results Value field is set to Fh

3. The drive will store the log page to non-volatile memory

After a self-test is complete or has been aborted, the drive updates the Self-Test Results Value field in its SelfTest Results Log page in non-volatile memory. The host may use Log Sense to read the results from up to the last 20 self-tests performed by the drive. The self-test results value is a 4-bit field that reports the results of the test. If the field is zero, the drive passed with no errors detected by the DST. If the field is not zero, the test failed for the reason reported in the field.

The drive will report the failure condition and LBA (if applicable) in the Self-test Results Log parameter. The Sense key, ASC, ASCQ, and FRU are used to report the failure condition.

5.2.8.2.5 Abort

There are several ways to abort a diagnostic. You can use a SCSI Bus Reset or a Bus Device Reset message to abort the diagnostic.

You can abort a DST executing in background mode by using the abort code in the DST Function Code field. This will cause a 01 (self-test aborted by the application client) code to appear in the self-test results values log. All other abort mechanisms will be reported as a 02 (self-test routine was interrupted by a reset condition).

5.2.9 Product warranty

Beginning on the date of shipment to the customer and continuing for a period of five years, Seagate warrants that each product (including components and subassemblies) that fails to function properly under normal use due to defect in materials or workmanship or due to nonconformance to the applicable specifications will be repaired or replaced, at Seagate’s option and at no charge to the customer, if returned by customer at customer’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 information, refer to the standard terms and conditions of purchase for Seagate products. Refer to Section 10 for contact 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 receipt of components improperly packaged or obviously damaged in transit. Contact your authorized Seagate distributor to purchase additional boxes. Seagate recommends shipping by an air-ride carrier experienced in handling computer equipment.

Product repair and return 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 10K.6 FC Product Manual, Rev. B 19

6.0 Physical/electrical specifications

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

6.1 AC power requirements

None.

6.2 DC power requirements

The voltage and current requirements for a single drive are shown below. Values indicated apply at the drive connector.

Table 1: DC power requirements

ST3146807FC ST373307FC ST336607FC

Notes (Amps) (Amps) (Amps) (Amps) (Amps) (Amps)

Voltage +5V [8] +12V [2] +5V [8] +12V [2] +5V [8] +12V [2]

Regulation [5] ±5% ±5% [2] ±5% ±5% [2] ±5% ±5% [2]

Avg idle current DC X

Maximum starting current

(peak DC) DC 3σ [3]

(peak AC) AC 3σ [3]

Delayed motor start (max) DC 3σ [1] [4]

Peak operating current:

Typical DC X

Maximum DC 3σ [1]

Maximum (peak) DC 3σ

[1] [7]

[1] [6]

0.92 0.51 0.91 0.37 0.93 0.27

1.09 1.48 1.02 1.26 0.99 1.04

1.38 2.61 1.36 2.30 1.30 1.94

0.70 0.02 0.70 0.02 0.71 0.02

0.97 0.94 0.97 0.88 0.99 0.75

0.99 0.95 0.98 0.89 1.00 0.78

1.50 2.40 1.54 2.30 1.46 2.06

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

ues. Power supply at nominal voltage. Number of drives tested = 6, 22 Degrees C ambient.

[2] For +12 V, a –10% tolerance is allowed during initial spindle start 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 the Motor Start option is enabled and the drive has not yet received a Start

Motor command.

[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 (ST3146807 at 234, ST373307 at 239 and

ST336607 at 239) I/Os per second. Current and power specified at nominal voltages. Decreasing +5 volt supply by 5% increases 5 volt current by 3.6%. Decreasing +12 volt supply by 5% increases 12 volt current by 3%.

[7] During idle, the drive heads are relocated every 60 seconds to a random location within the band from

track zero to one-fourth of maximum track.

[8] Values shown are for operation at 2 Gb; for operation at 1 Gb, reduce the +5V by 0.10 amps. The +12V

current values are not affected by loop speed.

General DC power requirement notes.

1. Minimum current loading for each supply voltage is not less than 0.8% of the maximum operating current shown.

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

20 Cheetah 10K.6 FC Product Manual, Rev. B

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.

6.2.1 Conducted noise immunity

Noise is specified as a periodic and random distribution 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 drive power connector.

+5V +12V

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

6.2.2 Power sequencing

The drive does not require power sequencing. The drive protects against inadvertent writing during power-up and down.

6.2.3 Current profiles

Figures 3, 4 and 5 identify the drive +12V current profiles for each model ST3146807FC, ST3733307FC and ST336607FC, respectively. The current during the various times is as shown:

T0 Power is applied to the drive. T1 Controller self-tests are performed. T2 Spindle begins to accelerate under current limiting after performing internal diagnostics. T3 Spindle is up to speed and the Head-Arm restraint is unlocked.

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

Figure 3. Typical ST3146807FC drive +12V current profile

Cheetah 10K.6 FC Product Manual, Rev. B 21

Figure 4. Typical ST373307FC drive +12V current profile

Figure 5. Typical ST336607FC drive +12V current profile

22 Cheetah 10K.6 FC Product Manual, Rev. B

Figures 6, 7 and 8 identify the drive +5V current profiles for each model ST3146807FC, ST3733307FC and ST336607FC, respectively. The current during the various times is as shown:

Figure 6. Typical ST3146807FC drive +5V current profile

Cheetah 10K.6 FC Product Manual, Rev. B 23

Figure 7. Typical ST373307FC drive +5V current profile

Figure 8. Typical ST336607FC drive +5V current profile

24 Cheetah 10K.6 FC Product Manual, Rev. B

6.3 Power dissipation

ST3146807FC

Typical power dissipation under idle conditions is 10.72 watts (37.3 BTUs per hour).

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

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

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

3.4123.

ST31 4 6 807FC DC CURRENT/POW ER vs THROUGHPUT ( 2 Gb)

1.800

1.600

Random 8 Block Reads

18 . 0 0

16 . 0 0

5Volt A

12 V o l t A

Watts

1.400

1.200

1.000

Amperes

0.800

0.600

0.400

0.0 50.0 100.0 150.0 200.0 250.0

I/Os per Second

14 . 0 0

12 . 0 0

10 . 0 0

8.00

6.00

4.00

Power (watts)

Figure 9. ST3146807FC DC current and power vs. input/output operations per second

Note. Values shown are for operation at 2Gb, for operation at 1Gb, reduce the +5V by.10 amps. The +12V

current values are not affected by loop speed.

ST373307FC

Typical power dissipation under idle conditions is 8.99 watts (30.7 BTUs per hour).

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

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

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

3.4123.

ST373307 FC CURRENT/POW ER vs THROUGHPUT (2 gig)

1. 8 0 0

1. 6 0 0

Random 8 Block Reads

18 . 0 0

16 . 0 0

5Vo lt A

12 V o l t A

Wat ts

1. 4 0 0

1. 2 0 0

1. 0 0 0

Amperes

0.800

0.600

0.400

0.0 50 .0 100.0 150.0 200.0 250.0 300.0

I/Os per Second

14 . 0 0

12 . 0 0

10 . 0 0

8.00

6.00

4.00

Power (watts)

Figure 10. ST373307FC DC current and power vs. input/output operations per second

Note. Values shown are for operation at 2Gb, for operation at 1Gb, reduce the +5V by.10Amps. The +12V

current values are not affected by loop speed.

Cheetah 10K.6 FC Product Manual, Rev. B 25

ST336607FC

Typical power dissipation under idle conditions is 7.89 watts (26.9 BTUs per hour).

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

9). Locate the typical I/O rate for a drive in your system on the horizontal axis and read the corresponding +5 volt current, +12 volt current, and total watts on the vertical axis. To calculate BTUs per hour, multiply watts by

3.4123.

ST336607 FC CURRENT/POWER vs THROUGHPUT (2 gig)

Amperes

Random 8 Block Rea ds

1. 7 0 0

1. 5 0 0

1. 3 0 0

1. 10 0

0.900

0.700

18 . 0 0

16 . 0 0

14 . 0 0

12 . 0 0

10 . 0 0

8.00

5Vo lt A

12 V o l t A

Wat ts

Power (watts)

0.500

0.300

0.0 50.0 100.0 150.0 200.0 250.0

I/Os per Second

6.00

4.00

Figure 11. ST336607FC DC current and power vs. input/output operations per second

Note. Values shown are for operation at 2 Gb, for operation at 1 Gb, reduce the +5V by.10Amps. The +12V

current values are not affected by loop speed.

Figure 12. Environmental limits

Temperature and humidity values experienced by the drive must be such that condensation does not occur on any drive part. Altitude and atmospheric pressure specifications are referenced to a standard day at 58.7°F (14.8°C). Maximum wet bulb temperature is 82°F (28°C).

6.3.1 Temperature

a. Operating

With cooling designed to maintain the case temperature, the drive meets all specifications over a 41°F to 131°F (5°C to 55°C) drive ambient temperature range with a maximum temperature gradient of 36°F (20°C) per hour. The enclosure for the drive should be designed such that these temperatures are not exceeded. Air flow may be needed to achieve these temperature values (see Section 8.4). Operation at HDA 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 HDA case temperatures are not exceeded. Occasional excursions to drive ambient temperatures of 131°F (55°C) or 41°F (5°C) may occur without impact to specified MTBF. Air flow may be needed to achieve these temperatures. Continual or sustained operation at HDA case temperatures above these values may degrade MTBF. The maximum allowable continuous or sustained HDA case temperature for the rated MTBF is 122°F (50°C).

To confirm that the required cooling for the HDA is provided, place the drive in its final mechanical configuration, perform random write/read operations. After the temperatures stabilize, measure the case temperature.

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.

26 Cheetah 10K.6 FC Product Manual, Rev. B

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

.5"

Figure 13. Location of the HDA Temperature check point

6.3.2 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.

6.3.3 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)

6.3.4 Shock and vibration

Shock and vibration limits specified in this document are measured directly on the drive chassis. If the drive is installed in an enclosure to which the stated shock and/or vibration criteria is applied, 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 14, and in accordance with the restrictions of Section 8.5. Orientation of the side nearest the LED may be up or down.

6.3.4.1 Shock

a. Operating—normal

The drive, as installed for normal operation, shall operate error free while subjected to intermittent shock not exceeding 15 Gs at a maximum duration of 11 msec (half sinewave). The drive, as installed for normal operation, shall operate error free while subjected to intermittent shock not exceeding 15 Gs at a maximum duration of 2 msec (half sinewave). Shock may be applied in the X, Y, or Z axis.

Cheetah 10K.6 FC Product Manual, Rev. B 27

b. Operating—abnormal

Equipment, as installed for normal operation, does not incur physical damage while subjected to intermittent shock not exceeding 40 Gs at a maximum 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 degradation. Shock may be applied in the X, Y, or Z axis.

The drive subjected to nonrepetitive shock not exceeding 225 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 to nonrepetitive shock not exceeding 120 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.

d. Packaged

Disc drives shipped as loose load (not palletized) general freight will be packaged to withstand drops 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).

Package size Packaged/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 kg) or less by Seagate for general freight shipment shall withstand a drop test from 48 inches (1,070 mm) against a concrete floor or equivalent.

28 Cheetah 10K.6 FC Product Manual, Rev. B

Figure 14. Recommended mounting

Cheetah 10K.6 FC Product Manual, Rev. B 29

6.3.4.2 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

5-500 Hz @ 1.0 G (zero to peak)

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

Operating normal translational random flat profile

10 - 400 Hz 0.4 GRMS

b. Operating - abnormal

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

15 minutes of duration at major resonant frequency

5-500 Hz @ 1.5 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 available.

Operating abnormal translational random flat profile

10 - 400 Hz 1.2 GRMS

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 (zero to peak) 22-400 Hz @ 4.00 G (zero to peak)

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

Non-operating translational random flat profile

10 - 400 Hz 1.2 GRMS

6.3.5 Air cleanliness

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

6.3.6 Acoustics

Sound power during idle mode shall be 3.6 bels typical when measured to ISO 7779 specification.

There will not be any discrete tones more than 10 dB above the masking noise on typical drives when measured according to Seagate specification 30553-001. There will not be any tones more than 24 dB above the masking noise on any drive.

6.3.7 Electromagnetic susceptibility

See Section 2.1.1.1.

30 Cheetah 10K.6 FC Product Manual, Rev. B

6.4 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 15 for detailed mounting configuration dimensions. See Section 8.5, “Drive mounting.”

Height: 1.000 in 25.4 mm Width: 4.000 in 101.6 mm Depth: 5.75 in 146.05 mm Weight: 1.62 pounds 0.734 kilograms

-Z-T// S

-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

1.028

5.787

4.000

3.750

0.125

1.750

1.122

4.000

0.250

1.638

0.181

1.625

1.618

0.276 .015 .015

max max ± .010 ± .010 ± .010 ± .010 ± .020 ± .010 ± .010 ± .010 ± .020 ± .020 ± .003 ± .040 max max

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

Millimeters

26.10

147.00

101.60

95.25

3.18

44.45

28.50

101.60

6.35

41.60

4.60

41.28

41.10

7.00

0.38

max max ± .25 ± .25 ± .25 ± .25 ± .50 ± .25 ± .25 ± .25 ± .50 ± .50 ± .08 ± 1.02 max max

Figure 15. Mounting configuration dimensions

-X-

Cheetah 10K.6 FC Product Manual, Rev. B 31

7.0 Defect and error management

The drive, as delivered, complies with this product manual. The read error rates and specified storage capacities are not dependent upon use of defect management routines by the host (initiator).

Defect and error management in the SCSI protocol involves the drive internal defect/error management and FC-AL system error considerations (errors in communications between the initiator and the drive). Tools for 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 the drive primary defects list (referred to as the “P’ list and also as the ETF defect list). At factory format time, these known defects are also reallocated, that is, reassigned to a new place on the medium and the location 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 supported by the drive are described in the Also, more information on the drive Error Recovery philosophy is presented in the

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 commands described in the recovery time limits required in video applications.

The error recovery scheme supported by the drive provides a way to control the total error recovery time for the entire command in addition to controlling the recovery level for a single LBA. The total amount of time spent in error recovery for a command can be limited using the Recovery Time Limit bytes in the Error Recovery mode page. The total amount of time spent in error recovery for a single LBA can be limited using the Read Retry Count or Write Retry Count bytes in the Error Recovery mode page.

The drive firmware error recovery algorithms consists of 12 levels for read recoveries and five levels for write. Each level may consist of multiple steps, where a step is defined as a recovery function involving a single reread or re-write attempt. The maximum level used by the drive in LBA recovery is determined by the read and write retry counts.

Table 2 equates the read and write 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.

Fibre Channel Interface Manual

Fibre Channel Interface

. The drive implements selectable error

32 Cheetah 10K.6 FC Product Manual, Rev. B

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.

Table 2: Read and write retry count maximum recovery times

Read retry

count

0 77.7 0 35.9 1 89.7 1 53.8 2 305.0 2 59.8 3 328.9 3 113.7 4 370.8 4 227.4 5 418.6 5 (default) 269.2 6 532.3 7 544.3 8 568.2 9 622.0 10 682.5 11 (default) 1,377.5

Maximum recovery time per LBA (cumulative, msec)

Write retry

count

Maximum recovery time per LBA (cumulative, msec)

[1] Setting these retry counts 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 370.8 msec recovery time for each block 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 end with Check Condition status and an unrecoverable read error will be reported.

7.3 FC-AL system errors

Information on the reporting of operational errors or faults across the interface is given in the

Interface Manual

. The FCP Response returns information to the host about numerous kinds of errors or faults.

Fibre Channel

The Receive Diagnostic Results reports the results of diagnostic operations 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 10K.6 FC Product Manual, Rev. B 33

8.0 Installation

Cheetah 10K.6 FC 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 connector (FCSCA)

—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 Table 23). 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 unique hard addresses (and therefore have duplicate selection IDs assigned to two or more devices), the FC-AL generates a message 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 provides the pin descriptions for the 40pin 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 17). See Sections 9.5.7, 9.5.8, and 9.5.9 for descriptions of LED functions.

Figure 16. Physical interface

34 Cheetah 10K.6 FC Product Manual, Rev. B

Drive Front

Pin 1

Reserved

Port A Bypass LED [1]

Port B Bypass LED [1]

Fault LED [1]

Reserved

Active LED [2]

Reserved

+5V

Active LED [1]

Ground [3]

[1] The drive has a 1.2K ohm resistor 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 17. 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 mounted in any orientation. All drive 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 ambient temperature immediately surrounding the drive will not exceed temperature conditions specified in Section 6.3.1, "Temperature."

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 6.3.1.

Forced air flow may be required to keep temperatures at or below the temperatures specified in Section 6.3.1, in which case the drive should be oriented, or air flow directed, so that the least amount of air flow resistance is

Cheetah 10K.6 FC Product Manual, Rev. B 35

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 necessary, possible air-flow patterns are shown in Figure 18. The air-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 6.3.1 are met.

Above unit

Under unit

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

Above unit

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

Figure 18. Air flow

Under unit

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 distortion (units in inches or millimeters). The out-of-plane distortion (X) is determined by defining a plane with three of the four mounting points fixed and evaluating the out-of-plane deflection 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 Tech-

nology 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 structure capable of mounting the drive so that it can meet the shock and vibration specifications listed in this manual.

36 Cheetah 10K.6 FC Product Manual, Rev. B

8.6 Grounding

Signal ground (PCBA) and HDA ground are connected together in the drive and cannot be separated by the user. The equipment in which the drive is mounted is connected directly to the HDA and PCBA with no electrically 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 nonconductive (electrically isolating) method of mounting the drive in the host equipment.

Increased radiated emissions may result if you do not provide the maximum surface area ground connection between system ground and drive ground. This is the system designer’s and integrator’s responsibility.

Cheetah 10K.6 FC Product Manual, Rev. B 37

9.0 Interface requirements

This section partially describes the interface requirements as implemented on Cheetah 10K.6 FC drives. Additional information is provided in the

9.1 FC-AL features

This section lists the Fibre Channel-specific features supported by Cheetah 10K.6 FC drives.

9.1.1 Fibre Channel link service frames

Table 3 lists the link services supported by Cheetah 10K.6 FC drives.

Table 3: Link services supported

Type of frame Link service

Basic link service frames Abort Sequence (ABTS)

Basic link service reply frames Basic_Accept (BA_ACC)

Extended link service frames N_Port Login (PLOGI)

Extended link service reply frames Accept (ACC)

Fibre Channel Services Register FC-4 Types (RFT_ID)

Fibre Channel Interface Manual

Basic_Reject (BA_RJT)

Fabric Login (FLOGI) Logout (LOGO) Process Login (PRLI) Process Logout (PRLO) Read Link Status (RLS) Fabric Address Notification (FAN) Port Discovery (PDISC) Address Discovery (ADISC) Third-party Process Logout (TRPLO)

Link Service Reject (LS_RJT)

(part number 77767496).

9.1.2 Fibre Channel task management functions

Table 4 lists the Fibre Channel SCSI Fibre Channel Protocol (FC SCSI FCP) task management functions supported.

Table 4: Fibre Channel SCSI FCP task management functions

Task name Supported

Ter mi n a t e t a s k No

Clear ACA Yes

Target reset Yes

Clear task set Yes

Abort task set Yes

9.1.3 Fibre Channel task management responses

Table 5 lists the FC SCSI FCP response codes returned for task management functions supported.

Table 5: FC SCSI FCP response codes

Function name Response code

Function complete 00

Function not supported 04

Function reject 05

38 Cheetah 10K.6 FC Product Manual, Rev. B

9.1.4 Fibre Channel port login

Table 6 identifies the required content of the N_Port Login (PLOGI) payload from an initiator.

Table 6: N_Port login (PLOGI) payload

Bytes

0-15 03 00 00 00 XX XX BB BB CF XX FS FS XX XX XX XX Common

16-31 XXXX XXXXPNPNPNPNPNPNPNPNNNNNNNNN

32-35 NN NN NN NN

36-47 XXXXXXXXXXXXXXXXXXXXXXXXClass 1

48-51 XX XX XX XX

52-63 XXXXXXXXXXXXXXXXXXXXXXXXClass 2

64-67 XX XX XX XX

68-79 SOSOIC IC XXXXFSFSXXCSXXXXClass 3

80-83 OS OS XX XX

84-95 XXXXXXXXXXXXXXXXXXXXXXXXReserved

96-99 XX XX XX XX

100-111 XXXXXXXXXXXXXXXXXXXXXXXXVendor

112-115 XX XX XX XX Versi on

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 initiator login.

MSB Continuously increasing offset Must = 1

Random relative offset Not checked. Port Login Accept will return a 0—not supported.

Valid version level x

N_Port/F_Port Must = 0, N_Port

Alternate credit model Must = 1

Other bits reserved xxx XX

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

multiple of four bytes. For multiple frame sequences, all frames 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)—saved with the login parameters. If a change of the port name/AL_PA address association is detected dur-

ing a Port DISCovery, and implicit logout occurs and the initiator 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 valid Must = 1

Intermix x

Stacked connection 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 value greater than 0.

OS Open sequences per exchange Must be a value greater than 0.

Cheetah 10K.6 FC Product Manual, Rev. B 39

9.1.5 Fibre Channel port login accept

Table 7 identifies the N_Port Login access payload values.

Table 7: N_Port Login Accept (ACC) payload

Bytes

0-15 02 00 00 00 20 20 00 00 88 00 FS FS 00 FF 00 01 Common

16-31 000001F420PP002037UI UIUI20000020

32-35 37 UI UI UI

36-47 000000000000000000000000Class 1

48-51 00 00 00 00

52-63 000000000000000000000000Class 2

64-67 00 00 00 00

68-79 800000000000FSFS00FF0000Class 3

80-83 00 01 00 00

84-95 000000000000000000000000Reserved

96-99 00 00 00 00

100-111 000000000000000000000000Vendor -

112-115 00 00 00 00 Ver sion

FS Receive buffer field size. The drive returns and uses the receive buffer size from the N_Port Login Class 3 receive

buffer.

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 P_LOGI received on Port A.

02 P_LOGI received on Port B.

9.1.6 Fibre Channel Process Login

Table 8 lists the process login payload data.

Table 8: 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 00000022

XX Indicates fields that are not used.

9.1.7 Fibre Channel Process Login Accept

Table 9 lists Cheetah 10K.6 FC process login accept payload data.

Table 9: 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 00000012

40 Cheetah 10K.6 FC Product Manual, Rev. B

9.1.8 Fibre Channel fabric login

Table 10 lists the fabric login payload from the drive.

Table 10: Fabric Login (FLOGI) payload

Bytes

0-15 04 00 00 00 20 20 00 00 08 00 08 40 00 00 00 00 Common

16-31 000002F420PP002037UI UI UI02000020

32-35 37 UI UI UI

36-47 000000000000000000000000Class 1

48-51 00 00 00 00

52-63 000000000000000000000000Class 2

64-67 00 00 00 00

68-79 800000000000084000000000Class 3

80-83 00 00 00 00

84-95 000000000000000000000000Reserved

96-99 00 00 00 00

100-111 000000000000000000000000Vendor -

112-115 00 00 00 00 Versi on

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 10K.6 FC Product Manual, Rev. B 41

9.1.9 Fibre Channel fabric accept login

Table 10 lists the required content of the Fabric Login Accept (ACC) payload from the fabric.

Table 11: Fabric Login Accept (ACC) payload

Bytes

0-15 02 00 00 00 XX XX BB BB CF XX FS FS R_ A_ T0 V_ Common

16-31 E_ D_T0 V_ PNPNPNPNPNPNPNPNNNNNNNNN

32-35 NN NN NN NN

36-47 XXXXXXXXXXXXXXXXXXXXXXXXClass 1

48-51 XX XX XX XX

52-63 XXXXXXXXXXXXXXXXXXXXXXXXClass 2

64-67 XX XX XX XX

68-79 SOSOxx xx XXXXFSFSXXxx XXXXClass 3

80-83 OS OS XX XX

84-95 XXXXXXXXXXXXXXXXXXXXXXXXReserved

96-99 XX XX XX XX

100-111 XXXXXXXXXXXXXXXXXXXXXXXXVendor -

112-115 XX XX XX XX Ver sion

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 common and Class 3 parameters 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 Accept 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

42 Cheetah 10K.6 FC Product Manual, Rev. B

9.1.10 Fibre Channel Arbitrated Loop options

Table 12 lists the FC-AL options supported by Cheetah 10K.6 FC drives.

Table 12: FC-AL options supported

Option Supported

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 Position Yes

Loop Position Report Yes

9.2 Dual port support

Cheetah 10K.6 FC 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 ports will have the same loop address.

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

Note. When a Cheetah 10K.6 FC drive 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 product manuals.

Subject to buffer availability, the Cheetah 10K.6 FC drives support:

• Concurrent port transfers—The drive supports receiving transfers on both ports at the same time when the ports are on independent loops.

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

Cheetah 10K.6 FC Product Manual, Rev. B 43

9.3 SCSI commands supported

Table 13 lists the SCSI commands supported by Cheetah 10K.6 FC drives.

Table 13: 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 blocks

08h Y Read

0Ah Y Write

0Bh Y Seek

12h Y Inquiry

Y Vital product data page (00h)

Y Unit serial number page (80h)

Y Implemented operating def. page (81h)

Y IDevice identification page (83h)

Y Firmware numbers page (C0h)

Y Date code page (C1h)

Y Jumper settings page (C2h)

Y Device behavior page (C3h)

15h Y Mode select (same pages as Mode 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 Fibre Channel interface control page (19h)

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

44 Cheetah 10K.6 FC Product Manual, Rev. B

Table 13: Supported commands

Command code Supported [4] Command name

1Dh Y Send diagnostics page

25h Y Read capacity

28h Y Read extended

2Ah Y Write extended

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

(continued)

Y Translate page

Y Enclosure services page

Y Supported diagnostics pages

Y Translate page

Y Disable page out

Y Force unit access

N Relative address

Y Disable page out

Y Force unit access

N Relative address

Y Disable page out

Y Byte check

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 offsets 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)

Cheetah 10K.6 FC Product Manual, Rev. B 45

Table 13: Supported commands

Command code Supported [4] Command name

3Eh Y Read long

3Fh Y Write long

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 N XD write

51h N XP write

52h N 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 reserve in

5F A Persistent reserve out

60-7Fh N Not used

80h N XD write extended

81h N Rebuild

82h N Regenerate

83-8Fh N Not used

C0-DFh N Not used

EO-FFh N Not used

(continued)

Y Read descriptor mode (3)

N PBdata

NLBdata

Y Supported Log page (00h)

Y Write Error Counter page (02h)

Y Read Error Counter page (03h)

N Read Reverse Error Counter page (04h)

Y Verify Error Counter page (05h)

Y Non-medium Error Counter page (06h)

Y Temperature page (0Dh)

N Application Client page (0Fh)

Y Self Test Results page (10h)

Y Cache Statistics Counter page (37h)

Y Factory Log page (3Eh)

Y 3rd party reserve

N Extent reservation

46 Cheetah 10K.6 FC Product Manual, Rev. B

[1] Cheetah 10K.6 FC drives can format to any multiple of four bytes per logical block in the range 512 to 704

bytes.

[2] Warning. 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.

Cheetah 10K.6 FC Product Manual, Rev. B 47

9.3.1 Inquiry data

Table 14 lists the Inquiry command data that the drive should return to the initiator per the format given in the

Fibre Channel Interface Manual

Table 14: Cheetah 10K.6 FC inquiry data

Bytes Data (hex)

0-15 00 00 ** 12 8B 00 PP 0A 53 45 41 47 41 54 45 20 Vendor ID

16-31 [53 54 33 31 34 36 38 30 37 46 43] 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 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

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 32* *Copyright

112-127 30* 30* 32* 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).

03 = The device complies to ANSI X3.301:199x

PP 50 = Inquiry data for an Inquiry command received on Port A.

70 = Inquiry data for an Inquiry command received on Port B. R# Four ASCII digits representing the last four digits of the product firmware release number. S# Eight ASCII digits representing the eight digits of the product serial number. [ ] Bytes 16 through 25 reflect drive model.

9.3.2 Mode Sense data

The Mode Sense command provides a way for the drive to report its operating parameters 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 of new firmware into the flash E-PROM. An initiator can request and receive from the drive a list of default values and use those in a Mode Select command to set 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 media prior to shipping the drive. Some drives may have unique firmware with unique default values also.

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

48 Cheetah 10K.6 FC Product Manual, Rev. B

3. Current values

Current values are volatile values being used by the drive to control its operation. A Mode Select command can be used to change the values identified as changeable values. Originally, current values are installed from saved or default values after a power on reset, hard reset, Target Reset, or LIP Reset.

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 15, refer to Mode page 81, in the row entitled “CHG.” These are hex numbers representing the 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 changeable. Note also that bytes 06, 07, 09, 10, and 11 are not changeable, 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.

Cheetah 10K.6 FC Product Manual, Rev. B 49

Table 15: Mode Sense data default and changeable values for ST3146807FC drives

ST3146807FC

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 b4 00 00 00 00

CHG 82 0e ff ff 00 00 00 00 00 00 ff ff 00 00 00 00

DEF 83 16 46 a0 00 00 00 20 00 00 02 d0 02 00 00 01 00 66 00 66 40 00 00 00

CHG

DEF 84 16 00 c2 bf 08 00 00 00 00 00 00 00 00 00 00 00 00 00 00 27 31 00 00

CHG

DEF 87 0a 00 0b ff 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

00 ab 00 10 00 00 00 08 11 17 73 30 00 00 02 00

<-----------------------------Mode Page 10 Byte Header Data and Parameter Data Bytes--------------------------->

81 0a c0 0b ff 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 20 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 0c 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 00 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 10 00 00 00 00 00 00 00 00 01

CHG 9c 0a 9d 0f ff ff ff ff ff ff ff ff

DEF 80 06 00 00 0f 00 00 00

CHG 80 06 b7 40 0f 00 00 00

<--- Read capacity data --->

11 17 73 2f 00 00 02 00

50 Cheetah 10K.6 FC Product Manual, Rev. B

Table 16: Mode Sense data default and changeable values for ST373307FC drives

ST373307FC

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 b4 00 00 00 00

CHG 82 0e ff ff 00 00 00 00 00 00 ff ff 00 00 00 00

DEF 83 16 2a 9c 00 00 00 14 00 00 02 d1 02 00 00 01 00 90 00 66 40 00 00 00

CHG

DEF 84 16 00 c2 bf 04 00 00 00 00 00 00 00 00 00 00 00 00 00 00 27 31 00 00

CHG

DEF 87 0a 00 0b ff 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

00 ab 00 10 00 00 00 08 08 8b b9 98 00 00 02 00

<-----------------------------Mode Page 10 Byte Header Data and Parameter Data Bytes--------------------------->

81 0a c0 0b ff 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 20 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 05 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 00 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 10 00 00 00 00 00 00 00 00 01

CHG 9c 0a 9d 0f ff ff ff ff ff ff ff ff

DEF 80 06 00 00 0f 00 00 00

CHG 80 06 b7 40 0f 00 00 00

<--- Read capacity data --->

08 8b b9 97 00 00 02 00

Cheetah 10K.6 FC Product Manual, Rev. B 51

Table 17: Mode Sense data default and changeable values for ST373307FC drives

ST336607FC

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 b4 00 00 00 00

CHG 82 0e ff ff 00 00 00 00 00 00 ff ff 00 00 00 00

DEF 83 16 15 4e 00 00 00 0a 00 00 02 d1 02 00 00 01 00 66 00 66 40 00 00 00

CHG

DEF 84 16 00 c2 bf 02 00 00 00 00 00 00 00 00 00 00 00 00 00 00 27 31 00 00

CHG

DEF 87 0a 00 0b ff 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

00 ab 00 10 00 00 00 08 04 45 dc cc 00 00 02 00

<-----------------------------Mode Page 10 Byte Header Data and Parameter Data Bytes--------------------------->

81 0a c0 0b ff 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 20 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 03 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 00 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 10 00 00 00 00 00 00 00 00 01

CHG 9c 0a 9d 0f ff ff ff ff ff ff ff ff

DEF 80 06 00 00 0f 00 00 00

CHG 80 06 b7 40 0f 00 00 00

<--- Read capacity data --->

04 45 dc cb 00 00 02 00

52 Cheetah 10K.6 FC Product Manual, Rev. B

9.4 Miscellaneous operating features and conditions

Table 18 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 18: Miscellaneous features

Supported Feature or condition

Y FC-AL selective reset

Y Automatic contingent allegiance

N Asynchronous event notification

N Synchronized (locked) spindle operation

Y Segmented caching

N Zero latency read

Y Queue tagging (up to 128 queue tags supported)

Y Deferred error handling

Y Parameter rounding (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 rotational offset bytes

Table 19: 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 Task set full

NACA active

N ACA active, faulted initiator

Cheetah 10K.6 FC Product Manual, Rev. B 53

9.5 FC-AL physical interface

Figure 19 shows the location of the J1 Fibre Channel single connection attachment (FC-SCA) and the J6 connector. Figure 21 provides the dimensions of the FC-SCA. Figure 22 provides the dimensions of the J6 connector.

Details of the physical, electrical, and logical characteristics are provided within this section. The operational aspects of Seagate’s Fibre Channel drives are provided in the

Fibre Channel Interface Manual

Figure 19. Physical interface

9.5.1 Physical characteristics

This section defines physical interface connector.

9.5.1.1 Physical description

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 inserted into unpopulated locations or removed from the loop with loop operation recovery after a brief interruption. These PBCs are located external to the FC-AL device. Figure 20 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 20. Port bypass circuit physical interconnect

SerialInSerial

Select

Drive N

Out

Drive N+1

54 Cheetah 10K.6 FC Product Manual, Rev. B

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

The FC-AL SCA device connector is illustrated in Figure 21. The J6 connector is illustrated in Figure 22.

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 21. FC-AL SCA device connector dimensions

.079 (2 mm)

.079

(2 mm)

(17.983 mm)

Figure 22. 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

Cheetah 10K.6 FC Product Manual, Rev. B 55

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 20: FC-SCA pin descriptions

Pin Signal name Signal type Pin Signal name Signal type

1* -EN bypass port A Low Voltage

TTL output

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 collector out 27* +Port B_in Diff. PECL input pair

8* Reserved 28* -Port B_in

9* Start_1 [2] TTL input 29 Ground

10* Start_2 [2] TTL input 30* +Port A_out Diff PECL output pair

11* -EN bypass port B Low Voltage

12* SEL_6 TTL input/output 32 Ground

13* SEL_5 TTL input/output 33* +Port 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* DEV_CTRL_CODE_2

18* DEV_CTRL_CODE_1

19* 5 Volts 39 DEV_CTRL_CODE_0 [2] TTL input

20* 5 Volts 40 5 Volts c h a r g e

[1]

TTL output

TTL input 37 SEL_1 TTL input/output

[2]

TTL input 38 SEL_0 TTL input/output

[2]

21 12 Volts charge

26 Ground

31* -Port A_out

*Short pins in mating backpanel connector.

[1] This pin may be connected to external logic to detect the presence of the drive. The drive connects this

pin to the common ground.

[2] Pins 9, 10, 17, 18, and 39 are option select pins and are tied high by the drive circuitry. The preferred elec-

trical connection at the backplane is either open or grounded (open for the ‘1’ setting, grounded for the ‘0’ setting). Alternatively, these pins may be driven by a 3.3V logic device, pulled up to 3.3V through a pull-up resistor (recommended size of 10K ohm), or grounded through some other means.

56 Cheetah 10K.6 FC Product Manual, Rev. B

9.5.5 FC-AL transmitters and receivers

A typical FC-AL differential copper transmitter and receiver pair is shown in Figure 23. The receiver is required to provide the AC coupling to eliminate ground shift noise.

Transmitter

150

Figure 23. FC-AL transmitters and receivers

150

Differential

Transfer Medium

.01

150

.01

Receiver

9.5.6 Power

Power is supplied through the FC-SCA 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 the drive. The current return for the +12 volt power supply is through the common ground pins. The supply 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 among the voltage and ground 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 appropriate 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 21.

Table 21: 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 (command executing) Off

Spinning up or down Blinks steadily (50% on and 50% off)

Format in progress, each cylinder change Toggles on/off

Cheetah 10K.6 FC Product Manual, Rev. B 57

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 port. When an Enable Bypass signal is active, the corresponding Port Bypass LED signal in connector J1 is driven low by the disc drive. A pull down resistor, 1K, located with the PBC should be used 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 drive’s motor is started according to the Start_1 and Start_2 signals described in Table 22. The state of these signals can be wired into the backplane socket or driven by logic on the backplane.

Table 22: Motor start control signals

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 Motor spins up after a delay of 12 seconds times the modulo 8 value of

the numeric 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 determine drive address, and, optionally, for an Enclosure Services Interface. When the Parallel ESI line is high, the enclosure backpanel must provide address information on the SEL line. Refer to table 23 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 lines. The backpanel is required to provide high and low inputs to the SEL_ID lines per the specifications in table 25 on page 60.

Note. Table 23 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 ESI mode if supported. There are two modes of ESI, seven bits of enclosure status and a bidirectional mode. ESI support and the mode are determined by the drive using a discovery process. Refer to the

Fibre Channel Interface Manual

for a descrip-

tion of ESI operation.

58 Cheetah 10K.6 FC Product Manual, Rev. B

9.5.11.1 Parallel Enclosure Services Interface (ESI)

The parallel ESI line is an output from the drive. This line provides the enclosure with an indication of the present function of the SEL 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.

Cheetah 10K.6 FC Product Manual, Rev. B 59

Table 23: 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 5F 95

D5 0A 10 84 35 53 3A 60 96

D4 0B 11 82 36 54 39 61 97

D3 0C 12 81 37 55 36 62 98

D2 0D 13 80 38 56 35 63 99

D1 0E 14 7C 39 57 34 64 100

CE 0F 15 7A 3A 58 33 65 101

CD 10 16 79 3B 59 32 66 102

CC 11 17 76 3C 60 31 67 103

CB 12 18 75 3D 61 2E 68 104

CA 13 19 74 3E 62 2D 69 105

C9 14 20 73 3F 63 2C 6A 106

C7 15 21 72 40 64 2B 6B 107

C6 16 22 71 41 65 2A 6C 108

C5 17 23 6E 42 66 29 6D 109

C3 18 24 6D 43 67 27 6E 110

BC 19 25 6C 44 68 26 6F 111

BA 1A 26 6B 45 69 25 70 112

B9 1B 27 6A 46 70 23 71 113

B6 1C 28 69 47 71 1F 72 114

B5 1D 29 67 48 72 1E 73 115

B4 1E 30 66 49 73 1D 74 116

B3 1F 31 65 4A 74 1B 75 117

B2 20 32 63 4B 75 18 76 118

B1 21 33 5C 4C 76 17 77 119

AE 22 34 5A 4D 77 10 78 120

AD 23 35 59 4E 78 0F 79 121

AC 24 36 56 4F 79 08 7A 122

AB 25 37 55 50 80 04 7B 123

AA 26 38 54 51 81 02 7C 124

A9 27 39 53 52 82 01 7D 125

A7 28 40 52 53 83

A6 29 41 51 54 84

A5 2A 42 4E 55 85

SEL ID (hex)

Setting (dec)

AL_PA (hex)

SEL ID (hex)

Setting (dec)

AL_PA (hex)

SEL ID (hex)

Setting (dec)

60 Cheetah 10K.6 FC Product Manual, Rev. B

9.5.12 Device control codes

The drive inputs a Device Control Code on the DEV_CTRL_CODE lines at power up to determine the link rate on the Fibre Channel ports. Both ports run at the same rate. If the backpanel does not connect to these lines, the drive has 10K ohm pull up resistors that default the device control code to 7 (1.0625 GHz). Table 24 lists the supported codes.

Table 24: Device control code values

2 (pin 17) 1 (pin 18) 0 (pin 39) Definition

0 Reserved for Power failure warning.

1 Reserved for auto negotiation of link rate.

0 Reserved.

1 Reserved.

0 Reserved.

1 Reserved.

0 2.125 GHz operation on both ports.

1 1.0625 GHz operation on both ports.

9.6 Signal characteristics

This section describes the electrical signal characteristics of the drive’s input and output signals. See Table 20 on page 55 for signal type and signal name information.

9.6.1 TTL input characteristics

Table 25 provides the TTL characteristics.

Table 25: TTL characteristics

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 other outputs) 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 I

< -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 26 for the output characteristics of the LED drive signals.

Table 26: LED drive signal

State Current drive available Output voltage

LED off, high 0 < I

LED on, low I

< 100µA

< -30 mA 0 < VOL < 0.8V

Cheetah 10K.6 FC Product Manual, Rev. B 61

9.6.3 Differential PECL output

The serial PECL output signal voltage characteristics are provided in Table 27. 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 27: Differential PECL output characteristics

Description Parameter

Serial output voltage swing 600 < V

< 1300 mV

out

Figure 24 provides the data output valid eye diagram relative to the bit cell time. Table 29 lists the data values.

Bit Time

Vout (mv)

XMIT Eye

Figure 24. Transmit eye diagram

9.6.4 Differential PECL input

The serial PECL input signal voltage characteristics are provided in Table 28.

Table 28: Differential PECL input characteristics

Description Parameter Notes

Serial input voltage swing 400 < V

< 2.000 mV AC coupled

Figure 25 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. Table 29 lists the data values.

Bit Time

Vin (mv)

RCV Eye

(typical)

(minimum)

Figure 25. Receive eye diagram

62 Cheetah 10K.6 FC Product Manual, Rev. B

Table 29: Eye diagram data values

Link rate

1 GHz 2 GHz

Bit time 941 ps 470 ps

XMIT eye 725 ps min. 315 ps min.

RCV eye

Typical 659 ps 305 ps

Minimum 395 ps 226 ps

Cheetah 10K.6 FC Product Manual, Rev. B 63

10.0 Seagate Technology support services

Online Services

Internet

www.seagate.com for information about Seagate products and services. Worldwide support is available 24

hours daily by e-mail for your disc or tape questions.

Presales Support:

Disc: www.seagate.com/support/email/email_presales.html or DiscPresales@Seagate.com. Tape: www.seagate.com/support/email/email_tape_presales.html

Technical Support:

Disc: www.seagate.com/support/email/email_disc_support.html or DiscSupport@Seagate.com. Tape: www.seagate.com/support/email/email_tape_support.html

Reseller Marketplace

Reseller Marketplace is the storage industry’s first collaborative, e-commerce marketplace offering resellers the fastest, most efficient online purchasing process for Seagate storage solutions. The Reseller Marketplace at marketplace.seagate.com, an exclusive service for US resellers participating in the Seagate Partner Program (SPP), is designed to streamline the purchasing process of Seagate solutions and provide unprecedented value to Seagate’s resellers through real-time pricing and availability, fast and easy comparison shopping, and seamless integration with key distributors for a one-stop shopping experience.

Tape_Sales_Support@Seagate.com.

TapeSupport@Seagate.com.

For support, questions and comments: reseller.seagate.com/benefits/T1.html or 1-877-271-3285 (toll-free) 9

A.M. to 7 P.M. (eastern time) Monday through Friday.

Tape Purchases

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

Automated Services

SeaFONE® (1-800-SEAGATE) is Seagate’s toll-free number (1-800-732-4283) to access our automated self-

help services. Using a touch-tone phone, you can find answers to service phone numbers, commonly 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

obtain technical support information by return FAX 24 hours daily.

(1-800-SEAGATE) is Seagate’s automated FAX delivery system. Using a touch-tone phone, you can

Presales Support

Our Presales Support staff can help you determine which Seagate products are best suited for your specific application or computer system.

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 technical issues. If you need additional help, you can talk to a Seagate technical support specialist. Before calling, note your system configuration and drive model number (ST####).

SeaTDD™ (+1-405-936-1687) is a telecommunications device for the deaf (TDD). You can send questions or comments 24 hours daily and exchange messages with a technical support specialist from 8:00 11:45

A.M. and 1:00 P.M. to 6:00 P.M. (central time) Monday through Friday.

A.M. to

64 Cheetah 10K.6 FC Product Manual, Rev. B

Customer Service (CSO)

Warranty Service

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.

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

Call Center Toll-free Direct dial FAX

Disc: Tape:

Technical Support (SeaFONE)

1-800-SEAGATE or +1-405-936-1234 (for specific product phone number) FAX:

Disc:

+1-405-936-1685;

SeaFAX 1-800-SEAGATE SeaTDD +1-405-936-1687

1-877-271-3285 +405-936-1210 +1-405-936-1683 1-800-626-6637 +1-714-641-2500 +1-714-641-2410

Tape and Server Appliance:

+1-405-936-1683

Warranty Service

Call Center Toll-free Direct dial FAX / Internet

USA, Mexico and 1-800-468-3472 +1-405-936-1456 +1-405-936-1462

Latin America

Canada

Memofix

Adtech*

Brazil

MA Centro de Serviços*

1-800-636-6349 +1-905-660-4936 +1-905-660-4951

www.memofix.com

1-800-624-9857 +1-905-890-3099 +1-905-812-3977

www.adtech1.com

— +55-21-2509-7267 +55-21-2507-6672

e-mail: centro.de.servicos.brasil@seagate.com

European Support Services

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

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 Netherlands.

Call Center

Austria 0 800-20 12 90 Belgium 0 800-74 876 Denmark 80 88 12 66 France 0 800-90 90 52 Germany 0 800-182 6831 Ireland 1 800-55 21 22 Italy 800-790695 Netherlands 0 800-732 4283 Norway 800-113 91 Poland 00 800-311 12 38

A.M. to 5:00 P.M.

1. Authorized Service Centers

Cheetah 10K.6 FC Product Manual, Rev. B 65

Spain 900-98 31 24 Sweden 0 207 90 073 Switzerland 0 800-83 84 11 Turkey 00 800-31 92 91 40 United Kingdom 0 800-783 5177

FAX Services—All European Countries

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

Africa/Middle East Support Services

For presales, technical support, warranty service and FAX services 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.

Asia/Pacific Support Services

For Asia/Pacific presales and technical support, dial the toll-free number for your specific country. The Asia/ Pacific toll-free numbers are available from 6:00 ern time) Monday through Friday. If your country is not listed here, direct dial one of our technical support locations.

A.M. to 10:45 A.M. and 12:00 P.M. to 6:00 P.M. (Australian east-

Call Center Toll-free Direct dial FAX

Australia 1800-14-7201 — — China — — +86-10-6871-4316 Hong Kong 800-90-0474 — +852-2368 7173

India

1-600-33-1104 — — Indonesia 001-803-1-003-2165 — — Japan — — +81-3-5462-2978 Malaysia 1-800-80-2335 — — New Zealand 0800-443988 — — Singapore 800-1101-150 — +65-6488-7525 Taiwan — +886-2-2514-2237 +886-2-2715-2923 Thailand 001-800-11-0032165 — —

Warranty Service

Call Center Toll-free Direct dial FAX

Asia/Pacific — +65-6485-3595 +65-6485-4860 Australia 1800-12-9277 — —

1. Authorized Service Center

66 Cheetah 10K.6 FC Product Manual, Rev. B

Cheetah 10K.6 FC Product Manual, Rev. B 67

Index

Numerics

12 volt

pins 56 3rd party reserve command 45 5 volt pins 56

Abort Sequence (ABTS) 37 abort task set function 37 AC coupling 56 AC power requirements 19 ACA active status 52 ACA active, faulted initiator status 52 Accept (ACC) 37 acoustics 29 active LED Out signal 56 Actual retry count bytes command 43 actuator 6

assembly design 5 adaptive caching 52 Address Discovery (ADISC) 37 addresses 53 air cleanliness 29 air flow 25, 34, 35

illustrated 35 air inlet 35 Alternate credit model 38, 41 altitude 26 ambient 26 ambient temperature 25, 34 ANSI documents

fibre channel 4

SCSI 4 arbitrated loop physical address (AL_PA) 33 arbitration 33 asynchronous event notification 52 audible noise 3 Australia/New Zealand Standard 4 auto write and read reallocation

programmable 6 automatic contingent allegiance 52 average idle current 19 average rotational latency 9

backpanel 55 backplane 57 basic link service frames 37 Basic_Accept (BA_ACC) 37 Basic_Reject (BA_RJT) 37 BB 38, 41 BB-Credit 38, 41 buffer

data 6

space 10 busy status 52 bypass circuit 15 Byte check command 44 bytes per surface 9 bytes per track 9

cache operation 10 cache segments 11 Caching parameters page (08h) command 43 caching write data 11 Canadian Department of Communications 3 capacity

formatted 7

unformatted 7, 9 case temperature 25 CF 38, 41 Change definition command 45 character sync 15 charge pins 56 check condition status 52 Class 3 parameters 38, 41 class B limit 3 Class valid 38, 41 clear ACA function 37 clear task set function 37 commands supported 43 Common features 38, 41 Compare command 44 Concurrent sequences 38 condensation 26 condition met/good status 52 connector

illustrated 54

requirements 54 continuous vibration 29 Continuously increasing offset 38, 41 Control mode page (0Ah) command 43 cooling 34 Copy and verify command 44 Copy command 43 CRC 15

error 13 CS 38 Current profiles 20 customer service 18

data block size

modifing the 7 data buffer to/from disc media 10 data heads

read/write 9 data rate

internal 9

68 Cheetah 10K.6 FC Product Manual, Rev. B

data transfer rate 10 data valid eye 61 Date code page command 43 DC power 55

requirements 19 defect and error management 31 deferred error handling 52 description 5 DEV_CTRL_CODE 60 device behavior page command 43 device control code values 60 device control codes 60 device identification page command 43 device selection IDs 33 devices 33 differential PECL input 61 dimensions 30 Disable page out command 44 disc rotation speed 9 Disconnect/reconnect control (page 02h) command

43 Download microcode and save modes (5) 44 Download microcode mode (4) 44 Download microcode with offsets and save mode (7)

44 Download microcode with offsets mode (6) 44 drive 29 drive active LED connection 33 drive characteristics 9 drive fault LED connection 33 drive ID 33 drive ID/option select headers 33 drive mounting 30, 35 drive orientation 34 drive select 55 driver signals 60 drivers and receivers 6 dual port support 42

electrical

description of connector 55 signal characteristics 60

specifications 19 electromagnetic compatibility 3 electromagnetic interference (EMI) 13 electromagnetic susceptibility 29 EMI 13 EMI requirements 3 enable bypass

port A 57

port B 57

signal 57

state 15 Enclosure Services interface 55 Enclosure services page command 44 environment 35

environmental

interference 13 limits 25

requirements 13 environmental control 29 error

detection mechanisms, FC 15

management 31

rates 13 error correction code

96-bit Reed-Solomon 6 Error recovery page (01h) command 43 extended link service

frames 37

reply frames 37 Extended sense command 43 Extent reservation command 45

fabric 41 Fabric Address Notification (FAN) 37 Fabric Login (FLOGI) 37 FAN 41 fault LED out signal 56 FC-AL

document 4

interface 33, 55

options supported 42

physical interface 53

SCA device connector, illustrated 54

selective reset 52 FCC rules and regulations 3 FCP

for SCSI, document 4

response codes 37

task management functions 37 FC-PH document 4 features 6

interface 37 Fibre Channel documents 4 Fibre Channel interface control page 43 Fibre Channel Interface Manual 1, 4 Fibre Channel Services 37 Field pointer bytes command 43 firmware 6

corruption 46 Firmware download option command 44 Firmware numbers page command 43 flawed sector reallocation 6 FLOGI

received on Port A 40

received on Port B 40 Force unit access command 44 form factor 6 format 33 Format command execution time 9 Format page (03h) command 43

Cheetah 10K.6 FC Product Manual, Rev. B 69

Format unit command 43 front panel 30 FS 38, 39, 41 function

complete, code 00 37 not supported, code 05 37 reject, code 04 37

Good status 52 gradient 26 ground shift noise 56 grounding 36

hard assigned arbitrated loop physical address

(AL_PA) 33 HDA 34, 35, 36 HDA case temperature 25 head and disc assembly. heads

read/write data 9 heat removal 34 heat source 35 host equipment 36 hot plugging the drive 15 humidity 26 humidity limits 25

See

HDA

IC 38 ID and configuration options 6 Implemented operating def. page command 43 Information exceptions control page (1Ch) command

43 Initiator control 38 Inquiry command 43 inquiry data 47 installation 33

guide 4

interface 33

commands supported 43 description 53 error rate 13 errors 13 illustrated 53 physical 53 requirements 37

interleave 6

minimum 10 intermediate/condition met/good status 52 intermediate/good status 52 Intermix 38, 41 internal data rate 9 internal defects/errors 31 internal drive characteristics 9

J1 connector 33 J6 connector 33, 34 Jumper settings page command 43 jumpers 33

latency

average rotational 9, 10 LBdata 45 LED driver signals 60 link rate 60 Link Service Reject (LS_RJT) 37 link services supported 37 Lock-unlock-cache command 44 Log select command 45 Log sense command 45 logic power 56 logical block address 11 logical block reallocation scheme 6 logical block size 6, 10 logical segments 11 Logout (LOGO) 37 loop 53, 57

disruption 15

initialization 33 loop position

FC-AL options 42 loop position report

FC-AL options 42 LS_RJT 38, 41 LSI circuitry 6

maintenance 13 maximum delayed motor start 19 maximum start current 19 mean time between failure (MTBF) 14 media description 6 minimum sector interleave 10 miscellaneous feature support

Adaptive caching 52

Asynchronous event notification 52

Automatic contingent allegiance 52

Deferred error handling 52

FC-AL selective reset 52

Parameter rounding 52

Queue tagging 52

Reporting actual retry count 52

Segmented caching 52

SMP = 1 in Mode Select command 52

Synchronized (locked) spindle operation 52

Zero latency read 52 miscellaneous status support

ACA active 52

ACA active, faulted initiator 52

70 Cheetah 10K.6 FC Product Manual, Rev. B

Busy 52 Check condition 52 Condition met/good 52 Good 52 Intermediate/condition met/good 52 Intermediate/good 52 Reservation conflict 52

Task set full 52 miscorrected media data 13 Mode select

(10) command 45

command 43 Mode sense

(10) command 45

command 43

data, table 47, 49, 50, 51 monitoring state 15 motor start

controls 57

option 10 mounting 35

holes 35

orientations 34 mounting configuration 30 mounting configuration dimensions 30 MTBF 13, 14, 25

defined 14

N_Port Login (PLOGI) 37

payload 38

payload values 39 NN 38, 41 Node Name 41 Node name 38 noise

audible 3 noise immunity 20 non-operating 26, 27, 29

temperature 26 non-operating vibration 29

office environment 29 old port state

FC-AL options 42 OPEN Full Duplex

FC-AL options 42 OPEN half duplex

FC-AL options 42 Open sequences per exchange 38 operating 26, 29 option configurations 33 option selection 55 options 7, 42 orientation 26 OS 38

out-of-plane distortion 35 overhead time

for head switch 10 for one track cylinder switch 10

P_LOGI

received on Port A 39

received on Port B 39 package size 27 package test specification 4 packaged 27 parameter rounding 52 pass-through state 15 PBC 53, 57 PBdata 45 PCBA 36 peak bits per inch 9 peak operating current 19 peak-to-peak measurements 20 PECL input 61 performance characteristics

detailed 9

general 10 performance degradation 27 performance highlights 6 physical damage 29 physical interface 53

description 53 physical specifications 19 PI 39, 40 pin descriptions 55 PN 38, 41 port bypass circuit 15, 53, 57 port bypass LED connection 33 Port DISCovery 38 Port Discovery (PDISC) 37 port identifier field 39, 40 port login 38

accept 39 Port Name 41 Port name (initiator’s) 38 power 56

dissipation 24

requirements, AC 19

requirements, DC 19

sequencing 20 Power control page (1Ah) command 43 power distribution 3 Prefetch command 44 prefetch/multi-segmented cache control 10 preventive maintenance 13 private loop

FC-AL options 42 Proc Assc 38 Process Accept (ACC) 39 Process Login (PRLI) 37, 39

Cheetah 10K.6 FC Product Manual, Rev. B 71

Process Login Accept (ACC) payload 39 process login payload data 39 Process Logout (PRLO) 37 public loop

FC-AL options 42

pull down resistor 57

queue tagging 52

radio interference regulations 3 Random relative offset 38, 41 RCD bit 11 Read buffer command 44 Read capacity command 44 Read combined header and data mode (0) 44 Read command 43 Read data mode (2) 44 Read defect data command 44 Read descriptor mode (3) 45 read error rates 13 Read extended command 44 Read Link Status (RLS) 37 Read long command 45 read/write data heads 9 Reassign blocks command 43 Receive buffer field size 38, 41 receive buffer field size 39 Receive diagnostic results command 43 receive eye

diagram 61 receivers 56 recommended mounting 28 recovered media data 13 reference

documents 4 Regenerate command 45 Register FC-4 Types (RFT_ID) 37 Relative address command 44 relative humidity 26 Release command 43 Released (10) command 45 reliability 6

and service 14

specifications 13 repair and return information 18 reporting actual retry count 52 Request sense command 43 reservation conflict status 52 Reserve command 43 Reserved (10) command 45 resonance 26 return information 18 Rezero unit command 43 Rigid disc drive geometry page

command 43

rotation speed 9 running disparity 15

safety 3 SCA part numbers 54 SCSI interface

commands supported 43 SCSI Interface Product Manual 3 Search data

equal command 44

high command 44

low command 44 Seek command 43 seek error

defined 13

rate 13 Seek extended command 44 seek performance characteristics 9 seek time

average typical 9

full stroke typical 9

single track typical 9 segmented caching 52 SEL ID 33

lines 57

standard feature 6 Self-Monitoring Analysis and Reporting Technology

7, 15 Send diagnostics page command 44 Sequential delivery 38, 41 service

life 13, 14 philosophy 14

tools 14 Service Options 41 Service options 38 Set limits command 44 shielding 3 shipping 18 shipping container 26 shock 26, 27

and vibration 26 shock mount 36 signal

characteristics 60

LED driver 60 single-unit shipping pack kit 7 SMART 7, 15 SMP = 1 in Mode Select command 52 SO 38, 41 spindle brake 6 Stacked connection req. 38, 41 standards 3 Start unit/stop unit command 43 start/stop time 10 support services 63

72 Cheetah 10K.6 FC Product Manual, Rev. B

Supported diagnostics pages command 43, 44 surface stiffness

allowable for non-flat surface 35 switches 33 Synchronize cache command 44 synchronized spindle

operation 52 system chassis 36

target reset function 37 task management functions 37

Abort task set 37

Clear ACA 37

Clear task set 37

Target reset 37

terminate task 37 task management response codes 37

Function complete 00 37

Function not supported 05 37

Function reject 04 37 task set full status 52 technical support services 63 temperature 25, 34

ambient 25

case 25

gradient 25

limits 25

non-operating 26

regulation 3

Seagate ST3146807FC, ST373307FC, ST336607FC User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

1.0 Scope

2.0 Applicable standards and reference documentation

2.1 Standards

2.1.1 Electromagnetic compatibility

2.1.1.1 Electromagnetic susceptibility

2.1.2 Electromagnetic compliance

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 and 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

4.2.2 Format command execution time (in minutes)

4.2.3 General performance characteristics

4.3 Start/stop time

4.4 Prefetch/multi-segmented cache control

4.5 Cache operation

4.5.1 Caching write data

4.5.2 Prefetch operation

4.5.3 Optimizing cache performance for desktop and server applications

5.0 Reliability specifications

5.1 Error rates

5.1.0.1 Interface errors

5.1.1 Environmental interference

5.1.2 Write errors

5.1.3 Seek errors

5.2 Reliability and service

5.2.1 Mean time between failure (MTBF)

5.2.2 Preventive maintenance

5.2.3 Service life

5.2.4 Service philosophy

5.2.5 Service tools

5.2.6 Hot plugging the drive

5.2.7 S.M.A.R.T.

5.2.8 Drive Self Test (DST)

5.2.8.1 DST Failure Definition

5.2.8.2 Implementation

5.2.8.2.1 State of the drive prior to testing

5.2.8.2.2 Invoking DST

5.2.8.2.3 Short and extended tests

5.2.8.2.4 Log page entries

5.2.8.2.5 Abort

5.2.9 Product warranty

6.0 Physical/electrical specifications

6.1 AC power requirements

6.2 DC power requirements

6.2.1 Conducted noise immunity

6.2.2 Power sequencing

6.2.3 Current profiles

6.3 Power dissipation

6.3.1 Temperature

6.3.2 Relative humidity

6.3.3 Effective altitude (sea level)

6.3.4 Shock and vibration

6.3.4.1 Shock

6.3.4.2 Vibration

6.3.5 Air cleanliness

6.3.6 Acoustics

6.3.7 Electromagnetic susceptibility

6.4 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