Seagate ST9146802SS, ST973402SS User Manual

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Savvio 10K.2 SAS

ST9146802SS ST973402SS

Savvio 10K.2 SAS

ST9146802SS ST973402SS

Publication number: 100384760, Rev. B

October 2006

Seagate Technology and the Wave logo are registered trademarks of Seagate Technology LLC in the

United States and/or other countries. Savvio is a registered trademark of Sea gate Technology LLC or one

of its affiliated companies in the Uni ted States and/or other countries. All other tradema rks or registered trademarks are the property of their respective owners. One gigabyte, or GB, equals one billion bytes when referring to hard dri ve capacity. Accessible capacity may v ary depending on operating env ironment and formatting. Quantitative us age exa mpl es for v ariou s app li ca tio ns are for il lus tr ativ e pur pos es. Ac tua l qua n tities will vary based on various factors, including file size, file format, features and application software.

Seagate reserves the right to change, without notice, product offerings or specifications.

Revision status summary sheet

Revision Date Notes

Rev. A 06/23/06 Initial release. Rev. B 10/23/06 None.

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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2.1.3 European Union Restriction of Hazardous Substances (RoHS) . . . . . . . . . . . . . 5

2.2 Reference documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

3.0 General description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

3.1 Standard features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

3.2 Media description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

3.3 Performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

3.4 Reliability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

3.5 Formatted capacities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

3.6 Programmable drive capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

3.7 Factory-installed accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

3.8 Factory-installed options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

4.0 Performance characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

4.1 Internal drive characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

4.2 Seek performance characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

4.2.1 Access time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

4.2.2 Format command execution time for 512-byte sectors (minutes) . . . . . . . . . . . 12

4.2.3 General performance characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

4.3 Start/stop time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

4.4 Prefetch/multi-segmented cache control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

4.5 Cache operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

4.5.1 Caching write data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

4.5.2 Prefetch operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

5.0 Reliability specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

5.1 Error rates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

5.1.1 Recoverable Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

5.1.2 Unrecoverable Errors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

5.1.3 Seek errors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

5.1.4 Interface errors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

5.2 Reliability and service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

5.2.1 Annualized Failure Rate (AFR) and Mean Time Between Failure (MTBF) . . . . 18

5.2.2 Preventive maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

5.2.3 Hot plugging the drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

5.2.4 S.M.A.R.T. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

5.2.5 Thermal monitor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

5.2.6 Drive Self Test (DST). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

5.2.7 Product warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

6.0 Physical/electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

6.1 AC power requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

6.2 DC power requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

6.2.1 Conducted noise immunity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

6.2.2 Power sequencing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

6.2.3 Current profiles. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

6.3 Power dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

6.4 Environmental limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

6.4.1 Temperature. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Savvio 10K.2 SAS Product Manual, Rev. B i

6.4.2 Relative humidity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

6.4.3 Effective altitude (sea level) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

6.4.4 Shock and vibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

6.4.5 Air cleanliness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

6.4.6 Corrosive environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

6.4.7 Acoustics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

6.4.8 Electromagnetic susceptibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

6.5 Mechanical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

7.0 Defect and error management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

7.1 Drive internal defects/errors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

7.2 Drive error recovery procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

7.3 SAS system errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

7.4 Background Media Scan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

7.5 Media Pre-Scan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

7.6 Deferred Auto-Reallocation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

7.7 Idle Read After Write . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

8.0 Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

8.1 Drive orientation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

8.2 Cooling. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

8.3 Drive mounting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

8.4 Grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

9.0 Interface requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

9.1 SAS features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

9.1.1 task management functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

9.1.2 task management responses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

9.2 Dual port support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

9.3 SCSI commands supported. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

9.3.1 Inquiry data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

9.3.2 Mode Sense data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

9.4 Miscellaneous operating features and conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

9.4.1 SAS physical interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

9.4.2 Physical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

9.4.3 Connector requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

9.4.4 Electrical description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

9.4.5 Pin descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

9.4.6 SAS transmitters and receivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

9.4.7 Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

9.5 Signal characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

9.5.1 Ready LED Out . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

9.5.2 Differential signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

10.0 Seagate Technology support services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

ii Savvio 10K.2 SAS Product Manual, Rev. B

List of Figures

Figure 1. Savvio 10K.2 SAS disc drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Figure 2. ST9146802SS current profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Figure 3. ST973402SS current profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Figure 4. ST9146802SS (3 Gbit) DC current and power vs. input/output operations per second . . . . . 29

Figure 5. ST973402SS (3 Gbit) DC current and power vs. input/output operations per second . . . . . . 29

Figure 6. Location of the HDA temperature check point . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Figure 7. Recommended mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Figure 8. Mounting configuration dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Figure 9. Physical interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Figure 10. Air flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Figure 11. Physical interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

Figure 12. SAS device plug dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

Figure 13. SAS device plug dimensions (detail) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

Figure 14. SAS transmitters and receivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

Figure 15. Receive eye mask . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

Figure 16. Reveive tolerance eye mask. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

Figure 17. Sinusoidal jitter mask . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

Figure 18. Compliance interconnect test load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

Figure 19. Zero-length test load. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

Figure 20. ISI loss example at 3.0 Gbps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

Figure 21. ISI loss example at 1.5 Gbps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70

Savvio 10K.2 SAS Product Manual, Rev. B iii

1.0 Scope

This manual describes Seagate Technology® LLC, Savvio® 10K.2 SAS (Serial Attached SCSI) disc drives. Savvio drives sup port the SAS Protoc ol specifications to the extent describ ed in this manual. The SAS Inter-

face Manual (part number 100293071) describes t he general SAS characteri stics of this and other Se agate SAS drives.

Figure 1. Savvio 10K.2 SAS disc drive

Savvio 10K.2 SAS Product Manual, Rev. B 1

2 Savvio 10K.2 SAS Product Manual, Rev. B

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 on its host equip ment to provide adequate power and e nvironment for optimum performa nce and compliance with appl icable i ndustry and g overnme ntal regulations. Special attention mu st be given in the areas of safety, power distribution, s hielding, audible n oise control, and temperature regulat ion. In particular, the drive must be securely mo unted to guar antee the spe cified pe rformance char acterist ics. Mountin g by bot tom holes must meet the requirements of Section 8.3.

2.1 Standards

The Savvio family complies with Seagate standards as noted in the appropriate sections of this manual and the Seagate SAS Interface Manual, part number 100293071.

The Savvio disc drive i s a UL recogni zed comp onent per UL1950 , CSA cert ified to CAN/ CSA C22.2 No. 95095, and VDE certified to VDE 0805 and EN60950.

2.1.1 Electromagnetic compatibility

The drive, as delivered , is designed for system integrati on and installation into a suitable encl osure prior to use. The drive is supplied as a suba ssembly and is not subject to Sub part 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. T he drive is ca pable of meeting the Cl ass B limits of the FCC Rules and Regulati ons of the Canadian Department of C omm uni ca tio ns whe n p ro per ly pack ag ed; howe ve r, it is the user’s responsibil ity to assure that the dri ve meets the approp riate EMI r equirements in thei r system. Sh ielded I/O c ables may be required if the enclosure does not prov ide adequate shie lding. If the I/O cables are external to the enc losure, shielded cables should be used, with the shields grounded to the enclosure and to the host controller.

2.1.1.1 Electromagnetic susceptibility

As a component a ssembly, the drive is not requ ired to meet any susc eptibi lity perfor mance requ irements. It is the responsibilit y of those integrating the dr iv e wit hin the ir s y ste ms to perform those tests req uire d a nd des ig n their system to ensure th at equipment operating in the same sy stem as the drive or external to the syste m does not adversely affect the performance of the drive. See Tables

Savvio 10K.2 SAS Product Manual, Rev. B 3

12 and 13, DC power requirements.

2.1.2 Electromagnetic compliance

Seagate uses an inde pendent laborato ry to confirm comp liance with the directives/standa rds for CE Markin g and C-Tick Marking. The drive was tested in a representative system for typical applications. The selected sys tem 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 co mplies with the European Union requirements of the El ectromagnetic Compatibility Directive 89 /336/EEC of 03 May 1989 as amend ed by Dir ective 92 /31/ EEC of 28 Apri l 1992 an d Directive 93/68/EEC of 22 July 1993.

Australian C-Tick

If this model has th e C-Tick Marking it complies with the Austr alia/New Zeal and Standard AS/NZS3548 199 5 and meets the Electromagnet ic Compatibility (EMC) Framework requi rements of Australia’s Spectrum Man agement 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 Electroma gnetic Compatibility Framework requirements of the Radio Research Laborator y (RRL) Ministry of Information and Communication Republic of Korea.

Taiwanese BSMI

If this model has t wo Chine se words meani ng “E MC ce rtifica tion” follo wed by an eig ht digi t identifi catio n n umber, as a Marking, it complies with Chinese National Standard (CNS) 13438 and meets the Electromagnetic Compatibility (EMC) Fra mework requ irements of the Taiwanese Bureau of Standards, Metrology, and Inspec tion (BSMI).

4 Savvio 10K.2 SAS Product Manual, Rev. B

2.1.3 European Union Restriction of Hazardous Substances (RoHS)

The European Union Restriction of Hazardous Substances (RoHS) Directive restricts the presence of chemical substances, including Lead (Pb), in electronic products effective July 2006.

A number of parts and materials in Seagate products are procured from external suppliers. We rely on the representations of our suppl iers regarding the presence of RoHS substances in these parts and materials . Our supplier contracts r equire compliance with our chem ical substance restrictions, a nd our suppliers document their compliance with our requirements by providing material content declarations for all parts and materials for the disc drives documented in this publication. Current supplier declarations include disclosure of the inclusion of any RoHS-regulated substance in such parts or materials.

Seagate also has internal systems in place to ensure ongoing compliance with the RoHS Directive and all laws and regulations which restrict chemical content in electronic products. These systems include standard operat ing procedures that en sure that res tricted substa nces ar e not util ized in our m anufact uring ope ratio ns, la bora tory analytical validation testing, and an internal auditing process to ensure that all standard operating procedures are complied with.

2.2 Reference documents

Savvio 10K.2 SAS Installation Guide

Seagate part number: 100384761

SAS Interface Manual

SCSI Commands Reference Manual

ANSI SAS Documents

ANSI Small Computer System Interface (SCSI) Documents

Specification for Acoustic Test Requirement and Procedures

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.

Seagate part number: 100293071

Seagate part number: 100293068

SFF-82232.5” Drive Form Factor with Serial Connector SFF-8460HSS Backpla ne Design Gui deline s SFF-8470Multi Lane Copper Connector SFF-8482SAS Plug Connector ANSI INCITS.xxx Serial Attached SCSI (SAS) Standard (T10/1562-D) ISO/IEC 14776-xxxSCSI Architecure Model-3 (SAM-3) Standard (T10/1561-D) ISO/IEC 14776-xxxSCSI Primary Commands-3 (SPC-3) Standard (T10/1416-D) ISO/IEC 14776-xxxSCSI Block Commands-2 (SBC-2) Standard (T10/1417-D)

X3.270-1996(SCSI-3) Architecture Model

Seagate part number: 30553-001

Savvio 10K.2 SAS Product Manual, Rev. B 5

6 Savvio 10K.2 SAS Product Manual, Rev. B

3.0 General description

Savvio drives combine giant magnetoresistive (GMR) heads, partial response/maximum likelihood (PRML) read channel electroni cs, e mbedded servo te chnol ogy, and a Serial Attached SCSI (SA S) inter face t o provid e high performance, h igh c apaci ty d ata s tor age f or a v ari ety o f sy st ems inc l uding engineering workstatio ns , n et work servers, mainframes, and supercomputers. The Serial Attached SCSI interface is designed to meet nextgeneration computing demands for performance, scalability, flexibility and high-density storage requirements.

Savvio drives are random acc ess storage d evices designe d to support the Serial Attached SCSI Protoc ol as described in the ANSI spec ifications , this documen t, and the SAS Inte rface Manual ( part number 1002930 71) which describes the general interface characteristics of this drive. Savv io drives are classified as intelligent peripherals and provide level 2 confo rm ance ( hig hes t lev el) with the A NSI SC SI- 1 s tandard. Th e SA S connec tors, cables and elec trical interface are com patible with Serial ATA (SATA), giving future us ers the choice of populating their systems with either SAS or SATA hard disc drives. This allows you to continue to leverage your existing investment in SCSI while gaining a 3Gb/s serial data transfer rate.

The head and disc assembly (HD A) is sealed at the factory. A ir recirculates within the HDA through a nonreplaceable filter to maintain a contamination-free HDA environment.

Note. Never disassemb le the HDA and do not attempt to se rvice items in the sealed enclosure (heads,

media, actuator, etc.) as this requires special facilities. The drive does not contain user-replaceable parts. Opening the HDA for any reason voids your warranty.

Savvio drives use a de dica ted land ing zo ne at the inne rmost radi us of the media to elimi nate the possibi lity 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 h andling. The shipping lock disengages and th e head load process be gins when power is applied to the drive.

Savvio 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.

Savvio 10K.2 SAS Product Manual, Rev. B 7

3.1 Standard features

Savvio drives have the following standard features:

• Perpendicular recording technology

• 1.5 / 3 Gbit Serial Attached SCSI (SAS) in terface

• Integrated dual port SAS controller supporting the SCSI protocol

• Support for SAS expanders and fanout adapters

• Firmware downloadable using the SAS interface

• 128 - deep task set (queue)

• Supports up to 32 initiators

• Jumperless configuration.

• User-selectable logical block size (512 to 528 bytes per logical block) in any multiple of 4 bytes.

• Industry standard SFF 2.5-inch dimensions

• Programmable logical block reallocation scheme

• Flawed logical block reallocation at format time

• Programmable auto write and read reallocation

• Reallocation of defects on command (Post Format)

• ECC maximum burst correction length of 320 bits

• No preventive maintenance or adjustments required

• Dedicated head landing zone

• Embedded servo design

• Automatic shipping lock

• Self diagnostics performed when power is applied to the drive

• Zone bit recording (ZBR )

• Vertical, horizontal, or top down mounting

• Dynamic spindle brake

• 16 Mbyte data buffer (see Section 4.5).

• Drive Self Test (DST)

• Background Media Scan (BGMS)

• Idle Read After Write (IRAW)

•Power Save

3.2 Media description

The media used on the drive has an alumi num sub st rat e co ated with a thin fi lm magn eti c mater ia l, over coate d with a proprietary protective layer for improved durability and environmental protection.

3.3 Performance

• Programmable multi-segmentable cache buffer

• 300 Mbytes/sec maximum instantaneous data transfers.

• 10k RPM spindle. Average latency = 3.0 msec

• Background processing of queue

• Supports start and stop commands (spindle stops spinning)

• Adaptive seek velocity; improved seek performance

8 Savvio 10K.2 SAS Product Manual, Rev. B

3.4 Reliability

• Annualized Failure Rate (AFR) or 0.55%

• Mean time between failures (MTBF) of 1,600,000 hours

• Balanced low mass rotary voice coil actuator

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

• 5-year warranty

3.5 Formatted capacities

Standard OEM models are formatted to 512 bytes per block. The block size is sele ctable at format time an d must be a multiple of 4 by tes. Users having the necessary equi pment may modify the data block size before issuing a format command and obtain different formatted capacities than those listed.

To provide a stable target capacity environment and at the same time provide users with flexibility if they choose, Seagate recommends product planning in one of two modes:

1. Seagate designs spe ci fy c apacit y p oints at c ertain b loc k siz es that Seagate guarantee s curr ent and future products will meet. We recommend custo mers use this capacity in their project pl anning, as it ensures a stable operating point with backw ard and forward c ompatibi lity from gener ation to generati on. The curren t guaranteed operating points for this product are:

Capacity (Blocks)

ST9146802SS ST973402SS

Sector Size

Decimal Hex Decimal Hex

512 286749488 11177330h 143374744 88BB998h 520 280790192 10BC84B0h 140395096 85E4258h 524 275154368 106685C0h 137577184 83342E0h 528 272662936 10408198h 136331468 82040CCh

2. Seagate drives als o m ay be u se d at the max im um av ail ab le c apaci ty at a gi ve n bl ock si ze , but the excess capacity above the gua rantee d l ev el wi ll v ar y between other drive fami lies an d f ro m g ene ra tio n to ge ner a tion, depending on how eac h block size actually formats out for zo ne frequencies and splits over servo bursts. This added capaci ty potent ial may range from 0.1 to 1.3 percent above th e guarant eed capacities listed above. Us ing th e dr ives in th is mann er gi ves the ab so lute m aximu m capacity poten tial, but the user must determine if the extra ca pacity potential is useful, or whether their assurance of backward and for ward compatibility takes precedenc e.

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 SAS Interface Manual, part numb er 100293 071. A valu e 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 z er o a nd less tha n t he maximum number of L BA s in the Num ber of B lo ck s fi eld c han ges the tota l d rive capacity to the v al u e in t h e N umb er o f Bl o cks f ie l d. A v al u e gr ea t e r t h an t h e m ax im u m num be r of LBAs is rounded down to the maximum capacity.

3.7 Factory-install ed accessories

OEM standard drives are shipped with the Savvio 10K.2 SAS Installation Guide (part number 100384761).

Savvio 10K.2 SAS Product Manual, Rev. B 9

3.8 Factory-install ed options

You may order the following items w hich are incorporated at th e manufacturing facility du ring 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 protec tion 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 Savvio 10K.2 SAS Installation Guide, part number 100384761, is us ually include d with each standar d 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.

10 Savvio 10K.2 SAS Product Manual, Rev. B

4.0 Performance characteristics

This section provides detailed information concerning performance-related characteristics and features of Savvio drives.

4.1 Internal drive characteri stics

ST9146802SS ST973402SS

Drive capacity 146.8 73.4 Gbytes (formatted, rounded off value) Read/write data heads 4 2 Bytes per track 489,984 489,984 Bytes (average, rounded off values) Bytes per surface 36,704 36,704 Mbytes (unformatted, rounded off value) Tracks per surface (total) 75,373 75,373 Tracks (user accessible) Tracks per inch 150,000 150,000 TPI (average) Peak bits per inch 925,000 925,000 BPI Areal density 135 135 Gbit/in Internal data rate 660-1054 660-1054 Mbits/sec (variable with zone) Disc rotation speed 10k 10k rpm Avg rotational latency 3.0 3.0 msec

4.2 Seek performance characteristics

See Section 9.4.1, "SAS physical interface" on page 56 and the SAS Interface Manual (part number

100293071) for additional timing details.

4.2.1 Access time

Including controller overhead (msec)

1, 2

Not including controller overhead (msec)

Read Write Read Write

Average Typical Single track Typical Full stroke Typical

3,4

4.0 4.6 3.8 4.4

0.4 0.6 0.2 0.4

8.17 8.76 7.97 8.56

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

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

3. Typical access times are measured under nominal conditions of temperature, voltage, and horizontal orientation as measured on a representative sample of driv es.

4. Access time = controller overhead + average seek time and applies to all data transfer commands. Access to data = access time + latency time.

Data sheet data except full stroke which was Gen 2.0 data.

1,2

Savvio 10K.2 SAS Product Manual, Rev. B 11

4.2.2 Format command execution time for 512-byte sectors (minutes)

ST9146802SS ST973402SS

Maximum (with verify) Maximum (without veri fy )

104 52

70 35

4.2.3 General performance characteristics

Minimum sect or interleave 1 to 1 Data buffer to/from disc media (one 512-byte logical block)* 82 to 132 MBytes/sec Sustained transfer rate 55 to 89 Mbytes/sec SAS Interface maximum instantaneous transfer rate 300 Mbytes/sec* per port

Logical block sizes Default is 512-byte data blocks

Variable 512 to 528 bytes per sector in evenly divisible by 4 number of bytes per sector (512, 516, 520, 524, or 528). If n (number of bytes per sector is not divisi-

ble by 4, the next lowest number that is devisible by 4 will be used. Read/write consecutiv e sectors on a track Yes Flaw reallocation performance impact (for flaws reallocated at format time using the

spare sectors per sparing zone reallocation scheme.) Average rotation al lat enc y 3.0 msec

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

(dual port = 600 Mbytes/sec*)

Negligible

12 Savvio 10K.2 SAS Product Manual, Rev. B

4.3 Start/stop time

The drive accepts the comma nds list ed in the SAS Inte rface Man ual less than 3 seconds after DC power has been applied.

If the drive receives a NOTIFY (ENABLE SPINUP) primitive through either port and has not received a START STOP UNIT command with the START bit equal to 0, the drive becomes ready for normal operations within 20 seconds (excluding the error recovery procedure).

If the drive receives a START STOP UNIT command with the START bit equal to 0 before receiving a NOTIFY (ENABLE SPINUP) primitive, the drive waits for a START STOP UNIT command with the START bit equal to 1. After receiving a START STOP UNIT command with the START bit equal to 1, the drive waits for a NOTI FY (ENABLE SPINUP) primit ive. After receiving a NOTIFY (ENA BLE SPINUP) primitive throu gh either port, the drive becomes ready for normal operations within 20 seconds (excluding the error recovery procedure).

If the drive receives a START STOP UNIT command with the START bit and IMMED bit equal to 1 and d oes not receive a NOTIFY (ENABL E SPINUP) primitive within 5 seco nds, the drive fails the START STOP UNIT command.

The START STOP UNIT command may be used to command the drive to stop the spindle. Stop time is 20 seconds (maximum) from re moval of DC power. SCSI stop time is 20 se conds. There is no power control swi tch on the drive.

4.4 Prefetch/multi-segmented cache control

The drive provides a prefetch ( read look-ahead) and multi-se gmented cache control algori thms that in many cases can enhan ce system performance. Cac he refers to the drive buffer stor age space when it is used in cache operations . To select this feature, the host se nds the Mode Select com mand 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 dis abled indepe ndently using the Mode Select c ommand; however, in actual opera tion, the prefetch feature overlaps cache operation somewhat as described in sections 4.5.1 and 4.5.2.

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

19.

4.5 Cache operation

Note. Refer to the SAS Interface Manual for more detail concerning the cache bits.

Of the 16 Mbytes physical buffer space in the drive, approximately 13,000 kbytes can be used as a cache. The buffer is divided into logical segments from which data is read and to which data is written.

The drive keeps track of the logical block addresses of the data stor ed in each segment of the buffer. If the cache is enabled (see RCD bit in the SAS Interface Manual is retrieved from the buffer, if possible, before any disc access is initiated. If cache operation is not enabled, the buffer is still used, but only as circular buffer segments during disc medium read operations (disregarding Prefetch operation fo r the moment). That is, the dr iv e d oes not check in the buffer se gme nts 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. All data transfers to the host are in accordance with buffer-full ratio rules. See the explanation provided with the information about Mode Page 02h (disconnect/reconnect control) in the SAS Interface Manual.

The following is a simplified description of the prefetch/cache operation: Case A—read command is received and all of the requested logical blocks are already in the cache:

1. Drive transfers the requested logical blocks to the initiator.

), data requested by the host with a read command

Savvio 10K.2 SAS Product Manual, Rev. B 13

Case B—A Read command r equests data, and at least one requested logical block is not in any segment of the cache:

1. The drive fetches th e requested logical blocks f rom the dis c and trans fers them into a se gment, 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.

Each cache se gment is actually a s elf-contained circula r buffer whose length is an integer number of logical blocks. The drive dynam ic ally cr ea tes and remo ves segments based on the workload. The wrap-around capa bility of the individual segments greatly enhances the cache’s overall performance.

Note. The size of each s egment 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 segm ent . Se ndi ng a siz e specification using the Mode Select command (byt es 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 driv e respon ds 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 th at mak es use of a drive buffer sto ra ge 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 s ame buffer space an d segme ntation is use d as set up for read func tions. The buffer segmentation s cheme is set up or changed independently, having nothing to do with the state of RCD. When a write command is issued, i f RCD=0, the cache is first checke d to see if any logical blocks tha t are to be written are a lready stored in the cache f rom a previous read or write comman d. 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 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 befor e the data has been written to the medium. If an error oc curs while writing the data to the medium, and Good status has already been returned, a deferred error will be gen erated.

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 19 shows the mode default settings for the drive.

4.5.2 Prefetch operation

If the Prefetch fea ture i s ena bl ed, data in co nti guo us lo gic al b lock s on t he d is c immediately beyond tha t whi ch was requested by a Read c ommand are retrieved and stored in the buffer for immediate transfer from the buffer to the host on subseque nt Read com mands that request t hose logica l block s (this is tr ue 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 Prefet ch, use Mode Select page 08h , byte 12, bit 5 (Disable Read Ahead - DRA bit). DRA bit = 0 enables prefetch.

The drive does not use the Max Prefetch field (bytes 8 and 9) or the Prefetch Ceiling field (bytes 10 and 11).

14 Savvio 10K.2 SAS Product Manual, Rev. B

When prefetch (read look -ahead) is enabled ( enabled by DRA = 0), t he drive enables prefe tch of contiguous blocks from the disc when it senses that a prefetch hit will likely occur. The drive disables prefetc h when it decides that a prefetch hit is not likely to occur.

Savvio 10K.2 SAS Product Manual, Rev. B 15

16 Savvio 10K.2 SAS Product Manual, Rev. B

5.0 Reliability specifications

The following reli ability specifica tions assume co rrect host and drive operational interfa ce, including al l interface timings, power supply voltages, environmental requirements and drive mounting constraints.

Seek error rate: Less than 10 errors in 108 seeks Read Error Rates

Recovered Data Less than 1 error in 1012 bits transferred (OEM default settings ) Unrecovered Data Less than 1 sector in 1016 bits transferred

Miscorrected Data Less than 1 sector in 1021 bits transferred Interface error rate: Less than 1 error in 1012 bits transferred Mean Time Between Failure (MTBF): 1,600,000 hours Annualized Failure Rate (AFR): 0.55% 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 p ower as defined in paragraph 6.2, "DC power requirements."

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

• Assume random data.

• Default OEM error recovery settin gs are applied. This includes AWRE, ARRE, full read retries, full write retries and full retry time.

5.1.1 Recoverable Errors

Recovereable errors are those detected and corrected by the drive, and do not require user intervention. Recoverable Data errors will use co rrection, although ECC on -the-fly is not c onsidered for purposes of recov-

ered error specifica tio ns. Recovered Data error rate is determine d using read bits transfer red for recove rable errors occurring dur ing a

read, and using write bits transferred for recoverable errors occurring during a write.

5.1.2 Unrecoverable Erro rs

An unrecoverable data erro r is defined as a fail ure of the drive to rec over data from the me dia. These errors occur due to head/medi a or write problems . Unrecoverable data errors are only detected du ring read opera tions, but not caused by the r ead. If an unrec overable data erro r is detected, a ME DIUM ERROR (03 h) in the Sense Key will be reported. Mul tipl e unrec ov erab le da ta errors resul tin g fro m the sa me c ause ar e tre ated as 1 error.

Savvio 10K.2 SAS Product Manual, Rev. B 17

5.1.3 Seek errors

A seek error is defined as a fail ur e of the dr i ve to pos it ion the heads to the addressed t rack . After dete cti ng a n initial seek error, the drive automatically performs an error recovery process. If the error recovery process fails, a seek positioning error (Error code = 15h or 02h) will be reporte d with a Hardware error (04h) in t he Sense Key. Recoverable seek erro rs are sp ecified at Le ss than 10 errors in 10

seeks. Unrecoverable seek errors

(Sense Key = 04h) are classified as drive failures.

5.1.4 Interface errors

An interface error is defin ed as a failure of the receiver on a port to recover the d ata 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.

5.2 Reliability and service

You can enhance the reliability of Savvio disc drives by ensuring that the drive receives adequate cooling. Section 6.0 provides temperature measurements and other information that may be used to enhance the s ervice life of the drive. Section 8.2 provides recommended air-flow information.

5.2.1 Annualized Failure Rate (AFR) and Mean Time Between Failure (MTBF)

The production disc drive shall achieve an AF R of 0.55% (MTBF of 1,600,000 ho urs) when operated in an environment that ensures the HDA case temperatures do not exceed the values specified in Section ation at case temperatures outside the specifications in Section 6.4 may increase the product AFR (decreas e the MTBF). The AFR (MTBF) is a population statistic not relevant to individual units.

6.4. Oper-

The AFR (MTBF) specific ation is based on the following assumptions for Business Critical Storage System environments:

• 8,760 power-on hours per year.

• 250 average on/off cycles per year.

• Operations at nominal voltages.

• Systems will provid e adequate cooling to ensure the ca se temperatures specified in Sect ion 6.4 are not exceeded. Temperatures outside the specifications in Section 6.4 will increase the product AFR and decrease the MTBF.

5.2.2 Preventive maintenance

No routine scheduled preventive maintenance is required.

5.2.3 Hot plugging the drive

When a disc is powered on by switchin g the powe r or hot plugged, the drive run s a self test befor e attemp ting to communicate o n its’ interfaces. When the self test co mpletes successfull y, the drive initiate s a Link Reset starting with OOB. An attached devic e should respond to the link rese t. If the link reset attempt fails, or any time the drive looses sync, the drive initiated l ink reset. The drive will i nitiate link reset once p er second but alternates between por t A and B. Therefor e each port will atte mpt a link reset on ce per 2 seconds assuming both ports are out of sync..

If the self-test fails, the drive does not respond to link reset on the failing port. Note. It is the respon sibi li ty o f the sy s tems in teg ra tor to a ss ur e th at no tem per atu re, energy, voltage haz-

ard, or ESD potential haza rd is presented dur ing the hot connect/di sconnect oper ation. 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.

18 Savvio 10K.2 SAS Product Manual, Rev. B

5.2.4 S.M.A.R.T.

S.M.A.R.T. is an acronym for Se lf-Moni toring Ana lysis and Repor ting Technology. This techn ology is inte nded to recognize conditio ns that indicate imminent drive failure and is desig ned to provide sufficient warn ing 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 a ttrib ute has b een sele cted to moni tor a specifi c se t of fai lure c onditi ons in th e oper ating per formance 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 th e DEXCPT bit to ena ble or disab le the S.M.A.R. T. feature. Setting the DE X CPT 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 consi dered to be in “On-line Mod e Only” and will not perform off-line functions.

You ca n measure off-line a ttributes and f orce the drive to save the data by u sing 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 c ontrol when S.M.A.R.T. inter ruptions occur. Forcing S.M.A.R.T. with the RTZ command resets the timer.

Performance impact

S.M.A.R.T. attr ibute data is saved to the disc so that the events that caused a predic tive failure can be recreated. The drive measures and saves paramete rs once every two hour s subject to an idle pe riod on the drive interfaces. The pro cess o f meas uring off-line attribute data a nd sa ving data to th e disc is u ninterr uptable. Th e 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

220 milliseconds

Fully-enabled delay DEXCPT = 0, PERF = 0

455 milliseconds

Savvio 10K.2 SAS Product Manual, Rev. B 19

Reporting control

Reporting is controlled by the MRIE bits in the Inform ational Exceptio ns Control mode page (1Ch). Subject to the reporting metho d, t he firmw are w ill is sue to the h ost a n 0 1-5Dxx sense code. The error code is pr eserve d 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 attribu te. The in terval de fine s the numb er of operati ons over which to mea sure 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 an d their inte rval. If the nu mber of error s exceed s the thr eshold bef ore the interval expires, the error rate i s considered to be unacc eptable. 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 inter val and failure counters are reset and the process starts over.

Predictive failures

S.M.A.R.T. sig nals predi ctiv e failures w hen the drive is performi ng unaccep tably for a period of tim e. The fir mware keeps a running count of the number of times the error rate for each attribute is unacceptable. To accomplish this, a cou nter is i ncremen ted each time the error rat e is un acceptable and decr emented (not to e xceed zero) whenever t he error ra te is a cceptabl e. If the co unter contin ually in crem ents such that it reache s the pr e dictive threshol d, a predictive failure is signaled. This counter is r eferred to as the Failure H istory Counter. There is a separate Failure History Counter for each attribute.

5.2.5 Thermal monitor

Savvio drives implement a temperature warning system which:

1. Signals the host if the temperature exceeds a value which would threaten the drive.

2. Signals the host if the temperature exceeds a user-specified value.

3. Saves a S.M.A.R.T. data frame on the drive which exceeds the threatening temperature value.

A temperature sensor monito rs the drive temperature and is sues a warning over the int erface when the temperature exceeds a s et threshol d. The temper ature is measured at power-up an d then at te n-minute intervals after power-up.

The thermal monitor syste m generates a warn ing code of 01- 0B01 when the temp erature exceeds th e specified limit in compl iance with the SCSI standard. T he drive temperature is repo rted in the FRU code field o f mode sense data. You can use this information to determine if the warning is due to the temperature exceeding the drive threatening temperature or the user-specified temperature.

This feature is controlled by the Enable Warning (EWasc) bit, and the reporting mechanism is controlled by the Method of Reporting Informational Exceptions field (MRIE) on the Informational Exceptions Control (IEC) mode page (1Ch).

The current algorithm impl ements two temperature trip points. The first trip point is set at 65°C which is the maximum temperatur e limit a ccordi ng to th e dri ve spec ific ation. Th e seco nd trip point is us er-se lectable using the Log Select com mand. The reference tempe rature parameter in the tem perature log page (see Table

11)

20 Savvio 10K.2 SAS Product Manual, Rev. B

can be used to set this trip point. The default value for this drive is 65°C, however, you can set it to any value in the range of 0 to 65°C. If you s pec i fy a temp erature greater than 65°C in this fie ld, the te mpe ra ture i s rou nde d down to 65°C. A sense code is sent to the host to indicate the rounding of the parameter field.

Table 11: Temperature Log Page (0Dh)

Parameter Code Description

0000h 0001h

Primary Temperature Reference Temperature

5.2.6 Drive Self Test (DST)

Drive Self Tes t (DST) is a technology des igned to recognize drive faul t conditions that qualify the dr ive 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 s hort test is time-r estricted and limited i n length—it does n ot scan the entire media surface, but does some fundamental tests and scans portions of the media.

If DST encounters an er ror during either of these tests, i t reports a fault condition. If the driv e fails the test, remove it from service and return it to Seagate for service.

5.2.6.1 DST failure definition

The drive will presen t a “diagnostic failed” con dition through the self-te sts results value of the diagnos tic log page if a functional failur e is enco untered du ring DST. The channel and servo parameters are not mod ified to test the drive more strin gently, and the number of retries are not redu ced. All retries and recovery proce sses 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.

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.

5.2.6.2 Implementation

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

Savvio 10K.2 SAS Product Manual, Rev. B 21

5.2.6.2.1 State of the drive prior to testing

The drive must be in a ready state before issuing the Send Diagno stic command . There are multipl e 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.

5.2.6.2.2 Invoking DST

To invoke D ST, submit the Send Diagnostic command with th e appropria te Funct ion Code (001b for the sh ort test or 010b for the extended test) in bytes 1, bits 5, 6, and 7.

5.2.6.2.3 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 th ree s egm ents: a n el ec tric al test segm ent, a servo test segment , and a rea d/v er ify s ca n

segment.

Short test (Function Code: 001b)

The purpose of the short test is to provide a time-l imit ed te st tha t t e sts as m uch of the drive as possible within 120 seconds. The shor t test does not scan the entire me dia surface, but does some fu ndamental 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 tes t the pos it ion ing mec han ism. T he read op erati on tes ts the read hea d ele men t and the media surface. The write element is tested throu gh read/write/read operations. The inte grity of the media is checked through a r ead/verif y scan of the med ia. Motor functio nality is tested by d efault as a part of these tests.

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

22 Savvio 10K.2 SAS Product Manual, Rev. B

5.2.6.2.4 Log page entries

When the drive begi ns DST, it creates a new entry in the Self -te st Resul ts Log page . The new entr y is c reated by inserting a new self-test parameter block at the beginning of the self-test results log parameter section of the log page. Existing da ta will be moved to make room f or the new parameter block. The dr iv e rep or ts 20 par am eter 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 dr i ve upda tes the Sel f- Test Results Value field in its Se lf-

Test Results L og page i n n on- vola til e m emory. The host may use Log Se ns e to re ad th e r esul ts from up to th e 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 set to zero, the drive passed with no errors detected by the DST. If the field is not set to zero, the test failed for the reason reported in the field.

The drive will report th e failure condition and LBA (i f applicable) in the Self-tes t Results Log parameter. The Sense key, ASC, ASCQ, and FRU are used to report the failure condition.

5.2.6.2.5 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 ex ecuting in b ackground m ode by us ing the abort c ode in the DS T Functio n Code field. This will cause a 01 ( self-test aborted b y the application cl ient) code to appear i n the self-test results v alues log. All other abort mechanisms will be reported as a 02 (self-test routine was interrupted by a reset condition).

5.2.7 Product warranty

Beginning on the da te of shipment to the customer and contin uing for the period spe cified in your purchas e contract, Seagate wa rra nts that e ach pro duct (i nclud ing com pon ents and su basse mblie s) that fails t o fu nction properly under normal use due to defect in materials or workmanship or due to nonconformance to the applica ble specifications will be repaired or replaced, at Seagate’s option and at no charge to the customer, if returned by customer at cus tomer’s expense to S eagate’s designated facility in ac cordance with Seagate’s warranty procedure. Seagate will pay for tr an sp or tin g th e repa ir or rep lac em ent ite m t o th e c us tome r. For more detailed warranty information, refer to the standard terms and conditions of purchase for Seagate products on your pur chase documentation.

The remaining warranty for a particular drive can be determined by calling Seagate Customer Service at 1-800-468-3472. You can also determine remain ing war ranty using the Seagate web site (www.seagate.com). The drive serial number is required to determine remaining warranty information.

Shipping

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

Seagate repair centers may refus e rece ipt of compo nents impro perly packaged or obviou sly damag ed in transit. Contact your author ized Seag ate distr ibutor to purchas e additio nal boxe s. Seagat e recom mends sh ipping by an air-ride carrier experienced in handling computer equipment.

Savvio 10K.2 SAS Product Manual, Rev. B 23

Product repair and return information

Seagate customer se rvice centers are th e only facilities au thorized to service Sea gate drives. Seagate d oes not sanction any third-party repair fac ilities. Any unauthorized repair or tamper ing with the factory seal voids the warranty.

24 Savvio 10K.2 SAS Product Manual, Rev. B

6.0 Physical/electrical spe cifications

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 requi rements for a single drive are shown below. Values indicated apply at the drive connector.

Table 12: ST9146802SS DC power requirements

ST9146802SS

1.5 Gbit mode

Notes

Voltage +5V +12V [2] +5V +12V [2] Regulation [5] ±5% ±5% [2] ±5% ±5% [2] Avg idle current DCX [1] [7] 0.79 0.15 0.77 0.15 Maximum starting current

(peak DC) DC 3σ [3] 0.87 1.59 0.85 1.59

(peak AC) AC 3σ [3] 1.22 2.01 1.43 2.02 Delayed motor start (max) DC 3σ [1] [4] 0.65 0.02 0.68 0.03 Operating current: Typical DCX [1] [6] 0.76 0.37 0.79 0.39 Maximum DC 3σ [1] 0.78 0.40 0.83 0.43 Maximum (peak) DC 3σ 1.34 1.19 1.41 1.21

Gen 3.5 LPSS measured data (latest available) plus 12V max start current margins of .15A for DC and .20A for AC. All others have 10% margin added.

(Amps) (Amps) (Amps) (Amps)

ST9146802SS

3.0 Gbit mode

Savvio 10K.2 SAS Product Manual, Rev. B 25

Table 13: ST973402SS DC power requirements

ST973402SS

1.5 Gbit mode

Notes

Voltage +5V +12V [2] +5V +12V [2] Regulation [5] ±5% ±5% [2] ±5% ±5% [2] Avg idle current DCX [1] [7] 0.81 0.13 0.79 0.12 Maximum starting current

(peak DC) DC 3σ [3] 0.88 1.38 0.87 1.38

(peak AC) AC 3σ [3] 1.25 1.91 1.36 1.91 Delayed motor start (max) DC 3σ [1] [4] 0.66 0.03 0.69 0.03 Operating current: Typical DCX [1] [6] 0.65 0.31 0.81 0.34 Maximum DC 3σ [1] 0.79 0.37 0.84 0.39 Maximum (peak) DC 3σ 1.41 1.17 1.43 1.17

Gen 3.5 LPSS measured data (latest available) plus 12V max start current margins of .15A for DC and .20A for AC. All others have 10% margin added.

(Amps) (Amps) (Amps) (Amps)

ST973402SS

3.0 Gbit mode

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

ues. Power supply at nominal voltage. N (number of drives tested) = 6, 35 Degrees C ambient.

[2] For +12 V, a –10 % tol er an ce is allowed during initi al sp in dle s tart but must return to ±5% before reaching

9,936 RPM. The ±5% must be maintained after the d rive signifies t hat 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 2. [4] This condition occurs after OOB and Speed Negotiati on completes but befor e the driv e has rec eived th e

Notify Spinup primitive.

[5] See paragraph 6.2.1, "Conducted noise immunity." Specified voltage tolerance includes r ip ple , nois e, an d

transient response.

[6] Operating condition is defined as random 8 block reads. [7] During idle, the drive he ads are relocated eve ry 60 seconds to a r andom location within the band from

three-quarters to maximum track.

General DC power requirement notes.

1. Minimum current l oading fo r each sup ply voltage is not les s than 1. 7% of the ma ximum o perating current shown.

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

3. Where power is provided to multiple drives from a common supply, careful consideration for individual drive power requirem ents s hou ld b e no ted. Whe re mul ti ple uni ts are pow er ed o n s imu ltaneou sl y, 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.

26 Savvio 10K.2 SAS Product Manual, Rev. B

6.2.1 Conducted noise immunity

Noise is specified a s a periodic an d random distri bution of frequenc ies covering a band from DC to 10 MHz. Maximum allowed no ise values given below are peak-to -peak measurements and apply at the dr ive 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 sequenci ng. The drive prote cts against inadver tent writing dur ing power-up and down.

6.2.3 Current profiles

The +12V and +5V current profiles for the ST9146802SS and ST973402SS models are shown below.

Figure 2. ST9146802SS current profile

Savvio 10K.2 SAS Product Manual, Rev. B 27

Figure 3. ST973402SS current profile

Note: All times and currents are typical. See Tables 12 and 13 for maximum current requirements.

28 Savvio 10K.2 SAS Product Manual, Rev. B

6.3 Power dissipation

ST9146802SS in 3 Gbit operation

Typical power dissipation under idle conditions in 3Gb operation is 5.18 watts (17.68 BTUs per hour). To obtain operating power for typical random re ad operations , refer to the following I/O rate curve (see Figure

4). Locate the typica l I/O rate for a drive i n your sys tem on the h orizontal axi s and read th e corres ponding + 5 volt current, +12 vol t cur r ent, and total wa tts on the v erti ca l a xis . To calculate BTUs per hour, multiply watts by

3.4123.

ST9146802SS CURRENT/POWER vs THROUGHPUT (SAS - 3.0GB)

1.400

1.200

Random 8 Block Reads

14 . 0 0

12 . 0 0

5Volt A 12 V o l t A Watts

1.000

0.800

0.600

Amperes

0.400

0.200

0.000

0.0 50.0 100.0 150.0 200.0 250.0 300.0 350.0

10 . 0 0

8.00

6.00

4.00

2.00

0.00

Power (watts)

I/Os per Second

Figure 4. ST9146802SS (3 Gbit) DC current and power vs. input/output operations per second

ST973402SS in 3 Gbit operation

Typical power dissipation under idle conditions in 3Gb operation is 5.14 watts (17.54 BTUs per hour). To obtain operating power for typical random re ad operations , refer to the following I/O rate curve (see Figure

3.4123.

ST973402SS CURRENT/POWER vs THROUGHPUT (SAS - 3.0GB)

1.4 0 0

1.2 0 0

Random 8 Block R eads

14 .0 0

12 .0 0

5Volt A 12 V o lt A Watts

1.0 0 0

0.800

0.600

Amperes

0.400

0.200

0.000

0.0 50.0 100.0 150.0 200.0 250.0 300.0 350.0

10 .0 0

8.00

6.00

4.00

2.00

0.00

Power (watts)

I/Os per Second

Figure 5. ST973402SS (3 Gbit) DC current and power vs. input/output operations per second

Savvio 10K.2 SAS Product Manual, Rev. B 29

6.4 Environmental limits

Temperature an d hum idi ty values ex peri enc ed by the dri ve mus t be s uc h that cond ens ati on does not occ ur on any drive part. Altitude and atmospheric pressu re specifications are refer enced to a standard day at 58.7 °F (14.8°C). Maximum wet bulb temperature is 82°F (28°C).

6.4.1 Temperature

a. Operating

With cooling designe d to maintain the case temper atures, the dr ive meets all s pecificati ons 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 shoul d be desig ned such that these temper atures not e xceeded. Air flow may be needed to achieve these temp erature values (see Section tures above these values may adversely affect the drives ability to meet specifications.

The MTBF specification for the drive is based on operating in an environment that ens ures that the case temperatures are not ex ceeded. Occasional excursions to driv e ambient tempera tures of 131°F (55°C) or 41°F (5°C) may occur without impact to specified MTBF. Air flow may be needed to achieve these tempera tures. Continual or su staine d op erati on at c as e t emp eratur es a bov e t hese v al ues m ay deg rade MT BF. The maximum allowable continuous or sustained HDA case temperature for the rated MTBF is 122°F (50°C).

To confirm that the required cooling for the electronics and HDA is provided , place the drive in its final mechanical configurati on, perform random write/read operati ons. After the temp eratures stabilize, measure the case temperature of the drive.

The maximum allowabl e HDA c ase temperature is 60°C. Oper ati on of t he d riv e a t the ma xi mu m c ase t emperature is intended for short time periods only. Continuous operatio n at the elevated temperatures will reduce product reliabili ty.

b. Non-operating

–40° to 158°F (–40° to 70°C) package ambient with a maxim um 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.

8.2). Operation at case tempera-

HDA Temp. Check Point

Figure 6. Location of the HDA temperature check point

30 Savvio 10K.2 SAS Product Manual, Rev. B

6.4.2 Relative humidity

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

5% to 95% non-condensing relative humidity with a maximum gradient of 20% per hour.

b. Non-operating

5% to 95% non-condensing relative humidity.

6.4.3 Effective altitude (sea level)

a. Operating

–200 to +10,000 feet (–60.96 to +3,048 meters)

b. Non-operating

–200 to +40,000 feet (–60.96 to +12,210 meters)

6.4.4 Shock and vibration

Shock and vibration lim its specifie d in this docum ent are measur ed directl y on the driv e chassis . If the drive is installed in an e nclosure to which the stated shock and/or vibra tion cri teria is ap plied, reson ances 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 vibr ation define d within this doc ument are spec ified with the d rive mounted by any of the four methods shown in Fig ure side nearest the LED may be up or down.

7, and in accordance with the restrictio ns of Section 8.3. Orientation of th e

6.4.4.1 Shock

a. Operating—normal

The drive, as installed for normal operation, shall operate error free while subjected to intermittent shock not exceeding 15 Gs at a maximum duration of 11 msec (half sinewave). The drive, as ins tall ed for normal operation, shall operate error free while subjected to intermittent shock not exceeding 20 Gs at a maximum duration of 2 msec (half sinewave). Shock may be applied in the X, Y, or Z axis.

b. Operating—abnormal

Equipment, as installed for norma l operation, does not inc ur physical damage while subjected to intermittent shock not exceedi ng 40 Gs at a maximum duratio n of 11 msec (h alf sinewave). Shock occurring at abnormal levels may promote degraded operational performance during the abnormal shock period. Speci fied 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 c onditions of handl ing and transpo rtation. This inc ludes both isolated drives and integrated drives.

The drive subjected to nonrepetitive sh ock not exceeding 7 5 Gs at a maximum d uration of 11 msec (half sinewave) shall n ot exh ibit dev ice d amage or pe rformanc e deg radation . Sh ock may be ap plied in the X, Y, or Z axis.

The drive subjected to no nrepetitive shock n ot exceeding 300 Gs at a ma ximum duration of 2 msec (half sinewave) does not exhibi t device dam age or pe rforman ce degr adati on. Shock m ay be appl ied in th e X, Y, or Z axis.

The drive subjected to no nrepetitve shock not exc eeding 20 0 Gs at a maxim um duration of 0.5 msec (hal f sinewave) does not exhibi t device dam age or pe rforman ce degr adati on. Shock m ay be appl ied in th e X, Y, or Z axis.

Savvio 10K.2 SAS Product Manual, Rev. B 31

d. Packaged

Disc drives shipped as loose load (no t palletized) g eneral frei ght will b e packaged to w ithstand drops f rom 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 mul tipacks with a gross weight o f 20 pounds (8.95 k g) or less by Se agate for general freight ship ment shal l withstand a drop t est from 48 inches (1, 070 mm) aga inst a co ncrete floor or equivalent.

Y X

Figure 7. Recommended mounting

32 Savvio 10K.2 SAS Product Manual, Rev. B

6.4.4.2 Vibration

a. Operating—normal

The drive as installed for normal ope ration, shall comply with the complete specif ied performance while subjected to continuous vibration not exceeding

10-500 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 in cur physical damage while subj ected to periodic vibration not exceeding:

15 minutes of duration at major resonant frequency

10-500 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 - 500 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 i ncur ph ysi cal damag e o r degrad ed per formanc e as a result of con tinuous vib ratio n not exceeding

Vibration may be applied in the X, Y, or Z axis. Non-operating translational random flat profile 10 - 500 Hz 1.2 GRMS

5-22 Hz @ 0.040 inches (1.02 mm) displacement (zero to peak)

20-500 Hz @ 3.0 G (zero to peak)

6.4.5 Air cleanliness

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

6.4.6 Corrosive environment

Seagate electronic driv e components pass accelerated corr osion testing equivalent to 10 ye ars exposure to light industrial envir onments containi ng sulfuro us gases, chlorine an d nitric oxide , classes G and H per ASTM B845. However, this accelerated testing cannot duplicate every potential application environment.

Users should use cauti on exposing any ele ctronic compo nents to uncontrolled chem ical pollutants and corr osive chemicals as electronic drive component reliability can be affected by the installation environment. The silver, copper, n icke l and gold films used i n Seagate produc ts are especi ally sens itiv e to the presen ce of sulfide , chloride, and nitrate contaminants. Sulfur is found to be the most damaging. In addition, electronic components should never be ex pose d to c ondensin g water on the surfac e of th e pri nted cir cuit bo ard a ssembly (PCBA ) or exposed to an ambient relative humidity greater than 95%. Materials used in cabinet fabrication, such as vulca nized rubber, that can outgas corrosive compo unds ssho uld be minimiz ed or elimi nated. T he useful li fe of any electronic equipment may be extended by replacing materials near circuitry with sulfide-free alternatives.

Savvio 10K.2 SAS Product Manual, Rev. B 33

6.4.7 Acoustics

Sound power during idle mode shall be 3.1 bels typical when measured to ISO 7779 specification. There will not be any discrete tones more than 10 dB above the masking nois e on typical drives when mea-

sured according to Sea gate specificat ion 30553-001 . There will not be any tones more than 24 dB abo ve the masking noise on any drive.

6.4.8 Electromagnetic susceptibility

See Section 2.1.1.1.

34 Savvio 10K.2 SAS Product Manual, Rev. B

6.5 Mechanical specifications

The following nominal di men sion s ar e exc lusiv e of the dec or at iv e front panel acces s ory. However, dimensions of the front panel are shown in figure below. Refer to Figure See Section 8.3, “Drive mounting.”

Height: 0.583 in 14.8 mm Width: 2.76 in 70 mm Depth: 3.957 in 100.5 mm Weight: 0.50 pounds 0.227 kilograms

Temperature Measurement Location

8 for detailed mounting conf iguratio n dim ensions .

Figure 8. Mounting configuration dimensions

Savvio 10K.2 SAS Product Manual, Rev. B 35

36 Savvio 10K.2 SAS Product Manual, Rev. B

7.0 Defect and error management

Seagate continues to use innovative technologies to manage defects and errors. These technologies are designed to increase data integrity, perform drive self-maintenance, and validate proper drive operation.

SCSI defect and error ma nagement involves drive intern al defect/error management and SA S system error considerations ( errors in communication s between the initiator and the drive). In addition, Seagate provides the following technologies used to increase data integrity and drive reliability:

• Background Media Scan (see Section 7.4)

• Media Pre-Scan (see Section 7.5)

• Deferred Auto-Reallocation (see Section 7.6)

• Idle Read After Write (see Section 7.7) The read error rates and specified storage capacities are not dependent on host (initiator) defect management

routines.

7.1 Drive internal defects/errors

During the initial drive format operation at the factor y, media defects are identified, tagged as being unusable , and their locations recorded on the dr ive 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 lo cation listed in the defects reallocat ion table. The “P” list is n ot altered after factory formatting. Locations of defects found and reallocated duri ng error recovery p rocedures after drive shipment are listed in the “G” list (d efects growth list) . The “P” and “G ” lists may be refe renced by the in itiator u sing the Read Defect Data command.

Details of the SCSI com man ds supp orted by the dr ive ar e des cribe d in t he SA S Interface Manual. Also, mor e information on the drive Error Recovery philosophy is presented in the SAS Interface Manual.

7.2 Drive error recovery procedures

When an error occurs during drive operation, the drive, if programmed to do so, performs error recovery procedures to attempt to recover the data. The error recovery procedures used depend on the options previously set in the Error Recovery Par am ete rs mod e page. E rror r ecov er y and defect management may invol v e us ing se v eral SCSI commands de scribed i n the SAS In terface M anual. The drive implem ents selectabl e error recove ry 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 addi tion to c ontr o ll ing the re co ve ry le ve l for a singl e LB A. T he total amount of time spent in error recovery for a comm and c an be li mited using the Recovery Time Limit bytes in the E rror Rec ov ery mod e page. The total amount of time spent in e rror recovery for a single LBA can be limited using the Re ad Retry Count or Write Retry Count bytes in the Error Recovery mode page.

Savvio 10K.2 SAS Product Manual, Rev. B 37

The drive firmware error re covery alg orithms con sists of 11 levels for read recoveries and five le vels for write . Each level may consis t of multip le steps, where a step is define d as a recove ry function involv ing a si ngle reread or re-write at temp t. Th e m ax im um lev el used by t he dr iv e i n LBA r ec ove ry i s dete rm in ed by the r ead an d write retry counts.

Table 14 eq uates the read and write retry count with the maximu m possible recov ery time for read and write recovery of individua l LBAs . The time s give n do not inc lude time taken to pe rform realloc ations . Realloc ations are performed when the ARRE bit (for reads) or AWRE bit (for writes) is one, the RC bit is zero, and the recov ery time limit for the command has not yet been met. Time needed to p erform reallocation is not counted against the recovery time limit.

38 Savvio 10K.2 SAS Product Manual, Rev. B

When the RC bit is on e, reall ocatio ns are d isabled even if the ARRE o r AWRE bits are one. The d rive 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 14: Read and write retry count maximum recovery times

Maximum recovery time per

Read retry count

0 67.43 0 31.12 1 77.81 1 46.68 2 264.54 2 72.62 3 300.85 3 88.18 4 344.60 4 155.73 5 378.72 5 (default) 192.04 6 420.21 7 529.22 8 617.62 9 659.11 10 705.80 11 (default ) 1693.67

LBA (cumulative, msec) Write retry count

Maximum recovery time per LBA (cumulative, msec)

Setting these retry counts to a value be low the default set ting could resul t in degradation of the unrecove red 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 ti me limit set to 450. A 4-block read co mmand can take up to 371 msec recovery time for each block and a maximum of 450 ms ec recovery for all four blo cks. If either of these limits is reached and a block has not yet been r ecovered, the co mmand will end with Che ck Condition status and an unrecoverable read error will be reported.

7.3 SAS system errors

Information on the re porting of operational er rors or faults across the in terface is given in the SAS Interface Manual. The SSP Response returns information to the host about numerous kinds of errors or faults. The

Receive Diagnostic Results reports the results of diagnostic operations performed by the drive. Status returned by the drive to the initiator is de scribed in t he SAS Interfac e Manu al. Status reporting plays a

role in systems e rro r manage men t and its use in that res pect is d escribed in sectio ns wh ere the v arious com mands are discussed.

7.4 Background Media Scan

Background Media S can (BMS) is a self-initiated media s can. BMS is defined in the T10 docu ment SPC-4 available from the T10 co mmittee. BMS perf orms sequentia l reads across the en tire pack of the media whil e the drive is idle. In RAID arrays , BMS allows hot spar e drive s to b e scanne d for defects pri or to bei ng put into service by the ho st sys tem. On regular duty d rive s, if the hos t s yste m m ak es us e o f the B MS Log Pa ge, it can avoid placing data i n suspect locations o n the media . Unreadabl e and recov ered error s ites will be logged or reallocated per ARRE/AWRE settings.

With BMS, the host system can consume le ss power an d system over head by only ch ecking BMS status and results rather than tying up the bus and consuming power in the process of host-initiated media scanning activ ity.

Savvio 10K.2 SAS Product Manual, Rev. B 39

Since the background scan functions are only done during idle periods, BMS causes a negligible impact to system performance. The fi rst BMS scan for a ne wly manufactured driv e is performed as qu ickly as possible to verify the media and p rotect da ta by setting t he “Start time after idle” to 5ms, all s ubse quent s cans beg in after 500ms of idle time. Othe r features that no rmally use id le time to fu nction will func tion normally because BMS functions for bursts of 800m s and then suspends activity for 100 ms to allow other background function s to operate.

BMS interrupts immediately to service host commands from the interface bus while performing reads. BMS will complete any BMS-initiated error recovery prior to returning to service host-initiated commands. Overhead associated with a ret urn to host-servicing activity from BMS only impacts the first command tha t interrupted BMS, this results in a typical delay of about 1 ms.

7.5 Media Pre-Scan

Media Pre-Scan is a fea tur e th at al lo ws the d rive to repa ir me dia er ro rs tha t wou ld o the rwi se hav e b een foun d by the host system during critical data accesses early in the drive’s life. The default setting for Media Pre-Scan is enabled on s tandard pr oducts. M edia Pre-S can chec ks eac h wr ite c ommand to de termine if the de stina tion LBAs have been scanned by BMS. If t he LBAs have been v erified, the drive pr oceeds with the nor mal write command. If the LBAs have not been verified by BMS, Pre-Scan will convert the write to a write verify to certify that the data was properly written to the disc.

Note. During Pre-Sca n write verify comma nds, write perform ance may decreas e by 50% until Pre-Sca n

completes. Write perform ance testing should be perfor med after Pre-Scan is complete. This may be checked by reading the BMS status.

To expedite the scan of the full pack and subsequently exit from the Pre-Scan period, BMS will begin scanning immediately when the drive goes to idle during the Pre-Scan pe riod. In the event that the drive is in a high transaction traffic environment and is unable to c omplete a BMS sca n within 24 power on hou rs BMS wil l dis able Pre-Scan to restore full performance to the system.

7.6 Deferred Auto-Reallocation

Deferred Auto-Reallocation (DAR) simplifies reallocation algorithms at the system level by allowing the drive to reallocate unreadab le loc at ion s o n a subsequent write command . Si tes are m a rke d fo r D AR d uring r ead oper ations performed by the drive. When a write command is received for an LBA marked for DAR, the auto-reallocation process is invoked and attempts to rewrite the data to the original location. If a verification of this rewrite fails, the sector is re-mapped to a spare location.

This is in contrast to the system having to use the Reassign Command to reassign a location that was unreadable and then generate a write co mmand to rewrite the data. DAR is most effective whe n AWRE and ARRE are enabled—this is the default setting from the Seagate factory. With AWRE and ARRE disabled DAR is unable to reallocate th e failing loc ation and wi ll report a n error sens e code ind icating that a w rite comman d is being attempted to a previously failing location.

7.7 Idle Read After Wr ite

Idle Read After Write (IRAW) utilizes idle time to verify the integrity of recently written data. During idle periods, no active system requests, the drive reads rec ently written data from the media an d compares it to val id write command data resident in the drives data buffer. Any sectors that fail the comparison result in the invocation of a rewrite and auto-rea llocation proce ss. The process attempts to rewrite the data to the original lo cation. If a verification of this rewrite fails, the sector is re-mapped to a spare location.

40 Savvio 10K.2 SAS Product Manual, Rev. B

8.0 Installation

Savvio disc drive installation is a plug-and-play process. There are no jumpers, switches, or terminators on the drive.

SAS drives are desi gned to be used in a host s ystem that provides a SAS -compatible backplane with ba ys designed to accom odate the drive. In su ch systems, the h ost system typically p rovides a carrier or tray into which you need to mount the drive. Mount the drive to the carrier or tray provided by the host system using four M3 x 0.5 metric s crews. Wh en t ightening the s crews, use a maxi mum to rque of 4 .5 in-lb + /- 0.45 in-l b. Do no t over-tighten or force the screws. You can mount the drive in any orientation.

Note. SAS drives a re designed to be attached to the host system without I/O or power ca bles. If you

intend the use the drive in a non-backplane host system , connecting the drive using high- quality

cables is acceptable as long as the I/O cable length does not exceed 4 meters (13.1 feet).

Slide the carrier or tray into the appropriate bay in your host system using the instructions provided by the host system. This connects the drive directly to your system’s SAS connector. The SAS connector is normally located on a SAS backpanel. See

Power is supplied through the SAS connector. The drive is shipped fr om the factory low-level forma tted in 512 -byte logical blocks. You need to reformat the

drive only if you want to select a different logical block size.

Section 9.4.1 for additional information about these connectors.

Figure 9. Physical interface

8.1 Drive orientation

The drive may be m ounted in any orientation. All dr ive performance characterizati ons, however, have been done with the drive in horizontal (discs level) and vertical (drive on its side) orientations, which are the two pre ferred mounting orientations.

Savvio 10K.2 SAS Product Manual, Rev. B 41

8.2 Cooling

Cabinet cooling mus t be desig ned by th e customer so tha t the ambi ent tempera ture imm ediately sur roundin g the drive will not exceed temperature conditions specified in

The rack, cabinet, or drawer environment for the drive must provide heat remov al from the electronics and head and disc assem bl y (HD A). You should confirm that ade quate heat removal is provided using the temper ature measurement guidelines described in Section 6.4.1.

Forced air flow may be required to keep temper atures at or below the temp eratures spe cified in Section 6.4. 1 in which case the drive should be oriented, or air flow directed, so that the least amount of air flow resistance is created while providi ng air flow to the elec tronics and HDA. Al so, the shortest poss ible path between the air inlet and exit should be chos en to minimi ze the tr avel leng th of air heated by the drive and other heat sourc es within the rack, cabinet, or drawer environment.

If forced air is det er min ed to be nec essa r y, possible air-flow patterns a re shown i n F i gure 10. T he ai r-flow patterns are created by on e or more fans, e ither forcing or d rawing air as sh own in the illu strations. C onduction, convection, or other for ced air-flow patterns are acceptabl e as long as the temperature m easurement guide lines of Section 6.4.1 are met.

Section 6.4.1, "Temperature."

Above un

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

or in reverse direction (front to back)

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

Under uni

Above unit

Under unit

Figure 10. Air flow

42 Savvio 10K.2 SAS Product Manual, Rev. B

8.3 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 s urface stiffness (units in lb/i n or N/mm) and X is the out-of-plane surfac e distortion (units in inches or millimeters ). The out-of- plane distor tion (X) is determine d by defin ing a plane w ith three o f the four mounting po ints fixed and evaluat ing the out-of-plan e deflection of the fo urth mounting poi nt when a known force (F) is applied to the fourth point.

8.4 Grounding

Signal ground (PCB A) and HDA ground a re connected to gether in the drive an d cannot be separate d by the user. The equipment in which the drive is mou nte d is co nne cte d dire ct ly to the HD A an d P CBA with no el ec tri cally isolating s hock mounts. If it is desired for the sy stem chassis to not be connected t o the HDA/PCBA ground, the systems in tegrator or user must provide a noncond uctive (elec trically is olating) m ethod of mou nt ing the drive in the host equipment.

Increased radiated em issions may res ult if you do not provid e the maximum su rface area ground conn ection between system ground and drive ground. This is the system designer’s and integrator’s responsibility.

Savvio 10K.2 SAS Product Manual, Rev. B 43

44 Savvio 10K.2 SAS Product Manual, Rev. B

9.0 Interface requirements

This section part ially descr ibes the in terface requ irements as implemented on Savv io drives. Ad ditional i nformation is provided in the SAS Interface Manua l (part number 100293071).

9.1 SAS features

This section lists the SAS-specific features supported by Savvio drives.

9.1.1 task management functions

Table 15 lists the SAS task management functions supported.

Table 15: SAS task management functions supported

Ta sk nam e Supported

Abort Task Yes Clear ACA Yes Clear task s et Yes Abort task set Yes Logical Unit Reset Yes Query Task Yes

9.1.2 task management responses

Table 16 lists the SAS response codes returned for task management functions supported.

Table 16: Task management response codes

Function name Response code

Function complete 00 Invalid frame 02 Function not supported 04 Function failed 05 Function succeeded 08 Invalid logical unit 09

Savvio 10K.2 SAS Product Manual, Rev. B 45

9.2 Dual port support

Savvio SAS dri ves ha ve two inde penden t p orts. Thes e po rts may b e con nected in the sa me or different SCSI domains. Each drive port has a unique SAS address.

The two ports run at the same link ra te. The first po rt to successfu lly complet e speed ne gotiation sets the li nk rate support by both ports. When the second port participates in sp eed negotiatio n, it indicates the only sup ported speed is the s peed sele cted by the fi rst por t. If the fi rst port to compl ete spe ed nego tiatio n loos es sync before the second port completes speed negotiation, both ports revert back to the power on condition of allow ing either link rate (1.5 or 3.0 Gbits/sec).

Subject to buffer availability, the Savvio drives support:

• Concurrent port tr ansfers—The dr ive suppor ts receiving COM MAND, TASK management transf ers on both ports at the same time.

• Full duplex—The drive supports sending XFER_RDY, DATA and RESPONSE transfers while receiving frames on both ports.

46 Savvio 10K.2 SAS Product Manual, Rev. B

9.3 SCSI commands supported

Table 17 lists the SCSI commands supported by Savvio drives.

Table 17: Commands supported by Savvio SAS family drive

Command name Command code Supported

Change Definition 40h N Compare 39h N Copy 18h N Copy and Verify 3Ah N Format Unit [1] 04h Y DPRY bit supported N DCRT bit supported Y STPF bit supported Y IP bit supported Y DSP bit supported Y IMMED bit supported Y VS (vendor specific) N Inquiry 12h Y Date Code page (C1h) Y Device Behavior page (C3h) Y Firmware Numbers page (C0h) Y Implemented Operating Def page (81h) Y Jumper Settings page (C2h) Y Supported Vital Product Data page (00h) Y Unit Serial Number page (80h) Y Lock-unlock cache 36h N Log Select 4Ch Y PCR bit Y DU bit N DS bit Y TSD bit Y ETC bit N TMC bit N LP bit N Protocol-specific Log Page for SAS (18h) Y Log Sense 4Dh Y Applicatio n Client Log page (0Fh) Y Buffer Over-run/Under-run page (01h) N Cache Statistics page (37h) Y Factory Log page (3Eh) Y Information Exceptions Log page (2Fh) N

Savvio 10K.2 SAS Product Manual, Rev. B 47

Table 17: Commands supported by Savvio SAS family drive (continued)

Command name Command code Supported

Last n Deferred Errors or Asynchronous Events page (0Bh) N Last n Error Events page (07h) N Non-medium Error page (06h) Y Pages Supported list (00h) Y Read Error Counter page (03h) Y Read Reverse Error Counter page (04h) N Self-test Results page (10h) Y Start-stop Cycle Counter page (0Eh) Y Temperature page (0Dh) Y Verify Error Counter page (05h) Y Write error counter page (02h) Y Mode Select (same pages as Mode Sense 1Ah) 15h Y [2] Mode Select (10) (same pages as Mode Sense 1Ah) 55h Y Mode Sense 1Ah Y [2] Caching Parameters page (08h) Y Control Mode page (0Ah) Y Disconnect/Reconnect (02h) Y Error Re c overy page (01h) Y Format page (03h) Y Information Exceptions Control page (1Ch) Y Notch and Partition Page (0Ch) N Protocol-Specific Port page (19h) Y Power Condition page (1Ah) Y Rigid Disc Drive Geometry page (04h) Y Unit Attention page (00h) Y Verify Error Recovery page (07h) Y Xor Control page (10h) N Mode Sense (10) (same pages as Mode Sense 1Ah) 5Ah Y Persistent Reserve In 5Eh Y Persistent Reserve Out 5Fh Y Prefetch 34h N Read (6) 08h Y Read (10) 28h Y DPO bit supported Y FUA bit supported Y Read (12) A8h N Read (16) 88h N Read (32) 7Fh/0009h N Read Buffer (modes 0, 2, 3, Ah and Bh supported) 3Ch Y

48 Savvio 10K.2 SAS Product Manual, Rev. B

Table 17: Commands supported by Savvio SAS family drive (continued)

Command name Command code Supported

Read Capacity (10) 25h Y Read Capacity (16) 9Eh/10h N Read Defect Data (10) 37h Y Read Defect Data (12) B7h Y Read Long 3Eh Y Read Long (16) 9Eh/11h N Reassign Blocks 07h Y Receive Diagnostic Results 1Ch Y Supported Diagnostics pages (00h) Y Translate page (40h) Y Release 17h Y Release (10) 57h Y Report LUNs A0h Y Request Sense 03h Y Actual Retry Count bytes Y Extended Sense Y Field Pointer bytes Y Reserve 16h Y 3rd Party Reserve Y Extent Reservation N Reserve (10) 56h Y 3rd Party Reserve Y Extent Reservation N Rezero Unit 01h Y Search Data Equal 31h N Search Data High 30h N Search Data Low 32h N Seek (6) 0Bh Y Seek (10) 2Bh Y Send Diagnostics 1Dh Y Supported Diagnostics pages (00h) Y Translate page (40h) Y Set Limits 33h N Start Unit/Stop Unit (spindle ceases rotating) 1Bh Y Synchronize Cache 35h Y Synchronize Cache (16) 91h N Test Unit Ready 00h Y Verify (10) 2Fh Y BYTCHK bit Y

Savvio 10K.2 SAS Product Manual, Rev. B 49

Table 17: Commands supported by Savvio SAS family drive (continued)

Command name Command code Supported

Verify (12) AFh N Verify (16) AFh N Verify (32) 7Fh/000Ah N Write (6) 0Ah Y Write (10) 2Ah Y DPO bit Y FUA bit Y Write (12) AAh N Write (16) 8Ah N Write (32) 7Fh/000Bh N Write and Verify (10) 2Eh Y DPO bit Y Write and Verify (12) AEh N Write and Verify (16) 8Eh N Write and Verify (32) 7Fh/000Ch N Write Buffer (modes 0, 2, supported) 3Bh Y Firmware Download option

(modes 5, 7, Ah and Bh supported) [3] Write Long (10) 3Fh Y Write Long (16) 9Fh/11h N Write Same (10) 41h Y PBdata N LBdata N Write Same (16) 93h N Write Same (32) 7Fh/000Dh N XDRead 52h N XDWrite 50h N XPWrite 51h N

[1] Savvio drives can format to any multiple of four bytes per logical block in the range 512 to 528 bytes. [2] Warning. Power loss during flash progr am mi ng ca n r es ult in fir mwa re c orr upti on . Thi s us ually m ak es th e

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.

50 Savvio 10K.2 SAS Product Manual, Rev. B

9.3.1 Inquiry data

Table 18 lists the Inquiry com mand data that th e drive sho uld retur n to the initi ator per the fo rmat giv en in the SAS Interface Manual.

Table 18: Savvio inquiry data

Bytes Data (hex)

0-15 00 00 xx** 12 8B 00 PP 0A 53 45 41 47 41 54 45 20 Vendor ID 16-31 [53 54 39 31 34 36 38 30 32 53 53] 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* 36* 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). ** SCSI Revision support. See the appropriate SPC release documention for definitions. PP 10 = Inquiry data for an Inquiry command received on Port A.

30 = 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 26 reflect model of drive. The table above shows the hex values for Model ST9146802SS.

Refer to the values below for the values of bytes 16 through 26 of you particular model:

ST9146802SS 5354393134363830325353

ST973402SS 53 54 39 37 33 34 30 32 53 53 20

9.3.2 Mode Sense data

The Mode Sense command pr ovide s a way for the driv e to report its operati ng paramete rs to the initi ator. The drive maintains four sets of mode parameters:

1. Default values

Default values are har d-coded in the drive firmwa re stored in fl ash E-PROM (non volatile me mory) on the drive’s PCB. These defa ult values can be changed o nly by downloadi ng a complete s et of new firmw are into the flash E-PROM. An ini tiator can requ est and rece ive from the driv e a list of default values and use those in a Mode Select co mmand to set up new current and s aved values , where the val ues are chan ge able.

2. Saved values

Saved values are st ored on the dr ive’s media us ing a Mode Selec t comman d. Only parameter va lue s 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 take s saved values from the media and stores them as current values in volatile memo ry. It is not possible to change the current val ues (or the saved va lues) 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.

Savvio 10K.2 SAS Product Manual, Rev. B 51

On drives requiring unique sa ved value s, the req uired unique saved value s are sto red into the saved va lues storage location on the medi a pr i or to sh ip ping the drive. Some drives m ay have uni qu e fir m war e wit h 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.

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 identifi ed as chan geable va lues. Ori ginally, current values a re installed from saved or default values after a power on reset, hard reset, or Bus Device Reset message.

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) i ndicates the value can be changed. A zero (0 ) indicates t he value is not changeab le. For exam ple, in Table 81, in the row entitled “CHG.” These are hex numbers representing the ch angeab le 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 al so that bytes 06, 07, 09, 10, and 11 are not changeable, bec ause 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 fie ld, it mea ns that bit is no t changeable. Since all of the bits in byte 02 are ones, al l of these bi ts 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.

19, refer to Mode page

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 SAS Interface Manual ).

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

52 Savvio 10K.2 SAS Product Manual, Rev. B

Table 19: Mode Sense data changeable and default values for ST9146802SS drives

MODE DATA HEADER: 03 fa 00 10 00 00 00 08

BLOCK DESCRIPTOR: 11 17 73 30 00 00 02 00

MODE PAGES: DEF 81 0a c0 0b ff 00 00 00 05 00 ff ff CHG 81 0a ff ff 00 00 00 00 ff 00 ff ff

DEF 82 0e 00 00 00 00 00 00 00 00 01 3a 00 00 00 00 CHG 82 0e 00 00 00 00 00 00 00 00 ff ff 00 00 00 00

DEF 83 16 1e 3c 00 00 00 1c 00 00 03 03 02 00 00 01 00 6c 00 4e 40 00 00 00 CHG 83 16 00 00 00 00 ff ff 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

DEF 84 16 01 08 fc 04 00 00 00 00 00 00 00 00 00 00 00 00 00 00 27 31 00 00 CHG 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 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

DEF 88 12 14 00 ff ff 00 00 ff ff ff ff 80 20 00 00 00 00 00 00 CHG 88 12 a5 00 00 00 ff ff ff ff 00 00 20 00 00 00 00 00 00 00

DEF 8a 0a 02 00 00 00 00 00 00 00 08 16 CHG 8a 0a 03 f0 00 00 00 00 00 00 00 00

DEF 18 06 06 00 00 00 00 00 CHG 18 06 00 00 00 00 00 00

DEF 99 06 06 00 07 d0 00 00 CHG 99 06 10 00 ff ff ff ff

DEF 9a 0a 00 02 00 00 00 05 00 00 00 04 CHG 9a 0a 00 03 ff ff ff ff 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 dc 01 00 0c 01 01 00 18 00 18 00 00 00 00 00 00 CHG dc 01 00 0c 01 01 ff ff ff ff 00 00 00 00 00 00

DEF b9 0a 00 00 00 00 00 00 00 00 00 00 CHG b9 0a 00 08 00 00 00 00 00 00 00 00

DEF ba 0a 00 05 01 19 01 00 00 0a 00 00 CHG ba 0a 00 ff 03 ff ff ff 06 ff 00 00

DEF 80 06 00 80 0f 00 00 00 CHG 80 06 b7 c0 0f 00 00 00

Savvio 10K.2 SAS Product Manual, Rev. B 53

Table 20: Mode Sense data changeable and default values for ST973402SS drives

MODE DATA HEADER: 03 fa 00 10 00 00 00 08

BLOCK DESCRIPTOR: 08 8b b9 98 00 00 02 00

MODE PAGES:

DEF 81 0a c0 0b ff 00 00 00 05 00 ff ff CHG 81 0a ff ff 00 00 00 00 ff 00 ff ff

DEF 82 0e 00 00 00 00 00 00 00 00 01 3a 00 00 00 00 CHG 82 0e 00 00 00 00 00 00 00 00 ff ff 00 00 00 00

DEF 83 16 0f 1e 00 00 00 0e 00 00 03 03 02 00 00 01 00 6c 00 4e 40 00 00 00 CHG 83 16 00 00 00 00 ff ff 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

DEF 84 16 01 08 fc 02 00 00 00 00 00 00 00 00 00 00 00 00 00 00 27 31 00 00 CHG 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 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

DEF 88 12 14 00 ff ff 00 00 ff ff ff ff 80 20 00 00 00 00 00 00 CHG 88 12 a5 00 00 00 ff ff ff ff 00 00 20 00 00 00 00 00 00 00

DEF 8a 0a 02 00 00 00 00 00 00 00 04 2e CHG 8a 0a 03 f0 00 00 00 00 00 00 00 00

DEF 18 06 06 00 00 00 00 00 CHG 18 06 00 00 00 00 00 00

DEF 99 06 06 00 07 d0 00 00 CHG 99 06 10 00 ff ff ff ff

DEF 9a 0a 00 02 00 00 00 05 00 00 00 04 CHG 9a 0a 00 03 ff ff ff ff 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 dc 01 00 0c 01 01 00 18 00 18 00 00 00 00 00 00 CHG dc 01 00 0c 01 01 ff ff ff ff 00 00 00 00 00 00

DEF b9 0a 00 00 00 00 00 00 00 00 00 00 CHG b9 0a 00 08 00 00 00 00 00 00 00 00

DEF ba 0a 00 05 01 19 01 00 00 0a 00 00 CHG ba 0a 00 ff 03 ff ff ff 06 ff 00 00

DEF 80 06 00 80 0f 00 00 00 CHG 80 06 b7 c0 0f 00 00 00

54 Savvio 10K.2 SAS Product Manual, Rev. B

9.4 Miscellaneous operating features and conditions

Table 21 lis ts various fe atures and con dition s. A “Y” in the sup port colu mn indi cates the featur e or co ndition is supported. An “N” in the support column indicates the feature or condition is not supported.

Table 21: Miscellaneous features

Supported Feature or condition

N Automatic contingent alle giance N Asynchronous event notification N Synchronized (locked) spind le ope rati on Y Segmented caching N Zero latency read Y Queue tagging (up to 64 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 22: Miscellaneous status

Supported Status

Y Good Y Check condition Y Condition met/good Y Busy Y Intermediate/good Y Intermediate/condition met/good Y Reservation con flict Y Task set full N ACA active N ACA active, faulted initiator

Savvio 10K.2 SAS Product Manual, Rev. B 55

9.4.1 SAS physical interface

Figure 11 shows the location of the SAS device connector J1. Figures 12 and 13 provide the dimensions of the SAS connector.

Details of the physical, el ectrical, and logica l characteristics ar e provided within this section. The operati onal aspects of Seagate’s SAS drives are provided in the SAS Interface Manual..

Figure 11. Physical interface

56 Savvio 10K.2 SAS Product Manual, Rev. B

0.80 (6X)

0.30 0.05 (2X)

2.00 (3X)

7.625.92

5.08

42.73 REF.

41.13 0.15

0.20

4.65

0.52 0.08 x 45

0.45 0.03 (7X)

0.10 M E

1.10

4.00 0.08

0.15 D

0.30 0.05 (4X)

0.35MIN

C OF DATUM D

15.875

1.27 (14X)

P15

33.43 0.05

5.08

C OF DATUM B

15.875

1.27 (6X)

SEE Detail1

0.84 0.05 (22X)

R0.30 0.08 (4X)

0.15 B

4.90 0.08

Figure 12. SAS device plug dimensions

Savvio 10K.2 SAS Product Manual, Rev. B 57

Detail A

SEE Detail 2

2.25 0.05

4.85 0.05

0.10

S14

6.10

CORING ALLOWED IN THIS AREA.

4.40 0.15

0.30 0.05 x 45 (5X)

0.40 0.05 X 45 (3X)

R0.30 0.08

1.95 0.08

3.90 0.15

1.23 0.05

0.08 0.05

SECTION A - A

0.08 0.05

Detail 2

0.35 0.05

CONTACT SURFACE FLUSH TO DATUM A 0.03

2.40 0.08

0.10 A

SECTION C - C

SECTION B - B

1.90 0.08

Figure 13. SAS device plug dimensions (detail)

58 Savvio 10K.2 SAS Product Manual, Rev. B

9.4.2 Physical characteristics

This section defines physical interface connector.

9.4.3 Connector requirements

Contact your preferred conn ector manu facturer for mating part in formation . Part numb ers for SAS connectors will be provided in a fu ture rev ision of th is pub lica tion when produ ction parts are availabl e from maj or co nnec tor manufacturers.

The SAS device connector is illustrated in Figures 12 and 13.

9.4.4 Electrical description

SAS drives use the device connector for:

• DC power

• SAS interface

• Activity LED This connector is designed to either plug directly into a backpanel or accept cables.

9.4.5 Pin descriptions

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

Table 23: SAS pin descriptions

Pin Signal name Signal type Pin Signal name Signal type

S1 Port A Ground P1* NC (reserved 3.3Volts) S2* +Port A_in Diff. input pai r P2* NC (reserved 3.3Volts) S3* -Port A_in P3 NC (reserved 3.3Volts) S4 Port A Ground P4 Ground S5* -Port A_out Diff output pair P5 Ground S6* +Port A_out P6 Ground S7 Port A Ground P7 5 Volts charge S8 Port B Ground P8* 5 Volts S9* +Port B_in Diff. input pai r P9* 5 Volts S10* -Port B_in P10 Ground S11 Port A Ground P11* Ready LED Open collector out S12* -Port B_ou t Diff output pair P12 Ground S13* +Port B_out P13 12 Volts charge S14 Port B Ground P14* 12 Volts

P15* 12 Volts

* - Short pin to support hot plugging

Savvio 10K.2 SAS Product Manual, Rev. B 59

NC - No connection in the drive.

9.4.6 SAS transmitters and receivers

A typical SAS differential copper tran smitt er and recei ver pair is sho wn in Figur e 14. The rec eiver is A C coupling to eliminate ground shift noise.

Transmitter

Figure 14. SAS transmitters and receivers

Differential

Transfer Medium

.01

Receiver

100100

9.4.7 Power

The drive receives power (+5 volts and +12 volts) through the SAS device connector. Three +12 volt pi ns provide power to the drive, 2 shor t and 1 long. The c urrent 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.

Three +5 volt pins provide power to the drive, 2 short and 1 lo ng. The current return for the +5 volt power s upply is through the common ground pins. The supply current and return current must be distributed as evenly as possible among the pins.

Current to the drive throu gh the long po wer pins may be l imited by the s ystem to red uce inrush current to th e drive during hot plugging.

9.5 Signal characteristics

This section descri bes the elec tric al si gna l c harac ter i st ic s of the dr ive’s in put a nd ou tput signals. See Table 23 for signal type and signal name information.

9.5.1 Ready LED Out

The Ready LED Out signal is driven by the drive as indicated in Table 24.

Table 24: Ready LED Out conditions

Normal command activity LED status

Ready LED Meaning bit mode page 19h

Spun down and no activity Off Off Spun down and activity (command executing) On On Spun up and no activity On Off Spun up and activity (command executing) Off On Spinning up or down Blinks steadily

(50% on and 50% off, 0.5 seconds on and off for 0.5 seconds)

0 1

60 Savvio 10K.2 SAS Product Manual, Rev. B

Table 24: Ready LED Out conditions

Normal command activity LED status

Format in progress, each cylinder change Toggles on/off

The Ready LED Out signal i s designed to pull down the cathode of an LED. T he anode is attached to the proper +3.3 volt supply through an appropr ia te cu rren t li mi tin g res is tor. The LED and the cu rrent limiting resis tor are external to the drive. See Table 25 for the output characteristics of the LED drive signals.

Table 25: LED drive signal

State Test condition Output voltage

LED off, high 0 V ≤ VOH ≤ 3.6 V -100 µA < IOH < 100 µA LED on, low IOL = 15 mA 0 ≤ VOL ≤ 0.225 V

9.5.2 Differential signals

The drive SAS differential signals comply with the intra-enclosure (internal connector) requirements of the SAS standard.

Table 26 defines the general interface characteristics.

T able 26: General interface characteristics

Characteristic Units 1.5 Gbps 3.0 Gbps

Bit rate (nominal) Mbaud 1,500 3,000 Unit interval (UI)(nominal) ps 666.6 333.3 Impedance (nominal, differential ) ohm 100 100 Transmitter transients, maximum V ± 1.2 ± 1.2 Receiver transients, maximum V ± 1.2 ± 1.2

9.5.2.1 Eye masks

9.5.2.1.1 Eye masks overview

The eye masks are g raphical representations of the voltage and time limits on th e signal at the complianc e point. The time value s b etwe en X 1 a nd ( 1 - X1) cov er al l b ut 10

-12

of the jitter populati on. T he ran dom content

of the total jitter population has a range of ± 7 standard deviations.

Savvio 10K.2 SAS Product Manual, Rev. B 61

9.5.2.1.2 Receive eye mask

Figure 15 describes the recei ve ey e mask. T his eye m ask ap plies to jitter a fter the appl ication of a sing le pol e high-pass frequency-weigh t in g fun ction that p ro gr essi vely att enu ates ji tte r a t 20 d B/d ecade b el ow a fr eq uen cy of ((bit rate) / 1.667).

Absolute

amplitude

(in V)

Z2 Z1

0 V

-Z1

-Z2

X1 X2

Normalized time (in UI)

1-X1

1-X2

Figure 15. Receive eye mask

Verifying compliance with the limits represented by the receive eye mask should be done with reverse channel traffic present in order that the effects of crosstalk are taken into account.

9.5.2.1.3 Jitter tolerance masks

Figure 16 descri bes the re ceive t olerance e ye mask s and is construc ted using the X2 a nd Z2 v alues giv en in table 29. X1OP is half the value for total jitter intable 29 and X1

is half the value for total jitter in table 30, for

TOL

jitter frequencies above ((bit rate) / 1.667).

Absolute

amplitude

(in V)

TOL

0 V

-Z1

TOL

-Z1

-Z2

TOL

Normalized time (in UI)

(additional sinusoidal jitter) / 2

1-X1

TOL

Outline of eye mask

before adding

sinusoidal jitter

Outline of eye mask

after adding

sinusoidal jitter

Figure 16. Reveive tolerance eye mask

62 Savvio 10K.2 SAS Product Manual, Rev. B

The leading and tr ailing ed ge slopes of figure 15 s hall be pres erved. As a result the amplitud e value of Z1 is less than that giv en in table 2 8 a nd Z1

and Z1OP shall be defined fr om thos e sl ope s by the following equa-

TOL

tion:

TOL

Z1OPx

-----------------------------------------------------------------------------------------------------------------------------------=

05,()xadditional sinusoidal jitter()– X1

–

where: Z1

is the value for Z1 to be used for the tolerance masks; and

TOL

Z1OP, X1OP, and X2OP are the values in table 28 for Z1, X1, and X2. The X1 points in the recei ve toleran ce mask s are gr eater than the X1 points in t he rece ive mask s, due to the

addition of sinusoidal jitter. Figure 17 defines the sinusoidal jitter mask.

Peak-to-

peak

sinusoidal

jitter

(in UI)

1.5

1.0

Si nusoidal j i tter frequency

(log/log plot)

= 1.5 x 109 for 1.5 Gbps

NOM

= 3.0 x 109 for 3.0 Gbps

NOM

0.1 0

/ 25,000 F

NOM

Frequency (in kHz)

Figure 17. Sinusoidal jitter mask

NOM

/ 1,667

Savvio 10K.2 SAS Product Manual, Rev. B 63

9.5.2.2 Transmitter signal characteristics

Table 27 sp ecifies the signa l requirements at the transmitter end of a TxRx connecti on as measured in to the zero-length test load. All specifications are based on differential measurements.

The OOB sequence is per formed at signa l voltage le vels corr esponding to th e lowest supported tran sfer rate. Table 27 specifies the signal characteristics.

Table 27: Transmitter signal characteristics

Signal characteristic

Skew Tx Off Voltage Maximum rise/fall time Minimum ri se/fall time Maximum transmitter output imbalance OOB offset delta OOB common mode delta

a All tests in this table shall be performed with zero-length test load shown in figure 19. b The skew measurement shall be made at the mid point of the tran sition wi th a repeating 01 01b patte rn on the physic al

link. The same stable trigger, coherent to the data stream, shall be used for both the Tx+ and Tx- signals. Skew is defined as the time difference between the means of th e m idpoint crossing times of the Tx+ signa l and the Tx- signal.

c The transmitter off voltage is the maximum A.C. voltage measured at compliance points when the transmitter is

unpowered or transmitting D.C. idle (e.g., during idle time of an OOB signal). d Rise/fall times are measured from 20 % to 80 % of the transition with a repeating 0101b pattern on the physical link. e The maximum difference between the V+ and V- A.C. RMS transmitter amplitudes measured on a CJTPAT test

pattern

RMS amplitudes. f The maximum dif f eren ce in th e av erag e di fferential voltage (D.C. offset) co mp one nt b etw ee n the burs t tim es and the

idle times of an OOB signal. g The maximum difference in the average of the common mode voltage between the burst times and the idle times of

an OOB signal.

(see 9.5.2.3.3) into the test load shown in figure 19, as a percentage of the average of the V+ and V- A.C.

Units 1.5 Gbps 3.0 Gbps

ps 20 15

mV(P-P) < 50 < 50 ps 273 137 ps 67 67 % 10 10 mV ± 25 ± 25 mV ± 50 ± 50

64 Savvio 10K.2 SAS Product Manual, Rev. B

9.5.2.3 Receiver signal characteristics

Table 28 defin es the compl iance point r equirements of the signal at the re ceiver end of a TxRx connecti on as measured into the test loads specified in figure 18 and figure 19.

Table 28: Receiver signal characteristics

Signal characteristic Units 1.5 Gbps 3.0 Gbps

Jitter (see figure 15)

N/A See table 29 See table 29 2 x Z2 mV(P-P) 1,200 1,600 2 x Z1 mV(P-P) 325 275

UI 0.275 0.275 X2 UI 0.50 0.50

Skew

ps 80 75 Max voltage (non-op) mV(P-P) 2.000 2.000 Minimum OOB ALIGN burst amplitude Maximum noise during OOB idle time Max near-end crosstalk

a The value for X1 shall be half t he va lue gi ve n for total jitter in table 29. T he tes t o r an aly si s sh all in clude the effects of

a single pole high-pass frequency-weighting function that progressively attenuates jitter at 20 dB/decade below a frequency of ((bit rate) / 1,667).

b The value for X1 applies at a total jitter probability of 10

between the mask and actual signals is not a valid method for determining compliance with the jitter output

requirements. c With a measurement bandwidth of 1.5 times the baud rate (i.e. 4.5 GHz for 3.0 Gbps). d The skew measurement shall be made at the mid point of the trans ition with a repe ating 0101b p attern on the physical

link. The same stable trigger, coherent to the data stream, shal l be used for both the Rx+ and Rx- signals. Skew is

defined as the tim e dif fer ence between t he mea ns of th e mid poi nt cr ossing t imes o f th e Rx+ si gnal a nd th e Rx- si gnal. e Near-end crosstalk is the unw an ted si gn al amplitude at receiver terminals DR, C R, an d XR c ou ple d from signals and

noise sources other than the desired signal. Refer to SFF-8410.

mV(P-P) 240 240 mV(P-P) 120 120 mV(P-P) 100 100

-12

. At this level of probability direct visual comparison

9.5.2.3.1 Jitter

Table 29 defines the maximum allowable jitter.

Table 29: Maximum allowable jitter

1.5 Gbps m,

Deterministic jitter

0.35 0.55 0.35 0.55

a Units are in UI. b The values for jitter in this section are measured at the average amplitude point. c Total jitter is the sum of deterministic ji tter a nd ran do m ji tter. If the actual deterministic ji tter i s le ss tha n the maxim um

specified, then the ran dom jitt er may increase as long as the total jitter does not exceed the specified maximum total

jitter. d Total jitter is specified at a probability of 10 e The deterministic and total values in this table apply to jitter after application of a single pole high-pass frequency-

weighting function that progressively attenuates jitter at 20 dB/decade below a frequency of ((bit rate) / 1 f If total jitter received at any point is less than the max imum allow ed, then the j itter distributi on of the signa ls is allowe d

to be asymmetric. The total jitter plus the magnitude of the asymmetry shall not exceed the allowed maximum total

jitter. The numerical difference between the average of the peaks with a BER < 10

individual events is the measure of the asymmetry. Jitter peak-to-peak measured < (maximum total jitter -

|Asymmetry|).

Total jitterc,d,e,f Deterministic jittere Total jitterc,d,e,f

-12

3.0 Gbps m,

-12

667).

and the average of the

Savvio 10K.2 SAS Product Manual, Rev. B 65

9.5.2.3.2 Receiver jitter tolerance

Table 30 defines the amount of jitter the receiver shall tolerate .

Table 30: Receiver jitter tolerance

jitter

e,f,h

Total

jitter

Sinusoidal

b,d

jitter

-12

. Receivers shall tolerate sinusoidal jitter of

-12

. The additional 0.1 UI of sinusoidal jitter is

3.0 Gbps

Deterministic

figure 17 with the same deterministic

1.5 Gbps

Sinusoidal

b,c

jitter

0.10 0.35 0.65 0.10 0.35 0.65

a Units are in UI. b The jitter values given are normative for a combination of deterministic jitter, random jitter, and sinusoidal ji tter that

receivers shall be able to tolerate without exceeding a BER of 10 progressively greater amplitude at lower frequencies, according to the mask in

jitter and random jitter levels as were used in the high frequency sweep. c Sinusoidal swept frequency: 900 kHz to > 5 MHz. d Sinusoidal swept frequency: 1.800 kHz to > 5 MHz. e No value is given for random jitter. For compliance with this standard, the actual random jitter amplitude shall be the

value that brings total jitter to the stated value at a probability of 10

added to ensure the receiver has sufficient operating margin in the presence of external interference. f Deterministic jitter: 900 kHz to 750 MHz. g Deterministic jitter: 1.800 kHz to 1.500 MHz. h The deterministic and total values in this table apply to jitter after application of a single pole high-pass frequency-

weighting function that progressively attenuates jitter at 20 dB/decade below a frequency of ((bit rate) / 1.667).

Deterministic

jitter

e,g,h

Total

jitter

9.5.2.3.3 Compliant jitter test pattern (CJTPAT)

The CJTPAT within a comp liant pro tocol frame is used f or all jitte r testing unl ess otherw ise specif ied. Se e the SAS Interface Manual for def inition of the requ ired pattern on the phys ical link and information re garding spe cial considerations for scrambling and running disparity.

9.5.2.3.4 Impedance specifications

Table 31 defines impedance requirements.

Table 31: Impedance requirements (Sheet 1 of 2)

Requirement Units 1.5 Gbps 3.0 Gbps

Time domain reflectometer rise time 20 % to 80 %

a,b

ps 100 50 Media (PCB or cable) Differential impedance Differential impedance imbalance Common mode impedance

b,c,d

b,c,d,g

ohm 100 ± 10 100 ± 10

ohm 5 5

ohm 32.5 ± 7.5 32.5 ± 7.5 Mated connectors Differential impedance Differential impedance imbalance Common mode impedance

b,c,d

b,c,d,g

ohm 100 ± 15 100 ± 15

ohm 5 5

ohm 32.5 ± 7.5 32.5 ± 7.5 Receiver termination Differential impedance Differential impedance imbalance Receiver termination time constant

b,e,f

b,e,f,g

b,e,f

ohm 100 ± 15 100 ± 15

ohm 5 5

ps 150 max 100 max

66 Savvio 10K.2 SAS Product Manual, Rev. B

Table 31: Impedance requirements (Sheet 2 of 2)

receiver termination time constant

Requirement Units 1.5 Gbps 3.0 Gbps

Common mode impedance

b,e

ohm 20 min/40 max 20 min/40 max Transmitter source termination Differential impedance Differential impedance imbalance Common mode impedance

a All times indicated for time domain reflectometer measurements are recorded times. Recorded times are twice the

transit time of the time domain reflectometer signal. b All measurements are made through mated connector pairs. c The media impedance measurement identifies the impedance mismatches present in the media when terminated in

its characteristic impedance. This measurement excludes mated connectors at both ends of the media, when

present, but includes any interm ediate con nectors or spl ices. The mated connec tors meas urement appli es only to the

mated connector pair at each end, as applicable. d Where the media has an electrical length of > 4 ns the procedure detailed in SFF-8410, or an equivalent procedure,

shall be used to determine the impedance. e The receiver termination impedance specification applies to all receivers in a TxRx connection and covers all time

points between the connector nearest the receiver, the receiver, and the transmission line terminator. This

measurement shall be made from that connector. f At the time point correspondi ng to th e con ne cti on of the rec eiv er to th e trans m is sion li ne the input capacit a nc e of the

receiver and its connection to the transmission line may cause the measured impedance to fall below the minimum

impedances specified in this table. The area of the impedance dip (amplitude as ρ, the reflection coefficient, and

duration in time) caused by this capacitance is the receiver termination time constant. The receiver time constant

shall not be greater than the values shown in this table. An approximate value for the receiver termination time

constant is giv en b y t he p r od uct of the amplitude of the dip (as

point. The ampli tude i s de fined as be ing th e dif fere nce i n the refl ection coef fic ient between the re flecti on co ef ficien t at

the nominal impedance and the reflection coefficient at the minimum impedance point. The value of the receiver

excess input capacitance is given by the following equation:

b,g

ohm 60 min/115 max 60 min/115 max ohm 5 5 ohm 15 min/40 max 15 min/40 max

ρ) and its wid th (in p s ) me as ured at the half amplitude

--------------------------------------------------------------------------------- -=

R0 RR

()

where (R0 || RR) is the parallel combination of the transmission line characteristic impedance and

termination resistance at the receiver.

g The difference in measured im pe dan ce to g round on the plus and minus terminals on the in terc on nec t, transmitter or

receiver, with a differential test signal applied to those terminals.

9.5.2.4 Electrical TxRx connections

TxRx connections may be divided into TxRx connection segments. In a single TxRx connection individual TxRx connection segme nts may be for med from di fferin g me dia and m ate ri al s, inc lu din g tr aces on p ri nte d wir ing boards and optic al fiber s. This su bclause ap plies onl y to TxRx co nnection segments that are form ed from electrically conducti ve media .

Each electrical TxRx co nnection segment shall comply with the im pedance requirements of table 31 for the media from which they are formed. An equalizer network, if present, shall be part of the TxRx connection.

TxRx connections that are composed entirely of electrically conducting media shall be applied only to homogenous ground applicati ons (e.g., betwe en devi ces withi n an encl osur e or rack, or between enclo sures in tercon nected by a common ground return or ground plane).

9.5.2.4.1 Transmitter characteristics

The drive are D.C. coupled.

Savvio 10K.2 SAS Product Manual, Rev. B 67

A combination of a zero-length test load and the transmitter compliance transfer function (TCTF) test load

6–

10–

20–

6–

10–

20–

methodology is us ed for the spe cification of transmitte r characterist ics. This m ethodology spe cifies the trans mitter signal at the test points on the requir ed test loads. The tra nsmitter uses the same settings (e.g., preemphasis, voltage swing ) with both the ze ro -leng th te st load and the TCTF tes t l oad . The s i gnal spec if ic ati ons at IR are met under each of these loading conditions.

The TCTF is the mathematical statement of the transfer function through which the transmitter shall be capable of producing acce ptable signals as defined by a recei ve mask. The tra nsmission magnitud e response of th e TCTF in dB is given by the following equation for 1.5 Gbps:

for 50 MHz < f < 1.5 GHz, and:

20–log10e() 65, 10

××()20, 10

f××()33, 10

f2××()++()× dB×=

for 1.5 GHz < f < 5.0 GHz, where:

a) f is the signal frequency in hertz.

The transmission magnitude response of the TCTF in dB is given by the following equation for 3.0 Gbps:

for 50 MHz < f < 3.0 GHz, and:

for 3.0 GHz < f < 5.0 GHz, where:

a) f is the signal frequency in hertz.

The TCTF is used to specify the requirements on transmitters that may or may not incorporate pre-emphasis or other forms of compensation. A compliance interconnect is any physical interconnect with loss equal to or greater than that of the T CT F at the abo ve frequencies that also mee ts the IS I lo ss r equ irements shown in ure 20 and figure 21.

Compliance with the TC TF te st l oa d r equ ireme n t is v eri fie d by me asu r ing the s i gna l pr od uced by the transmitter through a physical compliance interconnect attached to the transmitter.

Compliance with the zero-l ength test load requirement verified by measurement made acr oss a load equivalent to the zero-length load shown in figure 19.

5 437,–dB=

20–log10e() 65, 10

10 884,–dB=

××()20, 10

f××()33, 10

f2××()++()× dB×=

fig-

For both test load cases , the tr ansmitter deli vers the output v oltages an d timing li sted i n table 28 at t he desi gnated compliance points. The default mask is IR for intra-cabinet TxRx connections. The eye masks are shown in

9.5.2.1.

68 Savvio 10K.2 SAS Product Manual, Rev. B

Figure 18 shows the compliance interconnect test load.

Tx+

10 nF 50 ohm

10 nF

Probe

points

50 ohm

TCTF

Tx-

SAS internal connector

Figure 18. Compliance interconnect test load

Figure 19 shows the zero-length test load.

Tx+

Tx-

10 nF

50 ohm

Probe points

50 ohm

SAS internal connector

Figure 19. Zero-length test load

Figure 20 shows an ISI loss example at 3.0 Gbps.

(dB)

Compliance interconnect magnitude response and

ISI loss

> 3.9 dB

10.9 dB

0.3

Figure 20. ISI loss example at 3.0 Gbps

ISI loss example for 3.0 Gbps

Sample compliance interconnect

3.01.5

Frequency (GHz)

Savvio 10K.2 SAS Product Manual, Rev. B 69

Figure 21 shows an ISI loss example at 1.5 Gbps.

(dB)

Compliance interconnect magnitude response and ISI

ISI loss

> 2.0 dB

5.4 dB

0.15

loss example for 1.5 Gbps

Sample compliance interconnect

1.50.75

Frequency (GHz)

Figure 21. ISI loss example at 1.5 Gbps

9.5.2.5 Receiver characteristics

The drive receiver is A.C. coupled. The receive network terminates the TxRx connection by a 100 ohm equivalent impedance as specified in table 31.

The receiver operates wit hin a BE R of 10

-12

when a SAS signal with valid v ol tage and ti min g ch ar acter ist ics is delivered to the compliance p oint from a 1 00 ohm source. The received SAS signal are considered valid if it meets the voltage and timing limits specified in

table 28.

Additionally the rec eiver operates within the BE R objective when the signal at a receiving phy has th e additional sinusoida l jitter present that is specified in table 30 and the common mode signal VCM over frequency range FCM as specified in table 26. T he j itter tol erance is s hown in Figu re 17 for all Rx complian ce po ints in a TxRx connection. The figure given assumes that any external interference occurs prior to the point at which the test is applied. Wh e n te st ing th e j it ter to ler a nce c apabil it y of a rec ei v er, the additional 0.1 UI of sinusoidal ji tter may be reduced by an amount propor tional to the actual externa lly induced interference betwe en the applic a tion point of the tes t and the input to the receiving phy. The additional jitter red uces the eye open ing in both voltage and time.

70 Savvio 10K.2 SAS Product Manual, Rev. B

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www.seagate.com for informatio n about Seagate products and servic es. Worldwide support is availab le 24

hours daily by e-mail for your questions.

Presales Support: www.seagate.com/support/email/email_presales.html or Presales@Seagate.com Technical Support: www.seagate.com/support/email/email_disc_support.html or DiscSupport@Seagate.com

mySeagate

my.seagate.com is the industry’s first Web portal desi gned specifically for OEMs and distribu tors. It provides self-service a ccess to cr itical app lications, personaliz ed content and the tool s that allo w our partner s to man age their Seagate account fun ctions. Submit prici ng requests, order s and returns through a singl e, passwordprotected Web interface—anytime, anywhere in the world.

spp.seagate.com

spp.seagate.com supports Seagate resel lers with product i nformation, program benefits and sales tools. You may register for customized communications that are not available on the web. These communications contain product launch, EO L , p ri cing, pr om oti ons a nd oth er c han nel -re late d inf or mati on . To learn more about the ben efits or to register, go to spp.seagate.com, any time, from anywhere in the world.

Seagate Service Centers

Presales Support

Our Presales Suppo rt staff can help you deter mine which Seagate products are best suited for your specific application or computer system, as well as product availability and compatibility.

Technical Support

Seagate technical support is avail able to assis t you online at support.seagate.com or through one of our call centers. Have your system configuration information and your “ST” model number available.

SeaTDD™ (+1-405-324-3655) is a telecommunica tions devi ce fo r the deaf (TD D). You can send question s or comments 24 hours d aily and e xcha nge m essag es wi th a technic al s upport speci alist during nor mal b usine ss hours for the call center in your region.

Customer Service Operations

Warranty Service

Seagate offers worldwide customer supp ort for Seagate drives. Seagate dis tributors, OEMs and other direct customers should contact their Seagate Customer Service Operations (CSO) representative for warrantyrelated issues. Resell ers or end users of dri ve products should contact their pl ace of purchase or one of th e Seagate CSO warranty center s for assis tance. Have your drive’s “ST” mod el number an d serial nu mber avai l able.

Savvio 10K.2 SAS Product Manual, Rev. B 71

Data Recovery Services

Seagate offers data recovery services for all formats and all brands of storage media. Our Data Recovery Services labs are currently located in North America. To speak with a case management representative, call 1-800-475-0143. Additi onal information , including an on line request for m and data loss preventi on resources, is available at

www.datarecovery.seagate.com.

Authorized Service Centers

In some locations outside the US, you can contact an Authorized Service Center for service.

USA/Canada/Latin America support services

Seagate Service Centers

Presales Support

Call center Toll-free Direct dial FAX

Americas 1-877-271-3285

+1-405-324-4730

+1-405-324-4704

Technical Support

Call center Toll-free Direct dial FAX

Americas 1-800-SEAGATE

+1-405-324-4700

+1-405-324-3339

Customer Service Operations

Warranty Service

Call center Toll-free Direct dial FAX / E-mail

USA, Canada, Mexico and 1-800-468-3472 Latin America

Brazil Jabil Industrial Do Brasil — +55-11-4191-4761 +55-11-4191-5084 LTDA

— +1-956-664-4725

SeagateRMA.br@jabil.com

Data Recovery Services

Call center Toll-free Direct dial FAX

USA, Canada, 1-800-475-01435 +1-905-474-2162 1-800-475-0158 and Mexico +1-905-474-2459

Hours of operation are 8:00 A.M. to 7:00 P.M., Monday through Friday (Central time).

Hours of operation are 8:00 A.M. to 8:00 P.M., Monday through Friday (Central time).

Hours of operation are 8:00 A.M. to 5:00 P.M., Monday through Friday (Central time).

Authorized Service Center

Hours of operation are 8:00 A.M. to 8:00 P.M., Monday through Friday, and 9:00 A.M. to 5:00 P.M., Saturday (Eastern time).

European support services

For presales and technic al support in Europe , dial the Seagate Serv ice Center toll-free nu mber for your specific location. If yo ur location is not listed h ere, dial our presales and tech nical support call cen ter at +1-405324-4714 from 8:00 The presales and technical support call center is located in Oklahoma City, USA.

For European warranty service, dial the toll-free number for your specific location. If your location is not listed here, dial our Euro pean CS O warr an ty ce nter at +31-20-316-7222 fr om 8:3 0 time) Monday through Friday. The CSO warranty center is located in Amsterdam, The Netherlands.

A.M. to 11:45 A.M. and 1:00 P.M. to 5:00 P.M. (Central Europe time) Monday through Friday.

A.M. to 5:00 P.M. (Central Europe

72 Savvio 10K.2 SAS Product Manual, Rev. B

Seagate Service Centers

Toll-free support numbers

Call center Presales and Technical Support Warranty Service

Austria — 00 800-47324289 Belgium 00 800-47324283 (00 800-4SEAGATE) 00 800-47324289 Denmark 00 800-47324283 00 800-47324289 France 00 800-47324283 00 800-47324289 Germany 00 800-47324283 00 800-47324289 Ireland 00 800-47324283 00 800-47324289 Italy 00 800-47324283 00 800-47324289 Netherlands 00 800-47324283 00 800-47324289 Norway 00 800-47324283 00 800-47324289 Poland 00 800-311 12 38 00 800-311 12 38 Spain 00 800-47324283 00 800-47324289 Sweden 00 800-47324283 00 800-47324289 Switzerland 00 800-47324283 00 800-47324289 Turkey 00 800-31 92 91 40 00 800-31 92 91 40 United Kingdom 00 800-47324283 00 800-47324289

FAX services—All Europe (toll call)

Technical Support +1-405-324-3339 Warranty Service +31-20-653-3513

Africa/Middle East support services

For presales and tec hnical suppo rt in Africa and the Midd le East, dia l our presal es and technic al support c all center at +1-405-32 4-471 4 from 8:00

A.M. to 11:45 A.M. and 1:00 P.M. to 5:00 P.M. (Central Europe time) Mon-

day through Friday. The presales and technical support call center is located in Oklahoma City, USA. For warranty service in Africa and the Middle East, dial our Euro pean CSO warranty center at +31-20-316-

7222 from 8:30

A.M. to 5:00 P.M. (Centr al Euro pe time ) Mond ay throu gh Frid ay, or send a FAX to +31-20-653-

3513. The CSO warranty center is located in Amsterdam, The Netherlands.

Asia/Pacific support services

For Asia/Pacific pr esales and technical s upport, dial the toll-fre e number for your specific location. The Asia/ Pacific toll-free numbers are available from 6:00 ern time) Monday through Friday, except as noted. If your location is not listed here, direct dial one of our technical support locations.

Warranty service is available from 9:00 A.M. to 5:00 P.M., Monday through Friday. Warranty service for Australia is available from 1 0:00

A.M. to 7:00 P.M., April thr ough October, and from 11 :00 A.M. to 8:00 P.M. November

through March (Australian Eastern time) Monday through Friday.

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

Savvio 10K.2 SAS Product Manual, Rev. B 73

Seagate Service Centers

Call center Toll-free Direct dial FAX

Australia 1800-14-7201 — — China (Mandarin)

1, 4

800-810-9668 +86-10-6225-5336 — Hong Kong 800-90-0474 — — Hong Kong (Cantonese)

2, 4

India

1, 4

001-800-0830-1730 — —

1-800-180-1104 — — Indonesia 001-803-1-003-2165 — —

3, 4

Japan Korea

3, 4

0034 800 400 554 — —

007 98 8521 7635 — — Malaysia 1-800-80-2335 — — New Zealand 0800-443988 — — Singapore 800-1101-150 — +65-6488-7525 Taiwan (Mandarin)

1, 4

00-800-0830-1730 — — Thailand 001-800-11-0032165 — —

Customer Service Operations

Warranty Service

Call center Toll-free Direct dial FAX

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

India

— +91-44-42015000 +91-44-42015184

Hours of operation are 8:30 A.M. to 5:30 P.M., Monday through Friday (Australian Western time).

Hours of operation are 9:00 A.M. to 6:00 P.M., Monday through Saturday.

Hours of operation are 9:30 A.M. to 6:30 P.M., Monday through Friday.

Authorized Service Center

74 Savvio 10K.2 SAS Product Manual, Rev. B

Index

Numerics

12 volt

pins 60

5 volt pins 60

abort task set function 45 AC coupling 60 AC power requirements 25 ACA active status 55 ACA active, faulted initiator status 55 acoustics 34 active LED Out signal 60 actuator 9

assembly design 7 adaptive caching 55 air cleanliness 33 air flow 30, 42

illustrated 42 air inlet 42 altitude 31 ambient 30 ambient temperature 30, 42 ANSI documents

SCSI 5

Serial Attached SCSI 5 asynchronous event notification 55 audible noise 3 auto write and read reallocation

programmable 8 automatic contingent allegiance 55 average idle current 25, 26 average rotational latency 11

Background Media Scan 39 backpanel 59 BMS 39 buffer

data 8

space 13 busy status 55 bytes per surface 11 bytes per track 11

cache operation 13 cache segments 14 caching write data 14 Canadian Department of Communications 3

capacity

unformatted 11 case temperature 30 check condition statu s 55 class B limit 3 clear ACA function 45 clear task set function 45 commands supported 47 condensation 31 condition met/good status 55 connector

illustrated 59

requirements 59 continuous vibration 33 cooling 42 CRC

error 18 Current profiles 27 customer servic e 24

DAR 40 data block size

modifing the 9 data buffer to/from disc media 12 data heads

read/write 11 data rate

internal 11 data transfer rate 12 DC power 59

requirements 25 defect and error management 37 defects 37 Deferred Auto-Reallocation 40 deferred error handling 55 description 7 dimensions 35 disc rotation speed 11 drive 33 drive characteris tic s 11 drive failure 18 drive mounting 35, 43 drive select 59 dual port support 46

electrical

description of connector 59

signal characteristi cs 60

specifications 25 electromagnetic compatibility 3 electromagnetic susceptibility 34 EMI requirements 3

Savvio 10K.2 SAS Product Manual, Rev. B 75

environment 42 environmental

limits 30 requirements 17

environmental control 33 error

management 37 rates 17

errors 37 European Union Restr iction of Hazardous Su bstanc-

es 5

FCC rules and regulations 3 features 8

interface 45

firmware 8

corruption 50 flawed sector reallocati on 8 Format command execution time 12 front panel 35 function

complete, code 00 45

not supported, code 05 45

reject, code 04 45

Good status 55 gradient 30, 31 ground shift noise 60 grounding 43

HDA 42, 43 head and disc assembly (HDA) 7 head and disc assembly. See HDA heads

read/write data 11 heat removal 42 heat source 42 host equipment 43 hot plugging the drive 18 humidity 31 humidity limits 30

Idle Read After Write 40 inquiry data 51 installation 41

guide 5 interface

commands supported 47

error rate 17

errors 18 illustrated 56 physical 56 requirements 45

interleave

minimum 12 intermediate/condition met/good status 55 intermediate/good status 55 internal data rate 11 internal defects/errors 37 internal drive characteristics 11 IRAW 40

jumpers 41

latency

average rotational 11, 12 logical block address 13 logical block realloc ati on scheme 8 logical block size 8, 12 logical segments 13

maintenance 17 maximum delayed motor start 25, 26 maximum start current 25, 26 mean time between failure. See MTBF media description 8 Media Pre-Scan 40 minimum sector interleave 12 miscellaneous feature support

Adaptive caching 55

Asynchronous event notification 55

Automatic contingent allegiance 55

Deferred error handling 55

Parameter rounding 55

Queue tagging 55

Reporting actual retry count 55

Segmented caching 55

SMP = 1 in Mode Select command 55

Synchronized (locked) spindle operation 55

Zero latency read 55 miscellaneous status support

ACA active 55

ACA active, faulted initiator 55

Busy 55

Check condition 55

Condition met/good 55

Good 55

Intermediate/condition met/good 55

Intermediate/good 55

Reservation conflict 55

76 Savvio 10K.2 SAS Product Manual, Rev. B

Task set full 55

miscorrected media data 17 Mode sense

data, table 51, 53

mounting 43

holes 43

orientations 41 mounting configuration 35 mounting configuration dimensions 35 MTBF 17, 18, 30

noise

audible 3 noise immunity 27 non-operating 31, 33

temperature 30 non-operating vibration 33

office environment 33 operating 31, 33 option selection 59 options 10 orientation 31 out-of-plane distortion 43

package size 32 package test specification 5 packaged 32 parameter rounding 55 PCBA 43 peak bits per inch 11 peak operating current 25, 26 peak-to-peak measurements 27 performance characteristics

detailed 11

general 12 performance degradation 31 performance highlights 8 physical damage 33 physical interface 56 physical specifications 25 pin descriptions 59 power 60

dissipation 29

requirements, AC 25

requirements, DC 25

sequencing 27 power distribution 3 prefetch/multi-seg men ted ca ch e contr ol 13 preventive maintenance 17

queue tagging 55

radio interference regulations 3 RCD bit 13 read error rates 17, 37 read/write data heads 11 receivers 60 recommended mounting 32 Recoverable Errors 17 recovered media data 17 reference

documents 5 relative humidity 31 reliability 9

specifications 17 reliability and service 18 repair and return information 24 reporting actual retry count 55 reservation conflict status 55 resonance 31 return information 24 RoHS 5 rotation speed 11

safety 3 SAS

interface 59

physical interface 56

task management functions 45 SAS documents 5 SAS Interface Manual 3, 5 SCSI interface

commands supported 47 seek error

defined 18

rate 17 seek performance characteristics 11 seek time

average typical 11

full stroke typical 11

single track typical 11 segmented caching 55 Self-Monitoring Analysis and Reporting Technology

9, 19 Serial Attached SCSI (SAS) Interface Manual 1 shielding 3 shipping 23 shipping container 30 shock 31

and vibration 31

shock mount 43

Savvio 10K.2 SAS Product Manual, Rev. B 77

signal

characteristics 60 single-unit shipping pack kit 10 SMART 9, 19 SMP = 1 in Mode Select command 55 spindle brake 8 standards 3 start/stop time 13 support services 71 surface stiffness

allowable for non-flat surface 43 switches 41 synchronized spind le

operation 55 system chassis 43

task management functions 45

Abort task set 45

Clear ACA 45

Clear task set 45

terminate task 45 task management response codes 45

Function complete 00 45

Function not supported 05 45

Function reject 04 45 task set full status 55 technical support servic es 71 temperature 30, 42

ambient 30

case 30

gradient 30

limits 30

non-operating 30

regulation 3

See also cooling terminate task function 45 terminators 41 tracks per inch 11 tracks per surface 11 transmitters 60 transporting the drive 23

zero latency read 55 zone bit recording (ZBR) 8

unformatted 9 Unrecoverable Errors 17 unrecovered media data 17

vibration 31, 33

warranty 23

78 Savvio 10K.2 SAS Product Manual, Rev. B

Seagate Technology LLC

920 Disc Drive, Scotts Valley, California 95066-4544, USA

Publication Number: 100384760, Rev. B, Printed in USA

Seagate ST9146802SS, ST973402SS 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

2.1.3 European Union Restriction of Hazardous Substances (RoHS)

2.2 Reference documents

3.0 General description

3.1 Standard features

3.2 Media description

3.3 Performance

3.4 Reliability

3.5 Formatted capacities

3.6 Programmable drive capacity

3.7 Factory-install ed accessories

3.8 Factory-install ed options

4.0 Performance characteristics

4.1 Internal drive characteri stics

4.2 Seek performance characteristics

4.2.1 Access time

4.2.2 Format command execution time for 512-byte sectors (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

5.0 Reliability specifications

5.1 Error rates

5.1.1 Recoverable Errors

5.1.2 Unrecoverable Erro rs

5.1.3 Seek errors

5.1.4 Interface errors

5.2 Reliability and service

5.2.1 Annualized Failure Rate (AFR) and Mean Time Between Failure (MTBF)

5.2.2 Preventive maintenance

5.2.3 Hot plugging the drive

5.2.4 S.M.A.R.T.

5.2.5 Thermal monitor

5.2.6 Drive Self Test (DST)

5.2.6.1 DST failure definition

5.2.6.2 Implementation

5.2.6.2.1 State of the drive prior to testing

5.2.6.2.2 Invoking DST

5.2.6.2.3 Short and extended tests

5.2.6.2.4 Log page entries

5.2.6.2.5 Abort

5.2.7 Product warranty

6.0 Physical/electrical spe cifications

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

6.4 Environmental limits

6.4.1 Temperature

6.4.2 Relative humidity

6.4.3 Effective altitude (sea level)

6.4.4 Shock and vibration

6.4.4.1 Shock

6.4.4.2 Vibration

6.4.5 Air cleanliness

6.4.6 Corrosive environment

6.4.7 Acoustics

6.4.8 Electromagnetic susceptibility

6.5 Mechanical specifications

7.0 Defect and error management

7.1 Drive internal defects/errors

7.2 Drive error recovery procedures

7.3 SAS system errors

7.4 Background Media Scan

7.5 Media Pre-Scan

7.6 Deferred Auto-Reallocation

7.7 Idle Read After Wr ite