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Seagate ST31000640SS, ST3500620SS, ST3750630SS 9.0 Interface requirements

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Barracuda ES.2 SAS Product Manual, Rev. E 43

9.0 Interface requirements

This section partially describes the interface requirements as implemented on Barracuda ES.2 drives. Addi-

tional information is provided in the SAS Interface Manual (part number 100293071).

9.1 SAS features

This section lists the SAS-specific features supported by Barracuda ES.2 drives.

9.1.1 task management functions

Table 6 lists the SAS task management functions supported.

9.1.2 task management responses

Table 7 lists the SAS response codes returned for task management functions supported.

Table 6: SAS task management functions supported

Task name Supported

Abort Task Yes

Clear ACA Yes

Clear task set Yes

Abort task set Yes

Logical Unit Reset Yes

Query Task Yes

Table 7: 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

Contents

Main Page Contents Page Page Page 2.0 Standards, compliance and reference documents 2.1 Standards 2.2 Compliance 2.3 Reference documents Page 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-installed options Page 4.0 Performance characteristics 4.1 Internal drive characteristics 4.2 Seek performance 4.3 Start/stop time 4.4 Prefetch/multi-segmented cache control 4.5 Cache operation Page 5.0 Reliability specifications 5.1 Error rates 5.2 Reliability and service Page Page Page Page Page Page 6.0 Physical/electrical specifications 6.1 AC power requirements 6.2 DC power requirements Page Page Page Page Page 6.4 Environmental limits Page Page Page Page 6.5 Mechanical specifications 7.0 Defect and error management 7.1 Drive internal defects/errors 7.2 Drive error recovery procedures Page 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 Write 8.0 Installation 8.1 Drive orientation 8.2 Cooling 8.3 Drive mounting 8.4 Grounding Page 9.0 Interface requirements 9.1 SAS features 9.2 Dual port support 9.3 SCSI commands supported Page Page Page Page Page Page Page Page 9.4 Miscellaneous operating features and conditions Page 56 Barracuda ES.2 SAS Product Manual, Rev. E A BC C OF DATUM B L B CA Barracuda ES.2 SAS Product Manual, Rev. E 57 Figure 14. SAS connector dimensions Page 9.5 Signal characteristics Page Page Z1TOL Z1OPxX2OP 05,()xadditional sinusoidal jitter()X1OP X2OP X1OP Page Page Page Page S21 20log10 e() 65,10 6f05, ()20,10 10f()33,10 20f2 ()++() dB= S21 5 437,dB= S21 20log10 e() 65,10 ()20,10 ()++() dB= S21 10 884,dB= 68 Barracuda ES.2 SAS Product Manual, Rev. E Figure 20 shows the zero-length test load. SAS internal connector Figure 22. ISI loss example at 1.5 Gbps Figure 20. Zero-length test load Page Page 10.0 Seagate Technology support services Internet Seagate Service Centers Presales Support Technical Support Customer Service Operations Warranty Service Data Recovery Services Authorized Service Centers USA/Canada/Latin America support services Index Numerics A B C F G H I J O P Q R S T U V W Z