Product Manual Savvio 10K.2 SAS ® ST9146802SS ST973402SS 100384760 Rev.
©2007, Seagate Technology LLC All rights reserved. Publication number: 100384760, Rev. D August 2007 Seagate, Seagate Technology and the Wave logo are registered trademarks of Seagate Technology LLC in the United States and/or other countries. Savvio, SeaTools and SeaTDD are either trademarks or registered trademarks of Seagate Technology LLC or one of its affiliated companies in the United States and/or other countries.
Contents 1.0 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2.0 Applicable standards and reference documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.1 Standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.1.1 Electromagnetic compatibility. . . . . . . . . . . . . . . . . . . . . . . . . .
6.4.2 Relative humidity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.4.3 Effective altitude (sea level) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.4.4 Shock and vibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.4.5 Air cleanliness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.4.6 Corrosive environment . . . .
List of Figures Figure 1. Figure 2. Figure 3. Figure 4. Figure 5. Figure 6. Figure 7. Figure 8. Figure 9. Figure 10. Figure 11. Figure 12. Figure 13. Figure 14. Figure 15. Figure 16. Figure 17. Figure 18. Figure 19. Figure 20. Figure 21. Savvio 10K.2 SAS disc drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 ST9146802SS current profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.0 Scope This manual describes Seagate Technology® LLC, Savvio® 10K.2 SAS (Serial Attached SCSI) disc drives. Savvio drives support the SAS Protocol specifications to the extent described in this manual. The SAS Interface Manual (part number 100293071) describes the general SAS characteristics of this and other Seagate SAS drives. Figure 1. Savvio 10K.2 SAS disc drive Savvio 10K.2 SAS Product Manual, Rev.
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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 equipment to provide adequate power and environment for optimum performance and compliance with applicable industry and governmental regulations. Special attention must be given in the areas of safety, power distribution, shielding, audible noise control, and temperature regulation.
2.1.2 Electromagnetic compliance Seagate uses an independent laboratory to confirm compliance with the directives/standards for CE Marking and C-Tick Marking. The drive was tested in a representative system for typical applications. The selected system represents the most popular characteristics for test platforms. The system configurations include: • • • • • • • Typical current use microprocessor 3.
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 suppliers regarding the presence of RoHS substances in these parts and materials.
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3.0 General description Savvio drives combine Tunneling Magnetoresistive (TMR) heads and a Serial Attached SCSI (SAS) interface to provide high performance, high capacity data storage for a variety of systems including engineering workstations, network servers, mainframes, and supercomputers. The Serial Attached SCSI interface is designed to meet next-generation computing demands for performance, scalability, flexibility and high-density storage requirements.
3.1 Standard features Savvio drives have the following standard features: • • • • • • • • • • • • • • • • • • • • • • • • • • • • Perpendicular recording technology 1.5 / 3 Gbit Serial Attached SCSI (SAS) interface 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.
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 selectable at format time and must be a multiple of 4 bytes.
3.8 Factory-installed options You may order the following items which are incorporated at the manufacturing facility during production or packaged before shipping. Some of the options available are (not an exhaustive list of possible options): • Other capacities can be ordered depending on sparing scheme and sector size requested. • Single-unit shipping pack. The drive is normally shipped in bulk packaging to provide maximum protection against transit damage.
4.0 Performance characteristics This section provides detailed information concerning performance-related characteristics and features of Savvio drives. 4.1 Internal drive characteristics Drive capacity Read/write data heads Bytes per track Bytes per surface Tracks per surface (total) Tracks per inch Peak bits per inch Areal density Internal data rate Disc rotation speed Avg rotational latency 4.2 ST9146802SS 146.8 4 489,984 36,704 75,373 150,000 925,000 135 660-1054 10k 3.0 ST973402SS 73.
4.2.2 Format command execution time for 512-byte sectors (minutes) ST9146802SS Maximum (with verify) Maximum (without verify) 4.2.
4.3 Start/stop time The drive accepts the commands listed in the SAS Interface Manual 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).
Case B—A Read command requests data, and at least one requested logical block is not in any segment of the cache: 1. The drive fetches the requested logical blocks from the disc and transfers them into a segment, and then from there to the host in accordance with the Mode Select Disconnect/Reconnect parameters, page 02h. 2. If the prefetch feature is enabled, refer to section 4.5.2 for operation from this point.
When prefetch (read look-ahead) is enabled (enabled by DRA = 0), the drive enables prefetch of contiguous blocks from the disc when it senses that a prefetch hit will likely occur. The drive disables prefetch when it decides that a prefetch hit is not likely to occur. Savvio 10K.2 SAS Product Manual, Rev.
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5.0 Reliability specifications The following reliability specifications assume correct host and drive operational interface, including all interface timings, power supply voltages, environmental requirements and drive mounting constraints. Seek error rate: Read Error Rates1 Recovered Data Unrecovered Data Miscorrected Data Interface error rate: Mean Time Between Failure (MTBF): Annualized Failure Rate (AFR): Preventive maintenance: 1.
5.1.3 Seek errors A seek error is defined as a failure of the drive to position the heads to the addressed track. After detecting an initial seek error, the drive automatically performs an error recovery process. If the error recovery process fails, a seek positioning error (Error code = 15h or 02h) will be reported with a Hardware error (04h) in the Sense Key. Recoverable seek errors are specified at Less than 10 errors in 108 seeks.
5.2.4 S.M.A.R.T. S.M.A.R.T. is an acronym for Self-Monitoring Analysis and Reporting Technology. This technology is intended to recognize conditions that indicate imminent drive failure and is designed to provide sufficient warning of a failure to allow you to back up the data before an actual failure occurs. Note. The drive’s firmware monitors specific attributes for degradation over time but can’t predict instantaneous drive failures.
Reporting control Reporting is controlled by the MRIE bits in the Informational Exceptions Control mode page (1Ch). Subject to the reporting method, the firmware will issue to the host an 01-5Dxx sense code. The error code is preserved through bus resets and power cycles. Determining rate S.M.A.R.T. monitors the rate at which errors occur and signals a predictive failure if the rate of degraded errors increases to an unacceptable level.
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 specify a temperature greater than 65°C in this field, the temperature is rounded 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 Primary Temperature 0001h Reference Temperature 5.2.
5.2.6.2.1 State of the drive prior to testing The drive must be in a ready state before issuing the Send Diagnostic command. There are multiple reasons why a drive may not be ready, some of which are valid conditions, and not errors. For example, a drive may be in process of doing a format, or another DST. It is the responsibility of the host application to determine the “not ready” cause.
5.2.6.2.4 Log page entries When the drive begins DST, it creates a new entry in the Self-test Results Log page. The new entry is created by inserting a new self-test parameter block at the beginning of the self-test results log parameter section of the log page. Existing data will be moved to make room for the new parameter block. The drive reports 20 parameter blocks in the log page. If there are more than 20 parameter blocks, the least recent parameter block will be deleted.
Product repair and return information Seagate customer service centers are the only facilities authorized to service Seagate drives. Seagate does not sanction any third-party repair facilities. Any unauthorized repair or tampering with the factory seal voids the warranty. 24 Savvio 10K.2 SAS Product Manual, Rev.
6.0 Physical/electrical specifications This section provides information relating to the physical and electrical characteristics of the drive. 6.1 AC power requirements None. 6.2 DC power requirements The voltage and current requirements for a single drive are shown below. Values indicated apply at the drive connector. Table 12: ST9146802SS DC power requirements ST9146802SS 1.5 Gbit mode Notes Voltage ST9146802SS 3.
Table 13: ST973402SS DC power requirements ST973402SS 1.5 Gbit mode Notes Voltage ST973402SS 3.0 Gbit mode (Amps) (Amps) (Amps) (Amps) +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 3σ [1] [4] 0.66 0.03 0.69 0.03 [1] [6] 0.65 0.31 0.81 0.34 [1] 0.79 0.37 0.84 0.39 1.41 1.17 1.43 1.
6.2.1 Conducted noise immunity Noise is specified as a periodic and random distribution of frequencies covering a band from DC to 10 MHz. Maximum allowed noise values given below are peak-to-peak measurements and apply at the drive power connector. +5v = 250 mV pp from 0 to 100 kHz to 20 MHz. +12v = 800 mV pp from 100 Hz to 8 KHz. 450 mV pp from 8 KHz to 20 KHz. 250 mV pp from 20 KHz to 5 MHz. 6.2.2 Power sequencing The drive does not require power sequencing.
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.
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 read operations, refer to the following I/O rate curve (see Figure 4). Locate the typical I/O rate for a drive in your system on the horizontal axis and read the corresponding +5 volt current, +12 volt current, and total watts on the vertical axis. To calculate BTUs per hour, multiply watts by 3.4123.
6.4 Environmental limits Temperature and humidity values experienced by the drive must be such that condensation does not occur on any drive part. Altitude and atmospheric pressure specifications are referenced to a standard day at 58.7°F (14.8°C). Maximum wet bulb temperature is 82°F (28°C). 6.4.1 Temperature a.
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.
d. Packaged Disc drives shipped as loose load (not palletized) general freight will be packaged to withstand drops from heights as defined in the table below. For additional details refer to Seagate specifications 30190-001 (under 100 lbs/45 kg) or 30191-001 (over 100 lbs/45 Kg). Package size Packaged/product weight Drop height <600 cu in (<9,800 cu cm) 600-1800 cu in (9,800-19,700 cu cm) >1800 cu in (>19,700 cu cm) >600 cu in (>9,800 cu cm) Any 0-20 lb (0 to 9.1 kg) 0-20 lb (0 to 9.1 kg) 20-40 lb (9.
6.4.4.2 Vibration a. Operating—normal The drive as installed for normal operation, shall comply with the complete specified performance while subjected to continuous vibration not exceeding 1-500 Hz @ 0.5 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.
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 noise on typical drives when measured according to Seagate specification 30553-001. There will not be any tones more than 24 dB above the masking noise on any drive. 6.4.8 Electromagnetic susceptibility See Section 2.1.1.1. 34 Savvio 10K.2 SAS Product Manual, Rev.
6.5 Mechanical specifications The following nominal dimensions are exclusive of the decorative front panel accessory. However, dimensions of the front panel are shown in figure below. Refer to Figure 8 for detailed mounting configuration dimensions. See Section 8.3, “Drive mounting.” Height: Width: Depth: Weight: 0.583 in 2.76 in 3.957 in 0.50 pounds 14.8 mm 70 mm 100.5 mm 0.227 kilograms Temperature Measurement Location Figure 8. Mounting configuration dimensions Savvio 10K.
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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 management involves drive internal defect/error management and SAS system error considerations (errors in communications between the initiator and the drive).
The drive firmware error recovery algorithms consists of 11 levels for read recoveries and five levels for write. Each level may consist of multiple steps, where a step is defined as a recovery function involving a single reread or re-write attempt. The maximum level used by the drive in LBA recovery is determined by the read and write retry counts. Table 14 equates the read and write retry count with the maximum possible recovery time for read and write recovery of individual LBAs.
When the RC bit is one, reallocations are disabled even if the ARRE or AWRE bits are one. The drive will still perform data recovery actions within the limits defined by the Read Retry Count, Write Retry Count, and Recovery Time Limit parameters. However, the drive does not report any unrecovered errors. Table 14: Read and write retry count maximum recovery times Read retry count Maximum recovery time per LBA (cumulative, msec) Maximum recovery time per Write retry count LBA (cumulative, msec) 0 67.
Since the background scan functions are only done during idle periods, BMS causes a negligible impact to system performance. The first BMS scan for a newly manufactured drive is performed as quickly as possible to verify the media and protect data by setting the “Start time after idle” to 5ms, all subsequent scans begin after 500ms of idle time.
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 designed to be used in a host system that provides a SAS-compatible backplane with bays designed to accomodate the drive. In such systems, the host system typically provides 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 screws.
8.2 Cooling Cabinet cooling must be designed by the customer so that the ambient temperature immediately surrounding the drive will not exceed temperature conditions specified in Section 6.4.1, "Temperature." The rack, cabinet, or drawer environment for the drive must provide heat removal from the electronics and head and disc assembly (HDA). You should confirm that adequate heat removal is provided using the temperature measurement guidelines described in Section 6.4.1.
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).
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9.0 Interface requirements This section partially describes the interface requirements as implemented on Savvio drives. Additional information is provided in the SAS Interface Manual (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.
9.2 Dual port support Savvio SAS drives have two independent ports. These ports may be connected in the same or different SCSI domains. Each drive port has a unique SAS address. The two ports run at the same link rate. The first port to successfully complete speed negotiation sets the link rate support by both ports. When the second port participates in speed negotiation, it indicates the only supported speed is the speed selected by the first port.
9.3 SCSI commands supported Table 17 lists the SCSI commands supported by Savvio drives.
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)
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
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
9.3.1 Inquiry data Table 18 lists the Inquiry command data that the drive should return to the initiator per the format given in the SAS Interface Manual.
On drives requiring unique saved values, the required unique saved values are stored into the saved values storage location on the media prior to shipping the drive. Some drives may have unique firmware with unique default values also. On standard OEM drives, the saved values are taken from the default values list and stored into the saved values storage location on the media prior to shipping. 3. Current values Current values are volatile values being used by the drive to control its operation.
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 CHG 82 0e 00 00 00 00 00 00 00 00 01 3a 00 00 00 00 82 0e 00 00 00 00 00 00 00 00 ff ff 00 00 00 00 DEF CHG 83 16 1e 3c 00 00 00 1c 00 00 03 03 02 00 00 01 00 6c 00 4e 40 00 00 00 83 16 00 00 00 00 ff ff 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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 CHG 81 0a c0 0b ff 00 00 00 05 00 ff ff 81 0a ff ff 00 00 00 00 ff 00 ff ff DEF CHG 82 0e 00 00 00 00 00 00 00 00 01 3a 00 00 00 00 82 0e 00 00 00 00 00 00 00 00 ff ff 00 00 00 00 DEF CHG 83 16 0f 1e 00 00 00 0e 00 00 03 03 02 00 00 01 00 6c 00 4e 40 00 00 00 83 16 00 00 00 00 ff ff 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0
9.4 Miscellaneous operating features and conditions Table 21 lists various features and conditions. A “Y” in the support column indicates the feature or condition is supported. An “N” in the support column indicates the feature or condition is not supported.
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, electrical, and logical characteristics are provided within this section. The operational aspects of Seagate’s SAS drives are provided in the SAS Interface Manual.. Figure 11. 56 Physical interface Savvio 10K.2 SAS Product Manual, Rev.
0.80 (6X) 5.92 7.62 4.65 0.52 2.00 (3X) 0.45 5.08 0.08 x 45 0.03 (7X) 0.10 M E 42.73 REF. 41.13 0.30 0.15 0.20 B 0.05 (2X) C A B 4.00 1.10 0.08 0.15 D 0.30 CL OF DATUM D 0.05 (4X) A B R0.30 C 0.08 (4X) SEE Detail1 33.43 0.05 B 15.875 15.875 1.27 (14X) 1.27 (6X) 0.84 5.08 0.05 (22X) 0.15 B 4.90 0.08 0.35MIN P15 P1 S7 S1 CL OF DATUM B Figure 12. SAS device plug dimensions Savvio 10K.2 SAS Product Manual, Rev.
Detail A 6.10 S14 2.25 S8 0.05 x 45 (5X) 0.05 0.40 4.85 0.30 0.05 0.10 B 0.05 X 45 (3X) CORING ALLOWED IN THIS AREA. E 4.40 0.15 R0.30 0.08 SEE Detail 2 C 1.95 0.08 A 45 0.35 3.90 0.05 SECTION C - C 0.15 SECTION A - A 0.08 0.05 CONTACT SURFACE FLUSH TO DATUM A 0.03 65 1.23 0.08 0.05 0.05 1.90 0.08 30 Detail 2 2.40 0.08 0.10 A SECTION B - B D Figure 13. 58 SAS device plug dimensions (detail) Savvio 10K.2 SAS Product Manual, Rev.
9.4.2 Physical characteristics This section defines physical interface connector. 9.4.3 Connector requirements Contact your preferred connector manufacturer for mating part information. Part numbers for SAS connectors will be provided in a future revision of this publication when production parts are available from major connector manufacturers. The SAS device connector is illustrated in Figures 12 and 13. 9.4.
NC - No connection in the drive. 9.4.6 SAS transmitters and receivers A typical SAS differential copper transmitter and receiver pair is shown in Figure 14. The receiver is AC coupling to eliminate ground shift noise. .01 TX Differential Transfer Medium Transmitter 100 TY Figure 14. SAS transmitters and receivers 9.4.7 Power RX Receiver 100 .01 RY The drive receives power (+5 volts and +12 volts) through the SAS device connector.
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 is designed to pull down the cathode of an LED. The anode is attached to the proper +3.3 volt supply through an appropriate current limiting resistor. The LED and the current limiting resistor are external to the drive. See Table 25 for the output characteristics of the LED drive signals.
9.5.2.1.2 Receive eye mask Figure 15 describes the receive eye mask. This eye mask applies to jitter after the 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). Absolute amplitude (in V) Z2 Z1 0V -Z1 -Z2 X1 0 X2 1-X1 1 1-X2 Normalized time (in UI) Figure 15.
The leading and trailing edge slopes of figure 15 shall be preserved.
9.5.2.2 Transmitter signal characteristics Table 27 specifies the signal requirements at the transmitter end of a TxRx connection as measured into the zero-length test load. All specifications are based on differential measurements. The OOB sequence is performed at signal voltage levels corresponding to the lowest supported transfer rate. Table 27 specifies the signal characteristics. Table 27: Transmitter signal characteristics Signal characteristica Units 1.5 Gbps 3.
9.5.2.3 Receiver signal characteristics Table 28 defines the compliance point requirements of the signal at the receiver end of a TxRx connection 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 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 X1a UI 0.275 0.275 X2 UI 0.50 0.50 Skewd ps 80 75 mV(P-P) 2.000 2.
9.5.2.3.2 Receiver jitter tolerance Table 30 defines the amount of jitter the receiver shall tolerate . Table 30: Receiver jitter tolerance 1.5 Gbpsa 3.0 Gbpsa Sinusoidal jitterb,c Deterministic jittere,f,h Total jitterh Sinusoidal jitterb,d Deterministic jittere,g,h Total jitterh 0.10 0.35 0.65 0.10 0.35 0.65 a Units are in UI.
Table 31: Impedance requirements (Sheet 2 of 2) Requirement Common mode impedanceb,e Units 1.5 Gbps 3.0 Gbps ohm 20 min/40 max 20 min/40 max ohm 60 min/115 max 60 min/115 max ohm 5 5 ohm 15 min/40 max 15 min/40 max Transmitter source termination Differential impedanceb Differential impedance Common mode imbalanceb,g impedanceb a All times indicated for time domain reflectometer measurements are recorded times.
A combination of a zero-length test load and the transmitter compliance transfer function (TCTF) test load methodology is used for the specification of transmitter characteristics. This methodology specifies the transmitter signal at the test points on the required test loads. The transmitter uses the same settings (e.g., preemphasis, voltage swing) with both the zero-length test load and the TCTF test load. The signal specifications at IR are met under each of these loading conditions.
Figure 18 shows the compliance interconnect test load. 10 nF 50 ohm Tx+ Probe points TCTF 50 ohm 10 nF Tx- SAS internal connector Figure 18. Compliance interconnect test load Figure 19 shows the zero-length test load. 50 ohm 10 nF Tx+ Probe points 10 nF Tx- 50 ohm SAS internal connector Figure 19. Zero-length test load Figure 20 shows an ISI loss example at 3.0 Gbps. S 21 (dB) Compliance interconnect magnitude response and ISI loss example for 3.0 Gbps 0 ISI loss > 3.9 dB -10.
Figure 21 shows an ISI loss example at 1.5 Gbps. S 21 (dB) Compliance interconnect magnitude response and ISI loss example for 1.5 Gbps 0 ISI loss > 2.0 dB -5.4 dB Sample compliance interconnect 0.15 0.75 1.5 Figure 21. ISI loss example at 1.5 Gbps 9.5.2.5 Receiver characteristics Frequency (GHz) 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.
10.0 Seagate Technology support services Internet For information regarding Seagate products and services, visit www.seagate.com. Worldwide support is available 24 hours daily by email for your questions. Presales Support: Presales@Seagate.com Technical Support: DiscSupport@Seagate.com Warranty Support: http://www.seagate.com/support/service/index.html mySeagate my.seagate.com is the industry's first Web portal designed specifically for OEMs and distributors.
Customer Service Operations Warranty Service Seagate offers worldwide customer support for Seagate products. Seagate distributors, OEMs and other direct customers should contact their Seagate Customer Service Operations (CSO) representative for warrantyrelated issues. Resellers or end users of drive products should contact their place of purchase or Seagate warranty service for assistance. Have your serial number and model or part number available.
Index Numerics 12 volt pins 60 5 volt pins 60 A 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 progra
environment 42 environmental limits 30 requirements 17 environmental control 33 error management 37 rates 17 errors 37 European Union Restriction of Hazardous Substances 5 F FCC rules and regulations 3 features 8 interface 45 firmware 8 corruption 50 flawed sector reallocation 8 Format command execution time 12 front panel 35 function complete, code 00 45 not supported, code 05 45 reject, code 04 45 G Good status 55 gradient 30, 31 ground shift noise 60 grounding 43 H HDA 42, 43 head and disc assembly (H
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 N noise audible 3 noise immunity 27 non-operating 31, 33 temperature 30 non-operating vibration 33 O office environment 33 operating 31, 33 option selection 59 options 10 orientation 31 out-of-plane distortion 43 P package size 32 package test specification 5 packaged 32 parameter rounding 55 PCBA 43 peak bits per inc
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 spindle operation 55 system chassis 43 Z zero latency read 55 zone bit recording (ZBR) 8 T 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 sup
Seagate Technology LLC 920 Disc Drive, Scotts Valley, California 95066-4544, USA Publication Number: 100384760, Rev.
