Page 2 - ©2007, Seagate Technology LLC All rights reserved.
©2007, Seagate Technology LLC All rights reserved. Publication number: 100407739, Rev. B March 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 regi...
Page 3 - Revision status summary sheet; Revision
Savvio 15K SAS Product Manual, Rev. B i Revision status summary sheet Revision Date Notes Rev. A 09/15/06 Initial release. Rev. B 03/28/07 Changes per ECR0076456.
Page 4 - ii
Page 5 - Contents
Savvio 15K SAS Product Manual, Rev. B i Contents 1.0 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2.0 Applicable standards and reference documentation . . . . . . . . . . . . . . . . . . . . . ...
Page 7 - iii; List of Figures
Savvio 15K SAS Product Manual, Rev. B iii List of Figures Figure 1. Typical ST973451SS current profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Figure 2. Typical ST936751SS current profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....
Page 9 - Scope; This manual describes Seagate Technology
Savvio 15K SAS Product Manual, Rev. B 1 1.0 Scope This manual describes Seagate Technology ® LLC, Savvio ® 15K SAS (Serial Attached SCSI) disc drives. Savvio drives support the SAS Protocol to the extent described in this manual. The SAS Interface Manual (part number 100293071) and SCSI Commands Ref...
Page 11 - Applicable standards and reference documentation; Standards; Electromagnetic compatibility
Savvio 15K SAS Product Manual, Rev. B 3 2.0 Applicable standards and reference documentation The drive has been developed as a system peripheral to the highest standards of design and construction. The drive depends on its host equipment to provide adequate power and environment for optimum performa...
Page 13 - European Union Restriction of Hazardous Substances (RoHS); Reference documents; SCSI Commands Reference Manual
Savvio 15K SAS Product Manual, Rev. B 5 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 ...
Page 15 - General description
Savvio 15K SAS Product Manual, Rev. B 7 3.0 General description Savvio drives combine giant magnetoresistive (GMR) heads, partial response/maximum likelihood (PRML) read channel electronics, embedded servo technology, and a Serial Attached SCSI (SAS) interface to provide high performance, high capac...
Page 16 - Standard features; Gbit Serial Attached SCSI (SAS) interface; Media description; performance
8 Savvio 15K SAS Product Manual, Rev. B 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 f...
Page 17 - Sector Size
Savvio 15K SAS Product Manual, Rev. B 9 3.4 Reliability • Annualized Failure Rate (AFR) of 0.55%• Mean Time Between Failures (MTBF) of 1,600,000 hours• Incorporates industry-standard Self-Monitoring Analysis and Reporting Technology (S.M.A.R.T.)• 5-year warranty 3.5 Formatted capacities Standard OEM...
Page 18 - Options; OEM drive shipped, but extra copies may be ordered.
10 Savvio 15K SAS Product Manual, Rev. B 3.8 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...
Page 19 - Performance characteristics; Internal drive characteristics; Read
Savvio 15K SAS Product Manual, Rev. B 11 4.0 Performance characteristics This section provides detailed information concerning performance-related characteristics and features of Sav-vio drives. 4.1 Internal drive characteristics ST973451SS ST936751SS Drive capacity 73.4 36.7 Gbytes (formatted, roun...
Page 21 - Cache operation; Drive transfers the requested logical blocks to the initiator.
Savvio 15K SAS Product Manual, Rev. B 13 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 comm...
Page 22 - Caching write data; Table 9 shows the mode default settings for the drive.; Prefetch operation
14 Savvio 15K SAS Product Manual, Rev. B 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 se...
Page 23 - Reliability specifications; Error rates; Recoverable Errors
Savvio 15K SAS Product Manual, Rev. B 15 5.0 Reliability specifications The following reliability specifications assume correct host and drive operational interface, including all inter-face timings, power supply voltages, environmental requirements and drive mounting constraints. 5.1 Error rates Th...
Page 24 - Seek errors; seeks. Unrecoverable seek errors; Interface errors; Reliability and service; Preventive maintenance; No routine scheduled preventive maintenance is required.; Hot plugging the drive
16 Savvio 15K SAS Product Manual, Rev. B 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 po...
Page 25 - required to insure data integrity.; Performance impact; 0 milliseconds
Savvio 15K SAS Product Manual, Rev. B 17 required to insure data integrity. 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 ...
Page 26 - Savvio drives implement a temperature warning system which:; Parameter Code; Primary Temperature
18 Savvio 15K SAS Product Manual, Rev. B Error rate is the number of errors per operation. The algorithm that S.M.A.R.T. uses to record rates of error is to set thresholds for the number of errors and their interval. If the number of errors exceeds the threshold before the interval expires, the erro...
Page 27 - Short text; DST failure definition; Recovered errors will not be reported as diagnostic failures.; Implementation; DST has two testing options:
Savvio 15K SAS Product Manual, Rev. B 19 2. Short text The most thorough option is the extended test that performs various tests on the drive and scans every logical block address (LBA) of the drive. The short test is time-restricted and limited in length—it does not scan the entire media surface, b...
Page 28 - Log page entries; The Self-Test Results Value field is set to Fh; Abort
20 Savvio 15K SAS Product Manual, Rev. B These testing options are described in the following two subsections. Each test consists of three segments: an electrical test segment, a servo test segment, and a read/verify scan segment. Short test (Function Code: 001b) The purpose of the short test is to ...
Page 31 - Physical/electrical specifications; AC power requirements; DC power requirements; Notes
Savvio 15K SAS Product Manual, Rev. B 23 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 ar...
Page 32 - General DC power requirement notes.; The +5V and +12V supplies should employ separate ground returns.
24 Savvio 15K SAS Product Manual, Rev. B [1] Measured with average reading DC ammeter. Instantaneous +12V current peaks will exceed these val-ues. Power supply at nominal voltage. N (number of drives tested) = 6, 35 Degrees C ambient. [2] For +12 V, a –10% tolerance is allowed during initial spindle...
Page 35 - Power dissipation
Savvio 15K SAS Product Manual, Rev. B 27 6.3 Power dissipation ST973451SS in 3 Gbit operation Typical power dissipation under idle conditions in 3Gb operation is 5.93 watts (20.23 BTUs per hour). To obtain operating power for typical random read operations, refer to the following I/O rate curve (see...
Page 37 - Environmental limits; Temperature; Location of the HDA temperature check point; Relative humidity; The values below assume that no condensation on the drive occurs.
Savvio 15K SAS Product Manual, Rev. B 29 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 we...
Page 38 - b. Operating—abnormal
30 Savvio 15K SAS Product Manual, Rev. B 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 limits specified in this document are measured dire...
Page 39 - Any
Savvio 15K SAS Product Manual, Rev. B 31 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 ...
Page 40 - Vibration; Operating normal translational random flat profile; Air cleanliness
32 Savvio 15K SAS Product Manual, Rev. B 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 10-500 Hz @ 1.0 G (zero to peak) Vibration may be applied in the X, Y...
Page 42 - Mechanical specifications; Mounting configuration dimensions
34 Savvio 15K SAS Product Manual, Rev. B 6.5 Mechanical specifications Refer to Figure 9 for detailed mounting configuration dimensions. See Section 8.3, “Drive mounting.” Figure 9. Mounting configuration dimensions Height: 0.583 in 14.8 mm Width: 2.76 in 70 mm Depth: 3.957 in 100.5 mm Weight: 0.50 ...
Page 43 - Defect and error management; Drive internal defects/errors
Savvio 15K SAS Product Manual, Rev. B 35 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 err...
Page 44 - SAS system errors; Read and write retry count maximum recovery times
36 Savvio 15K SAS Product Manual, Rev. B 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 re-read or re-write attempt. The maxi...
Page 46 - Idle Read After Write
38 Savvio 15K SAS Product Manual, Rev. B 7.7 Idle Read After Write 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 recently written data from the media and compares it to valid write com...
Page 47 - Installation; Power is supplied through the SAS connector.; Physical interface; Drive orientation
Savvio 15K SAS Product Manual, Rev. B 39 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 accomod...
Page 48 - Cooling; Air flow
40 Savvio 15K SAS Product Manual, Rev. B 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 f...
Page 51 - Interface requirements; SAS features; task management functions; Table 5 lists the SAS task management functions supported.; Task management responses; Task name; Task management response codes; Function name
Savvio 15K SAS Product Manual, Rev. B 43 9.0 Interface requirements This section partially describes the interface requirements as implemented on Savvio drives. Additional infor-mation is provided in the SAS Interface Manual (part number 100293071). 9.1 SAS features This section lists the SAS-specif...
Page 52 - Dual port support; Subject to buffer availability, the Savvio drives support:
44 Savvio 15K SAS Product Manual, Rev. B 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 ...
Page 53 - SCSI commands supported; Commands supported by Savvio SAS family drive; Command name
Savvio 15K SAS Product Manual, Rev. B 45 9.3 SCSI commands supported Table 7 lists the SCSI commands supported by Savvio drives. Table 7: 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 Un...
Page 54 - Commands supported by Savvio SAS family drive (continued)
46 Savvio 15K SAS Product Manual, Rev. B 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 Backg...
Page 57 - Mode Sense data; Default values; Bytes
Savvio 15K SAS Product Manual, Rev. B 49 9.3.1 Inquiry data Table 8 lists the Inquiry command data that the drive should return to the initiator per the format given in the SAS Interface Manual. Table 8: Savvio inquiry data * Copyright year (changes with actual year). ** SCSI Revision support. See t...
Page 59 - CHG 9c 0a 9d 0f ff ff ff ff ff ff ff ff
Savvio 15K SAS Product Manual, Rev. B 51 Table 9: Mode Sense data default and changeable values for ST973451SS 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...
Page 61 - Miscellaneous operating features and conditions; Miscellaneous features; Miscellaneous status; Supported
Savvio 15K SAS Product Manual, Rev. B 53 9.4 Miscellaneous operating features and conditions Table 11 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. ...
Page 62 - SAS physical interface; Physical interface
54 Savvio 15K SAS Product Manual, Rev. B 9.4.1 SAS physical interface Figure 12 shows the location of the SAS device connector J1. Figures 13 and 14 provide the dimensions of the SAS connector. Details of the physical, electrical, and logical characteristics are provided within this section. The ope...
Page 63 - SAS device plug dimensions; C OF DATUM B
Savvio 15K SAS Product Manual, Rev. B 55 Figure 13. SAS device plug dimensions C OF DATUM B L 5.08 1.27 (6X) 1.27 (14X) 15.875 0.35MIN 15.875 33.43 0.05 B 4.90 0.08 0.84 0.05 (22X) 0.15 B P15 P1 S7 S1 SEE Detail1 0.30 0.05 (4X) 4.00 0.08 0.15 D 0.30 0.05 (2X) 41.13 0.15 B B C C A A 0.20 B 42.73 REF....
Page 65 - Physical characteristics; This section defines physical interface connector.; Connector requirements; The SAS device connector is illustrated in Figures 13 and 14.; Electrical description; SAS drives use the device connector for:; Pin descriptions
Savvio 15K SAS Product Manual, Rev. B 57 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 ...
Page 67 - Power; Signal characteristics; Ready LED Out; Normal command activity; Ready LED Meaning bit mode page 19h; LED drive signal; State
Savvio 15K SAS Product Manual, Rev. B 59 9.4.7 Power The drive receives power (+5 volts and +12 volts) through the SAS device connector. Three +12 volt pins provide power to the drive, 2 short and 1 long. The current return for the +12 volt power supply is through the common ground pins. The supply ...
Page 68 - Receive eye mask; General interface characteristics; Characteristic
60 Savvio 15K SAS Product Manual, Rev. B Table 16 defines the general interface characteristics. 9.5.2.1 Eye masks 9.5.2.1.1 Eye masks overview The eye masks are graphical representations of the voltage and time limits on the signal at the compliance point. The time values between X1 and (1 - X1) co...
Page 69 - Jitter tolerance masks; is half the value for total jitter intable 19 and X1; Reveive tolerance eye mask; and Z1
Savvio 15K SAS Product Manual, Rev. B 61 9.5.2.1.3 Jitter tolerance masks Figure 17 describes the receive tolerance eye masks and is constructed using the X2 and Z2 values given in table 19. X1 OP is half the value for total jitter intable 19 and X1 TOL is half the value for total jitter in table 20...
Page 70 - Sinusoidal jitter mask; Transmitter signal characteristics; Signal characteristic; Sinus oidal jitte r fr e que ncy
62 Savvio 15K SAS Product Manual, Rev. B Figure 18 defines the sinusoidal jitter mask. Figure 18. Sinusoidal jitter mask 9.5.2.2 Transmitter signal characteristics Table 17 specifies the signal requirements at the transmitter end of a TxRx connection as measured into the zero-length test load. All s...
Page 71 - idle times of an OOB signal.; Receiver signal characteristics; b The value for X1 applies at a total jitter probability of 10
Savvio 15K SAS Product Manual, Rev. B 63 9.5.2.3 Receiver signal characteristics Table 18 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 19 and figure 20. a All tests in this table shall be performe...
Page 72 - Jitter; Table 19 defines the maximum allowable jitter.; Table 20 defines the amount of jitter the receiver shall tolerate .; Maximum allowable jitter; d Total jitter is specified at a probability of 10; Receiver jitter tolerance; receivers shall be able to tolerate without exceeding a BER of 10
64 Savvio 15K SAS Product Manual, Rev. B 9.5.2.3.1 Jitter Table 19 defines the maximum allowable jitter. 9.5.2.3.2 Receiver jitter tolerance Table 20 defines the amount of jitter the receiver shall tolerate . 9.5.2.3.3 Compliant jitter test pattern (CJTPAT) The CJTPAT within a compliant protocol fra...
Page 73 - Impedance specifications; Requirement
Savvio 15K SAS Product Manual, Rev. B 65 9.5.2.3.4 Impedance specifications Table 21 defines impedance requirements. Table 21: 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 im...
Page 74 - transit time of the time domain reflectometer signal.; receiver termination time constant
66 Savvio 15K SAS Product Manual, Rev. B 9.5.2.4 Electrical TxRx connections TxRx connections may be divided into TxRx connection segments. In a single TxRx connection individual TxRx connection segments may be formed from differing media and materials, including traces on printed wir-ing boards and...
Page 75 - Figure 19 shows the compliance interconnect test load.; Compliance interconnect test load; TCTF
Savvio 15K SAS Product Manual, Rev. B 67 for 50 MHz < f < 1.5 GHz, and: 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...
Page 76 - Figure 20 shows the zero-length test load.; Zero-length test load; Figure 21 shows an ISI loss example at 3.0 Gbps.; ISI loss example at 3.0 Gbps; Figure 22 shows an ISI loss example at 1.5 Gbps.; ISI loss example at 1.5 Gbps
68 Savvio 15K SAS Product Manual, Rev. B Figure 20 shows the zero-length test load. Figure 20. Zero-length test load Figure 21 shows an ISI loss example at 3.0 Gbps. Figure 21. ISI loss example at 3.0 Gbps Figure 22 shows an ISI loss example at 1.5 Gbps. Figure 22. ISI loss example at 1.5 Gbps Tx+ T...
Page 77 - Receiver characteristics; The receiver operates within a BER of 10; over frequency
Savvio 15K SAS Product Manual, Rev. B 69 9.5.2.5 Receiver characteristics The drive receiver is A.C. coupled. The receive network terminates the TxRx connection by a 100 ohm equiva-lent impedance as specified in table 21. The receiver operates within a BER of 10 -12 when a SAS signal with valid volt...
Page 79 - Seagate Technology support services; Internet; For information regarding Seagate products and services, visit; Seagate Service Centers; Presales Support; Seagate technical support is available to assist you online at
Savvio 15K SAS Product Manual, Rev. B 71 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: [email protected] Technical Supp...
Page 80 - Customer Service Operations; Warranty Service; USA/Canada/Latin America support services; Direct dial; and Mexico; Europe, the Middle East and Africa Support Services
72 Savvio 15K SAS Product Manual, Rev. B 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 warranty-relat...
Page 81 - Index; Numerics
Savvio 15K SAS Product Manual, Rev. B 73 Index Numerics 12 volt pins 59 5 volt pins 59 A abort task set function 43 AC coupling 58 AC power requirements 23 ACA active status 53 ACA active, faulted initiator status 53 acoustics 33 active LED Out signal 59 actuator assembly design 7 adaptive caching 5...
Page 84 - See also cooling
76 Savvio 15K SAS Product Manual, Rev. B operation 53 system chassis 41 T task management functions 43 Abort task set 43 Clear ACA 43 Clear task set 43 terminate task 43 task management response codes 43 Function complete 00 43 Function not supported 05 43 Function reject 04 43 task set full status ...