Page 2 - ©2008, Seagate Technology LLC All rights reserved.
©2008, Seagate Technology LLC All rights reserved. Publication number: 100516226, Rev. Rev. A May 2009 Seagate, Seagate Technology and the Wave logo are registered trademarks of Seagate Technology LLC in the United States and/or other countries. Cheetah, SeaTools and SeaTDD are either trademarks or ...
Page 3 - Contents
Cheetah 15K.7 SAS Product Manual, Rev. A i Contents 1.0 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2.0 Standards, compliance and reference documents . . . . . . . . . . . . . . . . . . . . . ...
Page 4 - ii
ii Cheetah 15K.7 SAS Product Manual, Rev. A 6.4.2 Relative humidity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 6.4.3 Effective altitude (sea level) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 6.4.4 Shock a...
Page 5 - iii
Cheetah 15K.7 SAS Product Manual, Rev. A iii 10.5.2 Differential signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61 10.6 SAS-2 Specification compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61 10....
Page 6 - iv
Page 7 - Scope; This manual describes Seagate Technology; Model Number; Yes
Cheetah 15K.7 SAS Product Manual, Rev. A 1 1.0 Scope This manual describes Seagate Technology ® LLC, Cheetah ® SAS (Serial Attached SCSI) disk drives. Cheetah 15K.7 drives support the SAS Protocol specifications to the extent described in this manual. The SAS Interface Manual (part number 100293071)...
Page 8 - Standards, compliance and reference documents; Standards; Electromagnetic compatibility
2 Cheetah 15K.7 SAS Product Manual, Rev. A 2.0 Standards, compliance and reference documents 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 9 - Compliance; Electromagnetic compliance; European Union Restriction of Hazardous Substances (RoHS)
Cheetah 15K.7 SAS Product Manual, Rev. A 3 2.2 Compliance 2.2.1 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 selec...
Page 10 - Reference documents
4 Cheetah 15K.7 SAS Product Manual, Rev. A 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 ensure that restri...
Page 11 - General description
Cheetah 15K.7 SAS Product Manual, Rev. A 5 3.0 General description Cheetah 15K.7 drives provide high performance, high capacity data storage for a variety of systems including engineering workstations, network servers, mainframes, and supercomputers. The Serial Attached SCSI inter-face is designed t...
Page 12 - Standard features; Cheetah 15K.7 drives have the following standard features:; Media description
6 Cheetah 15K.7 SAS Product Manual, Rev. A 3.1 Standard features Cheetah 15K.7 drives have the following standard features: • 1.5 / 3 / 6 Gbit Serial Attached SCSI (SAS) interface • Integrated dual port SAS controller supporting the SCSI protocol• Support for SAS expanders and fanout adapters• Firmw...
Page 13 - dard OEM drive shipped.
Cheetah 15K.7 SAS Product Manual, Rev. A 7 Note. There is no significant performance difference between Self-Encrypting Drive and standard (non-Self-Encrypting Drive models. 3.4 Reliability • 1,600,000 hour MTBF (Annualized Failure Rate (AFR) of 0.55%)• Incorporates industry-standard Self-Monitoring...
Page 14 - Performance characteristics; Internal drive characteristics; Access time; Not Including controller overhead
8 Cheetah 15K.7 SAS Product Manual, Rev. A 4.0 Performance characteristics This section provides detailed information concerning performance-related characteristics and features of Cheetah 15K.7 drives. 4.1 Internal drive characteristics ST3600057SS ST3450857SS ST3300657SS ST3600957SS ST3450757SS ST...
Page 15 - General performance characteristics
Cheetah 15K.7 SAS Product Manual, Rev. A 9 4.2.2 Format command execution time (minutes) When changing sector sizes, the format times shown below may need to be increased by 30 minutes. Note. There is no significant difference in the format time between SED and non-SED models of the same capacity. E...
Page 16 - Cache operation; Drive transfers the requested logical blocks to the initiator.
10 Cheetah 15K.7 SAS Product Manual, Rev. A If the drive receives a START STOP UNIT command with the START bit and IMMED bit equal to 1 and does not receive a NOTIFY (ENABLE SPINUP) primitive within 5 seconds, the drive fails the START STOP UNIT command. The START STOP UNIT command may be used to co...
Page 18 - Reliability specifications; Error rates; Recoverable Errors
12 Cheetah 15K.7 SAS Product Manual, Rev. A 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...
Page 19 - Seek errors; seeks. Unrecoverable seek errors; Interface errors; Reliability and service; Preventive maintenance; No routine scheduled preventive maintenance is required.; Hot plugging the drive
Cheetah 15K.7 SAS Product Manual, Rev. A 13 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...
Page 20 - 2 milliseconds
14 Cheetah 15K.7 SAS Product Manual, Rev. A 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 yo...
Page 23 - DST has two testing options:; Log page entries; The Self-Test Results Value field is set to Fh
Cheetah 15K.7 SAS Product Manual, Rev. A 17 • Motor will not spin• Motor will not lock to speed• Servo will not lock on track• Drive cannot read configuration tables from the disk 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 Invoki...
Page 25 - Physical/electrical specifications; AC power requirements
Cheetah 15K.7 SAS Product Manual, Rev. A 19 6.0 Physical/electrical specifications This section provides information relating to the physical and electrical characteristics of the drive. 6.1 AC power requirements None. 6.2 DC power requirements The voltage and current requirements for a single drive...
Page 26 - DC power requirements; Notes
20 Cheetah 15K.7 SAS Product Manual, Rev. A Table 13: 600 GB DC power requirements Notes ST3600057SS ST3600957SS 3 Gbit mode ST3600057SS ST3600957SS 6 Gbit mode (Amps) (Amps) (Amps) (Amps) Voltage +5V +12V [2] +5V +12V [2] Regulation [5] ±5% ±5% [2] ±5% ±5% [2] Avg idle current [1] [7] 0.37 0.81 0.3...
Page 29 - Conducted noise immunity
Cheetah 15K.7 SAS Product Manual, Rev. A 23 [5] See paragraph 6.2.1, "Conducted noise immunity." Specified voltage tolerance includes ripple, noise, and transient response. [6] Operating condition is defined as random 8 block reads at 375 I/Os per second for 600GB models, and 380 I/Os per se...
Page 31 - Typical 300GB current profiles
Cheetah 15K.7 SAS Product Manual, Rev. A 25 Figure 3. Typical 300GB current profiles
Page 32 - Power dissipation; model
26 Cheetah 15K.7 SAS Product Manual, Rev. A 6.3 Power dissipation ST3600057SS model Typical power dissipation under idle conditions in 6Gb operation is 11.62 watts (39.65 BTUs per hour). To obtain operating power for typical random read operations, refer to the following I/O rate curve (see Figure 4...
Page 34 - Environmental limits; Temperature
28 Cheetah 15K.7 SAS Product Manual, Rev. A ST3300657SS model Typical power dissipation under idle conditions in 6Gb operation is 8.71 watts (29.72 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...
Page 35 - Location of the HDA temperature check point; Relative humidity; The values below assume that no condensation on the drive occurs.; Shock and vibration; • 15 Gs at a duration of 11 msec (half sinewave)
Cheetah 15K.7 SAS Product Manual, Rev. A 29 b. Non-operating –40° to 158°F (–40° to 70°C) package ambient with a maximum gradient of 86°F (30°C) per hour. This specification assumes that the drive is packaged in the shipping container designed by Seagate for use with drive. Figure 7. Location of the...
Page 36 - Package size; Any
30 Cheetah 15K.7 SAS Product Manual, Rev. A Shock may be applied in the X, Y, or Z axis. Shock is not to be repeated more than once every 2 seconds. b. Operating—abnormal Equipment, as installed for normal operation, does not incur physical damage while subjected to intermit-tent shock not exceeding...
Page 37 - Recommended mounting; Vibration; b. Operating—abnormal
Cheetah 15K.7 SAS Product Manual, Rev. A 31 Figure 8. Recommended mounting 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 – 300 Hz 1.0 G RMS (0 to peak) 3...
Page 39 - Electromagnetic susceptibility; Mechanical specifications; Physical dimensions
Cheetah 15K.7 SAS Product Manual, Rev. A 33 6.4.9 Electromagnetic susceptibility See Section 2.1.1.1. 6.5 Mechanical specifications Refer to Figure 9 for detailed physical dimensions. See Section 9.3, “Drive mounting.” Figure 9. Physical dimensions Height: 1.03 in 26.10 mm Width: 4.00 in 101.60 mm D...
Page 40 - About self-encrypting drives; • Security Protocol Out; Data encryption; Admin SP
34 Cheetah 15K.7 SAS Product Manual, Rev. A 7.0 About self-encrypting drives Self-encrypting drives (SEDs) offer encryption and security services for the protection of stored data, com-monly known as “protection of data at rest.” These drives are compliant with the Trusted Computing Group (TCG) Ente...
Page 41 - Default password; Drive locking
Cheetah 15K.7 SAS Product Manual, Rev. A 35 7.2.3 Default password When the drive is shipped from the factory, all passwords are set to the value of MSID. This 32-byte random value is printed on the drive label and it can be read by the host electronically over the I/O. After receipt of the drive, i...
Page 42 - The download file must be signed and authenticated.; Power requirements
36 Cheetah 15K.7 SAS Product Manual, Rev. A 2. The download file must be signed and authenticated. 3. As with a non-SED drive, the download file must pass the acceptance criteria for the drive. For example it must be applicable to the correct drive model, and have compatible revision and customer st...
Page 43 - Defect and error management; Drive internal defects/errors
Cheetah 15K.7 SAS Product Manual, Rev. A 37 8.0 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 ...
Page 45 - These values are subject to change.; SAS system errors; Read and write retry count maximum recovery times [1]
Cheetah 15K.7 SAS Product Manual, Rev. A 39 [1] These values are subject to change. Setting these retry counts to a value below the default setting could result in degradation of the unrecov-ered error rate which may exceed the value given in this product manual. A setting of zero (0) will result in...
Page 47 - Installation; Power is supplied through the SAS connector.; Drive orientation
Cheetah 15K.7 SAS Product Manual, Rev. A 41 9.0 Installation Cheetah 15K.7 disk drive installation is a plug-and-play process. There are no jumpers, switches, or termina-tors on the drive. SAS drives are designed to be used in a host system that provides a SAS-compatible backplane with bays designed...
Page 48 - Air flow; Drive mounting
42 Cheetah 15K.7 SAS Product Manual, Rev. A If forced air is determined to be necessary, possible air-flow patterns are shown in Figure 10. The air-flow pat-terns are created by one or more fans, either forcing or drawing air as shown in the illustrations. Conduction, convection, or other forced air...
Page 49 - Interface requirements; SAS features; task management functions; Table 17 lists the SAS task management functions supported.; task management responses; Task name; Task management response codes; Function name
Cheetah 15K.7 SAS Product Manual, Rev. A 43 10.0 Interface requirements This section partially describes the interface requirements as implemented on Cheetah 15K.7 drives. Addi-tional information is provided in the SAS Interface Manual (part number 100293071). 10.1 SAS features This section lists th...
Page 50 - Commands supported by Cheetah 15K.6 SAS family drives; Command name
44 Cheetah 15K.7 SAS Product Manual, Rev. A 10.2 Dual port support Cheetah 15K.7 SAS drives have two independent ports. These ports may be connected in the same or differ-ent SCSI domains. Each drive port has a unique SAS address. The two ports have the capability of independent port clocking (e.g. ...
Page 51 - Commands supported by Cheetah 15K.6 SAS family drives (continued)
Cheetah 15K.7 SAS Product Manual, Rev. A 45 TSD bit Y ETC bit N TMC bit N LP bit N Log Sense 4Dh Y Application Client Log page (0Fh) Y Buffer Over-run/Under-run page (01h) N Cache Statistics page (37h) Y Factory Log page (3Eh) Y Last n Deferred Errors or Asynchronous Events page (0Bh) N Last n Error...
Page 54 - Inquiry data; Cheetah 15K.7 inquiry data
48 Cheetah 15K.7 SAS Product Manual, Rev. A 10.3.1 Inquiry data Table lists the Inquiry command data that the drive should return to the initiator per the format given in the SAS Interface Manual. * Copyright year (changes with actual year). ** SCSI Revision support. Refer to the appropiate SPC rele...
Page 55 - Mode Sense data; Default values
Cheetah 15K.7 SAS Product Manual, Rev. A 49 10.3.2 Mode Sense data The Mode Sense command provides a way for the drive to report its operating parameters to the initiator. The drive maintains four sets of mode parameters: 1. Default values Default values are hard-coded in the drive firmware stored i...
Page 61 - Miscellaneous operating features and conditions; Miscellaneous features; Miscellaneous status; Supported
Cheetah 15K.7 SAS Product Manual, Rev. A 55 DEF 9a 0a 00 02 00 00 00 05 00 00 8c a0 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 00 01 ff ff ff ff 00 00 00 0...
Page 62 - SAS physical interface; Physical interface
56 Cheetah 15K.7 SAS Product Manual, Rev. A 10.4.1 SAS physical interface Figure 11 shows the location of the SAS device connector J1. Figures 12 and 13 provide the dimensions of the SAS device. Details of the physical, electrical, and logical characteristics are provided within this section. The op...
Page 63 - SAS connector dimensions; C OF DATUM B
Cheetah 15K.7 SAS Product Manual, Rev. A 57 Figure 12. SAS connector 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 64 - Physical characteristics; This section defines physical interface connector.; Connector requirements; The SAS device connector is illustrated in Figures 12 and 13.
58 Cheetah 15K.7 SAS Product Manual, Rev. A Figure 13. SAS connector dimensions 10.4.2 Physical characteristics This section defines physical interface connector. 10.4.3 Connector requirements The SAS connector on the drive complies with SFF-8482. Contact your preferred connector manufacturer for ma...
Page 65 - Electrical description; SAS drives use the device connector for:; Pin descriptions
Cheetah 15K.7 SAS Product Manual, Rev. A 59 10.4.4 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. 10.4.5 Pin descriptions This section provides a pin-out of ...
Page 66 - SAS transmitters and receivers; Power; Signal characteristics; Ready LED Out; Normal command activity; Ready LED Meaning bit mode page 19h
60 Cheetah 15K.7 SAS Product Manual, Rev. A 10.4.6 SAS transmitters and receivers A typical SAS differential copper transmitter and receiver pair is shown in Figure 14. The receiver is AC cou-pling to eliminate ground shift noise. Figure 14. SAS transmitters and receivers 10.4.7 Power The drive rece...
Page 67 - Differential signals; SAS-2 Specification compliance; LED drive signal; State; General interface characteristics; Characteristic
Cheetah 15K.7 SAS Product Manual, Rev. A 61 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 resis-tor are external to the drive. See Table ...
Page 68 - Seagate Technology support services; mySeagate; Global Customer Support; Presales Support
62 Cheetah 15K.7 SAS Product Manual, Rev. A 11.0 Seagate Technology support services InternetFor 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 Su...
Page 69 - Customer Service Operations; Warranty Service; for the service center near you.; USA/Canada/Latin America support services
Cheetah 15K.7 SAS Product Manual, Rev. A 63 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-re...
Page 71 - Index; Numerics
Cheetah 15K.7 SAS Product Manual, Rev. A 65 Index Numerics 12 volt pins 60 5 volt pins 60 6 Gbps 61 A abort task set function 43 AC coupling 60 AC power requirements 19 ACA active status 56 ACA active, faulted initiator status 56 acoustics 32 active LED Out signal 60 actuator assembly design 5 adapt...
Page 74 - See also cooling
68 Cheetah 15K.7 SAS Product Manual, Rev. A Security Protocol In 34 Security Protocol Out 34 seek error defined 13 rate 12 seek performance characteristics 8 seek time average typical 8 full stroke typical 8 single track typical 8 segmented caching 55 self-encrypting drives 34 Self-Monitoring Analys...
