Product Manual Cheetah 15K.7 SAS Standard models Self-Encrypting Drive models ST3600057SS ST3600957SS ST3450857SS ST3450757SS ST3300657SS ST3300557SS 100516226 Rev.
©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 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 Standards, compliance and reference documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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 Acoustics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.4.6 Air cleanliness . . . . . .
10.6 10.7 11.0 10.5.2 Differential signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61 SAS-2 Specification compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61 Additional information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61 Seagate Technology support services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
iv Cheetah 15K.7 SAS Product Manual, Rev.
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) describes the general SAS characteristics of Cheetah 15K.7 and other Seagate SAS drives. The Self-Encrypting Drive (SED) Users Guide, part number 100515636 describes the interface, general operation and security features available on SED drives. Note.
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 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.
2.2 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 selected system represents the most popular characteristics for test platforms.
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 operating procedures that ensure that restricted substances are not utilized in our manufacturing operations, laboratory analytical validation testing, and an internal auditing process to ensure that all standard operating procedures are complied with. 2.
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 interface is designed to meet next-generation computing demands for performance, scalability, flexibility and highdensity storage requirements. Cheetah 15K.
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 Firmware downloadable using the SAS interface 128 - deep task set (queue) Supports up to 32 initiators Jumperless configuration.
Note. There is no significant performance difference between Self-Encrypting Drive and standard (nonSelf-Encrypting Drive models. 3.4 Reliability • 1,600,000 hour MTBF (Annualized Failure Rate (AFR) of 0.55%) • 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.
4.0 Performance characteristics This section provides detailed information concerning performance-related characteristics and features of Cheetah 15K.7 drives. 4.
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. Maximum (with verify) Maximum (without verify) Note. ST3600057SS ST3450857SS ST3300657SS 119 60 90 45 58 29 There is no significant difference in the format time between SED and non-SED models of the same capacity.
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 command the drive to stop the spindle. Stop time is 30 seconds (maximum) from removal of DC power. There is no power control switch on the drive. 4.
4.5.1 Caching write data Write caching is a write operation by the drive that makes use of a drive buffer storage 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 same buffer space and segmentation is used as set up for read functions.
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 Rates Recovered Data Unrecovered Data Miscorrected Data Interface error rate: MTBF AFR Preventive maintenance: 5.
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 68°C, however, you can set it to any value in the range of 0 to 68°C. If you specify a temperature greater than 68°C in this field, the temperature is rounded down to 68°C. A sense code is sent to the host to indicate the rounding of the parameter field. Table 12: Temperature Log Page (0Dh) Parameter Code Description 0000h Primary Temperature 0001h Reference Temperature 5.2.
• • • • 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 Invoking DST To invoke DST, submit the Send Diagnostic command with the appropriate Function Code (001b for the short 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.
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 executing in background mode by using the abort code in the DST Function Code field. This will cause a 01 (self-test aborted by the application client) code to appear in the self-test results values log. All other abort mechanisms will be reported as a 02 (self-test routine was interrupted by a reset condition). 5.2.
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 13: 600 GB DC power requirements Notes Voltage ST3600057SS ST3600957SS 3 Gbit mode ST3600057SS ST3600957SS 6 Gbit mode (Amps) (Amps) (Amps) (Amps) +5V +12V [2] +5V +12V [2] Regulation [5] ±5% ±5% [2] ±5% ±5% [2] Avg idle current [1] [7] 0.37 0.81 0.38 0.81 Maximum starting current (peak DC) DC 3σ [3] 0.67 1.90 0.68 1.91 (peak AC) AC 3σ [3] 0.98 3.82 0.98 3.88 3σ [1] [4] 0.55 0.04 0.56 0.04 Typical DC [1][6] [1] 0.44 1.15 0.45 1.
Table 14: 450 GB DC power requirements Notes Voltage ST3450857SS ST3450757SS 3 Gbit mode ST3450857SS ST3450757SS 6 Gbit mode (Amps) (Amps) (Amps) (Amps) +5V +12V [2] +5V +12V [2] Regulation [5] ±5% ±5% [2] ±5% ±5% [2] Avg idle current [1] [7] 0.39 0.68 0.41 0.66 Maximum starting current (peak DC) DC 3σ [3] 0.65 1.94 0.67 1.94 (peak AC) AC 3σ [3] 0.94 3.91 0.96 3.89 3σ [1] [4] 0.54 0.04 0.56 0.04 Typical DC [1][6] [1] 0.45 1.01 0.47 1.
Table 15: 300 GB DC power requirements Notes Voltage ST3300657SS ST3300557SS 3 Gbit mode ST3300657SS ST3300557SS 6 Gbit mode (Amps) (Amps) (Amps) (Amps) +5V +12V [2] +5V +12V [2] Regulation [5] ±5% ±5% [2] ±5% ±5% [2] Avg idle current [1] [7] 0.34 0.58 0.35 0.58 Maximum starting current (peak DC) DC 3σ [3] 0.53 1.92 0.54 1.92 (peak AC) AC 3σ [3] 0.98 3.82 0.86 3.98 3σ [1] [4] 0.47 0.04 0.48 0.04 Typical DC [1][6] [1] 0.41 0.88 0.42 0.
[5] [6] [7] See paragraph 6.2.1, "Conducted noise immunity." Specified voltage tolerance includes ripple, noise, and transient response. Operating condition is defined as random 8 block reads at 375 I/Os per second for 600GB models, and 380 I/Os per second for 450GB and 300GB models. Current and power specified at nominal voltages. During idle, the drive heads are relocated every 60 seconds to a random location within the band from three-quarters to maximum track. General DC power requirement notes. 1.
Figure 1. Typical 600GB current profiles Figure 2. Typical 450GB current profiles 24 Cheetah 15K.7 SAS Product Manual, Rev.
Figure 3. Typical 300GB current profiles Cheetah 15K.7 SAS Product Manual, Rev.
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). 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. Figure 4.
ST3450857SS model Typical power dissipation under idle conditions in 6Gb operation is 9.97 watts (34.02 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. Figure 5.
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/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. Figure 6.
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. HDA Temp. Check Point 1.0 " .5" Figure 7. Location of the HDA temperature check point 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.
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 intermittent shock not exceeding 40 Gs at a duration of 11 msec (half sinewave). Shock occurring at abnormal levels may promote degraded operational performance during the abnormal shock period. Specified operational performance will continue when normal operating shock levels resume.
Z X Y Z Y X 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 301– 500 Hz 1.0 G RMS (0 to peak) 0.5 G RMS (0 to peak) Vibration may be applied in the X, Y, or Z axis. b.
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 incur physical damage or degraded performance as a result of continuous vibration not exceeding 5 – 22 Hz 22 - 350 Hz 350 - 500 Hz 0.25 G (0 to peak, linear, swept sine, 0.5 octive/min) 3 G (0 to peak, linear, swept sine, 0.5 octive/min) 1 G (0 to peak, linear, swept sine, 0.
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.” Height: Width: Depth: Weight (max): 1.03 in 4.00 in 5.79 in 1.76 pounds 26.10 mm 101.60 mm 147 mm 0.80 kilograms 26.11 MAX (1.028 MAX) 2X 20.14 (2X .793) 6.35 (.250) 24.00 (.945) 4.22 X 90 ( .166 X 90 ) 2X 28.45 (2X 1.120) 2X 70.05 (2X 2.758) 0.36 ( .014) 122.00 (4.803) UNITS OF MEASURE: mm (inches) 2X 130.05 (2X 5.
7.0 About self-encrypting drives Self-encrypting drives (SEDs) offer encryption and security services for the protection of stored data, commonly known as “protection of data at rest.” These drives are compliant with the Trusted Computing Group (TCG) Enterprise Storage Specifications as detailed in Section 2.4. The Trusted Computing Group (TCG) is an organization sponsored and operated by companies in the computer, storage and digital communications industry.
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, it is the responsibility of the owner to use the default MSID password as the authority to change all other passwords to unique owner-specified values. 7.
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 status. 7.8 Power requirements The standard drive models and the SED drive models have identical hardware, however the security and encryption portion of the drive controller ASIC is enabled and functional in the SED models.
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 error management involves drive internal defect/error management and SAS system error considerations (errors in communications between the initiator and the drive).
Table 16 equates the read and write retry count with the maximum possible recovery time for read and write recovery of individual LBAs. The times given do not include time taken to perform reallocations. Reallocations are performed when the ARRE bit (for reads) or AWRE bit (for writes) is one, the RC bit is zero, and the recovery time limit for the command has not yet been met. Time needed to perform reallocation is not counted against the recovery time limit.
Table 16: Read and write retry count maximum recovery times [1] Read retry count Maximum recovery time per LBA (cumulative, msec) Write retry count Maximum recovery time per LBA (cumulative, msec) 0 51.87 0 23.94 1 59.85 1 35.91 2 203.49 2 39.9 3 231.42 3 51.87 4 295.26 4 79.8 5 327.18 5 (default) 107.73 6 359.10 7 446.88 8 538.65 9 570.57 10 598.50 11 (default) 1,534.97 [1] These values are subject to change.
With BMS, the host system can consume less power and system overhead by only checking BMS status and results rather than tying up the bus and consuming power in the process of host-initiated media scanning activity. Since the background scan functions are only done during idle periods, BMS causes a negligible impact to system performance.
9.0 Installation Cheetah 15K.7 disk 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 accommodate 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 6-32 UNC screws.
If forced air is determined to be necessary, possible air-flow patterns are shown in Figure 10. The air-flow patterns are created by one or more fans, either forcing or drawing air as shown in the illustrations. Conduction, convection, or other forced air-flow patterns are acceptable as long as the temperature measurement guidelines of Section 6.4.1 are met. Above unit Note. Air flows in the direction shown (back to front) or in reverse direction (front to back) Under unit Above unit Note.
10.0 Interface requirements This section partially describes the interface requirements as implemented on Cheetah 15K.7 drives. Additional information is provided in the SAS Interface Manual (part number 100293071). 10.1 SAS features This section lists the SAS-specific features supported by Cheetah 15K.7 drives. 10.1.1 task management functions Table 17 lists the SAS task management functions supported.
10.2 Dual port support Cheetah 15K.7 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 have the capability of independent port clocking (e.g. both ports can run at 6Gbit/sec or the first port can run at 6Gbit/sec while the second port runs at 3Gbit/sec.) The supported link rates are 1.5, 3.0, or 6.0 Gbits/sec. Subject to buffer availability, the Cheetah 15K.
Table 19: Commands supported by Cheetah 15K.
Table 19: Commands supported by Cheetah 15K.
Table 19: Commands supported by Cheetah 15K.
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. Table 20: Bytes Cheetah 15K.
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 in flash E-PROM (nonvolatile memory) on the drive’s PCB. These default values can be changed only by downloading a complete set of new firmware into the flash E-PROM.
10.3.2.
CHG 9a 0a 00 03 ff ff ff ff ff ff ff ff DEF CHG 9c 0a 10 00 00 00 00 00 00 00 00 01 9c 0a 9d 0f ff ff ff ff ff ff ff ff DEF CHG dc 01 00 0c 01 01 00 18 00 18 00 00 00 00 00 00 dc 01 00 0c 00 01 ff ff ff ff 00 00 00 00 00 00 DEF CHG 80 06 00 80 0f 00 00 00 80 06 b7 c0 8f 00 00 00 READ CAPACITY DATA: READ BUFFER 0 1 2 3 4 5 6 7 8 9 A B C D E F ASCII 000000: 45 DD 2F AF 00 00 02 00 __ __ __ __ __ __ __ __ Cheetah 15K.7 SAS Product Manual, Rev.
10.3.2.
DEF CHG 9c 0a 10 00 00 00 00 00 00 00 00 01 9c 0a 9d 0f ff ff ff ff ff ff ff ff DEF CHG dc 01 00 0c 01 01 00 18 00 18 00 00 00 00 00 00 dc 01 00 0c 00 01 ff ff ff ff 00 00 00 00 00 00 DEF CHG 80 06 00 80 0f 00 00 00 80 06 b7 c0 8f 00 00 00 READ CAPACITY DATA: READ BUFFER 0 1 2 3 4 5 6 7 8 9 A B C D E F 000000: 34 65 F8 6F 00 00 02 00 Cheetah 15K.7 SAS Product Manual, Rev.
10.3.2.
DEF CHG 9a 0a 00 02 00 00 00 05 00 00 8c a0 9a 0a 00 03 ff ff ff ff 00 00 00 00 DEF CHG 9c 0a 10 00 00 00 00 00 00 00 00 01 9c 0a 9d 0f ff ff ff ff ff ff ff ff DEF CHG dc 01 00 0c 01 01 00 18 00 18 00 00 00 00 00 00 dc 01 00 0c 00 01 ff ff ff ff 00 00 00 00 00 00 DEF CHG 80 06 00 80 0f 00 00 00 80 06 b7 c0 8f 00 00 00 READ CAPACITY DATA: READ BUFFER 0 1 2 3 4 5 6 7 8 9 A B C D E F 00000: 22 EC B2 5B 00 00 02 00 __ __ __ __ __ __ __ __ 10.
Table 22: Supported Miscellaneous status Status Y Intermediate/good Y Intermediate/condition met/good Y Reservation conflict Y Task set full N ACA active N ACA active, faulted initiator 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.
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 connector dimensions Cheetah 15K.7 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 0.15 SECTION C - C SECTION A - A 0.08 0.05 CONTACT SURFACE FLUSH TO DATUM A 0.03 65 1.23 0.05 0.08 1.90 0.08 30 0.05 Detail 2 2.40 0.08 0.10 A SECTION B - B D Figure 13. SAS connector dimensions 10.4.2 Physical characteristics This section defines physical interface connector. 10.4.
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 the SAS device and a description of the functions provided by the pins. Table 23: SAS pin descriptions Pin Signal name S1 Port A Ground S2* +Port A_in S3* Signal type Pin Signal name P1* NC (reserved 3.3Volts) P2* NC (reserved 3.
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 coupling to eliminate ground shift noise. .01 TX RX Differential Transfer Medium Transmitter 100 TY Figure 14. SAS transmitters and receivers 10.4.7 Power Receiver 100 RY .01 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 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. 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 10.5.
11.0 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/www/en-us/support/warranty_&_returns_assistance 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.
64 Cheetah 15K.7 SAS Product Manual, Rev.
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 adaptive caching 55 Admin SP 34 AES-128 data encryption 34 AFR 7 air cleanliness 32 air flow 41, 42 illustrated 42 air inlet 41 altitude 29 ambient 29 ambient temperature 41 ANSI documents Serial Attached SCSI 4 asynchronous event notification 55 audible noise
drive mounting 33, 42 drive select 59 dual port support 44 E electrical description of connector 59 signal characteristics 60 specifications 19 electromagnetic compatibility 2 electromagnetic susceptibility 33 EMI requirements 2 encryption engine 34 encryption key 35 environment 41 environmental limits 28 requirements 12 environmental control 32 EraseMaster 34 error management 37 rates 12 errors 37 heat removal 41 heat source 41 host equipment 42 hot plugging the drive 13 humidity 29 humidity limits 28 I
Segmented caching 55 SMP = 1 in Mode Select command 55 Synchronized (locked) spindle operation 55 Zero latency read 55 miscellaneous status support ACA active 56 ACA active, faulted initiator 56 Busy 55 Check condition 55 Condition met/good 55 Good 55 Intermediate/condition met/good 56 Intermediate/good 56 Reservation conflict 56 Task set full 56 miscorrected media data 12 Mode sense data, table 49 mounting 42 holes 42 orientations 41 MSID 34, 35 N noise audible 2 noise immunity 23 non-operating 29, 30, 31
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 Analysis and Reporting Technology 7, 14 Serial Attached SCSI (SAS) Interface Manual 1 shielding 2 shipping 18 shipping container 29 shock 29, 30 and vibration 29 shock mount 42 SID 34 signal characteristics 60 single-unit shipping pack kit 7 SMART 7, 14 SMP = 1
Seagate Technology LLC 920 Disc Drive, Scotts Valley, California 95066-4544, USA Publication Number: 100516226, Rev.
