Product Manual Cheetah 15K.7 SAS Standard models Self-Encrypting Drive models ST3600057SS ST3600957SS ST3450857SS ST3450757SS ST3300657SS ST3300557SS SED FIPS 140-2 models ST3600857SS ST3450657SS ST3300457SS 100516226 Rev.
© 2010, Seagate Technology LLC All rights reserved. Publication number: 100516226, Rev. D November 2010 Seagate, Seagate Technology and the Wave logo are registered trademarks of Seagate Technology LLC in the United States and/or other countries. Cheetah and SeaTools 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 Seagate Technology support services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2.0 Scope. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 3.0 Standards, compliance and reference documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.1 Standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.5 7.4.1 Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.4.2 Relative humidity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.4.3 Effective altitude (sea level) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.4.4 Shock and vibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.4.5 Acoustics . . . . . . .
12.5 12.6 12.7 12.4.7 Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Signal characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.5.1 Ready LED Out . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.5.2 Differential signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
iv Cheetah 15K.7 SAS Product Manual, Rev.
1.0 Seagate Technology support services SEAGATE ONLINE SUPPORT and SERVICES For information regarding products and services, visit http://www.seagate.com/www/en-us/about/contact_us/ Available services include: Presales & Technical support Global Support Services telephone numbers & business hours Authorized Service Centers For information regarding Warranty Support, visit http://www.seagate.
2.0 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.
3.0 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.
3.2 Compliance 3.2.1 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. 3.
4.0 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.
4.1 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. 4.4 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 4.5 Formatted capacities Standard OEM models are formatted to 512 bytes per block.
5.0 Performance characteristics This section provides detailed information concerning performance-related characteristics and features of Cheetah 15K.7 drives. 5.
5.2.2 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. 600GB 450GB 300GB 119 60 90 45 58 29 There is approximately a 1.5 increase in time to format a SED drive versus a non-SED drive 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. 5.
5.5.1 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.
6.0 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: 6.
6.1.3 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.
6.2.4 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 13: Temperature Log Page (0Dh) Parameter Code Description 0000h Primary Temperature 0001h Reference Temperature 6.2.
• • • • 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. 6.2.6.2.2 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. 6.2.6.2.3 Short and extended tests DST has two testing options: 1.
6.2.6.2.5 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). 6.2.
7.0 Physical/electrical specifications This section provides information relating to the physical and electrical characteristics of the drive. 7.1 AC power requirements None. 7.2 DC power requirements The voltage and current requirements for a single drive are shown below. Values indicated apply at the drive connector.
Table 14: 600 GB DC power requirements 3 Gbit mode Notes Voltage 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 1.17 Maximum DC 3σ [1] 0.49 1.20 0.51 1.
Table 15: 450 GB DC power requirements 3 Gbit mode Notes Voltage 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 1.02 Maximum DC 3σ [1] 0.48 1.08 0.51 1.
Table 16: 300 GB DC power requirements 3 Gbit mode Notes Voltage 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 0.90 Maximum DC 3σ [1] 0.42 0.95 0.43 0.
[6] [7] 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. Minimum current loading for each supply voltage is not less than 1.7% of the maximum operating current shown. 2.
Figure 1. Typical 600GB current profiles Figure 2. Typical 450GB current profiles Cheetah 15K.7 SAS Product Manual, Rev.
Figure 3. 26 Typical 300GB current profiles Cheetah 15K.7 SAS Product Manual, Rev.
7.3 Power dissipation 600GB 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.
450GB 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.
300GB 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. ST3300657SS DC current and power vs.
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 7.4.2 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 7.4.4.2 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.
c. Non-operating 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.
7.4.9 Electromagnetic susceptibility See Section 3.1.1.1. 7.5 Mechanical specifications Refer to Figure 9 for detailed physical dimensions. See Section 11.3, “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.
8.0 About FIPS The Federal Information Processing Standard (FIPS) Publication 140-2, FIPS PUB 140-2, is a U.S. government computer security standard used to accredit cryptographic modules. It is titled “Security Requirements for Cryptographic Modules”. The initial publication was on May 25, 2001 and was last updated December 3, 2002.
9.0 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 3.4. The Trusted Computing Group (TCG) is an organization sponsored and operated by companies in the computer, storage and digital communications industry.
9.2.3 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. 9.
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. 9.8 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.
10.0 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 17 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 17: 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.
11.0 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 11. 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 7.4.1 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.
12.0 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). 12.1 SAS features This section lists the SAS-specific features supported by Cheetah 15K.7 drives. 12.1.1 task management functions Table 18 lists the SAS task management functions supported.
12.2 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 20: Commands supported by Cheetah 15K.
Table 20: Commands supported by Cheetah 15K.
Table 20: Commands supported by Cheetah 15K.
12.3.1 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 21: Bytes Cheetah 15K.
12.3.2 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.
12.3.2.
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.
12.3.2.
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.
12.3.2.
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 __ __ __ __ __ __ __ __ 12.
Table 23: Supported Miscellaneous status Status Y Good Y Check condition Y Condition met/good Y Busy Y Intermediate/good Y Intermediate/condition met/good Y Reservation conflict Y Task set full N ACA active N ACA active, faulted initiator 12.4.1 SAS physical interface Figure 12 shows the location of the SAS device connector J1. Figures 13 and 14 provide the dimensions of the SAS 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 13. 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 14. SAS connector dimensions 12.4.2 Physical characteristics This section defines physical interface connector. 12.4.
12.4.4 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. 12.4.5 Pin descriptions This section provides a pin-out of the SAS device and a description of the functions provided by the pins. Table 24: 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.
12.4.6 SAS transmitters and receivers A typical SAS differential copper transmitter and receiver pair is shown in Figure 15. The receiver is AC coupling to eliminate ground shift noise. .01 TX RX Differential Transfer Medium Transmitter 100 TY Figure 15. SAS transmitters and receivers 12.4.7 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 26 for the output characteristics of the LED drive signals. Table 26: 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 12.5.
64 Cheetah 15K.7 SAS Product Manual, Rev.
Index Numerics 12 volt pins 62 5 volt pins 62 6 Gbps 63 A abort task set function 45 AC coupling 62 AC power requirements 20 ACA active status 58 ACA active, faulted initiator status 58 acoustics 33 active LED Out signal 62 actuator assembly design 6 adaptive caching 57 Admin SP 36 AES-128 data encryption 36 AFR 8 air cleanliness 33 air flow 43, 44 illustrated 44 air inlet 43 altitude 30 ambient 30 ambient temperature 43 ANSI documents Serial Attached SCSI 5 asynchronous event notification 57 audible noise
drive mounting 34, 44 drive select 61 dual port support 46 E electrical description of connector 61 signal characteristics 62 specifications 20 electromagnetic compatibility 3 electromagnetic susceptibility 34 EMI requirements 3 encryption engine 36 encryption key 37 environment 43 environmental limits 29 requirements 13 environmental control 33 EraseMaster 36 error management 39 rates 13 errors 39 F FCC rules and regulations 3 features 7 interface 45 feed forward equalizer 63 FFE 63 FIPS 35 firmware 7 co
Reporting actual retry count 57 Segmented caching 57 SMP = 1 in Mode Select command 57 Synchronized (locked) spindle operation 57 Zero latency read 57 miscellaneous status support ACA active 58 ACA active, faulted initiator 58 Busy 58 Check condition 58 Condition met/good 58 Good 58 Intermediate/condition met/good 58 Intermediate/good 58 Reservation conflict 58 Task set full 58 miscorrected media data 13 Mode sense data, table 51 mounting 44 holes 44 orientations 43 MSID 36, 37 N noise audible 3 noise immu
security partitions 36 Security Protocol In 36 Security Protocol Out 36 seek error defined 14 rate 13 seek performance characteristics 9 seek time average typical 9 full stroke typical 9 single track typical 9 segmented caching 57 self-encrypting drives 36 Self-Monitoring Analysis and Reporting Technology 8, 15 Serial Attached SCSI (SAS) Interface Manual 2 shielding 3 shipping 19 shipping container 30 shock 30, 31 and vibration 30 shock mount 44 SID 36 signal characteristics 62 single-unit shipping pack kit
Seagate Technology LLC 920 Disc Drive, Scotts Valley, California 95066-4544, USA Publication Number: 100516226, Rev.
