Product Manual Constellation SAS ® Standard Model Self-Encrypting Drive Model ST9500430SS ST9500431SS SED FIPS 140-2 Model ST9500432SS 100538693 Rev.
Revision history Revision Rev. A Rev. B Rev. C Rev. D Rev. E Date 02/03/09 03/05/09 06/11/09 01/15/10 09/23/10 Sheets affected or comments Initial release. Added ST9500431SS SED model. 2-7, 10, 17, 20-23, 26-28, 45, 47. 50 and 58. 10. fc, 1-2, 7, 9-10, 24-26, 35, 50 & 52. © 2010, Seagate Technology LLC All rights reserved. Publication number: 100538693, Rev.
Contents 1.0 Seagate Technology support services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2.0 Scope. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 3.0 Applicable standards and reference documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.1 Standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.5 7.6 Environmental limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.5.1 Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.5.2 Relative humidity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.5.3 Effective altitude (sea level) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.5.
12.5 12.6 12.7 12.4.7 Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Signal characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.5.1 Ready LED Out . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.5.2 Differential signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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List of Figures Figure 1. 500GB model current profiles 25 Figure 2. 500GB (3 Gbit) DC current and power vs. input/output operations per second . . . . . . . . . . . . . . . . . . . . . . .26 Figure 3. 500GB (6 Gbit) DC current and power vs. input/output operations per second . . . . . . . . . . . . . . . . . . . . . . .27 Figure 4. Location of the HDA temperature check point . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28 Figure 5.
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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, Constellation® SAS (Serial Attached SCSI) disc drives. Constellation drives support the SAS Protocol specifications to the extent described in this manual. The SAS Interface Manual (part number 100293071) describes the general SAS characteristics of this and other Seagate SAS drives.
3.0 Applicable standards and reference documentation The drives documented in this manual have been developed as system peripherals to the highest standards of design and construction. The drives depends on 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.
3.1.2 Electromagnetic compliance Seagate uses an independent laboratory to confirm compliance with the directives/standards for CE Marking and C-Tick Marking. The drive was tested in a representative system for typical applications. The selected system represents the most popular characteristics for test platforms.
3.1.3 European Union Restriction of Hazardous Substances (RoHS) The European Union Restriction of Hazardous Substances (RoHS) Directive, restricts the presence of chemical substances, including Lead, Cadmium, Mercury, Hexavalent Chromium, PBB and PBDE, in electronic products, effective July 2006. This drive is manufactured with components and materials that comply with the RoHS Directive. A number of parts and materials in Seagate products are procured from external suppliers.
4.0 General description Constellation 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.
4.1 Standard features Constellation drives have the following standard features: • • • • • • • • • • • • • • • • • • • • • • • • • • • • Perpendicular recording technology 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.
4.3 • • • • • • Programmable multi-segmentable cache buffer 600 Mbytes/sec maximum instantaneous data transfers. 7200 RPM spindle. Average latency = 4.16 msec Background processing of queue Supports start and stop commands (spindle stops spinning) Adaptive seek velocity; improved seek performance Note. 4.4 • • • • • Performance There is no significant performance difference between Self-Encrypting Drive and standard (nonSelf-Encrypting Drive) models. Reliability Annualized Failure Rate (AFR) of 0.
4.7 Factory-installed options You may order the following items which are incorporated at the manufacturing facility during production or packaged before shipping. Some of the options available are (not an exhaustive list of possible options): • Other capacities can be ordered depending on sparing scheme and sector size requested. • Single-unit shipping pack. The drive is normally shipped in bulk packaging to provide maximum protection against transit damage.
5.0 Performance characteristics This section provides detailed information concerning performance-related characteristics and features of Constellation drives. 5.1 Internal drive characteristics ST9500430SS, ST9500431SS & ST9500432SS 500 Gbytes (formatted, rounded off value) 6 890,823 Bytes (average, rounded off values) 83,370 Mbytes (unformatted, rounded off value) 123,148 Tracks (user accessible) 200,000 TPI (average) 1,410,000 BPI 283 Gbit/in2 75 - 142 Mbytes/sec (variable with zone) 7,200 rpm 4.
5.2.2 Format command execution time for 512-byte sectors (minutes) ST9500430SS, ST9500431SS & ST9500432SS Maximum (with verify) 216 Maximum (without verify) 108 Note. 5.2.3 There is approximately a 1.5 increase in time to format a SED drive versus a non-SED drive of the same capacity.
5.4 Prefetch/multi-segmented cache control The drive provides a prefetch (read look-ahead) and multi-segmented cache control algorithms that in many cases can enhance system performance. Cache refers to the drive buffer storage space when it is used in cache operations. To select this feature, the host sends the Mode Select command with the proper values in the applicable bytes in page 08h.
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 Rates1 Recovered Data Unrecovered Data Miscorrected Data Interface error rate: Mean Time Between Failure (MTBF): Annualized Failure Rate (AFR): Preventive maintenance: 1.
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.
Caution. 6.2.4 The drive motor must come to a complete stop prior to changing the plane of operation. This time is required to insure data integrity. 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.
S.M.A.R.T. measures error rates. All errors for each monitored attribute are recorded. A counter keeps track of the number of errors for the current interval. This counter is referred to as the Failure Counter. 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 error rate is considered to be unacceptable.
6.2.6 Drive Self Test (DST) Drive Self Test (DST) is a technology designed to recognize drive fault conditions that qualify the drive as a failed unit. DST validates the functionality of the drive at a system level. There are two test coverage options implemented in DST: 1. Extended test 2. Short test 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.
6.2.6.2.3 Short and extended tests DST has two testing options: 1. short 2. extended 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 provide a time-limited test that tests as much of the drive as possible within 120 seconds.
6.2.
7.0 Physical/electrical specifications This section provides information relating to the physical and electrical characteristics of the drive. 7.1 PowerChoiceTM power management Drives using the load/unload architecture provide programmable power management to tailor systems for performance and greater energy efficiency. The table below lists the supported PowerChoice modes. The further you go down in the table, the more power savings you get.
7.1.1 PowerChoice reporting methods PowerChoiceTM provides these reporting methods for tracking purposes: Request Sense command reports • Current power condition • Method of entry Note. Processing the Request Sense command does not impact the drive’s power save state.
Table 2: 500GB drive (Standard & SED model) DC power requirements Notes Voltage 3.0 Gbit mode 6.0 Gbit mode (Amps) (Amps) (Amps) (Amps) +5V +12V [4] +5V +12V [4] Regulation [5] ±5% ±5% [2] ±5% ±5% [2] Avg idle current DCX [1] [7] 0.33 0.10 0.34 0.10 Idle_A 0.32 0.10 0.34 0.10 Idle_B 0.23 0.08 0.24 0.08 Idle_C/ Standby_Y 0.23 0.05 0.24 0.05 Standby_Z 0.23 0.02 0.25 0.02 Advanced idle current Maximum starting current (peak DC) DC 3σ [5] 0.59 0.65 0.60 0.
[5] [6] [7] [8] [9] See +12V current profile in Figure 1. This condition occurs after OOB and Speed Negotiation completes but before the drive has received the Notify Spinup primitive. See paragraph 7.3.1, "Conducted noise immunity." Specified voltage tolerance includes ripple, noise, and transient response. Operating condition is defined as random 8 block reads. During idle, the drive heads are relocated every 60 seconds to a random location within the band from three-quarters to maximum track.
7.3.3 Current profiles The +12V (top) and +5V (bottom) current profiles for the Constellation drives are shown below. Figure 1. 500GB model current profiles Note: All times and currents are typical. See Table 2 for maximum current requirements. Constellation SAS Product Manual, Rev.
7.4 Power dissipation ST9500430SS, ST9500431SS and ST9500432SS in 3 Gbit operation Please refer to Table 2 for power dissipation numbers. To obtain operating power for typical random read operations, refer to the following I/O rate curve (see Figure 2). 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 2. Note.
ST9500430SS, ST9500431SS and ST9500432SS in 6 Gbit operation Please refer to Table 2 for power dissipation numbers. To obtain operating power for typical random read operations, refer to the following I/O rate curve (see Figure 3.). 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.
7.5 Environmental limits Temperature and humidity values experienced by the drive must be such that condensation does not occur on any drive part. Altitude and atmospheric pressure specifications are referenced to a standard day at 58.7°F (14.8°C). Maximum wet bulb temperature is 82°F (28°C). 7.5.1 Temperature a.
7.5.2 Relative humidity The values below assume that no condensation on the drive occurs. a. Operating 5% to 95% non-condensing relative humidity with a maximum gradient of 20% per hour. b. Non-operating 5% to 95% non-condensing relative humidity. 7.5.3 Effective altitude (sea level) a. Operating –200 to +10,000 feet (–61 to +3,048 meters) b. Non-operating –200 to +40,000 feet (–61 to +12,210 meters) 7.5.
The drive subjected to nonrepetitive shock not exceeding 200 Gs at a maximum duration of 0.5 msec (half sinewave) does not exhibit device damage or performance degradation. Shock may be applied in the X, Y, or Z axis. 30 Constellation SAS Product Manual, Rev.
d. Packaged Disc drives shipped as loose load (not palletized) general freight will be packaged to withstand drops from heights as defined in the table below. For additional details refer to Seagate specifications 30190-001 (under 100 lbs/45 kg) or 30191-001 (over 100 lbs/45 Kg). Package size Packaged/product weight Drop height <600 cu in (<9,800 cu cm) 600-1800 cu in (9,800-19,700 cu cm) >1800 cu in (>19,700 cu cm) >600 cu in (>9,800 cu cm) Any 0-20 lb (0 to 9.1 kg) 0-20 lb (0 to 9.1 kg) 20-40 lb (9.
7.5.4.2 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 5 - 22 Hz 0.25 Gs, limited displacement 22 - 350 Hz 0.5 Gs 350 - 500 Hz 0.25 Gs Vibration may be applied in the X, Y, or Z axis. Operating normal translational random flat profile 10 - 500 Hz 0.5 GRMS b.
7.5.7 Acoustics Sound power during idle mode shall be 2.3 bels typical when measured to ISO 7779 specification. There will not be any discrete tones more than 10 dB above the masking noise on typical drives when measured according to Seagate specification 30553-001. There will not be any tones more than 24 dB above the masking noise on any drive. 7.5.8 Electromagnetic susceptibility See Section 3.1.1.1. Constellation SAS Product Manual, Rev.
7.6 Mechanical specifications The following nominal dimensions are exclusive of the decorative front panel accessory. However, dimensions of the front panel are shown in figure below. Refer to Figure 6 for detailed mounting configuration dimensions. See Section 11.3, “Drive mounting.” Height: Width: Depth: Weight: Figure 6. 34 0.583 in 2.76 in 3.957 in 0.50 pounds 14.8 mm 70 mm 100.5 mm 0.227 kilograms Mounting configuration dimensions Constellation SAS Product Manual, Rev.
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 3.2. The Trusted Computing Group (TCG) is an organization sponsored and operated by companies in the computer, storage and digital communications industry.
9.2.2 Locking SP The Locking SP controls read/write access to the media and the cryptographic erase feature. Access to the Locking SP is available using the BandMasterX or EraseMaster passwords. Since the drive owner can define up to 16 data bands on the drive, each data band has its own password called BandMasterX where X is the number of the data band (0 through 15). 9.2.3 Default password When the drive is shipped from the factory, all passwords are set to the value of MSID.
9.6 Cryptographic erase A significant feature of SEDs is the ability to perform a cryptographic erase. This involves the host telling the drive to change the data encryption key for a particular band. Once changed, the data is no longer recoverable since it was written with one key and will be read using a different key. Since the drive overwrites the old key with the new one, and keeps no history of key changes, the user data can never be recovered.
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).
The drive firmware error recovery algorithms consist of 12 levels for read recoveries and five levels for write. Each level may consist of multiple steps, where a step is defined as a recovery function involving a single reread or re-write attempt. The maximum level used by the drive in LBA recovery is determined by the read and write retry counts. Table 3 equates the read and write retry count with the maximum possible recovery time for read and write recovery of individual LBAs.
10.4 Background Media Scan Background Media Scan (BMS) is a self-initiated media scan. BMS is defined in the T10 document SPC-4 available from the T10 committee. BMS performs sequential reads across the entire pack of the media while the drive is idle. In RAID arrays, BMS allows hot spare drives to be scanned for defects prior to being put into service by the host system. On regular duty drives, if the host system makes use of the BMS Log Page, it can avoid placing data in suspect locations on the media.
10.7 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 command data resident in the drives data buffer. Any sectors that fail the comparison result in the invocation of a rewrite and auto-reallocation process. The process attempts to rewrite the data to the original location.
11.0 Installation Constellation 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 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 M3 x 0.5 metric screws.
11.2 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 7.5.1, "Temperature." The rack, cabinet, or drawer environment for the drive must provide heat removal from the electronics and head and disc assembly (HDA). You should confirm that adequate heat removal is provided using the temperature measurement guidelines described in Section 7.5.1.
11.3 Drive mounting Mount the drive using the bottom or side mounting holes. If you mount the drive using the bottom holes, ensure that you do not physically distort the drive by attempting to mount it on a stiff, non-flat surface. The allowable mounting surface stiffness is 80 lb/in (14.0 N/mm).
12.0 Interface requirements This section partially describes the interface requirements as implemented on Constellation 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 Constellation drives. 12.1.1 task management functions Table 4 lists the SAS task management functions supported.
12.2 Dual port support Constellation 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.
12.3 SCSI commands supported Table 6 lists the SCSI commands supported by Constellation drives.
Table 6: Supported commands Command name Command code Supported Last n Deferred Errors or Asynchronous Events page (0Bh) N Last n Error Events page (07h) N Non-medium Error page (06h) Y Pages Supported list (00h) Y Read Error Counter page (03h) Y Read Reverse Error Counter page (04h) N Self-test Results page (10h) Y Start-stop Cycle Counter page (0Eh) Y Temperature page (0Dh) Y Verify Error Counter page (05h) Y Write error counter page (02h) Y Mode Select (same pages as Mode Sense
Table 6: Supported commands Command name Command code Supported Read Capacity (10) 25h Y Read Capacity (16) 9Eh/10h N Read Defect Data (10) 37h Y Read Defect Data (12) B7h Y Read Long 3Eh Y (non-SED drives only) Read Long (16) 9Eh/11h N Reassign Blocks 07h Y Receive Diagnostic Results 1Ch Y Supported Diagnostics pages (00h) Y Translate page (40h) Y Release 17h Y Release (10) 57h Y Report LUNs A0h Y Request Sense 03h Y Actual Retry Count bytes Y Extended Sense
Table 6: Supported commands Command name Command code Supported Verify (10) 2Fh Y BYTCHK bit Y Verify (12) AFh N Verify (16) AFh N Verify (32) 7Fh/000Ah N Write (6) 0Ah Y Write (10) 2Ah Y DPO bit Y FUA bit Y Write (12) AAh N Write (16) 8Ah N Write (32) 7Fh/000Bh N Write and Verify (10) 2Eh Y DPO bit Y Write and Verify (12) AEh N Write and Verify (16) 8Eh N Write and Verify (32) 7Fh/000Ch N Write Buffer (modes 0, 2, supported) 3Bh Y (non-SED drives only)
12.3.1 Inquiry data Table 7 lists the Inquiry command data that the drive should return to the initiator per the format given in the SAS Interface Manual.
Select command before the drive achieves operating speed and is “ready.” An attempt to do so results in a “Check Condition” status. On drives requiring unique saved values, the required unique saved values are stored into the saved values storage location on the media prior to shipping the drive. Some drives may have unique firmware with unique default values also.
Table 8: Mode Sense data changeable and default values for 500GB drives MODE DATA HEADER: 01 92 00 10 00 00 00 08 BLOCK DESCRIPTOR: 3a 38 60 30 00 00 02 00 MODE PAGES: DEF 81 0a c0 0b ff 00 00 00 05 00 ff ff CHG 81 0a ff ff 00 00 00 00 ff 00 ff ff DEF CHG 82 0e 00 00 00 00 00 00 00 00 01 3a 00 00 00 00 82 0e 00 00 00 00 00 00 00 00 ff ff 00 00 00 00 DEF CHG 83 16 bb d0 00 00 00 00 03 80 04 c4 02 00 00 01 00 b7 00 39 40 00 00 00 83 16 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 DE
12.4 Miscellaneous operating features and conditions Table 9 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.
12.4.1 SAS physical interface Figure 10 shows the location of the SAS device connector J1. Figures 11 and 12 provide the dimensions of the SAS connector. Details of the physical, electrical, and logical characteristics are provided within this section. The operational aspects of Seagate’s SAS drives are provided in the SAS Interface Manual. Figure 10. 56 Physical interface Constellation SAS Product Manual, Rev.
0.80 (6X) 5.92 7.62 4.65 0.52 2.00 (3X) 0.45 5.08 0.08 x 45 0.03 (7X) 0.10 M E 42.73 REF. 41.13 0.30 0.15 0.20 B 0.05 (2X) C A B 4.00 1.10 0.08 0.15 D 0.30 CL OF DATUM D 0.05 (4X) A B R0.30 C 0.08 (4X) SEE Detail1 33.43 0.05 B 15.875 15.875 1.27 (14X) 1.27 (6X) 0.84 5.08 0.05 (22X) 0.15 B 4.90 0.08 0.35MIN P15 P1 S7 S1 CL OF DATUM B Figure 11. SAS device plug dimensions Constellation 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 0.08 0.05 0.05 1.90 0.08 30 Detail 2 2.40 0.08 0.10 A SECTION B - B D Figure 12. 58 SAS device plug dimensions (detail) Constellation SAS Product Manual, Rev.
12.4.2 Physical characteristics This section defines physical interface connector. 12.4.3 Connector requirements Contact your preferred connector manufacturer for mating part information. Part numbers for SAS connectors will be provided in a future revision of this publication when production parts are available from major connector manufacturers. The SAS device connector is illustrated in Figures 11 and 12. 12.4.
12.4.6 SAS transmitters and receivers A typical SAS differential copper transmitter and receiver pair is shown in Figure 13. The receiver is AC coupling to eliminate ground shift noise. .01 TX Differential Transfer Medium Transmitter 100 TY Figure 13. SAS transmitters and receivers 12.4.7 Power RX Receiver 100 .01 RY 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 13 for the output characteristics of the LED drive signals. Table 13: 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.
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Index Numerics 12 volt pins 60 5 volt pins 60 6 Gbps 61 A abort task set function 46 AC coupling 60 AC power requirements 22 ACA active status 55 ACA active, faulted initiator status 55 acoustics 33 active LED Out signal 60 actuator 8 assembly design 6 adaptive caching 55 Admin SP 36 AES-128 data encryption 36 air cleanliness 32 air flow 28, 44 illustrated 44 air inlet 44 altitude 29 ambient 28 ambient temperature 28, 44 ANSI documents SCSI 5 Serial Attached SCSI 5 asynchronous event notification 55 audibl
description 6 DFE 61 dimensions 34 disc rotation speed 10 drive 32 drive characteristics 10 drive failure 15 Drive Locking 37 drive mounting 34, 45 drive select 59 dual port support 47 E electrical description of connector 59 signal characteristics 60 specifications 21 electromagnetic compatibility 3 Electromagnetic Compatibility (EMC) 4 Electromagnetic Compatibility control Regulation 4 Electromagnetic compliance for the European Union 4 electromagnetic susceptibility 33 EMI requirements 3 encryption engi
L N latency average rotational 10, 11 Locking SP 36, 37 LockOnReset 37 logical block address 12 logical block reallocation scheme 7 logical block size 7, 11 logical segments 12 noise audible 3 noise immunity 24 non-operating 29, 32 temperature 28 non-operating vibration 32 M office environment 32 operating 29, 32 option selection 59 options 9 orientation 29 out-of-plane distortion 45 maintenance 14 Makers Secure ID 36 maximum delayed motor start 23 maximum start current 23 mean time between failure.
R radio interference regulations 3 Random number generator 37 RCD bit 12 read error rates 14, 39 read/write data heads 10 receivers 60 recommended mounting 31 Recoverable Errors 14 recovered media data 14 reference documents 5 relative humidity 29 reliability 8 specifications 14 reliability and service 15 repair and return information 20 reporting actual retry count 55 reservation conflict status 55 resonance 29 return information 20 RNG 37 RoHS 5 rotation speed 10 S safety 3 SAS interface 59 physical inte
U unformatted 8 Unrecoverable Errors 14 unrecovered media data 14 V vibration 29, 32 W warranty 20 Z zero latency read 55 zone bit recording (ZBR) 7 Constellation SAS Product Manual, Rev.
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Seagate Technology LLC 920 Disc Drive, Scotts Valley, California 95066-4544, USA Publication Number: 100538693, Rev.
