Seagate Savvio 15K Savvio 15K SAS Product Manual

Seagate Savvio 15K Manual

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  • Seagate Savvio 15K | Savvio 15K SAS Product Manual - Page 1
    PRODUCT MANUAL Savvio® 15K SAS ST973451SS ST936751SS 100407739 Rev. B March 2007
  • Seagate Savvio 15K | Savvio 15K SAS Product Manual - Page 2
    trademarks of Seagate Technology LLC or one of its affiliated companies in the United States and/or other countries. All other trademarks or registered trademarks are the property of their respective owners. One gigabyte, or GB, equals one billion bytes when referring to hard drive capacity
  • Seagate Savvio 15K | Savvio 15K SAS Product Manual - Page 3
    Revision Rev. A Rev. B Revision status summary sheet Date 09/15/06 03/28/07 Notes Initial release. Changes per ECR0076456. Savvio 15K SAS Product Manual, Rev. B i
  • Seagate Savvio 15K | Savvio 15K SAS Product Manual - Page 4
    ii Savvio 15K SAS Product Manual, Rev. B
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    Seek errors 16 5.1.4 Interface errors 16 5.2 Reliability and service 16 5.2.1 Annualized Failure Rate (AFR) and Mean Time 16 5.2.3 Hot plugging the drive 16 5.2.4 S.M.A.R.T 17 5.2.5 Thermal monitor 18 5.2.6 Drive Self Test (DST 18 5.2.7 Temperature 29 Savvio 15K SAS Product Manual, Rev. B i
  • Seagate Savvio 15K | Savvio 15K SAS Product Manual - Page 6
    Drive internal defects/errors 35 7.2 Drive error recovery procedures 35 7.3 SAS SAS transmitters and receivers 58 9.4.7 Power 59 9.5 Signal characteristics 59 9.5.1 Ready LED Out 59 9.5.2 Differential signals 59 10.0 Seagate Technology support services 71 ii Savvio 15K SAS Product Manual
  • Seagate Savvio 15K | Savvio 15K SAS Product Manual - Page 7
    (detail 56 SAS transmitters and receivers 58 Receive eye mask 60 Reveive tolerance eye mask 61 Sinusoidal jitter mask 62 Compliance interconnect test load 67 Zero-length test load 68 ISI loss example at 3.0 Gbps 68 ISI loss example at 1.5 Gbps 68 Savvio 15K SAS Product Manual, Rev. B iii
  • Seagate Savvio 15K | Savvio 15K SAS Product Manual - Page 8
  • Seagate Savvio 15K | Savvio 15K SAS Product Manual - Page 9
    drives. Savvio drives support the SAS Protocol to the extent described in this manual. The SAS Interface Manual (part number 100293071) and SCSI Commands Reference Manual (part number 100293068) describe the general SAS characteristics of these and other Seagate SAS drives. Savvio 15K SAS Product
  • Seagate Savvio 15K | Savvio 15K SAS Product Manual - Page 10
    2 Savvio 15K SAS Product Manual, Rev. B
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    systems to perform those tests required and design their system to ensure that equipment operating in the same system as the drive or external to the system does not adversely affect the performance of the drive. See Tables 2 and 3, DC power requirements. Savvio 15K SAS Product Manual, Rev. B 3
  • Seagate Savvio 15K | Savvio 15K SAS Product Manual - Page 12
    microprocessor • 3.5-inch floppy disc drive • Keyboard • Monitor/display • Printer • External modem • Mouse Although the test system with this Seagate model complies with the directives/ of the Taiwanese Bureau of Standards, Metrology, and Inspection (BSMI). 4 Savvio 15K SAS Product Manual, Rev. B
  • Seagate Savvio 15K | Savvio 15K SAS Product Manual - Page 13
    all parts and materials for the disc drives documented in this publication. Current supplier declarations Savvio 15K SAS Installation Guide Seagate part number: 100407741 SCSI Commands Reference Manual Seagate part number: 100293068 SAS Interface Manual Seagate part number: 100293071 ANSI SAS
  • Seagate Savvio 15K | Savvio 15K SAS Product Manual - Page 14
    6 Savvio 15K SAS Product Manual, Rev. B
  • Seagate Savvio 15K | Savvio 15K SAS Product Manual - Page 15
    populating their systems with either SAS or SATA hard disc drives. This allows you to drives also use a high-performance actuator assembly with a low-inertia, balanced, patented, straight arm design that provides excellent performance with minimal power dissipation. Savvio 15K SAS Product Manual
  • Seagate Savvio 15K | Savvio 15K SAS Product Manual - Page 16
    description The media used on the drive has an aluminum substrate coated with 15k RPM spindle. Average latency = 2.0 msec • Background processing of queue • Supports start and stop commands (spindle stops spinning) • Adaptive seek velocity; improved seek performance 8 Savvio 15K SAS Product Manual
  • Seagate Savvio 15K | Savvio 15K SAS Product Manual - Page 17
    are: Capacity (Blocks) ST973451SS Sector Size Decimal 512 143 Hex 445DCCCh 42F212Bh 4194B80h 4102065h 2. Seagate drives also may be used at the drives are shipped with the Savvio 15K SAS Installation Guide (part number 100407741) unless otherwise specified. Savvio 15K SAS Product Manual
  • Seagate Savvio 15K | Savvio 15K SAS Product Manual - Page 18
    single unit shipping pack. Users planning single unit distribution should specify this option. • The Savvio 15K SAS Installation Guide, part number 100407741, is usually included with each standard OEM drive shipped, but extra copies may be ordered. • The Safety and Regulatory Agency Specifications
  • Seagate Savvio 15K | Savvio 15K SAS Product Manual - Page 19
    latency ST973451SS 73.4 4 42,554 150 861.81 130.58 957.51 to 1,282.08 15k 2 ST936751SS 36.7 2 42,554 150 861.81 130.58 957.51 to 1,282.08 15k 2 orientation as measured on a representative sample of drives. 2. Access to data = access time + latency time. Savvio 15K SAS Product Manual, Rev. B 11
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    4.2.2 Format command execution time Maximum (with verify) Maximum (without verify) ST973451SS 52 minutes 35 minutes ST936751SS 26 minutes 18 minutes Execution time measured from receipt the start of the first logical block transfer to or from the host. 12 Savvio 15K SAS Product Manual, Rev. B
  • Seagate Savvio 15K | Savvio 15K SAS Product Manual - Page 21
    received and all of the requested logical blocks are already in the cache: 1. Drive transfers the requested logical blocks to the initiator. Case B-A Read command requests data, and at least one requested logical block is not in any segment of the cache: Savvio 15K SAS Product Manual, Rev. B 13
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    (read look-ahead) is enabled (enabled by DRA = 0), the drive enables prefetch of contiguous blocks from the disc when it senses that a prefetch hit will likely occur. The drive disables prefetch when it decides that a prefetch hit is not likely to occur. 14 Savvio 15K SAS Product Manual, Rev. B
  • Seagate Savvio 15K | Savvio 15K SAS Product Manual - Page 23
    data error is defined as a failure of the drive to recover data from the media. These errors occur due to head/media or write problems. Unrecoverable data errors are only detected during read data errors resulting from the same cause are treated as 1 error. Savvio 15K SAS Product Manual, Rev. B 15
  • Seagate Savvio 15K | Savvio 15K SAS Product Manual - Page 24
    and service You can enhance the reliability of Savvio disc drives by ensuring that the drive receives drive carrier prior to inserting it into the system. Caution. The drive motor must come to a complete stop prior to changing the plane of operation. This time is 16 Savvio 15K SAS Product Manual
  • Seagate Savvio 15K | Savvio 15K SAS Product Manual - Page 25
    Only" and will not perform off-line functions. You can measure off-line attributes and force the drive to save the data by using the Rezero Unit command. Forcing S.M.A.R.T. resets the timer so that . This counter is referred to as the Failure Counter. Savvio 15K SAS Product Manual, Rev. B 17
  • Seagate Savvio 15K | Savvio 15K SAS Product Manual - Page 26
    ) 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 18 Savvio 15K SAS Product Manual
  • Seagate Savvio 15K | Savvio 15K SAS Product Manual - Page 27
    a fault condition. If the drive fails the test, remove it from service and return it to Seagate for service. 5.2.6.1 DST failure definition The drive will present a "diagnostic failed Short and extended tests DST has two testing options: 1. short 2. extended Savvio 15K SAS Product Manual, Rev. B 19
  • Seagate Savvio 15K | Savvio 15K SAS Product Manual - Page 28
    time-limited test that tests as much of the drive as possible within 120 seconds. The short test Seagate's option and at no charge to the customer, if returned by customer at customer's expense to Seagate's designated facility in accordance with Seagate's warranty 20 Savvio 15K SAS Product Manual
  • Seagate Savvio 15K | Savvio 15K SAS Product Manual - Page 29
    and return information Seagate customer service centers are the only facilities authorized to service Seagate drives. Seagate does not sanction any third-party repair facilities. Any unauthorized repair or tampering with the factory seal voids the warranty. Savvio 15K SAS Product Manual, Rev. B 21
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    22 Savvio 15K SAS Product Manual, Rev. B
  • Seagate Savvio 15K | Savvio 15K SAS Product Manual - Page 31
    a single drive are shown below. Values indicated apply at the drive connector. Table 2: ST973451SS DC power 16 ST973451SS 3.0 Gbit mode (Amps) (Amps) +5V +12V [2] ±5% ±5% [2] 0.73 0.19 0.79 1.49 1.22 2.27 0.63 0.03 0.75 0.39 0.76 0.40 1.42 1.18 Savvio 15K SAS Product Manual,
  • Seagate Savvio 15K | Savvio 15K SAS Product Manual - Page 32
    drives drive power requirements should be noted. Where multiple units are powered on simultaneously, the peak starting current must be available to each device. 4. Parameters, other than spindle start, are measured after a 10-minute warm up. 5. No terminator power. 24 Savvio 15K SAS Product Manual
  • Seagate Savvio 15K | Savvio 15K SAS Product Manual - Page 33
    10 MHz. Maximum allowed noise values given below are peak-to-peak measurements and apply at the drive power connector. +5V +12V = 250 mV pp from 0 to 100 kHz to 20 MHz. and 3 for maximum current requirements. Figure 1. Typical ST973451SS current profile Savvio 15K SAS Product Manual, Rev. B 25
  • Seagate Savvio 15K | Savvio 15K SAS Product Manual - Page 34
    Figure 2. Typical ST936751SS current profile 26 Savvio 15K SAS Product Manual, Rev. B
  • Seagate Savvio 15K | Savvio 15K SAS Product Manual - Page 35
    8.00 Amperes Power (watts) 0.600 0.400 0.200 0.000 0.0 6.00 4.00 2.00 0.00 50.0 100.0 150.0 200.0 250.0 300.0 350.0 400.0 450.0 I/Os per Second Figure 4. ST973451SS (1.5 Gbit) DC current and power vs. input/output operations per second Savvio 15K SAS Product Manual, Rev. B 27
  • Seagate Savvio 15K | Savvio 15K SAS Product Manual - Page 36
    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 (1.5 Gbit) DC current and power vs. input/output operations per second 28 Savvio 15K SAS Product Manual, Rev. B
  • Seagate Savvio 15K | Savvio 15K SAS Product Manual - Page 37
    that the drive is packaged in the shipping container designed by Seagate for use with drive. HDA 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. Savvio 15K SAS Product Manual
  • Seagate Savvio 15K | Savvio 15K SAS Product Manual - Page 38
    may be applied in the X, Y, or Z axis. The drive subjected to nonrepetitve 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 Savvio 15K SAS Product Manual, Rev. B
  • Seagate Savvio 15K | Savvio 15K SAS Product Manual - Page 39
    in single or multipacks with a gross weight of 20 pounds (8.95 kg) or less by Seagate for general freight shipment shall withstand a drop test from 48 inches (1,070 mm) against a concrete floor or equivalent. Z Y X X Z Y Figure 8. Recommended mounting Savvio 15K SAS Product Manual, Rev. B 31
  • Seagate Savvio 15K | Savvio 15K SAS Product Manual - Page 40
    office environment with minimal environmental control. 6.4.6 Corrosive environment Seagate electronic drive components pass accelerated corrosion testing equivalent to 10 years exposure replacing materials near circuitry with sulfide-free alternatives. 32 Savvio 15K SAS Product Manual, Rev. B
  • Seagate Savvio 15K | Savvio 15K SAS Product Manual - Page 41
    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. 6.4.8 Electromagnetic susceptibility See Section 2.1.1.1. Savvio 15K SAS Product Manual, Rev. B 33
  • Seagate Savvio 15K | Savvio 15K SAS Product Manual - Page 42
    mounting configuration dimensions. See Section 8.3, "Drive mounting." Height: Width: Depth: Weight: 0.583 in 2.76 in 3.957 in 0.50 pounds 14.8 mm 70 mm 100.5 mm 0.227 kilograms Temperature Measurement Location Figure 9. Mounting configuration dimensions 34 Savvio 15K SAS Product Manual, Rev. B
  • Seagate Savvio 15K | Savvio 15K SAS Product Manual - Page 43
    commands supported by the drive are described in the SAS Interface Manual. Also, more information on the drive Error Recovery philosophy is presented in the SAS Interface Manual. 7.2 Drive error or Write Retry Count bytes in the Error Recovery mode page. Savvio 15K SAS Product Manual, Rev. B 35
  • Seagate Savvio 15K | Savvio 15K SAS Product Manual - Page 44
    by the drive. Status returned by the drive to the initiator is described in the SAS Interface Manual. Status reporting plays a role in systems error management and its use in that respect is described in sections where the various commands are discussed. 36 Savvio 15K SAS Product Manual, Rev
  • Seagate Savvio 15K | Savvio 15K SAS Product Manual - Page 45
    -this is the default setting from the Seagate factory. With AWRE and ARRE disabled DAR is unable to reallocate the failing location and will report an error sense code indicating that a write command is being attempted to a previously failing location. Savvio 15K SAS Product Manual, Rev. B 37
  • Seagate Savvio 15K | Savvio 15K SAS Product Manual - Page 46
    process attempts to rewrite the data to the original location. If a verification of this rewrite fails, the sector is re-mapped to a spare location. 38 Savvio 15K SAS Product Manual, Rev. B
  • Seagate Savvio 15K | Savvio 15K SAS Product Manual - Page 47
    Drive orientation The drive may be mounted in any orientation. All drive performance characterizations, however, have been done with the drive in horizontal (discs level) and vertical (drive on its side) orientations, which are the two preferred mounting orientations. Savvio 15K SAS Product Manual
  • Seagate Savvio 15K | Savvio 15K SAS Product Manual - Page 48
    the air inlet and exit should be chosen to minimize the travel length of air heated by the drive and other heat sources within the rack, cabinet, or drawer environment. If forced air is determined to to side) Figure 11. Air flow Above unit Under unit 40 Savvio 15K SAS Product Manual, Rev. B
  • Seagate Savvio 15K | Savvio 15K SAS Product Manual - Page 49
    of mounting the drive in the host equipment. Increased radiated emissions may result if you do not provide the maximum surface area ground connection between system ground and drive ground. This is the system designer's and integrator's responsibility. Savvio 15K SAS Product Manual, Rev. B 41
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    42 Savvio 15K SAS Product Manual, Rev. B
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    for task management functions supported. Table 6: Task management response codes Function name Function complete Response code 00 Invalid frame 02 Function not supported 04 Function failed 05 Function succeeded 08 Invalid logical unit 09 Savvio 15K SAS Product Manual, Rev. B 43
  • Seagate Savvio 15K | Savvio 15K SAS Product Manual - Page 52
    Savvio drives support: • Concurrent port transfers-The drive supports receiving COMMAND, TASK management transfers on both ports at the same time. • Full duplex-The drive supports sending XFER_RDY, DATA and RESPONSE transfers while receiving frames on both ports. 44 Savvio 15K SAS Product Manual
  • Seagate Savvio 15K | Savvio 15K SAS Product Manual - Page 53
    (01h) Cache Statistics page (37h) Factory Log page (3Eh) Information Exceptions Log page (2Fh) Command code 40h 39h 18h 3Ah 04h 12h 36h 4Ch 4Dh Supported N N N N Y N Y Y Y Y Y N Y Y Y Y Y Y Y Y N Y Y N Y Y N N N Y Y Y N Y Y N Savvio 15K SAS Product Manual, Rev. B 45
  • Seagate Savvio 15K | Savvio 15K SAS Product Manual - Page 54
    Disc Drive supported Read (12) Read (16) Read (32) Read Buffer (modes 0, 2, 3, Ah and Bh supported) Command code 15h 55h 1Ah 5Ah 34h 08h 28h A8h 88h 7Fh/0009h 3Ch Supported N N Y Y Y N Y Y Y Y Y Y Y [2] Y Y [2] Y Y Y Y Y Y Y N Y Y Y Y Y N Y N Y Y Y Y N N N Y 46 Savvio 15K SAS Product Manual
  • Seagate Savvio 15K | Savvio 15K SAS Product Manual - Page 55
    B7h 3Eh 9Eh/11h 07h 1Ch 17h 57h A0h 03h 16h 56h 01h 31h 30h 32h 0Bh 2Bh 1Dh 33h 1Bh 35h 91h 00h 2Fh Supported Y N Y Y Y N Y Y Y Y Y Y Y Y Y Y Y Y Y N Y Y N Y N N N Y Y Y Y Y N Y Y N Y Y Y Savvio 15K SAS Product Manual, Rev. B 47
  • Seagate Savvio 15K | Savvio 15K SAS Product Manual - Page 56
    can result in firmware corruption. This usually makes the drive inoperable. [3] Reference Mode Sense command 1Ah for mode pages supported. [4] Y = Yes. Command is supported. N = No. Command is not supported. A = Support is available on special request. 48 Savvio 15K SAS Product Manual, Rev. B
  • Seagate Savvio 15K | Savvio 15K SAS Product Manual - Page 57
    with actual year). ** SCSI Revision support. See the appropriate SPC release documentation drive. The table above shows the hex values for Model ST973451SS drive achieves operating speed and is "ready." An attempt to do so results in a "Check Condition" status. Savvio 15K SAS Product Manual,
  • Seagate Savvio 15K | Savvio 15K SAS Product Manual - Page 58
    reset, hard reset, drive in response to the Mode Sense command pages for SCSI implementation (see the SAS Interface Manual ). DEF = Default value. Standard OEM drives are shipped configured this way. CHG = Changeable bits; indicates if default value is changeable. 50 Savvio 15K SAS Product Manual
  • Seagate Savvio 15K | Savvio 15K SAS Product Manual - Page 59
    Table 9: Mode Sense data default and changeable values for ST973451SS drives MODE DATA HEADER: 03 fa 00 10 00 00 00 08 BLOCK DESCRIPTOR: 08 8b b9 98 00 00 02 00 MODE PAGES: DEF 81 ff ff ff ff ff ff ff DEF 80 06 00 00 0f 00 00 00 CHG 80 06 b7 40 0f 00 00 00 Savvio 15K SAS Product Manual, Rev. B 51
  • Seagate Savvio 15K | Savvio 15K SAS Product Manual - Page 60
    Table 10: Mode Sense data default and changeable values for ST936751SS drives MODE DATA HEADER: 03 fa 00 10 00 00 00 08 BLOCK DESCRIPTOR: 04 45 dc cc 00 00 02 00 MODE PAGES: DEF 81 ff ff ff ff ff ff DEF 80 06 00 00 0f 00 00 00 CHG 80 06 b7 40 0f 00 00 00 52 Savvio 15K SAS Product Manual, Rev. B
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    offset bytes Table 12: Miscellaneous status Supported Y Y Y Y Y Y Y Y N N Status Good Check condition Condition met/good Busy Intermediate/good Intermediate/condition met/good Reservation conflict Task set full ACA active ACA active, faulted initiator Savvio 15K SAS Product Manual, Rev. B 53
  • Seagate Savvio 15K | Savvio 15K SAS Product Manual - Page 62
    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 12. Physical interface 54 Savvio 15K SAS Product Manual, Rev. B
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    0.05 15.875 15.875 1.27 (14X) 1.27 (6X) 5.08 B 0.84 0.05 (22X) 0.15 B 4.90 0.08 P15 P1 S1 S7 CL OF DATUM B Figure 13. SAS device plug dimensions Savvio 15K SAS Product Manual, Rev. B 55
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    A - A 0.35 0.05 SECTION C - C 0.08 0.05 CONTACT SURFACE FLUSH TO DATUM A 0.03 1.23 0.05 65 30 0.08 0.05 Detail 2 1.90 0.08 2.40 0.08 0.10 A D Figure 14. SAS device plug dimensions (detail) SECTION B - B 56 Savvio 15K SAS Product Manual, Rev. B
  • Seagate Savvio 15K | Savvio 15K SAS Product Manual - Page 65
    power • SAS interface • Activity LED This connector is designed to either plug directly into a backpanel or accept cables. 9.4.5 Pin descriptions This section provides a pin-out of the SAS device and a description of the functions provided by the pins. Savvio 15K SAS Product Manual, Rev. B 57
  • Seagate Savvio 15K | Savvio 15K SAS Product Manual - Page 66
    SAS differential copper transmitter and receiver pair is shown in Figure 15. The receiver is AC coupling to eliminate ground shift noise. TX Transmitter 100 TY Differential Transfer Medium Figure 15. SAS transmitters and receivers .01 RX Receiver 100 .01 RY 58 Savvio 15K SAS Product Manual
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    Test condition 0 V ≤ VOH ≤ 3.6 V IOL = 15 mA Output voltage -100 µA < IOH < 100 µA 0 ≤ VOL ≤ 0.225 V 9.5.2 Differential signals The drive SAS differential signals comply with the intra-enclosure (internal connector) requirements of the SAS standard. Savvio 15K SAS Product Manual, Rev. B 59
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    by the receive eye mask should be done with reverse channel traffic present in order that the effects of crosstalk are taken into account. 60 Savvio 15K SAS Product Manual, Rev. B
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    . The X1 points in the receive tolerance masks are greater than the X1 points in the receive masks, due to the addition of sinusoidal jitter. Savvio 15K SAS Product Manual, Rev. B 61
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    . The OOB sequence is performed at signal voltage levels corresponding to the lowest supported transfer rate. Table 17 specifies the signal characteristics. Table 17: Transmitter signal 20 < 50 273 67 10 ± 25 ± 50 3.0 Gbps 15 < 50 137 67 10 ± 25 ± 50 62 Savvio 15K SAS Product Manual, Rev. B
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    unwanted signal amplitude at receiver terminals DR, CR, and XR coupled from signals and noise sources other than the desired signal. Refer to SFF-8410. Savvio 15K SAS Product Manual, Rev. B 63
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    protocol frame is used for all jitter testing unless otherwise specified. See the SAS Interface Manual for definition of the required pattern on the physical link and information regarding special considerations for scrambling and running disparity. 64 Savvio 15K SAS Product Manual, Rev. B
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    /40 max 20 min/40 max ohm 60 min/115 max 60 min/115 max ohm 5 5 ohm 15 min/40 max 15 min/40 max Savvio 15K SAS Product Manual, Rev. B 65
  • Seagate Savvio 15K | Savvio 15K SAS Product Manual - Page 74
    enclosures interconnected by a common ground return or ground plane). 9.5.2.4.1 Transmitter characteristics The drive are D.C. coupled. A combination of a zero-length test load and the transmitter in dB is given by the following equation for 1.5 Gbps: 66 Savvio 15K SAS Product Manual, Rev. B
  • Seagate Savvio 15K | Savvio 15K SAS Product Manual - Page 75
    masks are shown in 9.5.2.1. Figure 19 shows the compliance interconnect test load. Tx+ Tx- TCTF 10 nF 50 ohm Probe points 10 nF 50 ohm SAS internal connector Figure 19. Compliance interconnect test load Savvio 15K SAS Product Manual, Rev. B 67
  • Seagate Savvio 15K | Savvio 15K SAS Product Manual - Page 76
    zero-length test load. Tx+ Tx- 10 nF 50 ohm Probe points 10 nF 50 ohm SAS internal connector Figure 20. Zero-length test load Figure 21 shows an ISI loss example at 3.0 0.15 0.75 1.5 Frequency (GHz) Figure 22. ISI loss example at 1.5 Gbps 68 Savvio 15K SAS Product Manual, Rev. B
  • Seagate Savvio 15K | Savvio 15K SAS Product Manual - Page 77
    drive receiver is A.C. coupled. The receive network terminates the TxRx connection by a 100 ohm equivalent impedance as specified in table 21. The receiver operates within a BER of 10-12 when a SAS jitter reduces the eye opening in both voltage and time. Savvio 15K SAS Product Manual, Rev. B 69
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    70 Savvio 15K SAS Product Manual, Rev. B
  • Seagate Savvio 15K | Savvio 15K SAS Product Manual - Page 79
    service access to critical applications, personalized content and the tools that allow our partners to manage their Seagate account functions. Submit pricing with a technical support specialist during normal business hours for the call center in your region. Savvio 15K SAS Product Manual, Rev. B
  • Seagate Savvio 15K | Savvio 15K SAS Product Manual - Page 80
    East and Africa, go to the "Contact Us" page on www.seagate.com. Asia/Pacific Support Services For an extensive list of telephone numbers to technical support, presales and warranty service in Asia/Pacific, go to the "Contact Us" page on www.seagate.com. 72 Savvio 15K SAS Product Manual, Rev. B
  • Seagate Savvio 15K | Savvio 15K SAS Product Manual - Page 81
    service drive select 57 dual port support 44 E electrical description of connector 57 signal characteristics 59 specifications 23 electromagnetic compatibility 3 electromagnetic susceptibility 33 EMI requirements 3 environment 40 environmental limits 29 requirements 15 Savvio 15K SAS Product Manual
  • Seagate Savvio 15K | Savvio 15K SAS Product Manual - Page 82
    equipment 41 hot plugging the drive 16 humidity 29 humidity limits 29 I Idle Read After Write 38 inquiry data 49 installation 39 guide 5 interface commands supported 45 error rate 15 errors configuration 34 mounting configuration dimensions 34 MTBF 15, 16, 29 Savvio 15K SAS Product Manual, Rev. B
  • Seagate Savvio 15K | Savvio 15K SAS Product Manual - Page 83
    data heads 11 receivers 58 recommended mounting 31 Recoverable Errors 15 Savvio 15K SAS Product Manual, Rev. B recovered media data 15 reference documents 5 relative humidity 29 reliability 9 specifications 15 reliability and service 16 repair and return information 21 reporting actual retry count
  • Seagate Savvio 15K | Savvio 15K SAS Product Manual - Page 84
    Function not supported 05 43 Function reject 04 43 task set full status 53 technical support services 71 drive 21 U unformatted 9 Unrecoverable Errors 15 unrecovered media data 15 V vibration 30, 32 W warranty 20 Z zero latency read 53 zone bit recording (ZBR) 8 76 Savvio 15K SAS Product Manual
  • Seagate Savvio 15K | Savvio 15K SAS Product Manual - Page 85
  • Seagate Savvio 15K | Savvio 15K SAS Product Manual - Page 86
    Seagate Technology LLC 920 Disc Drive, Scotts Valley, California 95066-4544, USA Publication Number: 100407739, Rev. B, Printed in USA
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PRODUCT MANUAL
Savvio
®
15K SAS
100407739
Rev. B
March 2007
ST973451SS
ST936751SS