Seagate Savvio 15K Product Manual
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Seagate Savvio 15K Product Manual

Seagate Savvio 15K Product Manual

Savvio 15k sas series
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PRODUCT MANUAL
Savvio
ST973451SS
ST936751SS
100407739
Rev. B
March 2007
15K SAS
®

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Summary of Contents for Seagate Savvio 15K

  • Page 1 PRODUCT MANUAL Savvio 15K SAS ® ST973451SS ST936751SS 100407739 Rev. B March 2007...
  • Page 2 United States and/or other countries. Savvio, SeaTools and SeaTDD are either trademarks or regis- tered 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.
  • Page 3 Revision status summary sheet Revision Date Notes Rev. A 09/15/06 Initial release. Rev. B 03/28/07 Changes per ECR0076456. Savvio 15K SAS Product Manual, Rev. B...
  • Page 4 Savvio 15K SAS Product Manual, Rev. B...

  • Page 5: Table Of Contents

    Temperature........... . 29 Savvio 15K SAS Product Manual, Rev. B...
  • Page 6 Seagate Technology support services ........
  • Page 7 ISI loss example at 1.5 Gbps ..........68 Savvio 15K SAS Product Manual, Rev. B...

  • Page 9: Scope

    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 Manual, Rev. B...
  • Page 10 Savvio 15K SAS Product Manual, Rev. B...

  • Page 11: Applicable Standards And Reference Documentation

    Section 8.3. Standards The Savvio family complies with Seagate standards as noted in the appropriate sections of this manual and the Seagate SAS Interface Manual, part number 100293071. The Savvio disc drive is a UL recognized component per UL1950, CSA certified to CAN/CSA C22.2 No. 950- 95, and VDE certified to VDE 0805 and EN60950.

  • Page 12: Electromagnetic Compliance

    • External modem • Mouse Although the test system with this Seagate model complies with the directives/standards, we cannot guarantee that all systems will comply. The computer manufacturer or system integrator shall confirm EMC compliance and provide the appropriate marking for their product.

  • Page 13: European Union Restriction Of Hazardous Substances (Rohs)

    Lead (Pb), in electronic products effective July 2006. A number of parts and materials in Seagate products are procured from external suppliers. We rely on the rep- resentations of our suppliers regarding the presence of RoHS substances in these parts and materials. Our...
  • Page 14 Savvio 15K SAS Product Manual, Rev. B...

  • Page 15: General Description

    Savvio drives decode track 0 location data from the servo data embedded on each surface to eliminate mechanical transducer adjustments and related reliability concerns. The 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, Rev. B...

  • Page 16: Standard Features

    • 300 Mbytes/sec maximum instantaneous data transfers • 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 Savvio 15K SAS Product Manual, Rev. B...

  • Page 17: Reliability

    68,165,733 4102065h 2. Seagate drives also may be used at the maximum available capacity at a given block size, but the excess capacity above the guaranteed level will vary between other drive families and from generation to genera- tion, depending on how each block size actually formats out for zone frequencies and splits over servo bursts.

  • Page 18: Options

    Units shipped individually require additional protection as provided by the 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.

  • Page 19: Performance Characteristics

    Full stroke Typical Typical access times are measured under nominal conditions of temperature, voltage, and horizontal orientation as measured on a representative sample of drives. Access to data = access time + latency time. Savvio 15K SAS Product Manual, Rev. B...

  • Page 20: Format Command Execution Time

    Average rotational latency 2.0 msec *Assumes no errors and no relocated logical blocks. Rate measured from the start of the first logical block transfer to or from the host. Savvio 15K SAS Product Manual, Rev. B...

  • Page 21: Start/Stop Time

    Case A—read command is 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...

  • Page 22: Caching Write Data

    When prefetch (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. Savvio 15K SAS Product Manual, Rev. B...

  • Page 23: Reliability Specifications

    If an unrecoverable data error is detected, a MEDIUM ERROR (03h) in the Sense Key will be reported. Multiple unrecoverable data errors resulting from the same cause are treated as 1 error. Savvio 15K SAS Product Manual, Rev. B...

  • Page 24: Seek Errors

    Caution. The drive motor must come to a complete stop prior to changing the plane of operation. This time is Savvio 15K SAS Product Manual, Rev. B...

  • Page 25: S.m.a.r.t

    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. Savvio 15K SAS Product Manual, Rev. B...

  • Page 26: Thermal Monitor

    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 Savvio 15K SAS Product Manual, Rev. B...
  • Page 27 DST. It is the responsibility of the host application to determine the “not ready” cause. While not technically part of DST, a Not Ready condition also qualifies the drive to be returned to Seagate as a failed drive.

  • Page 28: Product Warranty

    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...
  • Page 29 Seagate will pay for transporting the repair or replacement item to the customer. For more detailed warranty information, refer to the standard terms and conditions of purchase for Seagate products on your pur- chase documentation. The remaining warranty for a particular drive can be determined by calling Seagate Customer Service at 1-800-468-3472.
  • Page 30 Savvio 15K SAS Product Manual, Rev. B...

  • Page 31: Physical/Electrical Specifications

    Delayed motor start (max) DC 3σ [1] [4] 0.60 0.03 0.63 0.03 Operating current: Typical DCX 0.72 0.38 0.75 0.39 Maximum DC 3σ 0.73 0.41 0.76 0.40 Maximum (peak) DC 3σ 1.40 1.16 1.42 1.18 Savvio 15K SAS Product Manual, Rev. B...
  • Page 32 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. Savvio 15K SAS Product Manual, Rev. B...

  • Page 33: Conducted Noise Immunity

    Current profiles Typical +12V and +5V current profiles are shown below . Note: All times and currents are typical. See Tables 2 and 3 for maximum current requirements. Figure 1. Typical ST973451SS current profile Savvio 15K SAS Product Manual, Rev. B...

  • Page 34: Figure 2. Typical St936751Ss Current Profile

    Figure 2. Typical ST936751SS current profile Savvio 15K SAS Product Manual, Rev. B...

  • Page 35: Power Dissipation

    6.00 0.400 4.00 0.200 2.00 0.000 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...

  • Page 36: Figure 5. St936751Ss (3 Gbit) Dc Current And Power Vs. Input/Output Operations Per Second

    2.00 0.000 0.00 50.0 1 00.0 1 50.0 200.0 250.0 300.0 350.0 400.0 450.0 I/Os pe r Se cond Figure 6. ST936751SS (1.5 Gbit) DC current and power vs. input/output operations per second Savvio 15K SAS Product Manual, Rev. B...

  • Page 37: Environmental Limits

    Non-operating –40° to 158°F (–40° to 70°C) package ambient with a maximum gradient of 36°F (20°C) per hour. This specification assumes that the drive is packaged in the shipping container designed by Seagate for use with drive. HDA Temp.

  • Page 38: Effective Altitude (Sea Level)

    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. Savvio 15K SAS Product Manual, Rev. B...

  • Page 39: Figure 8. Recommended Mounting

    36 in (914 mm) Drives packaged 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.

  • Page 40: Air Cleanliness

    The sil- ver, copper, nickel and gold films used in Seagate products are especially sensitive to the presence of sulfide, chloride, and nitrate contaminants. Sulfur is found to be the most damaging. In addition, electronic components should never be exposed to condensing water on the surface of the printed circuit board assembly (PCBA) or exposed to an ambient relative humidity greater than 95%.

  • Page 41: Acoustics

    There will not be any discrete tones more than 10 dB above the masking noise on typical drives when mea- sured according to Seagate specification 30553-001. There will not be any tones more than 24 dB above the masking noise on any drive.

  • Page 42: Mechanical Specifications

    Refer to Figure 9 for detailed mounting configuration dimensions. See Section 8.3, “Drive mounting.” Height: 0.583 in 14.8 mm Width: 2.76 in 70 mm Depth: 3.957 in 100.5 mm Weight: 0.50 pounds 0.227 kilograms Temperature Measurement Location Figure 9. Mounting configuration dimensions Savvio 15K SAS Product Manual, Rev. B...

  • Page 43: Defect And Error Management

    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).

  • Page 44: Sas System Errors

    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 com- mands are discussed. Savvio 15K SAS Product Manual, Rev. B...

  • Page 45: Background Media Scan

    DAR is most effective when AWRE and ARRE are enabled—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.

  • Page 46: Idle Read After Write

    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. If a verification of this rewrite fails, the sector is re-mapped to a spare location. Savvio 15K SAS Product Manual, Rev. B...

  • Page 47: Installation

    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 pre- ferred mounting orientations. Savvio 15K SAS Product Manual, Rev. B...

  • Page 48: Cooling

    Note. Air flows in the direction shown (back to front) or in reverse direction (front to back) Above unit Under unit Note. Air flows in the direction shown or in reverse direction (side to side) Figure 11. Air flow Savvio 15K SAS Product Manual, Rev. B...

  • Page 49: Drive Mounting

    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...
  • Page 50 Savvio 15K SAS Product Manual, Rev. B...

  • Page 51: Interface Requirements

    Table 6 lists the SAS response codes returned for task management functions supported. Table 6: Task management response codes Function name Response code Function complete Invalid frame Function not supported Function failed Function succeeded Invalid logical unit Savvio 15K SAS Product Manual, Rev. B...

  • Page 52: Dual Port 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. Savvio 15K SAS Product Manual, Rev. B...

  • Page 53: Scsi Commands Supported

    TMC bit LP bit Protocol-specific Log Page for SAS (18h) Log Sense Application Client Log page (0Fh) Buffer Over-run/Under-run page (01h) Cache Statistics page (37h) Factory Log page (3Eh) Information Exceptions Log page (2Fh) Savvio 15K SAS Product Manual, Rev. B...
  • Page 54 Mode Sense (10) (same pages as Mode Sense 1Ah) Prefetch Read (6) Read (10) DPO bit supported FUA bit supported Read (12) Read (16) Read (32) 7Fh/0009h Read Buffer (modes 0, 2, 3, Ah and Bh supported) Savvio 15K SAS Product Manual, Rev. B...
  • Page 55 Seek (6) Seek (10) Send Diagnostics Supported Diagnostics pages (00h) Translate page (40h) Set Limits Start Unit/Stop Unit (spindle ceases rotating) Synchronize Cache Synchronize Cache (16) Test Unit Ready Verify (10) BYTCHK bit Savvio 15K SAS Product Manual, Rev. B...
  • Page 56 Warning. Power loss during flash programming can result in firmware corruption. This usually makes the drive inoperable. Reference Mode Sense command 1Ah for mode pages supported. Y = Yes. Command is supported. N = No. Command is not supported. A = Support is available on special request. Savvio 15K SAS Product Manual, Rev. B...

  • Page 57: Inquiry Data

    It is not possible to change the current values (or the saved values) with a Mode Select command before the drive achieves operating speed and is “ready.” An attempt to do so results in a “Check Condition” status. Savvio 15K SAS Product Manual, Rev. B...
  • Page 58 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. Savvio 15K SAS Product Manual, Rev. B...
  • Page 59 9c 0a 10 00 00 00 00 00 00 00 00 01 9c 0a 9d 0f ff ff ff ff ff ff ff ff 80 06 00 00 0f 00 00 00 80 06 b7 40 0f 00 00 00 Savvio 15K SAS Product Manual, Rev. B...
  • Page 60 9c 0a 10 00 00 00 00 00 00 00 00 01 9c 0a 9d 0f ff ff ff ff ff ff ff ff 80 06 00 00 0f 00 00 00 80 06 b7 40 0f 00 00 00 Savvio 15K SAS Product Manual, Rev. B...

  • Page 61: Miscellaneous Operating Features And Conditions

    SMP = 1 in Mode Select command needed to save RPL and rotational offset bytes Table 12: Miscellaneous status Supported 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...

  • Page 62: Sas Physical Interface

    Figure 12 shows the location of the SAS device connector J1. Figures 13 and 14 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 12. Physical interface...

  • Page 63: Figure 13. Sas Device Plug Dimensions

    0.08 (4X) 0.30 0.05 (4X) SEE Detail1 33.43 0.05 15.875 15.875 1.27 (14X) 1.27 (6X) 0.84 0.05 (22X) 5.08 0.15 B 4.90 0.08 0.35MIN C OF DATUM B Figure 13. SAS device plug dimensions Savvio 15K SAS Product Manual, Rev. B...

  • Page 64: Figure 14. Sas Device Plug Dimensions (Detail)

    SECTION A - A CONTACT SURFACE FLUSH 0.08 0.05 TO DATUM A 0.03 1.90 0.08 1.23 0.05 Detail 2 0.08 0.05 2.40 0.08 0.10 A SECTION B - B Figure 14. SAS device plug dimensions (detail) Savvio 15K SAS Product Manual, Rev. B...

  • Page 65: Physical Characteristics

    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...

  • Page 66: Sas Transmitters And Receivers

    A typical SAS differential copper transmitter and receiver pair is shown in Figure 15. The receiver is AC cou- pling to eliminate ground shift noise. Differential Transmitter Receiver Transfer Medium Figure 15. SAS transmitters and receivers Savvio 15K SAS Product Manual, Rev. B...

  • Page 67: Power

    -100 µA < I < 100 µA ≤ ≤ LED on, low = 15 mA 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...

  • Page 68: Figure 16. Receive Eye Mask

    Receive eye mask Verifying compliance with the limits represented by the receive eye mask should be done with reverse channel traffic present in order that the effects of crosstalk are taken into account. Savvio 15K SAS Product Manual, Rev. B...

  • Page 69: Figure 17. Reveive Tolerance Eye Mask

    18 for Z1, X1, and X2. 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...

  • Page 70: Figure 18. Sinusoidal Jitter Mask

    Tx Off Voltage mV(P-P) < 50 < 50 Maximum rise/fall time Minimum rise/fall time Maximum transmitter output imbalance ± 25 ± 25 OOB offset delta ± 50 ± 50 OOB common mode delta Savvio 15K SAS Product Manual, Rev. B...
  • Page 71 Rx+ signal and the Rx- signal. e Near-end crosstalk is the 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...
  • Page 72 The CJTPAT within a compliant 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 spe- cial considerations for scrambling and running disparity. Savvio 15K SAS Product Manual, Rev. B...
  • Page 73 100 max Common mode impedance 20 min/40 max 20 min/40 max Transmitter source termination Differential impedance 60 min/115 max 60 min/115 max Differential impedance imbalance Common mode impedance 15 min/40 max 15 min/40 max Savvio 15K SAS Product Manual, Rev. B...
  • Page 74 The TCTF is the mathematical statement of the transfer function through which the transmitter shall be capable of producing acceptable signals as defined by a receive mask. The transmission magnitude response of the TCTF in dB is given by the following equation for 1.5 Gbps: Savvio 15K SAS Product Manual, Rev. B...

  • Page 75: Figure 19. Compliance Interconnect Test Load

    The default mask is IR for intra-cabinet TxRx connections. The eye masks are shown in 9.5.2.1. Figure 19 shows the compliance interconnect test load. 10 nF 50 ohm Probe TCTF points 50 ohm 10 nF SAS internal connector Figure 19. Compliance interconnect test load Savvio 15K SAS Product Manual, Rev. B...

  • Page 76: Figure 20. Zero-Length Test Load

    Compliance interconnect magnitude response and ISI loss example for 1.5 Gbps ISI loss > 2.0 dB -5.4 dB Sample compliance interconnect Frequency (GHz) 0.15 0.75 Figure 22. ISI loss example at 1.5 Gbps Savvio 15K SAS Product Manual, Rev. B...
  • Page 77 The additional jitter reduces the eye opening in both voltage and time. Savvio 15K SAS Product Manual, Rev. B...
  • Page 78 Savvio 15K SAS Product Manual, Rev. B...

  • Page 79: Seagate Technology Support Services

    Seagate Service Centers Presales Support Our Presales Support staff can help you determine which Seagate products are best suited for your specific application or computer system, as well as product availability and compatibility. Technical Support Seagate technical support is available to assist you online at support.seagate.com...
  • Page 80 Seagate Customer Service Operations (CSO) representative for warranty- related 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.
  • Page 81 3 electromagnetic susceptibility 33 cache operation 13 EMI requirements 3 cache segments 14 environment 40 caching write data 14 environmental Canadian Department of Communications 3 limits 29 capacity requirements 15 unformatted 11 Savvio 15K SAS Product Manual, Rev. B...
  • Page 82 49 illustrated 54 mounting 41 physical 54 holes 41 requirements 43 orientations 39 intermediate/condition met/good status 53 mounting configuration 34 intermediate/good status 53 mounting configuration dimensions 34 internal data rate 11 MTBF 15 Savvio 15K SAS Product Manual, Rev. B...
  • Page 83 RCD bit 13 support services 71 read error rates 15 surface stiffness read/write data heads 11 allowable for non-flat surface 41 receivers 58 switches 39 recommended mounting 31 synchronized spindle Recoverable Errors 15 Savvio 15K SAS Product Manual, Rev. B...
  • Page 84 11 tracks per surface 11 transmitters 58 transporting the drive 21 unformatted 9 Unrecoverable Errors 15 unrecovered media data 15 vibration 30 warranty 20 zero latency read 53 zone bit recording (ZBR) 8 Savvio 15K SAS Product Manual, Rev. B...
  • 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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