Seagate Savvio ST973401LC Product Manual
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Seagate Savvio ST973401LC Product Manual

Seagate Savvio ST973401LC Product Manual

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Savvio SCSI
ST973401LC
ST936701LC

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Summary of Contents for Seagate Savvio ST973401LC

  • Page 1 Users Guide Savvio SCSI ST973401LC ST936701LC...
  • Page 3 Users Guide Savvio SCSI ST973401LC ST936701LC...
  • Page 4 Seagate Technology LLC. Other product names are regis- tered trademarks or trademarks of their owners. Seagate reserves the right to change, without notice, product offerings or specifications. No part of this publication may be reproduced in any form without written permission of Seagate Technology LLC.
  • Page 5 Revision status summary sheet Revision Date Sheets Affected Rev. A 04/09/04 Initial release. Pages 1-71. Rev. B 01/12/05 Rev. C 06/15/05 Pages 17, 34 and 63-37.

  • Page 7: Table Of Contents

    Contents Scope ............... . 1 Applicable standards and reference documentation .
  • Page 8 Seagate Technology support services ........
  • Page 9 List of Figures Figure 1. Savvio SCSI family drive ........... . . 1 Figure 2.

  • Page 11: Scope

    Savvio SCSI drives support the small computer system interface (SCSI) as described in the ANSI SCSI SPI-3 interface specifications to the extent described in this manual. The SCSI Interface Product Manual (part num- ber 75789509) describes general SCSI interface characteristics of this and other families of Seagate drives. Figure 1.
  • Page 12 Savvio SCSI Product Manual, Rev. C...

  • Page 13: Applicable Standards And Reference Documentation

    Mounting by bottom holes must meet the requirements of Section 8.3. Standards The Savvio SCSI family complies with Seagate standards as noted in the appropriate sections of this Manual and the Seagate SCSI Interface Product Manual, part number 75789509.

  • Page 14: Electromagnetic Compliance

    • External modem • Mouse Although the test system with this Seagate model complies to the directives/standard(s), we cannot guarantee that all systems will comply. The computer manufacturer or system integrator shall confirm EMC compliance and provide CE Marking and C-Tick Marking for their product.

  • Page 15: Reference Documents

    T10/1365D SPI-4 (SCSI Parallel Interface version 4) SFF-8451 Specification for SCA-2 Unshielded Connections Package Test Specification Seagate P/N 30190-001 (under 100 lb.) Package Test Specification Seagate P/N 30191-001 (over 100 lb.) Specification, Acoustic Test Requirements, and Procedures Seagate P/N 30553-001 In case of conflict between this document and any referenced document, this document takes precedence.
  • Page 16 Savvio SCSI Product Manual, Rev. C...

  • Page 17: General Description

    Savvio SCSI family of drives, and the SCSI Interface Product Manual, part number 75789509, which describes the general interface characteristics of this and other families of Seagate SCSI drives. The drive’s interface supports multiple initiators, disconnect/reconnect, self-configuring host software, and automatic features that relieve the host from the necessity of knowing the physical characteristics of the targets (logical block addressing is used).

  • Page 18: Standard Features

    Savvio SCSI drives decode track 0 location data from the servo data embedded on each surface to eliminate mechanical transducer adjustments and related reliability concerns. A high-performance actuator assembly with a low-inertia, balanced, patented, straight-arm design provides excellent performance with minimal power dissipation. Standard features The Savvio SCSI family has the following standard features: •...

  • Page 19: Reliability

    137,577,184 83342E0 2. Seagate drives also may be used at the maximum available capacity at a given sector 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 sector size actually formats out for zone frequencies and splits over servo bursts.

  • Page 20: Options (Factory Installed)

    Options (factory installed) All customer requested options are incorporated during production or packaged at the manufacturing facility 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. •...

  • Page 21: Performance Characteristic

    Performance characteristic Internal drive characteristics (transparent to user) ST973401 ST936701 Drive capacity 73.4 36.7 GBytes (formatted, rounded off values) Read/write heads Bytes/track 360,000 360,000 Kbytes (average, rounded off values) Bytes/surface 18,387 18,387 Mbytes (formatted, rounded off values) Tracks/surface (total) 51,052 51,052 Tracks (user accessible) Tracks/inch...

  • Page 22: Generalized Performance Characteristics

    4.2.3 Generalized performance characteristics Minimum sector interleave 1 to 1 Data buffer transfer rate to/from disc media (one 512-byte sector): Minimum Mbytes/sec Maximum Mbytes/sec SCSI interface data transfer rate (asynchronous): Maximum instantaneous one byte wide 5.0 Mbytes/sec [4] Maximum instantaneous two bytes wide 10.0 Mbytes/sec [4] Synchronous transfer rate Ultra320 SCSI...

  • Page 23: Prefetch/Multi-Segmented Cache Control

    Prefetch/multi-segmented cache control The drive provides prefetch (read look-ahead) and multi-segmented cache control algorithms that in many cases can enhance system performance. “Cache” as used herein refers to the drive buffer storage space when it is used in cache operations. To select prefetch and cache features the host sends the Mode Select command with the proper values in the applicable bytes in Mode Page 08h (see the SCSI Command Reference Manual).

  • Page 24: Caching Write Data

    4.5.1 Caching write data Write caching is a write operation by the drive that makes use of a drive buffer storage area where the data to be written to the medium is stored in one or more segments 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 avail- able for future read cache hits.
  • Page 25 want to configure the cache to provide large volumes of sequential data in a non-repetitive manner. In this case, the ability of the cache to “look ahead” to the next contiguous segments of sequential data is a good thing. The Performance Mode (PM) bit controls the way the drive switches the cache buffer into different modes of segmentation.
  • Page 26 Savvio SCSI Product Manual, Rev. C...

  • Page 27: Reliability Specifications

    Reliability specifications The following reliability specifications assume correct host/drive operational interface, including all interface timings, power supply voltages, environmental requirements and drive mounting constraints (see Section 8.3). Seek Errors Less than 10 in 10 seeks Read Error Rates [1] Recovered Data Less than 10 errors in 10 bits transferred (OEM default settings) Unrecovered Data...

  • Page 28: Read Errors

    5.1.2 Read errors Before determination or measurement of read error rates: • The data that is to be used for measurement of read error rates must be verified as being written correctly on the media. • All media defect induced errors must be excluded from error rate calculations. 5.1.3 Write errors Write errors can occur as a result of media defects, environmental interference, or equipment malfunction.

  • Page 29: Preventive Maintenance

    Case 4 - Current I/O process allowed during insertion or removal, except on the device being changed Seagate Savvio SCSI disc drives support all four hot plugging cases. Provision shall be made by the system such that a device being inserted makes power and ground connections prior to the connection of any device signal contact to the bus.

  • Page 30: S.m.a.r.t

    End users should not mix devices with high voltage differential (HVD) drivers and receivers and devices with SE, LVD, or multimode drivers and receivers on the same SCSI bus since the common mode voltages in the HVD environment may not be controlled to safe levels for SE and LVD devices (see ANSI SPI-3). The disc drive spindle must come to a complete stop prior to completely removing the drive from the cabinet chassis.

  • Page 31: Thermal Monitor

    Determining rate S.M.A.R.T. monitors the rate at which errors occur and signals a predictive failure if the rate of degraded error rate increases to an unacceptable level. To determine rate, error events are logged and compared to the num- ber of total operations for a given attribute. The interval defines the number of operations over which to mea- sure the rate.

  • Page 32: Drive Self Test (Dst)

    If DST encounters an error during either of these tests, it reports a fault condition. If the drive fails the test, remove it from service and return it to Seagate for service. 5.2.9.1 DST Failure Definition The drive will present a “diagnostic failed”...
  • Page 33 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. Refer to the Seagate SCSI Interface Product Manual, part number 75789509, for additional information about invoking DST.

  • Page 34: Product Warranty

    Seagate’s option and at no charge to customer, if returned by customer at cus- tomer’s expense to Seagate’s designated facility in accordance with Seagate’s warranty procedure. Seagate will pay for transporting the repair or replacement item to customer.

  • Page 35: Physical/Electrical Specifications

    Physical/electrical specifications This section provides information relating to the physical and electrical characteristics of the Savvio SCSI drive. AC power requirements None. DC power requirements The voltage and current requirements for a single drive are shown in the following table. Values indicated apply at the drive power connector.

  • Page 36: Conducted Noise Immunity

    Operating condition is defined as random 8 block reads at: 259 I/Os per second (ST973401LC) 259 I/Os per second (ST936701LC) During idle, the drive heads are relocated every 60 seconds to a random location within the band from three-quarters to maximum track.

  • Page 37: Figure 2. Typical St973401 Drive +12 V Current Profile

    Figure 2. Typical ST973401 drive +12 V current profile Figure 3. Typical ST973401 drive +5 V current profile Savvio SCSI Product Manual, Rev. C...

  • Page 38: Figure 4. Typical St936701 Drive +12 V Current Profile

    Figure 4. Typical ST936701 drive +12 V current profile Figure 5. Typical ST936701 drive +5 V current profile Savvio SCSI Product Manual, Rev. C...

  • Page 39: Power Dissipation

    300.0 I/Os per Second ST973401 Figure 6. DC current and power vs. input/output operations per second (SE) ST973401LC DC CURRENT/POWER vs THROUGHPUT (Low Voltage Differential) Random 8 Block Reads 1 .400 1 4.00 5Vo lt A 1 2 Vo lt A 1 .200...

  • Page 40: Figure 8. St936701 Dc Current And Power Vs. Input/Output Operations Per Second (Se)

    ST936701 For drives using single-ended interface circuits, typical power dissipation under idle conditions is 4.83 watts (16.5 BTUs per hour). For drives using low voltage differential interface circuits, typical power dissipation under idle conditions is 4.83 watts (16.5 BTUs per hour). To obtain operating power for typical random read operations, refer to the following two I/O rate curves (see Figures 6 and 7).

  • Page 41: 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 42: Relative Humidity

    6.4.2 Relative humidity The values below assume that no condensation on the drive occurs. a. Operating 5% to 95% non-condensing relative humidity with a maximum gradient of 20% per hour. b. Non-operating 5% to 95% non-condensing relative humidity. 6.4.3 Effective altitude (sea level) a.

  • Page 43: Figure 11. 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 44: 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 45: 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 46: Figure 12. Mounting Configuration Dimensions

    2x M3 x 0.5-6H .100 MIN K Z X Y 2x J 2x L 2x M 4x M3 x 0.5-6H 2x N .120 MIN K Z X Y Dimension Table Inches Millimeters 2.755 +/- 0.005 69.98 +/- 0.13 3.945 +/- 0.005 100.20 +/- 0.13 0.583 +/- 0.008...

  • Page 47: Defect And Error Management

    Defect and error management The drive, as delivered, complies with this specification. The read error rate and specified storage capacity are not dependent upon use of defect management routines by the host (initiator). Defect and error management in the SCSI system involves the drive internal defect/error management and SCSI systems error considerations (errors in communications between Initiator and the drive).

  • Page 48: Scsi Systems Errors

    used when data integrity is not a concern and speed is of utmost importance. If the Recovery Time Limit or retry count is reached during error recovery, the state of the RC bit is examined. If the RC bit is set, the drive will transfer the unrecovered data with no error indication and continue to execute the remaining command.

  • Page 49: Installation

    • Installation instructions are provided by host system documentation or with any additionally purchased drive installation software. If necessary see Section 10.0 for Seagate support services telephone numbers. • Do not remove the manufacturer’s installed labels from the drive and do not cover with additional labels, as the manufacturer labels contain information required when servicing the product.

  • Page 50: Drive Mounting

    If forced air is necessary, possible air-flow patterns are shown in Figure 13. The air-flow patterns are created by fans either forcing or drawing air as shown in the illustrations. Conduction, convection, or other forced air- flow patterns are acceptable as long as the temperature measurement guidelines of Section 6.4.1 are met. Above unit Under unit Note.

  • Page 51: Interface Requirements

    No attempt is made to describe all of the minute details of conditions and constraints that must be considered by designers when designing a system in which this family of drives can properly operate. Seagate declares that the drives operate in accordance with the appropriate ANSI Standards referenced in various places herein, with exceptions as noted herein or in the Seagate SCSI Interface Product Manual.

  • Page 52: Scsi Interface Messages Supported

    SCSI interface messages supported Table 12 lists the messages supported by the SCSI-2 and SCSI-3 modes of the Savvio SCSI family drives. Table 12: SCSI messages supported by Savvio SCSI family drives Message name Message code Supported Abort Abort-tag Bus device reset Clear ACA Clear queue Command complete...

  • Page 53: Scsi Interface Commands Supported

    SCSI interface commands supported Table 13 following lists the SCSI interface commands that are supported by the drive. OEM standard drives are shipped set to operate in Ultra320 mode. Table 13: Commands supported by Savvio SCSI family drive Command name Command code Supported Change Definition...
  • Page 54 Table 13: Commands supported by Savvio SCSI family drive (Continued) Command name Command code Supported Last n Error Events page (07h) Non-medium Error page (06h) Pages Supported list (00h) Read Error Counter page (03h) Read Reverse Error Counter page (04h) Self-test Results page (10h) Start-stop Cycle Counter page (0Eh) Temperature page (0Dh)
  • Page 55 Table 13: Commands supported by Savvio SCSI family drive (Continued) Command name Command code Supported Supported Diagnostics pages (00h) Translate page (40h) Release Release (10) Report LUNS Request Sense Actual Retry Count bytes Extended Sense Field Pointer bytes Reserve 3rd Party Reserve Extent Reservation Reserve (10) 3rd Party Reserve...
  • Page 56 Table 13: Commands supported by Savvio SCSI family drive (Continued) Command name Command code Supported Write Long Write Same PBdata LBdata XDRead XDWrite XPWrite The drive can format to any even number of bytes per sector from 512 to 528. Tables 15 show how individual bits are set and which are changeable by the host.

  • Page 57: Inquiry Vital Product Data

    03 means SCSI-3 (Ultra160) implemented. Note. Seagate has chosen to set this bit to 03, SCSI-3 (Ultra160) implemented, rather than 04, SCSI-4 (Ultra320) implemented, due to compatibility issues with some host bus adapters. This setting will not affect the Ultra320 functionality of the drive.
  • Page 58 Saved values are stored on the disc media using a Mode Select command. Only parameter values that are allowed to be changed can be changed by this method. See “Changeable values” defined below. Parameters in the saved values list that are not changeable by the Mode Select command get their values from the default values storage.
  • Page 59 Table 15: ST973401 Mode sense data Bytes 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 Mode 00 ae 00 10 00 00 00 08 08 8b b9 98 00 00 02 00 Sense Data Mode...
  • Page 60 Table 16: ST936701 Mode sense data Bytes 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 Mode 00 ae 00 10 00 00 00 08 04 45 dc cc 00 00 02 00 Sense Data Mode...

  • Page 61: Scsi Bus Conditions And Miscellaneous Features Supported

    SCSI bus conditions and miscellaneous features supported Asynchronous SCSI bus conditions supported by the drive are listed below. These conditions cause the SCSI device to perform certain actions and can alter the SCSI bus phase sequence. Other miscellaneous operating features supported are also listed here. Refer to the SCSI Interface Product Manual for details. Table 4: SCSI bus conditions and other miscellaneous features SCSI-2/SCSI-3...

  • Page 62: Synchronous Data Transfer Periods Supported

    Figure 14 shows the location of the SCSI interface connector. Details of the physical, electrical and logical characteristics are given in sections following, while the SCSI operational aspects of Seagate drive interfaces are given in the SCSI Interface Product Manual. 9.6.1 DC cable and connector SFF.1 LC model drives receive power through the 80-pin I/O connector.

  • Page 63: Scsi Interface Physical Description

    Figure 14. Physical interface (80-pin SCSI I/O connector) 9.6.2 SCSI interface physical description Savvio SCSI drives support the physical interface requirements of the Ultra320 SCSI Parallel Interface-4 (SPI- 4), and operate compatibly at the interface with devices that support earlier SCSI-2 and SCSI-3 standards. It should be noted that this is only true if the systems engineering has been correctly done, and if earlier SCSI-2 and SCSI-3 devices respond in an acceptable manner (per applicable SCSI Standards) to reject newer Ultra320 protocol extensions that they don’t support.

  • Page 64: Scsi Interface Cable Requirements

    Asynchronous Fast-5 Fast-10 (Ultra) (Ultra2) (Ultra160) (Ultra320) ST973401LC ST936701LC ST973401LC ST936701LC 9.6.3 SCSI interface cable requirements The characteristics of cables used to connect parallel interface drives are discussed in the ANSI standards ref- erenced in this section. 9.6.3.1...

  • Page 65: Figure 15. Nonshielded 80-Pin Scsi "Sca-2" Connector

    Right-angle to PCBA connectors Seagate P/N: 77678559 Amp US P/N: 2-557101-1 Amp Japan P/N: 5-175474-9 For additional information call Amp FAX service at 1-800-522-6752. 7.00 (.276) 12.70 End View (.500) Grounding Pins 2.15–0.10 2 places 57.87 (2.278) —0.15 + .000 —...
  • Page 66 Table 20: 80-pin single-ended (SE) I/O connector pin assignments [11] Note. A minus sign preceding a signal name indicates that signal is active low. Connector Signal contact Signal Contact name [1] number [3] number [3] name[1] 12 V CHARGE 12 V GND 12 V 12 V GND 12 V...
  • Page 67 Table 21: 80-pin single-ended (LVD) I/O connector pin assignments [11] Note. A minus sign preceding a signal name indicates that signal is active low. Connector Signal contact Signal Contact name [1] number [3] number [3] name[1] 12 V CHARGE 12 V GND 12 V 12 V GND 12 V...

  • Page 68: Electrical Description

    Notes [ ] for Tables 20 and 21. See Section 9.6.4.1 for detailed electrical characteristics of these signals. The conductor number refers to the conductor position when using 0.025-inch (0.635 mm) centerline flat ribbon cable. Other cables types may be used to implement equivalent contact assignments. Connector contacts are on 0.050 inch (1.27 mm) centers.

  • Page 69: Terminator Requirements

    LVD input characteristics Each differential signal received by LVD interface receiver circuits shall have the following input characteristics when measured at the disc drive connector: Steady state Low level input differential voltage = 0.030 V = < V = < 3.6 V (signal negation/logic 0) Steady state High level input differential voltage = –3.6 V = <...

  • Page 70: Disc Drive Scsi Timing

    Disc drive SCSI timing Table 22: Disc drive SCSI timing These values are not current Savvio SCSI values, but are listed for information only. Waveform Waveform Description symbol [1] table [1] Typical timing Target Select Time (no Arbitration) <1 s Target Select Time (with Arbitration) 4.5-1,2 1.93 s...
  • Page 71 Table 22: Disc drive SCSI timing (Continued) These values are not current Savvio SCSI values, but are listed for information only. Waveform Waveform Description symbol [1] table [1] Typical timing Next CDB Byte Access (Byte 8 of 10) T23.10.8 4.5-4 0.12 s ±1 s Next CDB Byte Access (Byte 9 of 10) T23.10.9...
  • Page 72 Savvio SCSI Product Manual, Rev. C...

  • Page 73: Seagate Technology Support Services

    +1-405-324-4770. 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 drive availability and compatibility. Technical Support If you need help installing your drive, consult your system's documentation or contact the dealer's support ser- vices department for assistance specific to your system.
  • Page 74 Data Recovery Services Seagate offers data recovery services for all formats and all brands of storage media. Our Data Recovery Ser- vices labs are currently located in North America. To get a free quick quote or speak with a case management representative, call 1-800-475-0143.
  • Page 75 European support services For presales and technical support in Europe, dial the Seagate Service Center toll-free number for your spe- cific location. If your location is not listed here, dial our presales and technical support call center at +1-405- 324-4714 from 8:00 .
  • Page 76 Warranty service is available from 9:00 . to 6:00 . April through October, and 10:00 . to 7:00 November through March (Australian Eastern time) Monday through Friday. Seagate Service Centers Call center Toll-free Direct dial Australia 1800-14-7201 —...
  • Page 77 Publication feedback survey We are interested in your comments and suggestions regarding this publication. Please take a few minutes to participate in our survey at the following URL: http://survey.seagate.com/survey/techpubs.nsf Thank you for your time and comments. Savvio SCSI Product Manual, Rev. C...
  • Page 78 Savvio SCSI Product Manual, Rev. C...
  • Page 79 Index cable 52 cache 13 Symbols cache buffer 8 +5 and +12 volt supplies 26 cache miss 13 cache mode 13 Numerics cache operation 13 cache operation hit 14 80 conductor connector 54 cache segment 13 80 conductor interface 54 caching write data 14 80-pin connector option 54 Canadian Department of Communications 3...
  • Page 80 DC power carrying conductor 54 environmental interference 17 DC power requirements 25 environmental limits 31 DC power source 54 environmental requirements 17 dedicated landing zone 7 EPROM 47 default mode parameter 39 equipment malfunction 18 default value 47 error 17 defect/error management 37 error management system 38 delayed motor start option 25...
  • Page 81 mode sense command 47 mode sense command page 08h 13 I/O connector 53 mode sense data 47 identified defect 37 mode sense value 48 idle condition 29 model number table 7 Input characteristics 59 motor start command 12 inquiry command 47 motor start delay option 58 inquiry vital product data 47 motor start option 12...
  • Page 82 47 SCSI systems error 38 programmable drive capacity 9 SCSI systems error consideration 37 SCSI systems error management 38 Seagate support service 39 radio interference regulations 3 sector 13 read 13 sector interleave 12 read command 13...
  • Page 83 software interleave 14 spare part 19 vibration 32 spindle 26 vital product data 47 standard day 31 volatile memory 48 standards 3 voltage 12 start motor command 25 start/stop time 12 status 38 stop spindle 12 warranty 9 stop time 12 wet bulb temperature 31 storage capacity 37 wide Ultra320 SCSI interface 7...
  • Page 86 Seagate Technology LLC 920 Disc Drive, Scotts Valley, California 95066-4544, USA Publication Number: 100293075, Rev. C, Printed in USA...

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