Seagate ST446452W Product Manual
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Seagate ST446452W Product Manual

Seagate ST446452W Product Manual

Elite 47 disc drive
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Elite 47 Disc Drive
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ST446452W
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Product Manual, Volume 1
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  • Page 1 ..........ST446452W .
  • Page 3 ..........ST446452W .
  • Page 4 Seagate, Seagate Technology, and the Seagate logo are registered trademarks of Seagate Tech- nology, Inc. Elite, SeaFAX, SeaFONE, SeaNET, SeaTDD, and SeaBOARD are either trademarks or registered trademarks of Seagate Technology, Inc. or one of its subsidiaries. All other trade- marks or registered trademarks are the property of their respective owners.
  • Page 5 Revision status summary sheet Revision Date Writer/Engineer Sheets Affected 01/09/98 L. Newman/B. Rathe This manual is volume 1 of a two-volume document with the SCSI interface information in the volume 2 SCSI Interface Product Manual , part number 77738479. If you need SCSI interface information, order the volume 2 SCSI Interface Product Manual , part number 77738479.

  • Page 7: Table Of Contents

    Elite 47 Product Manual, Rev. A Contents Scope ................1 Applicable standards and reference documentation.
  • Page 8 Seagate technical support services ........
  • Page 9 Elite 47 Product Manual, Rev. A List of Figures Figure 1. Elite 47 disc drive ............1 Figure 2.

  • Page 11: Scope

    Elite 47 Product Manual, Rev. A Scope This manual describes Seagate Technology®, Inc. Elite 47™ disc drives. Elite 47 drives support the small computer system interface (SCSI) as described in the ANSI SCSI, SCSI-2, and SCSI-3 (Fast-20 or Ultra SCSI) interface specifications to the extent described in this manual. The SCSI Interface Product Manual (part number 77738479) describes general SCSI interface characteristics of this and other families of Seagate drives.

  • Page 13: Applicable Standards And Reference Documentation

    Standards The Elite 47 family complies with Seagate standards as noted in the appropriate sections of this manual and the Seagate SCSI Interface Product Manual (volume 2), part number 77738479.

  • Page 14: Reference Documents

    ANSI small computer system interface (SCSI) document numbers: X3.131-1994 SCSI-2 X3.253-1995 SCSI-3 Parallel Interface Package Test Specification Seagate P/N 30190-001 (under 100 lb.) Package Test Specification Seagate P/N 30191-001 (over 100 lb.) In case of conflict between this document and any referenced document, this document takes precedence.

  • Page 15: General Description

    SCSI host adapters. This manual describes the Elite 47 model ST446452W. It has a 68-pin interface connector for a 16-bit data bus. The drive records and recovers data on 5.25-inch (133.4 mm) non-removeable discs.

  • Page 16: Standard Features

    Elite 47 Product Manual, Rev. A Figure 2. Elite 47 family drive Standard features Elite 47 drives have the following standard features: • Integrated SCSI controller • Single-ended SCSI drivers and receivers • 16-bit I/O data bus • Asynchronous and synchronous data transfer protocols •...

  • Page 17: Media Characteristics

    Elite 47 Product Manual, Rev. A • Dynamic spindle brake • Active IC terminators enabled by jumper • 4,096 Kbyte data buffer. See Section 4.5 Media characteristics The media used on the drive has a diameter of approximately 5.25 inches (134 mm). The aluminum substrate is coated with a thin film magnetic material, overcoated with a proprietary protective layer for improved durabil- ity and environmental protection.

  • Page 18: Options (Factory Installed)

    Elite 47 Product Manual, Rev. A Options (factory installed) All options that a customer may request are incorporated during production or packaged at the manufacturing facility before shipping. Some of the options available are: • The capacities shown in Section 3.5. You can order other capacities by selecting other sparing schemes and sector sizes.

  • Page 19: Performance Characteristics

    Elite 47 Product Manual, Rev. A Performance characteristics Internal drive characteristics (transparent to user) ST446452 Drive capacity 62.6 Gbytes (unformatted) [1] Read/write heads Bytes/track 223,855 Bytes (average, unformatted) [1] Bytes/surface 2,238 Mbytes (unformatted) Tracks/surface, total 9,996 Tracks (user accessible) Tracks/inch 8,334 TPI Peak bits/inch 178,847 BPI...
  • Page 20 Elite 47 Product Manual, Rev. A Synchronous transfer rate for fast SCSI-2: 16 bit data bus 5.0 to 40 Mbytes/sec Sector sizes: Default 512-byte data blocks Variable in even-sector sizes 512 to 4,096 bytes per sector Read/write consecutive sectors on a track Flaw reallocation performance impact: For flaws reallocated at format time using spare sectors per track reallocation scheme...

  • Page 21: Start/Stop Time

    Elite 47 Product Manual, Rev. A Start/stop time Disabling the Motor Start option causes the drive to become ready within 45 seconds after DC power is applied at nominal voltage. This means the motor starts as soon as power is applied. If a recoverable error condition is detected during the start sequence, the drive will execute a recovery procedure and may cause the time to become ready to exceed 45 seconds.

  • Page 22: Caching Write Data

    Elite 47 Product Manual, Rev. A Case B - Read command is received and the first logical block address requested is not in any segment of the cache. 1. The drive fetches the requested logical blocks from the disc and transfers them into a segment, then from there to the initiator in accordance with the “buffer-full”...
  • Page 23 Elite 47 Product Manual, Rev. A system performance. The max prefetch field (bytes 8 and 9) limits the amount of prefetch. The drive does not use the prefetch “ceiling” field (bytes 10 and 11). During a prefetch operation, the drive crosses a cylinder boundary to fetch more data only if the Discontinuity (DISC) bit is set to one in bit 4 of byte 2 of Mode parameters page 08h.

  • Page 25: Reliability Specifications

    Elite 47 Product Manual, Rev. A 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 8.4). Seek errors Less than 10 in 10 seeks Read error rates [1] Recovered data...

  • Page 26: Seek Errors

    Elite 47 Product Manual, Rev. A 5.1.4 Seek errors A seek error is defined as a failure of the drive to position the heads to the addressed track. There should not be more than 10 recoverable seek errors in 10 physical seek operations.

  • Page 27: Preventive Maintenance

    Elite 47 Product Manual, Rev. A • Month 1 rate includes a 300 PPM installation failure factor. Month 2,459 1,615 1,594 1,580 1,497 1,426 1,320 1,200 5.2.2 Preventive maintenance No routine scheduled preventive maintenance shall be required. 5.2.3 Service life The drive has a useful service life of 5 years.

  • Page 28: S.m.a.r.t

    Elite 47 Product Manual, Rev. A 5.2.6 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 a drive failure and is designed to provide sufficient warning of a failure to allow data back-up before an actual failure occurs.

  • Page 29: Product Warranty

    Seagate’s option and at no charge to customer, if returned by customer at customer’s expense to Seagate’s designated facility in accordance with Seagate’s Warranty Procedure. Seagate will pay for transport- ing the repair or replacement item to customer.

  • Page 31: Physical/Electrical Specifications

    The voltage and current requirements for a single drive are shown in the following table. Values indicated apply at the drive’s power connector. The power requirements for single-ended models includes the internal disc drive SCSI I/O termination. Current values are in Amperes. Table 1: DC power requirements ST446452W Notes Single-ended Voltage +5 V [8] +12 V Regulation ±5%...

  • Page 32: Conducted Noise Immunity

    Elite 47 Product Manual, Rev. A Seeking is defined as a third-stroke seek at OD. A command is issued every 20 msec. [10] Read track is defined as repeat reads of track 15 with a duty cycle of 63%. General Notes from Table 1: 1.

  • Page 33: Power Dissipation

    Note. All times and currents are typical. See Table 1 for maximum current requirements. Power dissipation ST446452W Typical operating random read power dissipation is 24 watts (82 BTUs per hour) of DC power average at nom- inal voltages. Environmental limits Temperature and humidity values experienced by the drive must be such that condensation does not occur on any drive part.

  • Page 34: Figure 4. Location Of Pcba Components Listed In Table 2

    The maximum case temperatures are calculated and may not reflect actual operating values. Sufficient cooling air may be required to ensure that these values are not exceeded. Measure HDA temperature at point labeled “HDA Temp. Checkpoint” on Figure 4. PCB mounted integrated circuit case. ST446452W Drives HBAJ . 5 0 "...

  • Page 35: Relative Humidity

    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).

  • Page 36: Elite 47 Product Manual, Rev. A

    Elite 47 Product Manual, Rev. A Package Size Packaged/Product Weight Drop Height <600 cu in (<9,800 cu cm) 60 in (1,524 mm) 600-1,800 cu in (9,800-19,700 cu cm) 0-20 lb (0-9.1 kg) 48 in (1,219 mm) >1,800 cu in (>19,700 cu cm) 0-20 lb (0-9.1 kg) 42 in (1,067 mm) >600 cu in (>9,800 cu cm)

  • Page 37: Air Cleanliness

    Elite 47 Product Manual, Rev. A 6.4.4.2 Vibration a. Operating—normal The drive, as installed for normal operation, complies with the complete specified performance while sub- jected to continuous vibration not exceeding: 5-300 Hz @ 0.5 g (X, Y, or Z axis) b.

  • Page 38: Figure 6. Mounting Configuration Dimensions

    Elite 47 Product Manual, Rev. A Notes: Mounting holes two on each side, 6-32 UNC. Max screw length into side of drive 0.17 in. (4.318 mm). Mounting holes four on bottom, 6-32 UNC. Max screw length into bottom of drive 0.18 in. (4.572 mm). Power and interface connections.

  • Page 39: Defect And Error Management

    Elite 47 Product Manual, Rev. A Defect and error management The drive, as delivered, complies with this product manual. The read error rate and specified storage capacities are not dependent on using 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 40 Elite 47 Product Manual, Rev. A Table 3: Read and write retry count maximum recovery times Read retry Maximum recovery time Write retry Maximum recovery time count [1] per LBA (cumulative, msec) count [1] per LBA (cumulative, msec) 1256 2423 1178 12 (default) 3589 1845...

  • Page 41: 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 42: Figure 7. Option Select Jumper Connectors

    Elite 47 Product Manual, Rev. A Pin 2 Pin 4 Pin 1 Pin 1 Pin 15 Pin 3 Pin 1 SCSI ID = 0 (default) SCSI I/O SCSI ID = 1 Connector Pin 1 SCSI ID = 2 DC Power Pin 2 Pin 4 Connector...

  • Page 43: Figure 8. J4A Connections For Activity, Fault, And Ready Led Indicators

    Elite 47 Product Manual, Rev. A Pin 1 SCSI I/O Connector Pin 1 DC Power Connector Pin 18 Pin 16 Pin 1 Pin 15 Pin 17 Reserved Active LED Connector Fault/Ready LED Connector Active CATH Note: On some LEDs the flat Fault side of indicator is cathode.

  • Page 44: Notes For Figure 8

    Elite 47 Product Manual, Rev. A 8.1.1 Notes for Figure 8 Notes explaining the functions of the various jumpers on jumper header connectors J01, J4A and J4B are given here. The term “default” means as standard OEM units are configured with a jumper on those positions when shipped from factory.

  • Page 45: Drive Orientation

    Elite 47 Product Manual, Rev. A Drive orientation The balanced rotary arm actuator design of the drive allows it to be mounted in any orientation. All drive perfor- mance characterization, however, has been done with the drive in horizontal (discs level) and vertical (drive on its side) orientations, and these are the two preferred mounting orientations.

  • Page 46: Drive Mounting

    Elite 47 Product Manual, Rev. A Drive mounting Use the bottom or side mounting holes to secure the drive in the host enclosure. Grounding Signal ground (PCBA) and HDA ground are connected together in the drive and cannot be separated by the user.

  • Page 47: Interface Requirements

    Elite 47 Product Manual, Rev. A Interface requirements This section describes Elite 47 interface requirements. General description This section partially describes the interface requirements as implemented on the drives. The major portion of the interface requirements /implementation is described in the SCSI Interface Product Manual , part number 77738479.

  • Page 48: Scsi Interface Commands Supported

    Elite 47 Product Manual, Rev. A SCSI interface commands supported Table 5 lists the SCSI interface commands that are supported in the SCSI-2 and SCSI-3 modes of the drive. OEM standard drives are shipped set to operate in SCSI-2/SCSI-3 mode. Elite family drives can be changed back and forth between SCSI-1, SCSI-2, and SCSI-3 modes using the Change Definition command.
  • Page 49 Elite 47 Product Manual, Rev. A Table 5: Commands supported by Elite 47 family drive (continued) Command Supported by Command Name Code [5] SCSI-2/3 Mode select (same pages as Mode Y [2] [3] Sense command, see below) Mode select (10) Mode sense Y [2] [3] Caching parameters page (08h)
  • Page 50 Elite 47 Product Manual, Rev. A Table 5: Commands supported by Elite 47 family drive (continued) Command Supported by Command Name Code [5] SCSI-2/3 Seek Seek extended Send diagnostics page Supported diagnostics pages Translate page Set limits Start unit/stop unit (start/stop spindle) Synchronize cache Test unit ready Verify...

  • Page 51: Inquiry Data

    Elite 47 Product Manual, Rev. A 9.3.1 Inquiry data Table 6 following lists the Standard Inquiry command data that the drive returns to the initiator per the format given in the SCSI Interface Product Manual, part number 77738479, section 5.1.1.3. Table 6: Elite 47 family drive Standard Inquiry data Bytes...
  • Page 52 Elite 47 Product Manual, Rev. A Current values are volatile values currently being used by the drive to control its operation. A Mode Select com- mand can be used to change these values (only those that are changeable). Originally, they are installed from saved or default values after a power on reset, hard reset, or Bus Device Reset message.
  • Page 53 Elite 47 Product Manual, Rev. A The following tables list the values of the data bytes returned by the drive in response to the Mode Sense com- mand pages (see SCSI Interface Product Manual, part number 77738479). Definitions: SAV = Saved values are stored on the disk media using a Mode Sense command. DEF = Default value;...

  • Page 54: Scsi Bus Conditions And Miscellaneous Features Supported

    Elite 47 Product Manual, Rev. A 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.

  • Page 55: Synchronous Data Transfer

    SCSI interface connector, and the drive select and option select headers are shown. Details of the physical, electrical and logical characteristics are given in sections following, while the SCSI operational aspects of Seagate drive interfaces are provided in the SCSI Interface Product Manual, part num- ber 77738479.

  • Page 56: Figure 10. Physical Interface

    Elite 47 Product Manual, Rev. A Power +12V +12V ret + 5V ret + 5V Pin 1 J15 DC Power DC Power Connector Pin 1 SCSI I/O Connector Pin 1 Figure 10. Physical interface...

  • Page 57: Scsi Interface Physical Description

    Elite 47 Product Manual, Rev. A 9.6.2 SCSI interface physical description The drives may be daisy-chained together or with other compatible SCSI devices. Both ends of the cable must be terminated. The drives implement single-ended drivers and receivers. All signals are common between all SCSI devices.

  • Page 58: Figure 11. Scsi Daisy-Chain Interface Cabling

    Elite 47 Product Manual, Rev. A 9.6.4.1 Mating connectors for ST446452W models Use a non-shielded 68-conductor cable connector consisting of two rows of 34 male contacts with adjacent contacts 0.050 inch (1.27 mm) apart. Recommended mating wide connector part numbers are:...

  • Page 59: Figure 12. Non-Shielded 68-Pin Scsi Device Connector

    Elite 47 Product Manual, Rev. A Position 1 2X .050 (2.060) 2X R .125 (.197) Figure 12. Non-shielded 68-pin SCSI device connector...
  • Page 60 Elite 47 Product Manual, Rev. A Table 11: Single-ended wide cable assignments for ST446452W drives Connector Cable Connector Signal contact conductor contact Signal name [1] number [3] number [2] number [3] name [1] [9] –DB12 –DB13 –DB14 –DB15 –DBP1 –DB0 –DB1...
  • Page 61 Elite 47 Product Manual, Rev. A Notes: See Section 9.7.1 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 cable types may be used to implement equivalent contact assignments. Connector contacts are on 0.050 inch (1.27 mm) centers.

  • Page 62: Electrical Description

    Elite 47 Product Manual, Rev. A Electrical description ST446452W models use single-ended interface signals. These signals must be terminated with 110-ohm active termination circuits at each end of the total cable. Single-ended circuits use open collector or three state drivers. All of these models can be configured to provide the SCSI termination.

  • Page 63: Terminator Requirements

    Elite 47 Product Manual, Rev. A Terminator requirements Internal disc drive I/O termination consists of active circuits contained in an LSI module that is permanently mounted on the PCB. All single initiator/single target (non-daisy-chain) applications require you to terminate the initiator and drive. Terminate both ends of the SCSI bus with ANSI SCSI-2 standard alternative 2 (active) termination.

  • Page 64: Disc Drive Scsi Timing

    Elite 47 Product Manual, Rev. A 9.10 Disc drive SCSI timing Table 12: Disc drive SCSI timing Waveform Waveform Description symbol [1] table [1] Typical timing Maximum timing Target select time (no arbitration) <1 µs <250 µs Target select time (with arbitration) 4.5-1,2 2.31 µs 2.36 µs...
  • Page 65 Elite 47 Product Manual, Rev. A Waveform Waveform Description symbol [1] table [1] Typical timing Maximum timing Next CDB byte access (byte 9 of 10) T23.10.9 4.5-4 0.13 µs 0.14 µs Next CDB byte access (byte 10 of 10) T23.10.1 4.5-4 0.12 µs 0.12 µs...

  • Page 67: Seagate Technical Support Services

    Online technical support for Seagate products is available on CompuServe. To access our technical support forum, type go seagate . This forum provides information similar to that found on SeaBOARD. In addition, you can type questions or browse through previous questions and answers on the forum messages.
  • Page 68 . (Central time) Monday through Friday. Customer service centers Seagate direct OEM, Distribution, and Systems Integrator customers should contact their Seagate service rep- resentative for warranty information. Other customers should contact their place of purchase. Seagate offers comprehensive customer support for all Seagate drives. These services are available worldwide.
  • Page 69 Elite 47 Product Manual, Rev. A Index cache operation 11 cache statistics page 38 caching parameters page 39 Numerics caching write data 12 capacities 7 12 V current profile 22 unformatted 9 3rd party reserve 39 CDB 12 CE Marking 3 certifications 3 abort change definition command 38...
  • Page 70 Elite 47 Product Manual, Rev. A defect and error management 29 SCSI message 37 deferred error handling 44 extended sense 39 delayed motor start extent reservation 39 power requirements 21 description 5 devices fan 35 multiple 31 Fast-20 5 differential interface circuits available 44 features 6 dimensions miscellaneous 44...
  • Page 71 Elite 47 Product Manual, Rev. A Inquiry data 41 message phase 45 Inquiry Vital Product Data pages 41 message reject installation 31 SCSI message 37 instructions 31 messages interface 45 interface 37 interface cable requirements 47 minimum sector interleave 9 interface cabling 48 miscellaneous features 44 interface commands 38...
  • Page 72 39 SCSI timing 54 read defect data command 39 SCSI-3 (Fast-20) interface 5 read error counter page 38 Seagate support service 31 read error rates 15 search data equal command 39 read errors 15 search data high command 39...
  • Page 73 Elite 47 Product Manual, Rev. A operating—normal 25 TSD bit 38 packaged 25 signal ground 36 simple queue tag Ultra SCSI 5 SCSI message 37 unformatted capacities 7 single-ended drivers/receivers 52 unit attention page 39 single-ended I/O circuits 47 unit serial number page 38 single-ended interface signals 52 unrecoverable error 15 SMP = 1 in Mode Select command 44...
  • Page 76 Seagate Technology, Inc. 920 Disc Drive, Scotts Valley, California 95066-4544, USA Publication Number: 83329280, Rev. A, Printed in USA...

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