Seagate ST34501FC Cheetah 4LP Product Manual
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Seagate ST34501FC Cheetah 4LP Product Manual

Cheetah 4lp fc disc drive
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Cheetah 4LP FC Disc Drive
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ST34501FC
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Product Manual, Volume 1
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Summary of Contents for Seagate ST34501FC Cheetah 4LP

  • Page 1 ..........Cheetah 4LP FC Disc Drive .
  • Page 3 ..........Cheetah 4LP FC Disc Drive .
  • Page 4 Seagate, Seagate Technology, and the Seagate logo are registered trademarks of Seagate Technology, Inc. Cheetah, SeaFAX, SeaFONE, SeaNET, SeaTDD, and SeaBOARD are either trademarks or registered trademarks of Seagate Technology, Inc. or one of its subsidiaries. All other trademarks or registered trademarks are the property of their respective owners.
  • Page 5 Revision status summary sheet Revision Date Writer/Engineer Sheets Affected 07/11/97 L. Newman/P. Kassel...

  • Page 7: Table Of Contents

    Cheetah 4LP FC Product Manual, Rev. A Contents Scope ................1 Applicable standards and reference documentation.
  • Page 8 Seagate technical support services ........
  • Page 9 Cheetah 4LP FC Product Manual, Rev. A List of figures Figure 1. Cheetah 9FC family disc drive ..........1 Figure 2.

  • Page 11: Scope

    Cheetah 4LP FC drives support the Fibre Channel Arbitrated Loop and SCSI Fibre Channel Protocol specifica- tions to the extent described in this manual. The Fibre Channel Interface Manual (part number 77767496) describes the general Fibre Channel Arbitrated Loop characteristics of this and other Seagate Fibre Channel drives.

  • Page 13: Applicable Standards And Reference Documentation

    Mounting by bottom holes must meet the requirements of Section 8.5. Standards The Cheetah 4LP FC family complies with Seagate standards as noted in the appropriate sections of this man- ual and the Seagate Fibre Channel Interface Manual , part number 77767496 (Vol. 2).

  • Page 14: Reference Documents

    Electromagnetic Compatibility (EMC) Framework requirements of Australia’s Spectrum Man- agement Agency (SMA). Reference documents Cheetah 4LP FC Installation Guide Seagate part number: 83329180 Fibre Channel Interface Manual Seagate part number: 77767496 SCSI Interface Product Manual Seagate part number: 77738479 ANSI Fibre Channel Documents X3.230-1995...

  • Page 15: General Description

    Cheetah 4LP FC Product Manual, Rev. A General description Cheetah 4LP FC drives are random access storage devices designed to support the Fibre Channel Arbitrated Loop (FC-AL) and SCSI Fibre Channel Protocol as described in the ANSI specifications, this document, and the Fibre Channel Interface Manual (part number 77767496) which describes the general interface character- istics of this drive.

  • Page 16: Standard Features

    Cheetah 4LP FC Product Manual, Rev. A Standard features drives have the following standard features: Cheetah 4LP FC • Integrated dual port FC-AL controller • Support for FC-AL (Fibre Channel Arbitrated Loop) • Differential copper FC drivers and receivers • Downloadable firmware using the FC-AL interface •...

  • Page 17: Unformatted And Formatted Capacities

    Cheetah 4LP FC Product Manual, Rev. A Unformatted and formatted capacities The standard OEM models are formatted to 512 bytes per block. ST34501FC drives uses a regional sparing scheme. The drive is divided into regions that are each 12 cylinders wide.

  • Page 19: Performance Characteristics

    Cheetah 4LP FC Product Manual, Rev. A Performance characteristics This section provides detailed information concerning performance-related characteristics and features of Cheetah 4LP FC drives. Internal drive characteristics ST34501FC Drive capacity 5.59 ....Gbytes (unformatted) 4.52 ....Gbytes (formatted with 512-byte logical blocks) Read/write data heads Bytes per track 115,078.....Bytes (average, unformatted)

  • Page 20: General Performance Characteristics

    Cheetah 4LP FC Product Manual, Rev. A 4.2.3 General performance characteristics ST34501FC Minimum sector interleave 1 to 1 Data buffer to/from disc media (one 512-byte logical block)* Minimum 15.25 MBytes/sec Maximum 22.12 MBytes/sec Fibre Channel Interface maximum instantaneous transfer rate 106.3 Mbytes/sec* Logical block sizes Default is 512-byte data blocks...

  • Page 21: Caching Write Data

    Cheetah 4LP FC Product Manual, Rev. A The drive keeps track of the logical block addresses of the data stored in each segment of the cache. If the cache is enabled (see RCD bit in the Fibre Channel Interface Manual ), data requested by the host with a read command is retrieved from the cache, if possible, before any disc access is initiated.
  • Page 22 Cheetah 4LP FC Product Manual, Rev. A If the number of write data logical blocks exceeds the size of the segment being written into when the end of the segment is reached, the data is written into the beginning of the same cache segment, overwriting the data that was written there at the beginning of the operation.

  • Page 23: Reliability Specifications

    Cheetah 4LP FC Product Manual, Rev. A Reliability specifications The following reliability specifications assume correct host and drive operational interface, including all inter- face timings, power supply voltages, and environmental requirements. Seek error rate: Less than 10 errors in 10 seeks Recoverable media error rate Less than 10 errors in 10...

  • Page 24: S.m.a.r.t

    Cheetah 4LP FC Product Manual, Rev. A with a Medium (03h) or Hardware error (04h) reported in the Sense Key. This is an unrecoverable seek error. Unrecoverable seek errors are classified as failures for MTBF calculations. S.M.A.R.T. S.M.A.R.T. is an acronym for Self-Monitoring Analysis and Reporting Technology. This technology is intended to recognize conditions that indicate imminent drive failure and is designed to provide sufficient warning of a failure to allow you to back up the data before an actual failure occurs.

  • Page 25: Reliability And Service

    5.3.6 Product warranty Beginning on the date of shipment to the customer and continuing for a period of five years, Seagate warrants that each product (including components and subassemblies) that fails to function properly under normal use due to defect in materials or workmanship or due to nonconformance to the applicable specifications will be repaired or replaced, at Seagate’s option and at no charge to the customer, if returned by customer at cus-...

  • Page 26: Hot Plugging The Drive

    Cheetah 4LP FC Product Manual, Rev. A Shipping When transporting or shipping a drive, use only a Seagate approved container. Keep your original box. Seagate approved containers are easily identified by the Seagate Approved Package label. Shipping a drive in a non-approved container voids the drive warranty.

  • Page 27: Physical/Electrical Specifications

    Cheetah 4LP FC Product Manual, Rev. A Physical/electrical specifications This section provides information relating to the physical and electrical characteristics of the drive. AC power requirements None. DC power requirements The voltage and current requirements for a single drive are shown below.Values indicated apply at the drive connector.

  • Page 28: Conducted Noise Immunity

    Cheetah 4LP FC Product Manual, Rev. A 6.2.1 Conducted noise immunity Noise is specified as a periodic and random distribution of frequencies covering a band from DC to 10 MHz. Maximum allowed noise values given below are peak-to-peak measurements and apply at the drive power connector.

  • Page 29: Temperature

    Non-operating temperature should remain between –40°F to 158°F (–40°C to 70°C) package ambient with a maximum gradient of 36°F (20°C) per hour. This assumes that the drive is packaged in the shipping con- tainer designed by Seagate. 6.4.2 Relative humidity The values below assume that no condensation on the drive occurs.

  • Page 30: Vibration

    The drive as packaged in a single or multiple drive pack of gross weight 20 pounds (8.95 kg) or less by Seagate for general freight shipment will withstand a drop test from 48 inches (1,070 mm) against a con- crete floor or equivalent.

  • Page 31: Mechanical Specifications

    Cheetah 4LP FC Product Manual, Rev. A Mechanical specifications The following nominal dimensions are exclusive of the decorative front panel accessory. Refer to Figure 4 for detailed mounting configuration dimensions for the drive. Refer to Figure 12 for detailed FC-AL SCA connector dimensions.

  • Page 33: Defect And Error Management

    Cheetah 4LP FC Product Manual, Rev. A Defect and error management The drive, as delivered, complies with this product manual. The read error rates and specified storage capaci- ties are not dependent upon use of defect management routines by the host (initiator). Defect and error management in the SCSI protocol involves the drive internal defect/error management and FC-AL system error considerations (errors in communications between the initiator and the drive).

  • Page 35: Installation

    Cheetah 4LP FC Product Manual, Rev. A Installation Cheetah 4LP FC disc drive installation is a plug-and-play process. There are no jumpers, switches, or termina- tors on the drive which need to be set. Simply plug the drive into the host’s 40-pin Fibre Channel backpanel —...

  • Page 36: J6 Connector Requirements

    Cheetah 4LP FC Product Manual, Rev. A Drive Front Pin 1 Reserved Port A Bypass LED [1] Port B Bypass LED [1] Fault LED [1] Reserved Active LED [2] Active LED [1] Ground [3] The drive has a 2.2K ohm resistor in series with this LED driver. Tie the minus side of an external high-efficiency LED (i.e., 2ma) to this pin.

  • Page 37: Air Flow

    Cheetah 4LP FC Product Manual, Rev. A 8.4.1 Air flow The rack, cabinet, or drawer environment for the drive must provide cooling of the electronics and head and disc assembly (HDA). You should confirm that adequate cooling is provided using the temperature measure- ment guidelines described below.

  • Page 38: Figure 8. Pcb Temperature Measurement Locations

    Cheetah 4LP FC Product Manual, Rev. A PCB and HDA temperatures MTBF 1,000,000 hours at 30°C case temperature Card Component Reference (°C) Figure 9 GAAJ OP Amp GAAJ Servo Control GAAJ Motor Control GAAJ Transceiver To obtain the maximum temperature for each of the reference components listed, add 20°C to the 1,000,000 hour MTBF case temperatures.

  • Page 39: Drive Mounting

    Cheetah 4LP FC Product Manual, Rev. A Drive mounting Mount the drive using the bottom or side mounting holes. If you mount the drive using the bottom holes, ensure that you do not physically distort the drive by attempting to mount it on a stiff, non-flat surface. The allowable mounting surface stiffness is 80 lb/in (14.0 N/mm).

  • Page 41: Interface Requirements

    Cheetah 4LP FC Product Manual, Rev. A Interface requirements This section partially describes the interface requirements as implemented on ST34501FC drives. Additional information is provided in the Fibre Channel Interface Manual (part number 77767496). FC-AL features This section lists the Fibre Channel-specific features supported by ST34501FC drives. 9.1.1 Fibre Channel link service frames Table 2 lists the link services supported by ST34501FC drives.
  • Page 42 Cheetah 4LP FC Product Manual, Rev. A Table 5: N_Port login (PLOGI) payload Bytes 0-15 Common 16-31 32-35 36-47 Class 1 48-51 52-63 Class 2 64-67 68-79 Class 3 80-83 84-95 Reserved 96-99 100-111 Vendor 112-115 Version Indicates a four bit (hex) field is not checked. Indicates a single bit is not checked.

  • Page 43: Fibre Channel Port Login Accept

    Cheetah 4LP FC Product Manual, Rev. A 9.1.5 Fibre Channel port login accept Table 6 identifies the N_Port Login payload values. Table 6: N_Port Login (ACC) payload Bytes 0-15 Common 16-31 32-35 36-47 Class 1 48-51 52-63 Class 2 64-67 68-79 Class 3 80-83...

  • Page 44: Fibre Channel Arbitrated Loop Options

    Cheetah 4LP FC Product Manual, Rev. A 9.1.8 Fibre Channel Arbitrated Loop options Table 9 lists the FC-AL options supported by ST34501FC drives. Table 9: FC-AL options supported Option Supported OPEN Half Duplex Sent to open another device. Accepted from another device. OPEN Full Duplex Accepted from another device.
  • Page 45 Cheetah 4LP FC Product Manual, Rev. A Supported commands (continued) Table 10: Command code Supported Command name Unit attention page (00h) Error recovery page (01h) Disconnect/reconnect control (page 02h) Format page (03h) Rigid disc drive geometry page (04h) Verify error recovery page (07h) Caching parameters page (08h) Control mode page (0Ah) Notch and partition page (0C) (media zones)
  • Page 46 Cheetah 4LP FC Product Manual, Rev. A Supported commands (continued) Table 10: Command code Supported Command name Compare Copy and verify Write buffer Write combined header and data mode (0) Write data mode (2) Download microcode mode (4) Download microcode and save modes (5) Download microcode with offsets mode (6) Download microcode with offsets and save mode (7) Firmware download option [2]...

  • Page 47: Inquiry Data

    Cheetah 4LP FC Product Manual, Rev. A Warning. Power loss during flash programming can result in firmware corruption. This usually makes the drive inoperable. The 6-byte Reserve and Release commands are not supported because they do not support the third- party address space required for Fibre Channel.
  • Page 48 Cheetah 4LP FC Product Manual, Rev. A On standard OEM drives, the saved values are taken from the default values list and stored into the saved values storage location on the media prior to shipping. 3. Current values Current values are volatile values being used by the drive to control its operation. A Mode Select command can be used to change the values identified as changeable values.
  • Page 49 Cheetah 4LP FC Product Manual, Rev. A Table 12: Mode Sense data default values ST34501FC 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 9F 00 10 08 Sense...

  • Page 50: Miscellaneous Operating Features And Conditions

    Cheetah 4LP FC Product Manual, Rev. A Miscellaneous operating features and conditions Table 13 lists various features and conditions. A “Y” in the support column indicates the feature or condition is supported. An “N” in the support column indicates the feature or condition is not supported. Table 13: Miscellaneous features Supported...

  • Page 51: Fc-Al Physical Interface

    Figure 12 provides the dimensions of the FC-SCA. Figure 13 provides the dimensions of the J6 con- nector. Details of the physical, electrical, and logical characteristics are provided within this section. The operational aspects of Seagate’s Fibre Channel drives are provided in the Fibre Channel Interface Manual . Figure 10. Physical interface 9.5.1...

  • Page 52: Connector Requirements

    Cheetah 4LP FC Product Manual, Rev. A 9.5.2 Connector requirements Recommended mating SCA part number: Part description Positions Part number Features AMP Vertical (SCA sequence) 787317-1 With polarization The FC-AL SCA device connector is illustrated in Figure 12. The J6 connector is illustrated in Figure 13. 1.618 ±...

  • Page 53: Pin Descriptions

    Cheetah 4LP FC Product Manual, Rev. A 9.5.4 Pin descriptions This section provides a pin-out of the FC-SCA and a description of the functions provided by the pins. Table 15: FC-SCA pin descriptions Signal name Signal type Signal name Signal type -EN bypass port A TTL output 12 Volts charge...

  • Page 54: Fault Led Out

    Cheetah 4LP FC Product Manual, Rev. A The mating connector pins use shorter contacts to achieve power surge reductions and to aid in “hot plugging” the drives. There are longer voltage contacts in the connector to enable the drive filter capacitors to charge. Current to the drive through the long charge pins is limited by the system in which the drive operates.

  • Page 55: Motor Start Controls

    Cheetah 4LP FC Product Manual, Rev. A 9.5.10 Motor start controls The drive’s motor is started according to the Start_1 and Start_2 signals described in Table 17. The state of these signals can be wired into the backplane socket or driven by logic on the backplane. Table 17: Motor start control signals Case...
  • Page 56 Cheetah 4LP FC Product Manual, Rev. A Table 18: Arbitrated loop physical address (AL_PA) values AL_PA SEL ID Setting AL_PA SEL ID Setting AL_PA SEL ID Setting (hex) (hex) (dec) (hex) (hex) (dec) (hex) (hex) (dec)

  • Page 57: Signal Characteristics

    Cheetah 4LP FC Product Manual, Rev. A Signal characteristics This section describes the electrical signal characteristics of the input and output signal of the drive. Refer to Table 15 on page 43 for signal type and signal name information. 9.6.1 TTL input characteristics Table 19 provides the TTL input characteristics.

  • Page 58: Differential Pecl Input

    Cheetah 4LP FC Product Manual, Rev. A 9.6.4 Differential PECL input The serial PECL input signal voltage characteristics are provided in Table 22. Table 22: Differential PECL input characteristics Description Parameter Notes Serial input voltage swing 200 < V < 1.300 mV AC coupled Figure 16 provides the data valid eye diagram for typical and minimum requirements to recover data at the specified interface error rate.

  • Page 59: 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 60 . (Pacific time) Monday through Friday. Customer service centers Seagate direct OEM, Distribution, and System 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 61 Cheetah 4LP FC Product Manual, Rev. A Index BB-Credit 32 bits per inch 9 bracket shield 29 Numerics buffer data 6 12 volt space 10 current profile 18 busy status 40 pins 43 bypass circuit 16 3rd party reserve command 36 bytes per surface 9 5 volt pins 43 bytes per track 9...
  • Page 62 Cheetah 4LP FC Product Manual, Rev. A data rate error correction code internal 9 96-bit Reed-Solomon 6 data transfer rate 10 Error recovery page (01h) command 35 data valid eye 48 ETF defect list 23 Date code page command 34 Extend reservation command 36 DC power 42 extended link service...
  • Page 63 Cheetah 4LP FC Product Manual, Rev. A Log select command 36 Log sense command 36 hard assigned arbitrated loop physical address logic power 43 (AL_PA) 25 logical block address 11 head and disc assembly (HDA) 5 logical block reallocation scheme 6 case temperature measurement location 28 logical block size 6 cooling 27...
  • Page 64 Cheetah 4LP FC Product Manual, Rev. A miscorrected media data 13 received on Port B 33 mode page 08h 11 parameter rounding 40 Mode select pass-through state 16 (10) command 36 PBC 41 command 34 peak operating current 17 Mode sense peak-to-peak measurements 18 (10) command 36 PECL input 48...
  • Page 65 Cheetah 4LP FC Product Manual, Rev. A RCD bit 11 average typical 9 Read buffer command 36 full stroke typical 9 Read capacity command 35 single track typical 9 Read command 34 segmented caching 40 Read defect data command 35 SEL ID 25 Read extended command 35 lines 45...
  • Page 66 Cheetah 4LP FC Product Manual, Rev. A task management response codes 31 Write extended command 35 Function complete 00 31 Write long command 36 Function not supported 05 31 Write same command 36 Function reject 04 31 task set full status 40 technical support services 49 XID reassign bit 32 temperature...
  • Page 68 Seagate Technology, Inc. 920 Disc Drive, Scotts Valley, California 95066-4544, USA Publication Number: 83329190, Rev. A, Printed in USA...

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