................................................. Cheetah 4LP FC Disc Drive ................................................. ST34501FC ................................................. ................................................. ................................................. Product Manual, Volume 1 .................................................
................................................. Cheetah 4LP FC Disc Drive ................................................. ST34501FC ................................................. ................................................. Product Manual, Volume 1 .................................................
© 1997 Seagate Technology, Inc. All rights reserved July 1997 Publication number: 83329190, Rev. A 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.
Revision status summary sheet Revision Date Writer/Engineer Sheets Affected A 07/11/97 L. Newman/P.
Cheetah 4LP FC Product Manual, Rev. A v Contents 1.0 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2.0 Applicable standards and reference documentation. . . . . . 2.1 Standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.1.1 Electromagnetic compatibility . . . . . . . . . . . . 2.1.1.1 Electromagnetic susceptibility. . . 2.2 Electromagnetic compliance . . . . . . . .
vi Cheetah 4LP FC Product Manual, Rev. A 6.4.3 6.4.4 6.5 6.6 Effective altitude (sea level reference). . . . Shock and vibration . . . . . . . . . . . . . . . . . . 6.4.4.1 Shock. . . . . . . . . . . . . . . . . . . . 6.4.4.2 Vibration. . . . . . . . . . . . . . . . . . 6.4.5 Air cleanliness . . . . . . . . . . . . . . . . . . . . . . Electromagnetic susceptibility . . . . . . . . . . . . . . . . . . Mechanical specifications . . . . . . . . . . . . . . . . . . . . . ...... ...... ...... ...... ...... .
Cheetah 4LP FC Product Manual, Rev. A vii List of figures Figure 1. Figure 2. Figure 3. Figure 4. Figure 5. Figure 6. Figure 7. Figure 8. Figure 9. Figure 10. Figure 11. Figure 12. Figure 13. Figure 14. Figure 15. Figure 16. Cheetah 9FC family disc drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Cheetah 9FC disc drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cheetah 4LP FC Product Manual, Rev. A 1.0 1 Scope This manual describes Seagate® CheetahTM 4LP FC (Fibre Channel) disc drives. Cheetah 4LP FC drives support the Fibre Channel Arbitrated Loop and SCSI Fibre Channel Protocol specifications 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. Figure 1.
Cheetah 4LP FC Product Manual, Rev. A 2.0 3 Applicable standards and reference documentation The drive has been developed as a system peripheral to the highest standards of design and construction. The drive depends upon its host equipment to provide adequate power and environment in order to achieve optimum performance and compliance with applicable industry and governmental regulations.
4 Cheetah 4LP FC Product Manual, Rev. A Australian C-Tick If this model has the C-Tick Marking it complies with the Australia/New Zealand Standard AS/NZS3548 1995 and meets the Electromagnetic Compatibility (EMC) Framework requirements of Australia’s Spectrum Management Agency (SMA). 2.
Cheetah 4LP FC Product Manual, Rev. A 3.0 5 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 characteristics of this drive.
6 Cheetah 4LP FC Product Manual, Rev. A 3.1 Standard features Cheetah 4LP FC drives have the following standard features: • • • • • • • • • • • • • • • • • • • • • • • • • • 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 Drive selection ID and configuration options are set on the FC-AL backpanel or through interface commands. Jumpers are not required on the drive.
Cheetah 4LP FC Product Manual, Rev. A 3.5 7 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. Each region has 108 spares when formatted with 512-byte sectors. ST34501FC Formatted Unformatted 4.52 Gbytes 5.
Cheetah 4LP FC Product Manual, Rev. A 4.0 9 Performance characteristics This section provides detailed information concerning performance-related characteristics and features of Cheetah 4LP FC drives. 4.1 Internal drive characteristics ST34501FC 5.59 ..................Gbytes (unformatted) 4.52 ..................Gbytes (formatted with 512-byte logical blocks) 8 115,078.............Bytes (average, unformatted) 751.0 ................Mbytes (unformatted) 6,526 ................
10 4.2.3 Cheetah 4LP FC Product Manual, Rev. A General performance characteristics ST34501FC Minimum sector interleave 1 to 1 Data buffer to/from disc media (one 512-byte logical block)* Minimum Maximum 15.25 MBytes/sec 22.12 MBytes/sec Fibre Channel Interface maximum instantaneous transfer rate 106.
Cheetah 4LP FC Product Manual, Rev. A 11 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.
12 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. However, the drive does not overwrite data that has not yet been written to the medium.
Cheetah 4LP FC Product Manual, Rev. A 5.0 13 Reliability specifications The following reliability specifications assume correct host and drive operational interface, including all interface timings, power supply voltages, and environmental requirements. Seek error rate: Recoverable media error rate (using default settings): Unrecovered media data: Miscorrected media data: Interface error rate: MTBF: Service life: Preventive maintenance: 5.
14 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. 5.2 S.M.A.R.T. S.M.A.R.T. is an acronym for Self-Monitoring Analysis and Reporting Technology.
Cheetah 4LP FC Product Manual, Rev. A 15 plish this, a counter is incremented each time the error rate is unacceptable and decremented (not to exceed zero) whenever the error rate is acceptable. If the counter continually increments such that it reaches the predictive threshold, a predictive failure is signaled. This counter is referred to as the Failure History Counter. There is a separate Failure History Counter for each attribute. 5.
16 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. Seagate repair centers may refuse receipt of components improperly packaged or obviously damaged in transit. Contact your authorized Seagate distributor to purchase additional boxes.
Cheetah 4LP FC Product Manual, Rev. A 6.0 17 Physical/electrical specifications This section provides information relating to the physical and electrical characteristics of the drive. 6.1 AC power requirements None. 6.2 DC power requirements The voltage and current requirements for a single drive are shown below.Values indicated apply at the drive connector. Table 1: DC power requirements ST34501FC Voltage Regulation Notes [5] +5V ±5% (Amps) +12V ±5%[2] (Amps) Avg idle current [1] [8] 1.
18 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. 0 to 100 kHz 100 kHz to 10 MHz 6.2.2 +5V +12V (with spindle motor not running) 150mV 100mV 150mV 100mV Power sequencing The drive does not require power sequencing.
Cheetah 4LP FC Product Manual, Rev. A 6.4.1 19 Temperature a. Operating The MTBF specification for the drive (1,000,000 hours) is based on operating at a local ambient temperature of 77°F (25°C). Occasional excursions to drive ambient temperatures to 122°F (50°C) may occur without impact to specified MTBF. The enclosure for the drive should be designed such that the case temperatures at the locations specified in Figures 8 and 9 are not exceeded.
20 Cheetah 4LP FC Product Manual, Rev. A c. Non-operating The limits of non-operating shock apply to all conditions of handling and transportation. This includes both isolated drives and integrated drives. The drive subjected to non-repetitive shock not exceeding 50 Gs at a maximum duration of 11 msec (half sinewave) will not exhibit device damage or performance degradation. Shock may be applied in the X, Y, or Z axis.
Cheetah 4LP FC Product Manual, Rev. A 6.6 21 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. A minimum clearance of 0.050 in. (1.27 mm) must be maintained from the PWA side of the drive. Height 1.00 in 25.4 mm Width 4.00 in 101.6 mm Depth 5.75 in 146.05 mm Weight 1.3 lb 0.
Cheetah 4LP FC Product Manual, Rev. A 7.0 23 Defect and error management The drive, as delivered, complies with this product manual. The read error rates and specified storage capacities 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).
Cheetah 4LP FC Product Manual, Rev. A 8.0 25 Installation Cheetah 4LP FC disc drive installation is a plug-and-play process. There are no jumpers, switches, or terminators on the drive which need to be set. Simply plug the drive into the host’s 40-pin Fibre Channel backpanel connector (FC-SCA)—no cables are required. Refer to Section 9.5 for additional information about this connector. The FC-AL interface is used to select drive ID and all option configurations for devices on the loop.
26 Cheetah 4LP FC Product Manual, Rev. A Drive Front Pin 1 J6 Reserved Port A Bypass LED [1] Port B Bypass LED [1] Fault LED [1] Reserved Active LED [2] +5V Active LED [1] Ground [3] Figure 6. 8.2.1 [1] 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. Connect the plus side of the LED to +5V. [2] An external current-limiting resistor is required when connecting an LED to this pin.
Cheetah 4LP FC Product Manual, Rev. A 8.4.1 27 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 measurement guidelines described below. The drive should be oriented, or air flow directed, so that the least amount of air-flow resistance is created while providing air flow to the electronics and HDA.
28 Cheetah 4LP FC Product Manual, Rev. A PCB and HDA temperatures Card Component Reference MTBF 1,000,000 hours at 30°C case temperature (°C) GAAJ GAAJ GAAJ GAAJ HDA OP Amp Servo Control Motor Control Transceiver Figure 9 1 2 3 4 50 48 50 52 56 To obtain the maximum temperature for each of the reference components listed, add 20°C to the 1,000,000 hour MTBF case temperatures. The maximum allowable HDA case temperature is 60°C (see Figure 9).
Cheetah 4LP FC Product Manual, Rev. A 8.5 29 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).
Cheetah 4LP FC Product Manual, Rev. A 9.0 31 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). 9.1 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.
32 Cheetah 4LP FC Product Manual, Rev.
Cheetah 4LP FC Product Manual, Rev. A 9.1.5 33 Fibre Channel port login accept Table 6 identifies the N_Port Login payload values.
34 9.1.8 Cheetah 4LP FC Product Manual, Rev. A 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. Private Loop Yes Public Loop No Old Port State No Loop Position Yes Loop Position Report Yes 9.
Cheetah 4LP FC Product Manual, Rev.
36 Cheetah 4LP FC Product Manual, Rev.
Cheetah 4LP FC Product Manual, Rev. A 37 [2] Warning. Power loss during flash programming can result in firmware corruption. This usually makes the drive inoperable. [3] The 6-byte Reserve and Release commands are not supported because they do not support the thirdparty address space required for Fibre Channel. [4] Reference Mode Sense command 1Ah for mode pages supported. 9.3.
38 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.
Cheetah 4LP FC Product Manual, Rev.
40 Cheetah 4LP FC Product Manual, Rev. A 9.4 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.
Cheetah 4LP FC Product Manual, Rev. A 9.5 41 FC-AL physical interface Figure 10 shows the location of the J1 Fibre Channel single connection attachment (FC-SCA) and the J6 connector. Figure 12 provides the dimensions of the FC-SCA. Figure 13 provides the dimensions of the J6 connector. 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.
42 9.5.2 Cheetah 4LP FC Product Manual, Rev. A Connector requirements Recommended mating SCA part number: Part description Positions Part number Features AMP Vertical (SCA sequence) 40 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 ± .003 (41.1 ± 0.08) 1.447 ± .044 (36.75 ± 1.12) Pin 21 Pin 1 Pin 40 Pin 20 .64 (16.24) .20 max (5.08) 2 places 1.28 (32.47) Mating End Housing .26 (6.72) .276 ± .
Cheetah 4LP FC Product Manual, Rev. A 9.5.4 43 Pin descriptions This section provides a pin-out of the FC-SCA and a description of the functions provided by the pins.
44 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. Three of the +12 volt pins are shorter to allow capacitive pre-charging through the longer +12 volt charge pin.
Cheetah 4LP FC Product Manual, Rev. A 9.5.10 45 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 Start_2 Start_1 Motor spin function 1 Low Low Motor spins up at DC power on. 2 High Low Motor spins up only when SCSI Start command is received.
46 Table 18: Cheetah 4LP FC Product Manual, Rev.
Cheetah 4LP FC Product Manual, Rev. A 9.6 47 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. Table 19: TTL input characteristics State Voltage Current High 2.4 < VIH < 5.5V 0 < IIH < ±100µA Low -0.5V < VIL < 0.4V 0 < IOH < -3 mA 9.6.
48 9.6.4 Cheetah 4LP FC Product Manual, Rev. A 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 < Vin < 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. Vin (mv) 941 ps Figure 16.
Cheetah 4LP FC Product Manual, Rev. A 10.0 49 Seagate technical support services If you need assistance installing your drive, consult your dealer. Dealers are familiar with their unique system configurations and can help you with system conflicts and other technical issues. If you need additional assistance with your Seagate® drive or other Seagate products, use one of the Seagate technical support services listed below.
50 Location Germany Hong Kong Japan Korea Singapore Taiwan USA Cheetah 4LP FC Product Manual, Rev. A Phone number 49-89-1430-5100 852-2368 7173 81-3-5462-2979 82-2-556-7294/4251 65-488-7528 886-2-715-2923 408-944-9120 Direct-support services Seagate technical support For one-on-one help, you can talk to a technical support specialist during local business hours. Before calling, note your system configuration and drive model number (STxxxx).
Cheetah 4LP FC Product Manual, Rev.
52 data rate internal 9 data transfer rate 10 data valid eye 48 Date code page command 34 DC power 42 requirements 17 defect and error management 23 deferred error handling 40 description 5 device selection IDs 25 devices 25 differential PECL input 48 dimensions physical 21 disc rotation speed 9 Disconnect/reconnect control (page 02h) command 35 drive active LED connection 25 drive characteristics 9 drive defects list tracks 23 drive fault LED connection 25 drive ID 25 drive ID/option select headers 25 driv
Cheetah 4LP FC Product Manual, Rev. A H hard assigned arbitrated loop physical address (AL_PA) 25 head and disc assembly (HDA) 5, 27 case temperature measurement location 28 cooling 27 ground 29 heads read/write data 9 high-frequency grounding device 29 hot plugging the drive 16 humidity limits 18, 19 non-operating 19 operating 19 I ID and configuration options 6 Implemented operating def.
54 miscorrected media data 13 mode page 08h 11 Mode select (10) command 36 command 34 Mode sense (10) command 36 command 34 data, table 37, 39 monitoring state 16 Motor Control temperature 28 motor start controls 45 option 10 mounting 29 configuration dimensions 21 holes 29 orientations 26 MTBF 13, 15 defined 15 N N_Port Login (PLOGI) 31 payload 31 payload values 33 no seek complete error (02h) 13 node name 32 noise audible 3 noise immunity 18 Notch and partition page (0C) (media zones) command 35 O old p
Cheetah 4LP FC Product Manual, Rev.
56 task management response codes 31 Function complete 00 31 Function not supported 05 31 Function reject 04 31 task set full status 40 technical support services 49 temperature limits 18 measurement locations 28 regulation 3 test enclosure 28 See also cooling Temperature measurement locations 28 terminate task function 31 terminators 25 Test unit ready command 34 Third-party Process Logout (TRPLO) 31 track follow error (09h) 13 tracks per inch 9 Transceiver temperature 28 Translate page command 35 transmit
Seagate Technology, Inc. 920 Disc Drive, Scotts Valley, California 95066-4544, USA Publication Number: 83329190, Rev.
