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Cheetah 4LP
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Disc Drive
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ST34501N/W/WC/WD/DC
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Installation Guide
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Contents Preface.........................................................................................1 Electrostatic discharge protection................................................2 Important safety information and precautions..............................3 Wichtige Sicherheitshinweise ......................................................5 Regulatory agency compliance....................................................8 Seagate technical support services................................
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Cheetah 4LP Installation Guide, Rev. B 1 Preface This manual contains information for users of the Seagate® Cheetah 4LP SCSI disc drives. It provides support services, per- formance specifications, and initial setup information. Additional information is available in the Cheetah 4LP Product Manual (part number 83329120). Contact your Seagate sales representative if you need to order this publication. Attention. This high performance Cheetah disc drive MUST have proper power and cooling considera
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2 Cheetah 4LP Installation Guide, Rev. B Electrostatic discharge protection Caution. Removal of circuit boards by personnel not perform- ing depot repair will damage components and may void the warranty. All drive electronic assemblies are sensitive to static electricity, due to the electrostatically sensitive devices used within the drive circuitry. Although some devices such as metal-oxide semiconductors are extremely sensitive, all semiconductors, as well as some resistors and capacitors, may
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Cheetah 4LP Installation Guide, Rev. B 3 Important safety information and precautions Caution. Use forced-air ventilation when bench-testing the drive to ensure proper cooling of drive components. Use proper safety techniques for safe, reliable operation of this unit. The procedures in this manual and labels on the unit contain warnings and cautions that must be carefully read and followed to minimize or eliminate the risk of personal injury. The warnings point out conditions or practices that
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4 Cheetah 4LP Installation Guide, Rev. B • Do not separate the head and disc assembly (HDA) from the PCB. Return the entire drive for depot repair if the HDA is defective. • Do not attempt to disassemble the HDA. It is not field repair- able. If the sealed HDA is opened by personnel not performing depot repair, this will damage components and void the warranty. As a component, this drive is designed to be installed and oper- ated in accordance with UL1950, EN60950, CSA C22.2 950- M89, and VDE080
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Cheetah 4LP Installation Guide, Rev. B 5 Wichtige Sicherheitshinweise Vorsicht. Beim Testen des Laufwerks auf dem Prüftisch ist Fremdbelüftung vorzusehen, um eine ausreichende Kühlung der Laufwerkkomponenten sicherzustellen. Verwenden Sie geeignete Sicherheits- um den sicheren, zuver- lässigen Betrieb dieser Einheit zu gewährleisten. Die Verfahren in diesem Handbuch und die Aufkleber auf dem Gerät enthalten Warn- und Vorsichtshinweise. Diese Hinweise sind sorgfältig durchzulesen und zu beachten
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6 Cheetah 4LP Installation Guide, Rev. B • Treffen Sie beim Betrieb, bei der Installation oder bei der Entfernung der Einheit angemessene Sicherheitsvorkehrun- gen. • Wenn eine Einheit unter Spannung steht, gehen Sie bei der Fehlerdiagnose besonders vorsichtig vor. Schalten Sie die Einheit aus, bevor Sie mit den Installations-und Entfernung- sarbeiten beginnen. • Wenn das Laufwerk in einem Einbaugestell oder Gehäuse montiert ist, sorgen Sie dafür, daß die Temperatur im Inneren des Gestells oder
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Cheetah 4LP Installation Guide, Rev. B 7 digen hat eine Beschädigung der Komponenten und Erlöschen des Garantieanspruchs zur Folge. Als Teilkomponente ist dieses Laufwerk für die Installation und den Betrieb in Übereinstimmung mit UL 1950, EN60950, CSA C22.2 950-M89 und VDE0805 vorgesehen. Seagate ist ständig bemüht, die Zulassungsfähigkeit von Seagate-Produkten im Rahmen der gegenwärtig geltenden Standards zu gewährleisten. Zu den typischen Anwendungen dieser Festplattenwerke zählen Systemeinb
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8 Cheetah 4LP Installation Guide, Rev. B Regulatory agency compliance Electromagnetic susceptibility As a component assembly, the drive is not required to meet any susceptibility performance requirements. It is the responsibility of those integrating the drive within their systems to perform those tests required and design their system to ensure that equipment operating in the same system as the drive or external to the sys- tem does not adversely affect the performance of the drive. See Table 2
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Cheetah 4LP Installation Guide, Rev. B 9 Electromagnetic compliance for the European Union If this model has the CE Marking it complies with the European Union requirements of the Electromagnetic Compatibility Direc- tive 89/336/EEC of 03 May 1989 as amended by Directive 92/ 31/EEC of 28 April 1992 and Directive 93/68/EEC of 22 July 1993. Australian C-Tick If this model has the C-Tick Marking it complies with the Austra- lia/New Zealand Standard AS/NZS3548 1995 and meets the Electromagnetic Comp
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10 Cheetah 4LP Installation Guide, Rev. B 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 sup- port services listed below. SeaFONE® 1-800-SEAGATE Seagate’s 800 number (1-800-732-4283) allows toll-fr
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Cheetah 4LP Installation Guide, Rev. B 11 Seagate CompuServe forum 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 mes- sages. SeaBOARD® SeaBOARD is a computer bulletin board system that contains information about Seagate disc and tape drive products an
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12 Cheetah 4LP Installation Guide, Rev. B FAX services SeaFAX® You can use a touch-tone telephone to access Seagate’s auto- mated FAX system to receive technical support information by return FAX. This service is available 24 hours daily. Location Phone number Australia 61-2-9756-5170 England 44-1628-894084 USA 1-800-SEAGATE or 408-456-4496 Seagate technical support FAX You can FAX questions or comments to technical support spe- cialists 24 hours daily. Responses are sent during business hours.
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Cheetah 4LP Installation Guide, Rev. B 13 Direct-support services Seagate technical support For one-on-one help, you can talk to a technical support special- ist during local business hours. Before calling, note your system configuration and drive model number (STxxxx). Location Phone number Australia 61-2-9725-3366 (9:00 A.M. to 5:00 P.M., M–F) England 44-1628-894083 (10:00 A.M. to 1:00 P.M., 2:00 P.M. to 5:00 P.M., M–F) France 33 1-41 86 10 86 (9:30 A.M. to 12:30 P.M., 2:00 P.M. to 5:00 P.M.
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14 Cheetah 4LP Installation Guide, Rev. B Customer service centers Seagate direct OEM, Distribution, and Systems Integrator cus- tomers should contact their Seagate service representative 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. Location Phone number FAX number Asia Pacific and Australia 65-485-3595 65-485-4980 Europe, Middle East, and Africa 31-
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Cheetah 4LP Installation Guide, Rev. B 15 General description Cheetah 4LP SCSI disc drives are high-speed, random-access digital-data storage devices. The drive is a component for installation in an enclosure designed for the drive. This is often a rack within the system or an external enclosure designed to house one or more disc drives or other peripheral units. In either case, the disc drive must receive adequate cooling (refer to “Providing adequate cooling”) and it must be sufficiently grou
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16 Cheetah 4LP Installation Guide, Rev. B Table 1. Drive characteristics Characteristics of the various drives covered by this manual are given in the following tables. Interface type: SCSI Fast-20 (also called 1 Ultra SCSI ) Cylinders (user accessable): 6,526 Disk rotation: 10,033 r/min ±0.5% Avg. latency: 2.99 msec 2 Seek time Average read (typical) 7.7 msec Average write (typical) 8.7 msec Internal transfer rate 122 to 177 Mbits/sec (variable with zone) Multi-segmented cache 512 Kbytes 1 Als
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Cheetah 4LP Installation Guide, Rev. B 17 Table 1a. Additional drive characteristics Legend for following table listing other drive characteristics: A = capacity, unformatted, Gbytes 1 B = capacity, formatted, Gbytes C = number of read/write data heads D = max. synchronous SCSI interface transfer rate, Mbytes/sec Model ABC D ST34501N 6,008 4,550 8 20 ST34501W 6,008 4,550 8 40 ST34501WC 6,008 4,550 8 40 ST34501WD 6,008 4,550 8 40 ST34501DC 6,008 4,550 8 40 1 Standard OEM units formatted with 512
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18 Cheetah 4LP Installation Guide, Rev. B Table 2. DC power requirements (Amps) ST34501 N, W, WC models WD, DC models 8, 10 8 8 8 +5V +12V +5V +12V 5 2 2 Voltage regulation ± 5% ± 5% ± 5% ± 5% Max. start current 3, 6, 9 Peak DC 0.88 2.2 0.89 2.2 Delayed motor start 1, 4 (max) 0.81 0.08 0.72 0.08 Peak operating current 1 Typical DC 0.85 0.89 1.05 0.89 1 Maximum DC 0.9 0.94 1.09 0.94 7 Maximum (peak) AC 1.0 1.98 — 1.98 1 Measured with an average reading DC ammeter. Instanta- neous +12V curren
