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Contents Preface ........................................................................................ 1 Electrostatic discharge protection ............................................... 1 Important safety information and precautions ............................. 2 Wichtige Sicherheitshinweise ...................................................... 4 Regulatory agency compliance ................................................... 8 Seagate technical support services ......................................
Cheetah 4LP FC Installation Guide, Rev. B 1 Preface This manual contains information for users of Seagate Cheetah 4LP FC (Fibre Channel interface) disc drives. It provides technical support information, performance specifications, installation instructions, and a troubleshooting section. Additional information is available in the Cheetah 4LP FC Product Manual (part number 83329190). Contact your Seagate sales representative if you need to order this publication.
2 Cheetah 4LP FC Installation Guide, Rev. B • • • all be grounded to avoid potentially damaging static discharges. Do not remove any circuit boards from the drive. Never use an ohmmeter on any circuit boards. When installing the drive on a carrier or tray, discharge the static electricity from the carrier or tray prior to inserting it into the system. Important safety information and precautions Use forced-air ventilation when bench-testing the drive to ensure proper cooling of drive components.
Cheetah 4LP FC Installation Guide, Rev. B 3 first ensure that the method you choose will not risk either your safety or unit performance. Always observe the following warnings and precautions: • Perform all maintenance by following the procedures in this manual. • Follow all cautions and warnings in the procedures. • Use sound safety practices when operating or repairing the unit. • Use caution when troubleshooting a unit that has voltages present. Turn off power to the unit before servicing it.
4 Cheetah 4LP FC Installation Guide, Rev. B Typical applications of these disc drives include customer packaging and subsystem design. Safety agencies conditionally certify component assemblies, such as the Cheetah disc drive, based on their final acceptability in the end-use product. The subsystem designers are responsible for meeting these conditions of acceptability in obtaining safety-regulatory agency compliance in their end-use products and for certifying where required by law.
Cheetah 4LP FC Installation Guide, Rev. B 5 Die Verfahren in diesem Handbuch und die Aufkleber auf dem Gerät enthalten Warn- und Vorsichtshinweise. Diese Hinweise sind sorgfältig durchzulesen und zu beachten, um das Risiko von Verletzungen auf ein Mindestmaß zu beschränken oder ganz zu vermeiden. Die Warnhinweise machen auf Situationen oder Praktiken aufmerksam, die Sie oder andere gefährden könnten.
6 Cheetah 4LP FC Installation Guide, Rev. B • Tragen Sie Sicherheitsschuhe, wenn Sie schwere Teile aus- bzw. einbauen. Wenn das Laufwerk in einem Einbaugestell oder Gehäuse montiert ist, sorgen Sie dafür, daß die Temperatur im Inneren des Gestells oder Gehäuses die für das Laufwerk vorgegebenen Grenzwerte nicht übersteigt. Wenn Einheiten vertikal übereinander betestigt werden, achten Sie besonders auf den oberen Stapelbereich, da dort die Temperatur gewöhnlich am höchsten ist.
Cheetah 4LP FC Installation Guide, Rev. B 7 Als Teilkomponente ist dieses Laufwerk für die Installation und den Betrieb in Übereinstimmung mit UL 1950, IEC950, EN60950, CSA C22.2 950 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 Systemeinbau durch den Kunden und die Konstruktion von Untersystemen.
8 Cheetah 4LP FC 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 system does not adversely affect the performance of the drive.
Cheetah 4LP FC 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 Directive 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.
10 Cheetah 4LP FC 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 support services listed below.
Cheetah 4LP FC 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 messages.
12 Cheetah 4LP FC Installation Guide, Rev. B FAX services SeaFAX® You can use a touch-tone telephone to access Seagate’s automated FAX system to receive technical support information by return FAX. This service is available 24 hours daily. Location Phone number Australia England USA 61-2-9756-5170 44-1628-894084 1-800-SEAGATE or 408-456-4496 Seagate technical support FAX You can FAX questions or comments to technical support specialists 24 hours daily. Responses are sent during business hours.
Cheetah 4LP FC Installation Guide, Rev. B 13 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). Location Phone number Australia England 61-2-9725-3366 (9:00 A.M. to 5:00 P.M., M–F) 44-1628-894083 (10:00 A.M. to 1:00 P.M., 2:00 P.M. to 5:00 P.M., M–F) 33 1-41 86 10 86 (9:30 A.M. to 12:30 P.M., 2:00 P.M. to 5:00 P.M.
14 Cheetah 4LP FC Installation Guide, Rev. B Customer service centers Seagate direct OEM, Distribution, and Systems Integrator customers 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.
Cheetah 4LP FC Installation Guide, Rev. B 15 General description Cheetah 4LP FC disc drives are high-speed, random-access digital-data storage devices designed to be used within a Fibre Channel host system. The drive is a component for installation in an enclosure designed for the drive. The disc drive must receive adequate cooling (refer to “Providing adequate cooling”) and it must be sufficiently grounded and shielded from emissions.
16 Cheetah 4LP FC Installation Guide, Rev. B Characteristics ST34501FC Interface Fibre Channel Arbitrated Loop Capacity Unformatted (Gbytes) Formatted (Gbytes) 5.59 4.52 Recording Cylinders (user) Read/write data heads Servo heads (embedded) Avg bytes/track 6,526 8 0 115,078 Access time Average read (msec) Average write (msec) 7.7 8.7 Disc rotation RPM Average latency (msec) 10,033 2.99 Data transfer rate Maximum instantaneous (Mbytes/sec) 106.
Cheetah 4LP FC Installation Guide, Rev. B 17 Installing the Cheetah 4LP FC drive To install a Cheetah 4LP FC drive, simply plug the drive directly into your system’s Fibre Channel backpanel 40-pin single connector attachment (FC-SCA). There are no jumpers or terminators on the drive, and power is supplied through the connector. Table 1 on page 25 lists the pin descriptions of the 40-pin FCSCA.
18 Cheetah 4LP FC Installation Guide, Rev. B Figure 2 shows one design approach with one or more fans used to generate air flow. The air-flow pattern can be created by the fans either pushing or drawing air. The overall flow pattern must be directed from side to side in most FC-SCA systems. Kühlung des Systems Die Gehäusekonstruktion muß eine ausreichende Kühlung des Laufwerkes gewährleisten.
Cheetah 4LP FC Installation Guide, Rev. B 19 Above unit Under unit Note. Air flows in the direction shown (front to back) or in reverse direction (back to front) Above unit Note. Air flows in the direction shown or in reverse direction (side to side) Under unit Figure 2: Suggested air flow Abbildung 2.
20 Cheetah 4LP FC Installation Guide, Rev. B Mounting the drive Do not touch the connector pins or any components on the control board without observing static-discharge precautions. Always handle the drive by the frame only. Mount the drive to the host system’s chassis using four 6-32 UNC screws. Two mounting holes are in each side of the drive and there are four mounting holes in the bottom of the drive. See Figure 3. The maximum length that the screws should extend into the chassis mounting holes is 0.
Cheetah 4LP FC Installation Guide, Rev. B 21 Schraube nicht ohne Widerstand einschrauben läßt, sind die Gewinde nicht korrekt aneinander ausgerichtet. N P [1] A [3] R C M F D L G E Notes: [1] Mounting holes three on each side, 6-32 UNC. Max screw length into side of drive 0.15 in. (3.81 mm). Screw tightening torque 6.0 in-lb (.675 NM) max with minimum thread engagement of 0.12 in. (3.05 mm). B [5] [2] Mounting holes four on bottom, 6-32 UNC. Max screw length into bottom of drive 0.15 in. (3.
22 Cheetah 4LP FC Installation Guide, Rev. B Inserting the drive Most systems provide a way to insert the drive using a carrier or tray which allows the drive to be hot-plugged into the system’s Fibre Channel 40-pin single connector attachment (FC-SCA). Refer to your system documentation about the method they provide and follow their instructions. When installing the drive on a carrier or tray, discharge the static electricity from the carrier or tray prior to inserting it into the system.
Cheetah 4LP FC Installation Guide, Rev. B 23 Enabling write cache Write caching is a feature that allows the drive to transfer write data to its own cache, tell the controller that the task is complete, and then actually complete the write at a later time. This improves write performance by freeing the CPU to go on to its next command.
24 Cheetah 4LP FC Installation Guide, Rev. B 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] [1] The drive has a 2.2k ohm resistor in series with this LED driver. Connect 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 Installation Guide, Rev.
26 Cheetah 4LP FC Installation Guide, Rev. B Pin/contact Signal name 26 Ground 27* +Port B_in 28* –Port B_in 29 Ground 30* +Port A_out 31* –Port A_out 32 Ground 33* +Port B_out 34* –Port B_out Signal type Diff. PECL input pair Diff. PECL output pair Diff.
Cheetah 4LP FC Installation Guide, Rev. B 27 Troubleshooting Before calling Seagate Technical Support, please read the possibilities discussed below. The suggestions presented here will resolve the majority of installation problems. General installation troubleshooting • • • • Check system compatibility. This is a Fibre Channel (FC) device. Check your system documentation to ensure that it supports FC devices. Check the physical attachment.
Seagate Technology, Inc. 920 Disc Drive, Scotts Valley, CA 95066-4544, USA Publication Number: 83329180, Rev.
