• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • Cheetah 18FC • • • • • • • • • • • • Fibre Channel • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • Disc Drive • • • • • • • • • ST118202FC • • • • • • • • • • • Installation Guide • • • • • • • • • • • • • • •
Contents Preface ........................................................................................ 1 Electrostatic discharge protection ............................................... 1 Important safety information and precautions ............................. 2 Wichtige Sicherheitshinweise ...................................................... 4 European Union Compliance ...................................................... 7 Seagate Technology support services......................................
Cheetah 18FC Installation Guide, Rev. A 1 Preface This manual contains information for users of Seagate Cheetah 18FC (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 18FC Product Manual (part number 83329330). Contact your Seagate sales representative if you need to order this publication. Electrostatic discharge protection Caution.
2 Cheetah 18FC Installation Guide, Rev. A • • • 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 Caution. Use forced-air ventilation when bench-testing the drive to ensure proper cooling of drive components.
Cheetah 18FC Installation Guide, Rev. A 3 peratures are usually highest. • Follow the precautions listed above in “Electrostatic discharge protection.” • Do not remove any circuit boards from the drive chassis. Return the entire drive for depot repair if any circuit board is defective. Removal of circuit boards by personnel not performing depot repair will damage components and may void the warranty. • Do not remove the head and disc assembly (HDA) from the drive.
4 Cheetah 18FC Installation Guide, Rev. A This unit is a component part and as such is not meant to comply with FCC or similar national requirements as a stand-alone unit. Engineering radiated emissions test results are available through the Seagate Safety Department to assist the subsystem designer. Wichtige Sicherheitshinweise Vorsicht. Beim Testen des Laufwerks auf dem Prüftisch ist Fremdbelüftung vorzusehen, um eine ausreichende Kühlung der Laufwerkkomponenten sicherzustellen.
Cheetah 18FC Installation Guide, Rev. A 5 Beachten Sie in jedem Fall die folgenden Warn-und Vorsichtshinweise: • Beachten Sie alle Warn- und Vorsichtshinweise in diesem Handbuch. • Treffen Sie beim Betrieb, bei der Installation oder bei der Entfernung der Einheit angemessene Sicherheitsvorkehrungen. • 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 Entfernungsarbeiten beginnen.
6 Cheetah 18FC Installation Guide, Rev. A • Die HDA ist nicht vor Ort reparierbar und darf nicht auseinandergenommen werden! Öffnen der versiegelten HDA durch andere Personen als die für die werkseitige Reparatur zuständigen 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, CAN\CSA C22.2 950-95 und VDE0805 vorgesehen.
Cheetah 18FC Installation Guide, Rev. A 7 European Union Compliance 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.
8 Cheetah 18FC Installation Guide, Rev. A Seagate Technology support services Presales support To determine which Seagate products are best suited for your specific application, contact us about configuration and compatibility and for current product availability. You can leave a voice message after business hours or send an e-mail message—we reply during business hours. Disc Drives 405-936-1210 Fax: 405-936-1683 (8:00 A.M. to 12:15 P.M., 1:30 P.M. to 6:00 P.M.
Cheetah 18FC Installation Guide, Rev. A 9 asked questions, troubleshooting tips, and specifications for disc drives and tape drives. This service is available 24 hours daily and requires a touch-tone phone. International callers can reach this automated self-help service by dialing 405-936-1234. Online services Using a modem, you can obtain troubleshooting tips, free utility programs, drive specifications and jumper settings for Seagate’s entire product line.
10 Cheetah 18FC Installation Guide, Rev. A Location Phone number UK USA 44-1628-478011 Disc: 405-936-1600; Tape: 405-936-1630 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.
Cheetah 18FC Installation Guide, Rev. A Location Phone number UK USA 44-1628-890660 Disc: 405-936-1685; Tape: 405-936-1683 11 Direct-support services 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 (ST xxxx). Location Phone number Australia 61-2-9725-3366 (9:00 A.M. to 5:00 P.M., eastern time, 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.
12 Cheetah 18FC Installation Guide, Rev. A SeaTDD™ 405-936-1687 Using a telecommunications device for the deaf (TDD), you can send questions or comments 24 hours daily and exchange messages with a technical support specialist between 8:00 A.M. to 12:15 P.M. and 1:30 P.M. to 6:00 P.M. (central time) Monday through Friday. Customer service centers Seagate direct OEM, Distribution, and Systems Integrator customers should contact their Seagate service representative for warranty information.
Cheetah 18FC Installation Guide, Rev.
14 Cheetah 18FC Installation Guide, Rev. A General description Cheetah 18FC 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.
Cheetah 18FC Installation Guide, Rev. A Characteristics ST118202FC Interface Fibre Channel Capacity Unformatted (Gbytes) Formatted (Gbytes)1 22.54 18.2 Recording Cylinders (user) Read/write data heads Avg bytes/track 6,962 24 104,840 to 159,008 Access time Average read (msec) Average write (msec) 5.9 6.7 Disc rotation RPM Average latency (msec) 10,025 2.99 Data transfer rate Maximum instantaneous (Mbytes/sec per port) 1. 15 106.
16 Cheetah 18FC Installation Guide, Rev. A Installing the Cheetah 18FC drive To install a Cheetah 18FC 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.
Cheetah 18FC Installation Guide, Rev. A 17 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. Die Umgebungstemperatur darf maximal 50oC betragen (30oC für der MTBF).
18 Cheetah 18FC Installation Guide, Rev. A Above unit Note. Air flows in the direction shown (back to front) or in reverse direction (front to back) Under unit 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.
Cheetah 18FC Installation Guide, Rev. A 19 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. You may mount the drive in any orientation (horizontally, vertically, or any combination thereof); however, you must ensure that the drive receives adequate air flow for cooling. Mount the drive to the host system’s chassis using four 6-32 UNC screws.
20 Cheetah 18FC Installation Guide, Rev. A Unterseite des Laufwerkes weist vier weitere Befestigungslöcher auf. Siehe Abbiludung 3. Gemessen von der Außenfläche des Gehäuses dürfen die Schrauben maximal 3,81 mm in die Befestigungslöcher des Gehüuses hineinragen. Die Schrauben müssen gleichmäßig, jedoch nicht zu fest, angezogen werden. Wenn sich eine Schraube nicht ohne Widerstand einschrauben läßt, sind die Gewinde nicht korrekt aneinander ausgerichtet.
Cheetah 18FC Installation Guide, Rev. A 21 . K // T -Z- S [1] H -Z- L J B R Notes: [1] Mounting holes are 6-32 UNC 2B, three on each side and four on the bottom. Max screw penetration into side of drive is 0.15 in. (3.81 mm). Max screw tightening torque is 6.0 in-lb (3.32 nm) with minimum full thread engagement of 0.12 in. (3.05 mm).
22 Cheetah 18FC Installation Guide, Rev. A 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 18FC Installation Guide, Rev. A 23 Enabling and disabling the 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. Warning.
24 Cheetah 18FC Installation Guide, 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] [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 18FC Installation Guide, Rev.
26 Cheetah 18FC Installation Guide, Rev. A 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 35 Ground Signal type Diff. PECL input pair Diff. PECL output pair Diff. PECL output pair 36 SEL_2 TTL input/output 37 SEL_1 TTL input/output TTL input/output 38 SEL_0 39 Reserved NC 40 5 Volts charge *Short pins in mating backpanel connector.
Cheetah 18FC Installation Guide, Rev. A 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: 83329320, Rev.
