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Cheetah 18
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Disc Drive
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ST118202LW/LC
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Installation Guide
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Contents Preface ..................................................................................... 1 Electrostatic discharge protection ............................................ 1 Important safety information and precautions .......................... 2 Wichtige Sicherheitshinweise................................................... 4 Regulatory agency compliance ................................................ 7 Seagate Technology support services...................................... 9 G
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Cheetah 18 Installation Guide, Rev. A 1 Preface This manual contains information for users of the Seagate® Cheetah 18 SCSI disc drives. It provides support services, per- formance specifications, and initial setup information. Additional information is available in the Cheetah 18 Product Manual (part number 83329260). Contact your Seagate sales representative if you need to order this publication. Electrostatic discharge protection Caution. Removal of circuit boards by personnel not perform- ing
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2 Cheetah 18 Installation Guide, Rev. A • Turn off the power before removing or installing the DC power cable. • 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 car- rier 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. Use proper saf
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Cheetah 18 Installation Guide, Rev. A 3 stacked vertically, pay special attention to the top where tem- peratures are usually highest. • Follow the precautions listed above in “Electrostatic discharge protection.” • Do not remove any circuit boards from the drive. 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 separate the head and disc assemb
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4 Cheetah 18 Installation Guide, Rev. A This unit is a component part and as such is not meant to com- ply 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. Verwenden Sie
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Cheetah 18 Installation Guide, Rev. A 5 Beachten Sie in jedem Fall die folgenden Warn-und Vorsicht- shinweise: • Beachten Sie alle Warn- und Vorsichtshinweise in diesem Handbuch. • 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 Entfernungsar- beiten beginnen
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6 Cheetah 18 Installation Guide, Rev. A • Die vormontierte Kopf- und Festplatteneinheit (HDA) nicht aus dem Laufwerkgehäuse nehmen! Falls die HDA beschädigt ist, schicken Sie das gesamte Laufwerk zur Reparatur ein. • Die HDA ist nicht vor Ort reparierbar und darf nicht auseinan- dergenommen werden! Öffnen der versiegelten HDA durch andere Personen als die für die werkseitige Reparatur zustän- digen hat eine Beschädigung der Komponenten und Erlöschen des Garantieanspruchs zur Folge. Als Teilkomp
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Cheetah 18 Installation Guide, Rev. A 7 magnetische Strahlung sind für Designer von Untersystemen auf Anfrage von der Seagate-Sicherheitsabteilung erhältlich. 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 sa
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8 Cheetah 18 Installation Guide, Rev. A shall confirm EMC compliance and provide CE Marking and C- Tick Marking for their product. 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 wi
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Cheetah 18 Installation Guide, Rev. A 9 Seagate Technology support services Presales support To determine which Seagate products are best suited for your specific application, contact us about configuration and compati- bility 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., central time, M-F) e-mail: DiscPr
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10 Cheetah 18 Installation Guide, Rev. A 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. You can also download software for in
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Cheetah 18 Installation Guide, Rev. A 11 Location Phone number Australia 61-2-9756-2359 France 33 1-48 25 35 95 Germany 49-89-140-9331 Taiwan 886-2-2719-6075 Thailand 662-531-8111 UK 44-1628-478011 USA Disc: 405-936-1600; Tape: 405-936-1630 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 Germany 49-89-1
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12 Cheetah 18 Installation Guide, Rev. A Location Phone number Germany 49-89-1430-5100 Hong Kong 852-2368 7173 Japan 81-3-5462-2979 Korea 82-2-556-4251/7395 Singapore 65-488-7528 Taiwan 886-2-2715-2923 UK 44-1628-890660 USA Disc: 405-936-1685; Tape: 405-936-1683 Direct-support services 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 n
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Cheetah 18 Installation Guide, Rev. A 13 Location Phone number UK 44-1628-894083 (10:00 A.M. to 1:00 P.M., 2:00 P.M. to 5:00 P.M., M–F) USA Please dial 1-800-SEAGATE or 405-936-1234 for the specific product telephone number. (8:00 A.M. to 12:15 P.M., 1:30 P.M. to 6:00 P.M., central time, M–F) SeaTDD™ 405-936-1687 Using a telecommunications device for the deaf (TDD), you can send questions or comments 24 hours daily and exchange mes- sages with a technical support specialist between 8:00 A.M.
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14 Cheetah 18 Installation Guide, Rev. A Location Phone number FAX number Manufacturer’s representatives Brazil MA Informatica 55-21-516-6649 55-21-516-5280 Canada Memofix 905-660-4936 905-660-8738 Adtech 905-812-8099 905-812-7807 1-800-624-9857 Mexico Abicom Seamax SA DE CV 525-546-4888 525-546-4888 Southern Europe Caesar Italia 39-688-18149 39-688-02103
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Cheetah 18 Installation Guide, Rev. A 15 General description Cheetah 18 SCSI disc drives are high-speed, random-access digital-data storage devices capable of operating in single-ended (SE) or low voltage differential (LVD) modes. These two modes are offered to allow you to use this drive in systems that use the traditional SE technology or to use it in LVD-capable systems. Refer to page 20 for additional informa- tion about LVD technology. The drive is a component for installation in an enclosu
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16 Cheetah 18 Installation Guide, Rev. A Figure 1. Cheetah 18 family drive (ST118202LW shown)
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Cheetah 18 Installation Guide, Rev. A 17 Characteristics ST118202LW/LC 1 Interface Ultra2 SCSI Capacity Unformatted (Gbytes) 22.54 2 Formatted (Gbytes) 18.21 Recording Cylinders (user) 6,962 Read/write data heads 24 Avg bytes/track 104,840-159,008 3 Access time Average read (msec) 5.9 Average write (msec) 6.7 Disc rotation RPM 10,025 Average latency (msec) 2.99 Synchronous data transfer rate Maximum instantaneous (Mbytes/sec) 40 (SE mode) 80 (LVD mode) Asynchronous data transfer rate Maximum i
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18 Cheetah 18 Installation Guide, Rev. A ST118202LW/LC Low voltage Single-ended (SE) differential (LVD) mode mode 1 +5 V+12 V +5 V+12 V DC power requirements (±5%) Maximum start current 0.89A 2.5A 0.90A 2.5A Maximum operating current 0.88A 1.22A 0.95A 1.22A Average idle current 0.72A 0.98A 0.74A 0.98A 1. For more detailed power information, refer to the Cheetah 18 Product Manual, publication number 83329260.
