Page 2 - Contents
Contents Preface ..................................................................................... 1Electrostatic discharge protection ............................................ 1Important safety information and precautions .......................... 2Wichtige Sicherheitshinweise ................
Page 3 - Preface; Cheetah 9LP Product Manual; Electrostatic discharge protection; Caution. Removal of circuit boards by personnel not perform-; • Ground yourself to the drive whenever the drive electronics
Cheetah 9LP Installation Guide, Rev. B 1 Preface This manual contains information for users of the Seagate®Cheetah 9LP SCSI disc drives. It provides support services, per-formance specifications, and initial setup information. Additionalinformation is available in the Cheetah 9LP Product Manual (par...
Page 4 - Important safety information and precautions
2 Cheetah 9LP Installation Guide, Rev. B • 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...
Page 6 - Wichtige Sicherheitshinweise
4 Cheetah 9LP Installation Guide, Rev. B This unit is a component part and as such is not meant to com-ply with FCC or similar national requirements as a stand-aloneunit. Engineering radiated emissions test results are availablethrough the Seagate Safety Department to assist the subsystemdesigner. W...
Page 9 - Regulatory agency compliance; • 486, Pentium, and PowerPC microprocessors
Cheetah 9LP Installation Guide, Rev. B 7 magnetische Strahlung sind für Designer von Untersystemen aufAnfrage von der Seagate-Sicherheitsabteilung erhältlich. Regulatory agency compliance Electromagnetic susceptibilityAs a component assembly, the drive is not required to meet anysusceptibility perfo...
Page 11 - Seagate Technology support services; Presales support; Disc Drives; Note. You can purchase select tape products and tape acces-; Technical support services; drive or other
Cheetah 9LP Installation Guide, Rev. B 9 Seagate Technology support services Presales support To determine which Seagate products are best suited for yourspecific application, contact us about configuration and compati-bility and for current product availability. You can leave a voicemessage after b...
Page 12 - Online services; SeaNET; Location; Australia
10 Cheetah 9LP Installation Guide, Rev. B asked questions, troubleshooting tips, and specifications for discdrives and tape drives. This service is available 24 hours dailyand requires a touch-tone phone. International callers can reachthis automated self-help service by dialing 405-936-1234. Online...
Page 13 - FAX services; SeaFAX®
Cheetah 9LP Installation Guide, Rev. B 11 FAX services SeaFAX® You can use a touch-tone telephone to access Seagate’s auto-mated FAX system to receive technical suppor t information byreturn FAX. This service is available 24 hours daily. Technical support FAX You can FAX questions or comments to tec...
Page 14 - Direct-support services; Technical support; xxxx
12 Cheetah 9LP Installation Guide, Rev. B 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 systemconfiguration and drive model number (ST xxxx ). UK 44-1628-890660 USA Disc: 405-936-1...
Page 15 - Customer service centers; Manufacturer’s representatives
Cheetah 9LP Installation Guide, Rev. B 13 SeaTDD™ 405-936-1687 Using a telecommunications device for the deaf (TDD), you cansend questions or comments 24 hours daily and exchange mes-sages 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 . (cen...
Page 17 - General description; C h e e t a h 9 L P P r o d u c t M a n u a l; ( p a r t n u m b e r; Attention. This high performance Cheetah disc drive must have; proper power and cooling for reliable operation.
Cheetah 9LP Installation Guide, Rev. B 15 General description Cheetah 9LP SCSI disc drives are high-speed, random-accessdigital-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 insystems ...
Page 19 - Characteristics
Cheetah 9LP Installation Guide, Rev. B 17 Characteristics ST39102LW/LC ST34502LW/LC Interface Ultra2 SCSI 1 Ultra2 SCSI 1 Capacity Unformatted (Gbytes)Formatted (Gbytes) 2 11.279.17 5.634.55 Recording Cylinders (user)Read/write data headsAvg bytes/track 6,96212104,840-159,008 6,9626104,840-159,008 A...
Page 21 - Initial setup information; Drive models; The following general information topics are discussed:
Cheetah 9LP Installation Guide, Rev. B 19 Initial setup information The general information beginning on this page applies to all ofthe Cheetah 9LP drive models. After reading the general infor-mation topics, refer to the appropriate drive-specific sectionlisted below for additional information abou...
Page 22 - Single-ended and low voltage differential modes; Note. To operate at the Ultra2 SCSI rates in LVD mode, all; SCSI ID jumpers
20 Cheetah 9LP Installation Guide, Rev. B Single-ended and low voltage differential modes This drive incorporates two different transceivers to allow you touse it in traditional systems which may use single-ended (SE)drivers and receivers, or to use it in low voltage differential (LVD)capable system...
Page 23 - Note. Most SCSI controllers (host adapters) allow you to skip a
Cheetah 9LP Installation Guide, Rev. B 21 SCSI IDs are normally used for other SCSI devices such as thisCheetah disc drive. Note. Most SCSI controllers (host adapters) allow you to skip a SCSI ID. For example, you can have ID0, ID1, and ID3(skipping ID2). Other controllers do not allow this so besur...
Page 24 - Drive termination; Note. Some controllers prefer to remain terminated even if they
22 Cheetah 9LP Installation Guide, Rev. B Drive termination If you are installing a Cheetah drive in a system that has otherSCSI devices installed, terminate only the end devices on theSCSI chain. A SCSI “device” is any disc drive, scanner, tapebackup unit, or other piece of hardware connected to yo...
Page 25 - SCSI bus termination; Terminator power; • These drives can be used in single-ended or low voltage differ-
Cheetah 9LP Installation Guide, Rev. B 23 plished by terminating the bus at the backpanel. For ST39102LWand ST34502LW drives, use an in-line terminator on the cable. Figure 2. SCSI bus termination Terminator power You usually will not need to change this option and can normallyleave the drive config...
Page 26 - Cable characteristics for SE and LVD circuits; LVD
24 Cheetah 9LP Installation Guide, Rev. B use these wide drives on a standard (non-wide) 8-bit data busif you provide proper termination to the upper 8-bit data lines.This is often referred to as providing “high-9 termination.” Figures 3, 4, and 5 show typical drive connections. The following table ...
Page 28 - Multiple-drive connection to host adapter
26 Cheetah 9LP Installation Guide, Rev. B [1] “X” means up to 15 or the maximum allowable number of devices on the SCSI bus. See system documentation and Table 1. [2] External ter minator. Used only on end “LW” drive. Use only SPI-2- compliant active LVD terminators on SCSI Ultra2 buses. Figure 5. M...
Page 29 - Note. This drive model plugs directly into a backplane connec-; tor and therefore uses no cables.; Connector
Cheetah 9LP Installation Guide, Rev. B 27 Note. This drive model plugs directly into a backplane connec- tor and therefore uses no cables. Figure 6. Drive model “LC” with single 80-pin I/O andpower connector J6 J2 80-pin SCSI I/O Connector Pin 1
Page 30 - Providing adequate cooling
28 Cheetah 9LP Installation Guide, Rev. B Providing adequate cooling The enclosure design must ensure adequate cooling for thedrive. The maximum ambient temperature allowed is 50 ° C. The drive’s product manual (83329240) describes how to evalu-ate the air-flow design. The evaluation consists of ens...
Page 31 - Kühlung des Systems
Cheetah 9LP Installation Guide, Rev. B 29 Kühlung des Systems Die Gehäusekonstruktion muß eine ausreichende Kühlung desLaufwerkes gewährleisten. Die Umgebungstemperatur darf max-imal 50 ° C betragen. Di e P rod uk tha ndbu ch C h ee tah 9L P (D o kum en t 83 32 92 40)enthalten Anweisungen zur Beur t...
Page 33 - Mounting the drive and connecting cables
Cheetah 9LP Installation Guide, Rev. B 31 Mounting the drive and connecting cables Do not touch the connector pins or any components on the con-trol board without observing static-discharge precautions.Always handle the drive by the frame only. The drive may be mounted in any orientation (horizontal...
Page 35 - Pin
Cheetah 9LP Installation Guide, Rev. B 33 defined in IEC 950. Figure 8 provides the pin information forthe DC power connector. To connect the DC power cable tothe drive, simply insert the cable end into the drive’s DCpower connector. 4. Schließen Sie das SCSI-Kabel an den SCSI-Steckverbinderdes La u...
Page 37 - Replace the host system’s cover.
Cheetah 9LP Installation Guide, Rev. B 35 elektromagnetische Strahlung fällt in den Zuständigkeits-bereich des Systemdesigners. 5. Replace the host system’s cover. 5. Setzen Sie das Gehäuseober teil des Host-Systems wiederauf.
Page 38 - Mounting configuration dimensions (LW model)
36 Cheetah 9LP Installation Guide, Rev. B Figure 9. Mounting configuration dimensions (LW model) J H L B A S K [1] R F [1] D E C G P M -X- -X- U -Z- T // -Z- -Z- 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)....
Page 40 - Formatting the drive; Caution. Formatting a drive erases all user data. Be sure that; • Hardware platform, operating system, and host adapter varia-
38 Cheetah 9LP Installation Guide, Rev. B Formatting the drive The drive has been low level formatted at the factory. You do notneed to perform another low level format on this drive unless youdecide to perform certain diagnostics through the host adapter. If you do decide to perform a low level for...
Page 41 - or “; No hard drive installed; • Macintosh. Use a third-party drive utility or Apple’s Drive Setup
Cheetah 9LP Installation Guide, Rev. B 39 capacity drives. Refer to your system or utility manual fordetailed instructions. • DOS/Windows 3.1/Windows 95. Set the drive type in CMOS to “ Zero,” “None,” or “ No hard drive installed .” Use FDISK.EXE and FORMAT.EXE. • Macintosh. Use a third-party drive ...
Page 42 - Figure 11. Setting the SCSI ID on LW drives
40 Cheetah 9LP Installation Guide, Rev. B LW drives LW drives section Setting the SCSI ID jumpers Use the J6 connector to set the SCSI ID (see Figure 11). Tochange the SCSI ID, install jumpers as shown in the illustration. Figure 11. Setting the SCSI ID on LW drives SCSI ID = 0 Jumper Plug (enlarged...
Page 44 - Figure 12. Setting terminator power jumpers
42 Cheetah 9LP Installation Guide, Rev. B LW drives Terminator power You can configure this drive to supply termination power to theSCSI bus by placing a jumper on J2 pins 1 and 2. The defaultsetting is no jumper, meaning that some other source (other thanthis drive) is suppling termination power to...
Page 45 - Several other jumper options are available as illustrated.; Figure 13. Additional jumper options
Cheetah 9LP Installation Guide, Rev. B 43 LW drives Other applicable jumper options Several other jumper options are available as illustrated. Figure 13. Additional jumper options SE DS M E W P PD RES RES TP J2 Pin 1 Pin 2 Enable parity check of SCSI bus (default). Disable parity check. Reserved Par...
Page 46 - LW drives; Figure 14. Alternate ID select and LED connection
44 Cheetah 9LP Installation Guide, Rev. B LW drives Figure 14. Alternate ID select and LED connection SCSI ID = 0 SCSI ID = 1 SCSI ID = 2 SCSI ID = 3 SCSI ID = 4 SCSI ID = 5 SCSI ID = 6 SCSI ID = 7 SCSI ID = 8 SCSI ID = 9 SCSI ID = 10 SCSI ID = 11 SCSI ID = 12 SCSI ID = 13 SCSI ID = 14 SCSI ID = 15 ...
Page 47 - The drive Active LED indicator connections are shown below.; Figure 15. Drive Active LED indicator connections
Cheetah 9LP Installation Guide, Rev. B 45 LW drives Drive Active indicator The drive Active LED indicator connections are shown below. Figure 15. Drive Active LED indicator connections Jumper Plug (enlarged toshow detail) DriveFront J6 Reserved Activity LED ReservedThe shaded pins are shipped with a...
Page 48 - Figure 16. Setting the SCSI ID on LC drives
46 Cheetah 9LP Installation Guide, Rev. B LC drives LC drives section Setting the SCSI ID jumpers The SCSI ID is normally set over the SCSI bus by the host sys-tem. You can also use the J6 jumper block to set the SCSI ID(Figure 16). To change the SCSI ID, install jumpers as shown inthe illustration....
Page 50 - Other option jumpers are available as illustrated below.; Figure 17. Additional jumper options
48 Cheetah 9LP Installation Guide, Rev. B LC drives Other applicable jumper options Other option jumpers are available as illustrated below. Figure 17. Additional jumper options SE DS M E W P PD RES RES RES J2 Pin 1 Pin 2 Enable parity check of SCSI bus (default). Disable parity check. Reserved Pari...
Page 51 - Figure 18. Drive Active LED indicator connections
Cheetah 9LP Installation Guide, Rev. B 49 LC drives WC/DC drives section Drive Active indicator The drive Active LED indicator connections are shown below. Figure 18. Drive Active LED indicator connections Jumper Plug (enlarged toshow detail) DriveFront J6 Reserved Activity LED ReservedThe shaded pi...
