• • • • • • • • • • • • • • • • • • • • • • • • • • Barracuda 50 • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • Disc Drive • • • • • • • • • ST150176LW/LC • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • Installation Guide • • • • • • • • • • • • • • •
Contents Preface ..................................................................................... 1 Electrostatic discharge protection ............................................ 2 Important safety information and precautions .......................... 3 Wichtige Sicherheitshinweise ................................................... 5 Regulatory agency compliance ................................................ 8 General description ................................................................
Barracuda 50 Installation Guide, Rev. A 1 Preface This manual contains handling information, support services, performance specifications, and installation information for Seagate® Barracuda 50 SCSI disc drives. Although you can jump ahead to the installation instructions to get up and running quickly, you may want to read the “General description” section beginning on page 10 to learn more about this drive’s multimode capabilities, data bus details, specifications, and cooling requirements.
2 Barracuda 50 Installation Guide, Rev. A Handling precautions • Disc drives are fragile. Do not drop or jar the drive. Use a padded surface during installation to avoid damaging the drive. • Keep the drive in its antistatic bag until you are ready to install it. • Protect the drive from static discharge by making sure you are well grounded before touching the drive. We recommend wearing a grounded wrist strap (Seagate part number 12263496) throughout the installation process.
Barracuda 50 Installation Guide, Rev. A 3 as some resistors and capacitors, may be damaged or degraded by exposure to static electricity. Electrostatic damage to electronic devices may be caused by the direct discharge of a charged conductor or by exposure to the static fields surrounding charged objects.
4 Barracuda 50 Installation Guide, Rev. A lowed to minimize or eliminate the risk of personal injury. The warnings point out conditions or practices that may endanger you or others. The cautions point out conditions or practices that may damage the unit, possibly making it unsafe for use. Always observe the following warnings and precautions: • Follow all cautions and warnings in the procedures. • Use sound safety practices when operating, installing, or removing the unit.
Barracuda 50 Installation Guide, Rev. A 5 As a component, this drive is designed to be installed and operated in accordance with UL1950, EN60950, CAN/CSA C22.2 950-M95, and VDE0805. Seagate takes all reasonable steps to ensure that its products are certifiable to currently accepted standards. Typical applications of these disc drives include customer packaging and subsystem design.
6 Barracuda 50 Installation Guide, Rev. A sam, die Sie oder andere gefährden könnten. Die Vorsichtshinweise machen auf Situationen oder Praktiken aufmerksam, die Einheit beschädigen können, so daß deren Gebrauch mit Risiko behaftet ist. Die Warn- und Vorsichtshinweise sind nicht allumfassend! Es ist uns einfach nicht möglich, alle Wartungsmethoden oder die eventuellen Risiken jeder Methode zu kennen, zu beurteilen und Sie entsprechend zu beraten.
Barracuda 50 Installation Guide, Rev. A 7 chädigung der Komponenten und Erlöschen des Garantieanspruchs führen. • Die vormontierte Kopf- und Festplatteneinheit (HDA) nicht aus dem Laufwerkgehäuse nehmen! Falls die HDA beschädigt ist, schicken Sie das gesamte Laufwerk zur Reparatur ein.
8 Barracuda 50 Installation Guide, Rev. A 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.
Barracuda 50 Installation Guide, Rev. A 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 Barracuda 50 Installation Guide, Rev. A General description Barracuda 50 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. This multimode capability allows you to use this drive in systems that use the traditional SE technology or in LVD-capable systems. Figure 1. Barracuda 50 family drive (LW model shown) This drive should be mounted in an enclosure designed for the drive.
Barracuda 50 Installation Guide, Rev. A 11 Single-ended and low voltage differential modes This drive incorporates two different transceivers to allow you to use it in systems which use single-ended (SE) drivers and receivers, or in low voltage differential (LVD) capable systems which use LVD drivers and receivers. The primary benefits of LVD technology • • • • Faster transfer rates. Reduces power consumption. Increases allowable cable lengths. Improves device connectivity.
12 Barracuda 50 Installation Guide, Rev. A Data bus widths These drives have a wide (16-bit) SCSI data bus. You can use these drives on a non-wide (8-bit) data bus if you provide proper termination to the upper eight data lines. This is often referred to as providing “high-9 termination” (the other bit is for parity). The following table lists the maximum cable lengths and number of devices using single-ended and LVD I/O circuits. Table 1.
Barracuda 50 Installation Guide, Rev. A 13 by the fans either pushing or drawing air. The overall flow pattern can be directed from front to back, back to front, or side to side. Kühlung des Systems Die Gehäusekonstruktion muß eine ausreichende Kühlung des Laufwerkes gewährleisten. Die Umgebungstemperatur darf maximal 50°C betragen. Die Produkthandbuch Barracuda 50 (Dokument 83329471) enthalten Anweisungen zur Beurteilung der Luftstromkonstruktion.
14 Barracuda 50 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) Figure 2. Abbildung 2.
Barracuda 50 Installation Guide, Rev. A Characteristics ST150176LW/LC Interface Ultra2 SCSI1 Capacity Formatted (Gbytes)2 50.0 Recording Cylinders (user) Read/write data heads Avg bytes/track 12,024 22 189.28 Access time3 Average read (msec) Average write (msec) 7.6 8.4 Disc rotation RPM Average latency (msec) 7,184 4.
16 Barracuda 50 Installation Guide, Rev. A Single-ended (SE) mode Low voltage differential (LVD) mode DC power requirements (±5%) 1 +5 V +12 V +5 V +12 V ST150176LW/LC Maximum start current Maximum operating current Average idle current 2.6 1.17 0.68 0.77 0.81 0.69 2.6 1.17 0.68 1. 0.76 0.77 0.68 For more detailed power information, refer to the Barracuda 50 Product Manual, publication number 83329471.
Barracuda 50 Installation Guide, Rev. A 17 How to install the drive This installation guide provides step-by-step instructions to make your drive installation as easy as possible. Follow the installation steps listed for your drive model as listed below: ST150176LW (use the installation steps beginning below). ST150176LC (use the installation steps beginning on page 30). ST150176LW installation 1. Set the SCSI ID on the drive.
18 Barracuda 50 Installation Guide, Rev. A Drive Front Jumper Plug (enlarged to show detail) Pin 1 J6 [1] Reserved SCSI ID = 0 L R E E D S A3 A2 A1A0 (default) SCSI ID = 1 SCSI ID = 2 SCSI ID = 3 SCSI ID = 4 SCSI ID = 5 SCSI ID = 6 [4] 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 Figure 3.
Barracuda 50 Installation Guide, Rev. A 2. 19 Configure termination. If you are installing the drive in a system that has other SCSI devices installed, terminate only the end devices on the SCSI bus. Figure 4 shows the three most common termination configurations. ST150176LW drives do not have internal terminators or any other way of adding internal termination on the drive. You must provide external termination to these drives when termination is required.
20 Barracuda 50 Installation Guide, Rev. A Internal SCSI cable Internal SCSI drive Controller Terminate Internal SCSI cable Internal SCSI device Internal SCSI device Controller Terminate Internal SCSI cable Internal SCSI device Internal SCSI device Controller External SCSI cable Terminate Figure 4.
Barracuda 50 Installation Guide, Rev. A 3. 21 Configure termination power. Terminators have to get power from some source. The default configuration results in the drive not suppling termination power to the bus. You should normally leave this drive set at this default unless your host system requires that the drive supply termination power to the bus. To configure this drive to supply termination power to the bus, place a jumper on J2 pins 1 and 2 as shown in the figure below.
22 Barracuda 50 Installation Guide, Rev. A 4. Connect the drive activity remote LED (optional) This drive provides connections for a remote drive activity LED. This step is optional because the drive will work fine without an LED connected, but many people find this to be helpful to determine when the drive is actively reading or writing data. Most host systems provide this LED which is a small “bulb” (actually a light-emitting diode) located on the host’s front panel.
Barracuda 50 Installation Guide, Rev. A 5. 23 Check the other available jumper settings (optional) This drive provides several features for unique configurations. You will not normally need to change from the default settings for normal operation. See Figure 7 on page 24. Single-ended mode option You can force the drive to operate only in SE mode by installing a jumper on J2 pins 15 and 16. The default is to allow the drive to automatically detect and use SE or LVD mode.
24 Barracuda 50 Installation Guide, Rev. A Pin 1 J2 Pin 2 RR S D MW P E E T E S EP DSS P Reserved Single-Ended Mode option Use single-ended or low voltage differential mode. Force the drive to operate only in single-ended mode. Delay Motor Start option (valid only if the Enable Motor Start jumper is not connected) Disable the Delay Motor Start option (default). Motor start delay equal to the SCSI ID multiplied by 12 seconds. For example, if the SCSI ID = 2, the drive starts in 24 seconds.
Barracuda 50 Installation Guide, Rev. A 6. Mount the drive in the host system and connect cabling. a. 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. Do not over-tighten or force the screw if it does not seem to screw in easily. The dimensions of the drive are provided in Figure 10. b.
26 Barracuda 50 Installation Guide, Rev. A Power Cable Figure 8.
Barracuda 50 Installation Guide, Rev. A 27 “LW” Model Drive Terminator [7] [6] 2 through X SCSI devices [4] Pin 1 (check your adapter for Pin 1 location) SCSI ID 1 SCSI ID 7 [5] [2] [1] Host Adapter PCB SCSI ID 0 [3] [2] [1] “X” means up to 15 devices on the SCSI bus. [2] External terminator. Used only on end “LW” drive. Use only SPI-2compliant active LVD terminators on SCSI Ultra2 buses. Figure 9.
28 Barracuda 50 Installation Guide, Rev. A 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). A -ZM U -X- P G A B C D E F G H J K L M Dimension Table Inches Millimeters 42.01 max 1.654 max 147.00 max 5.787 max 101.60 ± .25 4.000 ± .010 92.25 ± .25 3.750 ± .010 3.
Barracuda 50 Installation Guide, Rev. A 29 Additional connector on ST150176LW drives ST150176LW drives have a connector located between the SCSI I/O connector and the DC power connector to allow you to set the SCSI ID and connect LEDs from the back of the drive. You are not required to use this connector, but it’s available if you want to use it. Refer to Figure 11 for pin assignments.
30 Barracuda 50 Installation Guide, Rev. A ST150176LC installation 1. Set the SCSI ID on the drive. Determine which SCSI IDs are already being used in the system and then assign the disc drive a SCSI ID that isn’t already being used. Use the J6 connector located on the front of the drive to set the SCSI ID (see Figure 12). • This drive is SCAM (SCSI Configured Auto Matically) compliant.
Barracuda 50 Installation Guide, Rev. A 31 Drive Front Jumper Plug (enlarged to show detail) Pin 1 J6 [1] 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 Figure 12.
32 Barracuda 50 Installation Guide, Rev. A 2. Configure termination. ST150176LC drives are designed for installation in host systems that have a backplane with single connector attachment (SCA) connections. Termination is normally provided on this backplane. Check your host system documentation for details. • You can use this drive in host systems that do not have a backplane with SCA connectors by using a SCA to wide SCSI-2 adapter. These adapters separate the interface lines from the power lines.
Barracuda 50 Installation Guide, Rev. A 3. 33 Check the other available jumper settings (optional) This drive provides several features for unique configurations. You will not normally need to change from the default settings for normal operation. See Figure 13 on page 34. Single-ended mode option You can force the drive to operate only in SE mode by installing a jumper on J2 pins 15 and 16. The default is to allow the drive to automatically detect and use SE or LVD mode.
34 Barracuda 50 Installation Guide, Rev. A Pin 1 J2 Pin 2 RR S D MW P E E T E S EP DSS P Reserved Single-Ended Mode option Use single-ended or low voltage differential mode. Force the drive to operate only in single-ended mode. Delay Motor Start option (valid only if the Enable Motor Start jumper is not connected) Disable the Delay Motor Start option (default). Motor start delay equal to the SCSI ID multiplied by 12 seconds. For example, if the SCSI ID = 2, the drive starts in 24 seconds.
Barracuda 50 Installation Guide, Rev. A 4. 35 Mount the drive in the host system. To mount an “LC” drive, plug the drive into the system’s single connector attachment (SCA) position on the system’s backplane. The SCA connector on the drive contains interface and power functions, so it does not require a separate power connector. The dimensions of the drive are provided in Figure 15. Some host systems require that you first mount the drive to a sliding tray or courier before inserting it into the system.
36 Barracuda 50 Installation Guide, Rev. A K // T -Z- S [1] H -Z- L J B R Notes: N -Z- -X[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). A -ZM U -X- P G A B C D E F G H J K L M N P R S T U [1] F E Dimension Table Inches Millimeters 42.01 max 1.654 max 147.00 max 5.787 max 101.60 ± .25 4.000 ± .
Barracuda 50 Installation Guide, Rev. A 5. 37 Format the drive. Caution. Formatting a drive erases all user data. Be sure that you understand this principle before formatting any hard disc drive. It is not necessary to format a drive that previously has been used to store data unless your intention is to erase all user data. Seagate is not responsible for lost user data. Important information about formatting the drive • The drive has been low level formatted at the factory.
38 Barracuda 50 Installation Guide, Rev. A Note. Hardware platform, operating system, and host adapter variations can limit access to the full capacity of this and other high capacity drives. Refer to your system, host adapter, or drive utility documentation for detailed instructions. DOS, Windows 3.1, Windows 95, and Windows 98 System preparation a. b. Turn your computer on.
Barracuda 50 Installation Guide, Rev. A d. e. f. g. 39 the drive you want to partition. Make sure that your new drive is selected. If you accidently repartition your old hard drive, you will arase all data on the drive. Press 1 to select “Create DOS partition or logical DOS drive” and then press the ENTER key. Press 1 again to select “Create primary DOS partition” and then press the ENTER key. Create your first drive partition.
40 Barracuda 50 Installation Guide, Rev. A Macintosh Use a third-party drive utility to initialize the drive and follow the instructions provided with the utility. Note: versions of Apple Drive Setup prior to version 1.3.1 do not recognize non-Apple drives.
Barracuda 50 Installation Guide, Rev. A 41 Seagate Technology support services Online Services Internet For o n l i n e i n fo r m a t i o n ab o u t S e a ga t e p ro d u c t s, v i s i t www.seagate.com or e-mail your disc or tape questions to: Presales Support: Disc: http://www.seagate.com/support/email/ email_presales.shtml or DiscPresales@Seagate.com Tape: http://www.seagate.com/support/email/ email_tape_presales.shtml or Tape_Sales_Support@Seagate.com Technical Support: Disc: http://www.seagate.
42 Barracuda 50 Installation Guide, Rev. A phone numbers, commonly asked questions, troubleshooting tips and specifications for disc drives and tape drives 24 hours daily. International callers can reach this service by dialing +1405-936-1234. SeaFAX ® is Seagate's automated FAX delivery system. Using a touch-tone phone, you can obtain technical support information by return FAX 24 hours daily. This service is available worldwide.
Barracuda 50 Installation Guide, Rev. A 43 specialist from 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 (CSO) Warranty Repair Seagate offers worldwide customer support for Seagate drives. Seagate direct OEM, Distribution and System Integrator customers should contact their Seagate service center representative for warranty information. Other customers should contact their place of purchase.
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Seagate Technology, Inc. 920 Disc Drive, Scotts Valley, CA 95066-4544, USA Publication Number: 83329472, Rev.
