• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • Elite 23 • • • • • • • Disc Drive • • • • • • • • • ST423451N/W/WD • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • Installation Guide • • • • • • • • • • • • • • •
Contents Preface ........................................................................................ 1 Electrostatic discharge protection ................................................ 1 Important safety information and precautions.............................. 2 Wichtige Sicherheitshinweise ...................................................... 4 European Union Compliance ....................................................... 6 Technical support services ............................................
Elite 23 Installation Guide, Rev. A 1 Preface This manual contains information for users of the Seagate® ST423451 Elite 23 SCSI disc drives. It provides support services, performance specifications, and initial setup information. Additional information is available in the Elite 23 Product Manual (part number 83329140). Contact your Seagate sales representative if you need to order this publication. Electrostatic discharge protection Caution.
2 Elite 23 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 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.
Elite 23 Installation Guide, Rev. A 3 • 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. • Return the entire drive for depot repair if the HDA is defective. • Do not attempt to disassemble the HDA. It is not field repairable.
4 Elite 23 Installation Guide, Rev. A 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 geeignete Sicherheits- um den sicheren, zuverlässigen Betrieb dieser Einheit zu gewährleisten. Die Verfahren in diesem Handbuch und die Aufkleber auf dem Gerät enthalten Warn- und Vorsichtshinweise.
Elite 23 Installation Guide, Rev. A 5 • 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 Elite 23 Installation Guide, Rev. A digen hat eine Beschädigung der Komponenten Erlöschen des Garantieanspruchs zur Folge. und Als Teilkomponente ist dieses Laufwerk für die Installation und den Betrieb in Übereinstimmung mit UL 1950, EN60950, CSA C22.2 950-M89 und VDE0805 vorgesehen. Seagate ist ständig bemüht, die Zulassungsfähigkeit von Seagate-Produkten im Rahmen der gegenwärtig geltenden Standards zu gewährleisten.
Elite 23 Installation Guide, Rev. A 7 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. Seagate uses an independent laboratory to confirm compliance to the above directives. The drive was tested in a representative system for typical applications. The selected system represents the most popular characteristics for test platforms. The system configurations include: • • • • 486, Pentium, and PowerPC Microprocessors 3.
8 Elite 23 Installation Guide, Rev. A 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.
Elite 23 Installation Guide, Rev. A 9 SeaBOARD SeaBOARD is a computer bulletin board system that contains information about Seagate Technology disc and tape drive products and is available 24 hours daily. Set your communications software to eight data bits, no parity, and one stop bit (8-N-1). SeaBOARD phone numbers are listed in the following table.
10 Elite 23 Installation Guide, Rev. A Seagate Technology 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 Telephone number United States 1-800-SEAGATE or 408-456-4496 England 44-1628-894084 Australia 61-2-9756-5170 Seagate technical support FAX You can FAX questions or comments to technical support specialists 24 hours daily.
Elite 23 Installation Guide, Rev. A 11 Seagate technical support line You can talk to a technical support specialist during business hours Monday through Friday for one-on-one technical help. Before calling, note your system configuration and drive model number (STxxxx). There are several technical support phone numbers available for various Seagate products. Location Telephone number United States Please dial 1-800-SEAGATE for the specific product telephone number. (6:00 A.M.–5:00 P.M.
12 Elite 23 Installation Guide, Rev. A General description Elite 23 SCSI disc drives are high-speed, random-access digitaldata storage devices. The drive is a component for installation in an enclosure designed for the drive. This is often a rack within the system or an external enclosure designed to house one or more disc drives or other peripheral units.
Elite 23 Installation Guide, Rev. A 13 Table 1: Drive characteristics Interface UltraSCSI1 Capacity Unformatted 29.6 Gbytes Formatted2 23.4 Gbytes Recording Cylinders (user) 6,880 Read/write data heads 28 Servo heads Embedded Seek time (typical)3 Average read 13.2 msec Average write 14.2 msec Disc rotation r/min 5,400 +0.5% Average latency 5.55 msec Internal transfer rate 85.9 to 123 (Mbits/sec, variable with zone) Max sync.
14 Table 2: Elite 23 Installation Guide, Rev. A DC power requirements Voltage regulation5 Maximum starting current Peak DC 3, 6, 9 Delayed motor start (max)1, 4 Peak operating current Typical DC 1 Maximum (peak)7 Single-ended Differential +5V8,10 +12V8 +5V8,10 +12V8 ± 5% ± 5%2 ± 5% ± 5%2 Amps 1.0 4.8 1.05 4.8 .85 .1 .85 .1 .98 1.1 1.6 2.8 1.2 1.95 1.6 2.8 1 Measured with an average reading DC ammeter. Instantaneous +12V current peaks will exceed these values.
Elite 23 Installation Guide, Rev. A 15 6 At power-up, the motor current regulator limits the +12V current to an average value of less than 4.8A, although instantaneous peaks may exceed this value. These peaks should measure 5 msec duration or less. 7 Minimum current loading for each supply voltage is not less than 4% of the maximum operating current shown. 8 Use separate ground returns for +5V and +12V supplies.
16 Elite 23 Installation Guide, Rev. A Initial setup information The general information beginning on this page applies to all of the Elite 23 drive models. After reading the general information topics, refer to the appropriate drive-specific section listed below for additional information about configuring and installing your particular model.
Elite 23 Installation Guide, Rev. A 17 SCSI ID jumpers Each device on the SCSI chain must have a unique SCSI ID. The host system’s SCSI controller usually uses the ID that has the highest priority interrupt in the SCSI I/O system. This is always ID7. ID0 is lowest priority in an 8-bit I/O system. ID8 is lowest priority in a 16-bit I/O system. The lower priority SCSI IDs are normally used for other SCSI devices such as this Elite disc drive. Note.
18 Elite 23 Installation Guide, Rev. A the case, change the ID so that each device on the SCSI chain has its own unique ID. Also check your system or controller user’s manual to ensure that you have not violated its SCSI ID numbering recommendations. Drive termination If you are installing a Elite 23 drive in a system that has other SCSI devices installed, terminate only the end devices on the SCSI chain.
Elite 23 Installation Guide, Rev. A 19 For information about how to terminate your drive, refer to the appropriate drive-specific section. Internal SCSI cable Internal SCSI device Internal SCSI device Controller Terminate Internal SCSI cable Internal SCSI device Internal SCSI device Controller External SCSI cable External SCSI device External SCSI device Terminate Figure 2.
20 Elite 23 Installation Guide, Rev. A Figures 3a, 3b, 3c, and 3d show typical drive connections. The following table lists the maximum cable lengths and number of devices with single-ended I/O circuits allowed on a daisy-chain cable for 5 and 20 Mbytes/sec I/O data transfer rates. Table 4: Cable characteristics for single-ended circuits I/O transfer rate Maximum number of devices on line Maximum cable length allowed 5 Mbytes/s 8 (reg. SCSI bus) 6 meters (19.7 ft.
Elite 23 Installation Guide, Rev. A Figure 3a. Fifty-pin I/O connection to drive Figure 3b.
22 Elite 23 Installation Guide, Rev. A “N” Model Drive *SCSI ID X (or last drive) SCSI ID 1 Additional SCSI devices *“X” means up to ID6 or the maximum allowable number of devices on the SCSI bus. See Table 1. Pin 1 (check your adapter for Pin 1 location) SCSI ID 7 Host Adapter PCB SCSI ID 0 Figure 3c.
Elite 23 Installation Guide, Rev. A 23 “W” Model Drive *SCSI ID X (or last drive) SCSI ID 1 “WD” Model Drive Note: Do not mix “W” and “WD” model drives on the daisy chain. Additional SCSI devices Terminator Module *“X” means up to ID15 or the maximum allowable number of devices on the SCSI bus. See Table 1. Pin 1 (check your adapter for Pin 1 location) SCSI ID 7 Host Adapter PCB SCSI ID 0 Figure 3d.
24 Elite 23 Installation Guide, Rev. A Providing adequate cooling The enclosure design must ensure adequate cooling for the drive. The maximum ambient temperature is 50°C. The drive’s product manual (83329140) describes how to evaluate the air-flow design. The evaluation consists of ensuring that the case temperature of certain critical components remains within acceptable limits during drive operation.
Elite 23 Installation Guide, Rev. A 25 Kühlung des Systems Die Gehäusekonstruktion muß eine ausreichende Kühlung des Laufwerkes gewährleisten. Die Umgebungstemperatur darf maximal 50°C betragen. Die Produkthandbuch Elite 23 (Dokument 83329140) enthalten Anweisungen zur Beurteilung der Luftstromkonstruktion. Die Beurteilung muß sicherstellen, daß sich die Gehäusetemperatur bestimmter kritischer Komponenten bei Laufwerkbetrieb innerhalb zugelassener Grenzen hält.
26 Elite 23 Installation Guide, Rev. A . Above unit Über der Einheit Under unit Unter der Einheit Note. Air flows in the direction shown (back to front) or in reverse direction (front to back) Hinweis. Luftstrom in der angezeigten Richtung (von vorne nach hinten) oder in umgekehrter Richtung (von hinten nach vorne) Above unit Über der Einheit Under unit Note. Air flows in the direction shown or Unter der Einheit in reverse direction (side to side) Hinweis.
Elite 23 Installation Guide, Rev. A 27 Mounting the drive and connecting cables 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. The drive may be mounted in any orientation (horizontally, vertically, and any combination thereof); however, you must ensure that the drive receives adequate air flow for cooling. 1. Mount the drive to the host system’s chassis using four 6-32 UNC screws.
28 Elite 23 Installation Guide, Rev. A 1. Befestigen Sie das Laufwerk mit vier 6-32-UNC-Schrauben am Gehäuse des Host-Systems. Die beiden Seiten des Laufwerkes sind mit jeweils zwei Befestigungslöchern versehen, die Unterseite des Laufwerkes weist vier weitere Befestigungslöcher auf. Gemessen von der Außenfläche des Gehäuses dürfen die Schrauben maximal 4,318 mm in die Befestigungslöcher des Gehüuses hineinragen. Die Schrauben müssen gleichmäßig, jedoch nicht zu fest, angezogen werden.
Elite 23 Installation Guide, Rev. A 29 defined in IEC 950. Figure 5 provides the pin information for the DC power connector. To connect the DC power cable to the drive, simply insert the cable end into the drive’s DC power connector. 4. Schließen Sie das SCSI-Kabel an den SCSI-Steckverbinder des Laufwerkes an. Das Kabel darf nicht gedehnt oder gedrückt werden und es darf den Luftstrom zur Kühlung des Systems nicht behindern.
30 Elite 23 Installation Guide, Rev. A Note. Signal ground on the printed circuit board assembly (PCB) and the head and disc assembly (HDA) are connected together in this drive and you cannot separate them. Ensure the equipment in which you have mounted the drive is connected directly to the HDA. Maximizing the conductive contact area between HDA ground and system ground may reduce radiated emissions.
Elite 23 Installation Guide, Rev. A 31 elektromagnetische Strahlung fällt in den Zuständigkeitsbereich des Systemdesigners. 5. Replace the host system’s cover. 5. Setzen Sie das Gehäuseoberteil des Host-Systems wieder auf.
32 Elite 23 Installation Guide, Rev. A [3] L F K J H [1] Notes: G [1] Mounting holes two on each side, 6-32 UNC. Max screw length into side of HDA 0.17 in. (4.318 mm). [2] Mounting holes four on bottom, 6-32 UNC. Max screw length into bottom of drive 0.18 in. (4.572 mm). D [3] Power and interface connections. [4] Decorative front panel. Inches A A B C D E F G H J K L E [2] C B Figure 6. 8.000 5.750 2.875 2.950 3.120 0.860 5.500 0.125 3.120 2.950 3.240 ± ± ± ± ± ± ± ± ± ± ± 0.010 0.
Elite 23 Installation Guide, Rev. A 33 Formatting the drive Warning. 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. Note. Seagate is not responsible for lost user data. 1. 2. 3. Turn on DC power. Boot the system from a system floppy disc or from a previously installed hard disc drive if there is one.
34 Elite 23 Installation Guide, Rev. A N drives Setting the SCSI N/ND ID jumpers drives section Use the J4A connector to set the SCSI ID (see Figure 7) on model ST423451N. To change the SCSI ID, install jumpers on the appropriate pins as shown in the illustration. J4A Pin 1 J01 J4B Pin 1 J4A Pin 1 SCSI ID = 0 (default) SCSI ID = 1 SCSI ID = 2 SCSI ID = 3 SCSI ID = 4 SCSI ID = 5 SCSI ID = 6 SCSI ID = 7 Figure 7.
Elite 23 Installation Guide, Rev. A 35 N drives Terminating the drive ST423451N drives are terminated with permanently mounted IC active terminators. If you install one of these drives and it is not on the end of the SCSI bus, disable the terminators by removing the TE jumper from pins 19 and 20 of connector J4A (see Figure 7). If you install the drive on the end of the SCSI bus, enable termination by installing a jumper on pins 19 and 20 of connector J4A.
36 Elite 23 Installation Guide, Rev. A N drives Terminator power There are three possible terminator power configurations for ST423451N drives (see Figure 9). You will not normally need to change this option and can leave the drive configured as it was shipped from the factory. Pin 2 Pin 1 Pin 4 Pin 3 Terminator Power Option (TP) Pos. A Pin 2 J01 Pin 1 Pos. B J01 Pin 4 Pos. 2 Pos. 1 Pin 3 Internal terminator power source. External terminator power source.
Elite 23 Installation Guide, Rev. A 37 N drives Other applicable jumper options Several other jumper options are available as illustrated in Figure 10. J4A Pin 1 J01 J4B J4B Pin 1 Spinup Delay Option (DS) Immediate spinup (if the Start Command option jumper is disconnected) Spinup delay equal to the SCSI Bus ID multiplied by 12 seconds (if the Start Command option jumper is disconnected). Start Command Option (ME) Start spindle according to the Spinup Delay option jumper.
38 Elite 23 Installation Guide, Rev. A W/WD drives Setting the SCSI W/WD ID jumpers drives section Use the J4A jumper block to set the SCSI ID (Figure 11) on models ST423451W/WD. To change the SCSI ID, install jumpers on the appropriate pins as shown in the illustration.
Elite 23 Installation Guide, Rev. A 39 W/WD drives Terminating the drive ST423451W drives are terminated with permanently mounted IC active terminators. If you install one of these drives and it is not on the end of the SCSI bus, disable the terminators by removing the TE jumper from pins 19 and 20 of connector J4A. If you install the drive on the end of the SCSI bus, enable termination by installing a jumper on pins 19 and 20 of connector J4A (see Figure 12). Note.
40 Elite 23 Installation Guide, Rev. A W/WD drives Terminator power There are three possible terminator power configurations for ST423451W drives (see Figure 13). You will not normally need to change this option and can leave the drive configured as it was shipped from the factory. There are two possible terminator power configurations for ST423451WD drives (see Figure 13). Pin 2 Pin 1 Pin 4 Pin 3 Terminator Power Option (TP) Pos. A Pin 2 J01 Pin 1 Pos. B J01 Pin 4 Pos. 2 Pos.
Elite 23 Installation Guide, Rev. A 41 W/WD drives Other applicable jumper options Other option jumpers are available as illustrated below. J4A Pin 1 J01 J4B J4B Pin 1 Spinup Delay Option (DS) Immediate spinup (if the Start Command option jumper is disconnected) Spinup delay equal to the SCSI Bus ID multiplied by 12 seconds (if the Start Command option jumper is disconnected). Start Command Option (ME) Start spindle according to the Spinup Delay option jumper.
42 Elite 23 Installation Guide, Rev. A All drives Active, Ready, and Fault indicators The Active, Ready, and Fault LED indicator connections are shown below. J4A Pin 1 J01 J6 SCSI I/O Connector DC Power Connector J4A Pin 1 J4B Pin 1 Pin 18 Pin 16 Pin 15 Pin 17 Reserved Active LED Connector Fault/Ready LED Connector Terminator Enabled (TE) Reserved Active Note: On some LEDs the flat side of indicator is cathode. CATH Fault CATH Ready CATH Figure 15.
Seagate Technology, Inc. 920 Disc Drive, Scotts Valley, CA 95066-4544, USA Publication Number: 83329130, Rev.